MALICIOUS — acbbc6d8808c3df26d35f319fd9a34be2a7a01fd71b64109ed0aba4a907da7b5
MALICIOUS — acbbc6d8808c3df26d35f319fd9a34be2a7a01fd71b64109ed0aba4a907da7b5 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (94/100), attributed to the ASPack family. 5 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
acbbc6d8808c3df26d35f319fd9a34be2a7a01fd71b64109ed0aba4a907da7b5 - SHA-1:
a64ff686a1b716c2c3394324df4d4048317e2b7d - MD5:
a4ed2004f39050f44444ad52f126ca33 - imphash:
7befc557803545899f169487858a35c0 - ssdeep:
49152:YopOCeYAEk+M/bOPi7G2GzhNZczVFfSabdaf:YcOUbM/bOPt2GVURFqabAf - TLSH:
T10A5C3348F59882B7EF11BF384935340F2A1430A467627485D39B21ABB65D2BFBC1C987 - Submitted as: acbbc6d8808c3df26d35f319fd9a34be2a7a01fd71b64109ed0aba4a907da7b5
- File type: pe · Size: 2480928 bytes
- Verdict: malicious (94/100) · Family: ASPack
Detections (5 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:,,
- YARA: Yara-Rules community: YR_Packer_ASPack_MPRESS
- Detect It Easy (packer/type): DIE:Microsoft Linker
- Microsoft Defender: Trojan:Win32/Wacatac.C!ml
- Kaspersky (KVRT): not-a-virus:UDS:AdWare.Win32.Wajam.bxum
MITRE ATT&CK
Why this verdict
The malicious score of 94/100 is the fusion of 10 weighted signals:
- Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 25 external host(s) at runtime (22 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1497, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- YARA: Yara-Rules community flagged YR_Packer_ASPack_MPRESS (rule
YR_Packer_ASPack_MPRESS) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule
DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: http://t1.symcb.com/ThawtePCA.crl0, http://tl.symcb.com/tl.crl0, https://www.thawte.com/cps0/ - static signal, weight 0.35, confidence 0.60
- Packing/obfuscation: high-entropy-sections:,,, Microsoft Linker - static signal, weight 0.25, confidence 0.55
- Dropped 7 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
17356 behavior events · 2 ATT&CK techniques · 26 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- softwarefantasy.com
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\decline.ico -
447a3dd925c7c0c7409851fec40f21fae941bebccb673dd21f26fb13e1f839d0 - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\nsDialogs.dll -
dad73112811567680f6cd57918ed1dff059a4d29727e0007ea48393e81e4976a - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\Dialogs.dll -
4e8ed86c650f70117c4d3aa8091b66de8e95e6045cc36eb42abed20fa91f05fc - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\Banner.dll -
33409ceab861b0164a9ec3a0395934cade72e2ef1f14a9468a604892b2bbcbd9 - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\INetC2.dll -
5520208a33e6409c129b4ea1270771f741d95afe5b048c2a1e6a2cc2ad829934 - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\nsProcess.dll -
579a034ff5ab9b732a318b1636c2902840f604e8e664f5b93c07a99253b3c9cf - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\nature.bmp -
ffdef65e8bbd876e5d35eae2452dae032a64d1d95c8c27bf45627733b66695de - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\accept.ico -
6f2a7202a5e4addb1d1bd6dc1704bd2ee14df229844847b57043545e4a689fe5 - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\inetc.dll -
3bce87b66d9272c82421920c34b0216e12c57a437d1955c36f23c74c1a01d420 - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\Image.bmp -
c82ff117c6325a2530a226c0c91109395c52e895c227ac5e2973bd190a612402 - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\eula.rtf -
aee3728456d3613775da93451174af3b3c5f23a2a0012e46037af93d2bec8dd2 - C:\Users\analyst\AppData\Local\Temp\nsb4DBE.tmp -
6b8fbf120f40230554a0c77b8dbcc4f880e9d382e6f041dd31d82dbb5d3ce4be - C:\Users\analyst\AppData\Local\Microsoft\Windows\Explorer\iconcache_32.db -
b4d9bc494797fd3dd18c2d8994451f500f3030b3c6ebb4f8bb4bd9c90b674ad6 - C:\Users\analyst\AppData\Local\Temp\nskA1FA.tmp\System.dll -
bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1 - C:\Users\analyst\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db -
b2c8252de529578d7db3921f47a5b9c04a9b6a1b5075ceb0dec5c426b2e94bce
Embedded URLs
- http://crl.thawte.com/ThawteTimestampingCA.crl0
- http://t1.symcb.com/ThawtePCA.crl0
- http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
- http://ts-crl.ws.symantec.com/tss-ca-g2.crl0
- http://tl.symcb.com/tl.crl0
- https://www.thawte.com/cps0/
- https://www.thawte.com/repository0W
- http://tl.symcb.com/tl.crt0
- https://d.symcb.com/rpa0
- http://s.symcb.com/universal-root.crl0
- https://d.symcb.com/rpa0@
- http://ts-crl.ws.symantec.com/sha256-tss-ca.crl0
- http://ts-aia.ws.symantec.com/sha256-tss-ca.cer0
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787898657&P2=404&P3=2&P4=ddiA4ttvTEO%2bTkoMHKb0ANbQpMaxBy4TzemXY7PiBplBFhfuDezHC9yamXh40DnGEWrUQ%2bczlyw562D1RBxUdw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787898734&P2=404&P3=2&P4=Z5fHTHqlTiR3z1dGMlodba%2byFqL5axd94gh%2bYal1YvXGAfNGQMA2f6ezRstq3%2fDHkjhAR86%2bjArtAgL30c0Dog%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- crl.thawte.com
- t1.symcb.com
- ts-aia.ws.symantec.com
- ts-crl.ws.symantec.com
- tl.symcb.com
- www.thawte.com
- d.symcb.com
- s.symcb.com
- softwarefantasy.com
Embedded IP addresses
- 4.150.223.103
- 4.230.171.124
- 57.154.63.210
- 20.247.184.142
- 52.123.252.247
- 74.179.77.204
- 74.178.76.54
- 20.184.175.7
- 4.150.223.114
- 20.236.44.162
- 52.123.129.14
- 172.66.2.5
- 52.123.128.14
- 203.26.79.13
- 135.233.45.221
- 20.184.175.14
- 51.116.253.170
- 74.178.232.29
- 52.110.12.18
- 52.110.12.1
- 135.234.160.246
- 52.148.114.188
- 57.155.104.224
- 72.145.35.104
- 52.110.12.55
More ASPack samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report