MALICIOUS — 31ea62cc3397d4211f004ac25421e4f3245e4331cd7b17e2fcbc92d61e95089e
MALICIOUS — 31ea62cc3397d4211f004ac25421e4f3245e4331cd7b17e2fcbc92d61e95089e is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Gotango family. 9 of 55 detection engines flagged it, exhibiting 5 ATT&CK techniques.
Identification
- SHA-256:
31ea62cc3397d4211f004ac25421e4f3245e4331cd7b17e2fcbc92d61e95089e - SHA-1:
2e2589e124acb7f4147bc1428ced6cdb6f802b0f - MD5:
29480a89676c4b1fa26fbf0b7ed3a6d1 - imphash:
da06bd93d6a5615b26448a00003c5c3d - ssdeep:
24576:80W8HM9IgSFeG4VP47LtOnjhgWHeRHcoZlG4g5wDQLjtBT:86i0cnlHeRrlG4g5ecj7 - TLSH:
T103547C3611526656F1E1F6E8AA5E8F5C8023989D31BB0FCCDA83E09C32DEC1B7017995 - Submitted as: 31ea62cc3397d4211f004ac25421e4f3245e4331cd7b17e2fcbc92d61e95089e
- File type: pe · Size: 1144292 bytes
- Verdict: malicious (100/100) · Family: Gotango
Detections (9 of 55 engines)
- capa (capabilities): capability:collection/keylog
- ClamAV (daily): Win.Malware.Gotango-7000352-0
- YARA: delivr.to detections: DLV_Maldoc_VBA_AutoExec
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: Stratosphere IPS: STRATO_Malicious_UserAgent
- YARA: MalwareAnalyser community pack: TL_Windows_Persistence_RunKey
- Microsoft Defender: Trojan:Win32/QQPass!pz
- Emsisoft (Emergency Kit): Gen:Variant.Barys.463429
- Kaspersky (KVRT): Trojan.Win32.Agent.td
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 14 weighted signals:
- ClamAV (daily) flagged Win.Malware.Gotango-7000352-0 (rule
Win.Malware.Gotango-7000352-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 2 finding(s), e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.50, confidence 0.85 - capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 19 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001 - dynamic signal, weight 0.40, confidence 0.75
- YARA: delivr.to detections flagged DLV_Maldoc_VBA_AutoExec (rule
DLV_Maldoc_VBA_AutoExec) - engine signal, weight 0.35, confidence 0.70 - YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - YARA: Stratosphere IPS flagged STRATO_Malicious_UserAgent (rule
STRATO_Malicious_UserAgent) - engine signal, weight 0.35, confidence 0.70 - YARA: MalwareAnalyser community pack flagged TL_Windows_Persistence_RunKey (rule
TL_Windows_Persistence_RunKey) - engine signal, weight 0.35, confidence 0.70 - persist via registry run key (rule
persist via registry run key) - capa signal, weight 0.35, confidence 0.60 - Embedded network infrastructure: http://sf.symcb.com/sf.crl0a, https://d.symcb.com/rpa0, http://sf.symcb.com/sf.crt0 - static signal, weight 0.35, confidence 0.60
- communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - enumerate processes (rule
enumerate processes) - capa signal, weight 0.20, confidence 0.60 - Dropped 2 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Dynamic analysis (windows)
11509 behavior events · 0 ATT&CK techniques · 2 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
- 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
- officeclient.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Roaming\Microsoft\svchcst.exe -
04d3af5b3b1147116fced795f6987eacccc3a4ca187d93233442e665afcb9dd0 - C:\Users\analyst\AppData\Roaming\Microsoft\VBS3.vbs -
f55a70433e382a87cc4c82d9d5e0b0b9ddfb2761543f6f2d6c832787da612813
Embedded URLs
- http://crl.thawte.com/ThawteTimestampingCA.crl0
- http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
- http://ts-crl.ws.symantec.com/tss-ca-g2.crl0
- https://www.verisign.com/rpa
- http://sf.symcb.com/sf.crl0a
- https://d.symcb.com/rpa0
- http://sf.symcb.com/sf.crt0
- https://www.verisign.com/cps0*
- https://www.verisign.com/rpa0
- http://logo.verisign.com/vslogo.gif04
- http://crl.verisign.com/pca3-g5.crl04
- http://sv.symcb.com/sv.crl0a
- http://sv.symcb.com/sv.crt0
- http://www.symauth.com/cps0
- http://www.symauth.com/rpa00
- http://s1.symcb.com/pca3-g5.crl0
- http://www.dywt.com.cn
- 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/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787791567&P2=404&P3=2&P4=WIWOfa4XVoe9JXAvzS84%2b9%2bbyo%2bCaQSGFKYKa4Wm83aztILtO5I8fr1BMhRKDG7jGllb0ZsBv28%2bcR0okEjUZw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- t.it
- proc.name
- crl.thawte.com
- ts-aia.ws.symantec.com
- ts-crl.ws.symantec.com
- www.verisign.com
- sf.symcb.com
- d.symcb.com
- logo.verisign.com
- crl.verisign.com
- sv.symcb.com
- www.symauth.com
- s1.symcb.com
- www.dywt.com.cn
Embedded IP addresses
- 4.150.223.106
- 52.123.252.198
- 4.230.171.124
- 48.211.4.16
- 20.247.185.124
- 135.233.95.144
- 20.165.94.54
- 20.42.73.28
- 20.42.65.91
- 52.123.128.14
- 20.236.44.162
- 52.123.129.14
- 135.234.160.245
- 203.26.79.13
- 52.148.114.188
- 72.145.35.100
- 52.110.12.16
- 74.178.76.44
- 52.110.12.32
Registry keys
- HKLM\SYSTEM\CurrentControlSet\Control\Terminal
File paths
- c:\windows\system32\termsrv.dll
- C:\WINDOWS\system32\termsrv.dll
- C:\WINDOWS\system32\Termsrvs.dll
- C:\ProgramData\Microsoft\Windows\Start
- C:\Documents
More Gotango samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report