Analysis
- max time kernel
146s - max time network
146s - platform
windows10_x64 - resource
win10v20201028 - 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
- Target xoTrmJx7i6t8dy9.exe
- Size 573KB
- Sample201119-vcjntwvr8a
- SHA256 ed18bf204914e704fe7d77312b00b654d329666334abaf7bd3af546bad9dc4a6
- MD5 51fd98c3d315f959249a13de6f2b7960
- SHA1 3f9bfd3af0ac8868b19b1337b89ede5a2afbaba3
- SHA512 db3c05302eb380a4b0717c19753a73d3a056870179b8df233ff95f0ab83cb1ffa0a01c677d414d3113cc4475270fbf54dcc7e080fd2d8684313427a351bc934a
- MD5 SHA1 SHA512
Malware Config
Extracted
-
Protocol
ftp
-
Host
orisinlog.com
-
Port
21
-
Username
-
Password
fENCThl=g{Ft
Extracted
-
snakekeylogger
-
Protocol
ftp
-
Host
ftp://orisinlog.com/
-
Port
21
-
Username
-
Password
fENCThl=g{Ft
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 1 IoCs
resource yara_rule behavioral2/memory/4680-12-0x000000000AE60000-0x000000000AEC3000-memory.dmp family_snakekeylogger - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 21 checkip.dyndns.org 24 freegeoip.app 25 freegeoip.app - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4296 schtasks.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4680 xoTrmJx7i6t8dy9.exe 4680 xoTrmJx7i6t8dy9.exe 4680 xoTrmJx7i6t8dy9.exe 4680 xoTrmJx7i6t8dy9.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4680 xoTrmJx7i6t8dy9.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4680 wrote to memory of 4296 4680 xoTrmJx7i6t8dy9.exe 78 PID 4680 wrote to memory of 4296 4680 xoTrmJx7i6t8dy9.exe 78 PID 4680 wrote to memory of 4296 4680 xoTrmJx7i6t8dy9.exe 78
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:4680 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yYezRekP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD799.tmp"2⤵
- Creates scheduled task(s)
PID:4296
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