MALICIOUS — c65543f843ee46ae3a5044502ae1e05d504a9db0af598c608378e5c60f936314
MALICIOUS — c65543f843ee46ae3a5044502ae1e05d504a9db0af598c608378e5c60f936314 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Mbrlock family. 6 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
c65543f843ee46ae3a5044502ae1e05d504a9db0af598c608378e5c60f936314 - SHA-1:
412786d8428a8eb3476a4e18989b2e3efc56bbbd - MD5:
8fc3fb5bbf16ede6720c89eb1ca21dfc - imphash:
8d08b9aff260461badc1821f4f717247 - ssdeep:
49152:YjuIGGXJLrduEyztsR7OQzQzAmjqamm173:YKIpdd/yzt67OU7ap - TLSH:
T1765A237E130B7403DE2AD62564863FCD08637C69507D5888553F84BE83F6CEB27816AA - Submitted as: c65543f843ee46ae3a5044502ae1e05d504a9db0af598c608378e5c60f936314
- File type: pe · Size: 2079232 bytes
- Verdict: malicious (99/100) · Family: Mbrlock
Detections (6 of 55 engines)
- capa (capabilities): capability:collection/keylog
- ClamAV (daily): Win.Trojan.Mbrlock-9779766-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Microsoft Defender: Trojan:Win32/Blocker.EM!MTB
- Emsisoft (Emergency Kit): Gen:Variant.Genie.689
- Kaspersky (KVRT): HEUR:Trojan.Win32.Agent.gen
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Mbrlock-9779766-0 (rule
Win.Trojan.Mbrlock-9779766-0) - engine signal, weight 0.90, confidence 0.95 - Dropped a malicious payload: OScam Collection.htm - dynamic signal, weight 0.62, confidence 0.90
- 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 - capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 27 external host(s) at runtime (22 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497, T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
18741 behavior events · 2 ATT&CK techniques · 8 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
- sunray1975.zapto.org
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- settings-win.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\top2.gif -
7cb06f8dbfa5f13359e2dcee822fae73ef01a00ff29ce99ec401a73017875aee - C:\Users\analyst\AppData\Local\Temp\OScam Collection.htm -
fcd785d06efc594628f2460b3098d5b97633f2e4587be0fa50dd8cd60a447407 - C:\Users\analyst\AppData\Local\Microsoft\Internet Explorer\MSIMGSIZ.DAT -
b0715c24eef4c3d20c812bb858a4e50569a836f0217c7652fb350be953e5f50d - C:\Users\analyst\AppData\Roaming\Scegli_nome_allegato.exe -
ab01a333f38605cbcebd80e0a84ffae2803a9b4f6bebb1e9f773e949a87cb420 - C:\Users\analyst\AppData\Roaming\7D57AD13E21.exe -
64778c9ea7703011afe1a37c6d610a171db8c1ba105484d84d00209b8ce2f0b7 - ca517a62cc4bd322c4afb74599b3f4a6f414d0fb6f750eae56a0d9c95d997f49 -
ca517a62cc4bd322c4afb74599b3f4a6f414d0fb6f750eae56a0d9c95d997f49 - 0367653f24003fae1324a91b98f41caabdd5d8578a49132aa0222f02d2a106c5 -
0367653f24003fae1324a91b98f41caabdd5d8578a49132aa0222f02d2a106c5 - 377d41f508a9dcbbe8cdde78c0f02d43996a4e03bf2089bc4bc48e09f180dbff -
377d41f508a9dcbbe8cdde78c0f02d43996a4e03bf2089bc4bc48e09f180dbff
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=1787898068&P2=404&P3=2&P4=k%2fVt9NI2vN9vET9j2gWZXqCuZWELoVijVCIOOL6gFzeSHU%2fUnustLx5I2i338rumGKwLslAT%2f6bublSHSYFxLw%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=1787898165&P2=404&P3=2&P4=VtSaOzkQ0DMT%2b6nZg3IesHqrdrXRkN6IxSdRNSuK9OU5MmMei%2f2OxM0meYchTmvsHbJ4czawFTEjJNOucqBARA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- hb.za
- sunray1975.zapto.org
Embedded IP addresses
- 20.184.175.11
- 40.84.97.4
- 52.230.60.54
- 4.230.171.124
- 20.42.179.192
- 74.179.77.204
- 4.150.223.105
- 74.178.240.51
- 20.231.239.246
- 52.123.129.14
- 52.123.128.14
- 40.99.134.18
- 20.42.73.31
- 203.26.79.13
- 4.150.223.103
- 135.234.160.245
- 92.223.78.30
- 162.159.142.9
- 52.123.252.198
- 135.232.92.34
- 52.148.114.188
- 135.233.45.222
- 72.154.7.97
- 172.215.188.232
- 74.178.232.29
File paths
- B:\:t:
- X:\:`:d:h:l:p:t:
- X:\:`:d:h:l:p:t:x:
- J:\:`:d:h:
- I:\ba
More Mbrlock samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report