MALICIOUS — 40ca47de2be12884ca8129d1c97ce2c4de6d609e4ff0256a3005c2c9b6dcc7c8
MALICIOUS — 40ca47de2be12884ca8129d1c97ce2c4de6d609e4ff0256a3005c2c9b6dcc7c8 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Vobfus family. 5 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
40ca47de2be12884ca8129d1c97ce2c4de6d609e4ff0256a3005c2c9b6dcc7c8 - SHA-1:
2e9220f8fc0134125232b8fbe673f7652598997d - MD5:
f118bf17e316ed0e84fdbdbdd61fc519 - imphash:
b806352ebc796e5060cd13bc5e12711d - ssdeep:
1536:Qyl0ccgBn+qPOB+dGrNjjmJ2NuKuFr1M5B4QbCcIB6:2gB5OB++jOWM6 - TLSH:
T1B23B91C40CE8E0A1CE6497878E4569FC058EEDABB222507418C9AA1BD7C21FF507D15F - Submitted as: 40ca47de2be12884ca8129d1c97ce2c4de6d609e4ff0256a3005c2c9b6dcc7c8
- File type: pe · Size: 102400 bytes
- Verdict: malicious (99/100) · Family: Vobfus
Detections (5 of 55 engines)
- ClamAV (daily): Win.Trojan.Changeup-6169544-0
- Microsoft Defender: Worm:Win32/Vobfus.EH
- Emsisoft (Emergency Kit): Gen:Variant.Injector.836
- Trellix Stinger (McAfee): W32/Autorun.worm.ru
- Kaspersky (KVRT): Trojan.Win32.Jorik.Vobfus.ahog
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Changeup-6169544-0 (rule
Win.Trojan.Changeup-6169544-0) - engine signal, weight 0.90, confidence 0.95 - 1 behavioral detection(s): Registry Run Key Persistence [high] (rule
tl-run-key) - dynamic signal, weight 0.60, confidence 0.90 - Memory forensics: 4 finding(s), e.g. process hidden from a listing (rule
windows.psxview.PsXView) - memory signal, weight 0.55, confidence 0.85 - Observed at runtime: Registry Run Key Persistence (T1547.001) (rule
Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 30 external host(s) at runtime (30 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1082, T1622, T1497.001 - dynamic signal, weight 0.40, confidence 0.75
- Dropped 1 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)
47876 behavior events · 3 ATT&CK techniques · 4 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
- ns1.spansearcher.net
- ns1.spinsearcher.org
- ns1.player1352.net
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
Dropped files
- C:\Users\analyst\zsrud.exe -
627f9022ac00cf1cb5686c532468affe088713a6a864e09197b13e2bdfb70d5c - 40c63e9188ea6f92a6d5e316c99135980625f165db04e694c01b301f633caf79 -
40c63e9188ea6f92a6d5e316c99135980625f165db04e694c01b301f633caf79 - 7e103b5206ed5dd556338c5a242dff05b1c53595e2ac3120ef8fdcb0fc0bf219 -
7e103b5206ed5dd556338c5a242dff05b1c53595e2ac3120ef8fdcb0fc0bf219 - cd1c153b9f867f9e9e7eb2c120a36d179990e3f0aded59c56c46f5aa8fd9f5fb -
cd1c153b9f867f9e9e7eb2c120a36d179990e3f0aded59c56c46f5aa8fd9f5fb
Embedded URLs
- 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=1787935023&P2=404&P3=2&P4=UM%2fyt3Xgp%2blrdazCnOWTs1ldSoNZV4cHQ4p11xXzgXvnhTYuSWtAGg9vN%2fG8%2bqRNIjpUgW0R93DfO%2f94RoJjBQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/51d86688-616b-47e3-abeb-3df16a1583c5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/51d86688-616b-47e3-abeb-3df16a1583c5?P1=1787935075&P2=404&P3=2&P4=BjfFueDWafRG7dBJxyayvn5GTcFTDx4VmYFep%2fOcqhcueHNAWr2i6NuOOTUOmxJDRGxsJBvfQREK8frrZhGYbA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5?P1=1787331706&P2=404&P3=2&P4=MZ4gcWwSghXbvYwWZR8YuQo%2bbCUXSUROL5E%2brTSCuJPb4AWEFPERYEZDLt%2fc77HAWwa%2fGotMM3khnj4oGLGG6g%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/b56480f9-8215-4de7-ba7e-8e690088d21d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/b56480f9-8215-4de7-ba7e-8e690088d21d?P1=1787331327&P2=404&P3=2&P4=gvEOb7i1BTzF3huUL3zU9AyGhhNng1BH5NggIcv2ggc%2blSIY3INRHvw7gVC1cGvXsNbet2uJykS1ZrnQ39%2fMaQ%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/afb4c1e7-5ab6-4274-bbe6-fa4639876844/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/afb4c1e7-5ab6-4274-bbe6-fa4639876844?P1=1787332884&P2=404&P3=2&P4=F3PgS9VMO%2fod2JqawNZ2IqgMUjWlRPxr2jS8JaZgHDu9DN9sHm45SI3Z%2fcQlcsAGd2CyGtknehKK5YY4vDdAHA%3d%3d&cacheHostOrigin=tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/6c2dbffa-872a-4f74-b39c-0ab782eea5bf/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/6c2dbffa-872a-4f74-b39c-0ab782eea5bf?P1=1787336817&P2=404&P3=2&P4=aDRhRnp25IWAXBU%2brsUYEDmsHlqALIOr3plqvNVwIxL25hCNRvIE6a3PVX2%2fVnLNCr%2frcxGmClnfVEuUPQo17Q%3d%3d&cacheHostOrigin=tlu.dl.delivery.mp.microsoft.com
Embedded domains
- ns1.spansearcher.net
- ns1.spinsearcher.org
- ns1.player1352.net
Embedded IP addresses
- 20.184.175.12
- 4.247.188.233
- 4.230.171.124
- 20.247.184.142
- 74.178.76.128
- 20.42.65.88
- 74.178.76.54
- 20.76.201.171
- 52.123.129.14
- 52.123.128.14
- 40.99.133.226
- 20.42.65.94
- 135.233.45.221
- 52.123.252.213
- 135.234.160.245
- 203.26.79.13
- 52.148.114.188
- 52.123.252.219
- 74.179.71.159
- 52.123.252.203
- 135.233.95.144
- 4.247.188.224
- 20.42.73.30
- 4.209.250.170
- 72.145.35.111
File paths
- C:\Program
- C:\Windows\system32;C:\Windows\system;
More Vobfus samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report