Analysis
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max time kernel
65s -
max time network
70s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
19-11-2020 14:44
Static task
static1
Behavioral task
behavioral1
Sample
xoTrmJx7i6t8dy9.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
xoTrmJx7i6t8dy9.exe
Resource
win10v20201028
General
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Target
xoTrmJx7i6t8dy9.exe
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Size
573KB
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MD5
51fd98c3d315f959249a13de6f2b7960
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SHA1
3f9bfd3af0ac8868b19b1337b89ede5a2afbaba3
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SHA256
ed18bf204914e704fe7d77312b00b654d329666334abaf7bd3af546bad9dc4a6
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SHA512
db3c05302eb380a4b0717c19753a73d3a056870179b8df233ff95f0ab83cb1ffa0a01c677d414d3113cc4475270fbf54dcc7e080fd2d8684313427a351bc934a
Malware Config
Extracted
Protocol: ftp- Host:
orisinlog.com - Port:
21 - Username:
[email protected] - Password:
fENCThl=g{Ft
Extracted
snakekeylogger
Protocol: ftp- Host:
ftp://orisinlog.com/ - Port:
21 - Username:
[email protected] - Password:
fENCThl=g{Ft
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1004-7-0x0000000008150000-0x00000000081B3000-memory.dmp family_snakekeylogger -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 9 freegeoip.app 10 freegeoip.app 4 checkip.dyndns.org -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
xoTrmJx7i6t8dy9.exepid process 1004 xoTrmJx7i6t8dy9.exe 1004 xoTrmJx7i6t8dy9.exe 1004 xoTrmJx7i6t8dy9.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
xoTrmJx7i6t8dy9.exedescription pid process Token: SeDebugPrivilege 1004 xoTrmJx7i6t8dy9.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
xoTrmJx7i6t8dy9.exedescription pid process target process PID 1004 wrote to memory of 1636 1004 xoTrmJx7i6t8dy9.exe schtasks.exe PID 1004 wrote to memory of 1636 1004 xoTrmJx7i6t8dy9.exe schtasks.exe PID 1004 wrote to memory of 1636 1004 xoTrmJx7i6t8dy9.exe schtasks.exe PID 1004 wrote to memory of 1636 1004 xoTrmJx7i6t8dy9.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\xoTrmJx7i6t8dy9.exe"C:\Users\Admin\AppData\Local\Temp\xoTrmJx7i6t8dy9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1004 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yYezRekP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF892.tmp"2⤵
- Creates scheduled task(s)
PID:1636
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
e84ff40a8369c9169157e2f3af16421d
SHA1d7c1858a7128c7b8e4659db2ddb17da01999dfbd
SHA25672187ba29360c83a2293a087b69e0945c17d38c5bd363c6eb1f771c090dad302
SHA51262ebf2beb18ce068ddf9d6ea4401c6f1b2e6066fba0eda38add27a46a140ecc2d4aedf10d4b021d9409b0c6182a5a7bdb07d181143d8a125f232ea61b28f86a8