snakekeylogger | cdc918638a38eb856105db8b22281142b5cc58f6538ad4e848e45d552332b5fd

General

Target

C103-202005514-05,PDF.exe
Size

584KB
MD5

eedd3f21579280588e987a0431315356
SHA1

e4232454d3c2e86fedba56dbb0f83363dbfe96bf
SHA256

cdc918638a38eb856105db8b22281142b5cc58f6538ad4e848e45d552332b5fd
SHA512

f1934302099a9d9e45e9aeba3f7fea64fb15021888580bfbe2e21e3a7183e2e01919f2f36163a328480e6d89607baf8ac8ba7180f0975cb103c1e37850d79c64

Score

10^/10

snakekeylogger keylogger stealer

Malware Config

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3008-18-0x0000000000400000-0x000000000046A000-memory.dmp	family_snakekeylogger
behavioral2/memory/3008-19-0x000000000046463E-mapping.dmp	family_snakekeylogger

Drops startup file 2 IoCs

Processes:

Powershell.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\I$s#$lT3ssl.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\I$s#$lT3ssl.exe	Powershell.exe

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

11 checkip.dyndns.org
14 freegeoip.app
15 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

C103-202005514-05,PDF.exe

description pid process target process

PID 652 set thread context of 3008 652 C103-202005514-05,PDF.exe RegAsm.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2204 652 WerFault.exe C103-202005514-05,PDF.exe

flow	ioc
11	checkip.dyndns.org
14	freegeoip.app
15	freegeoip.app

description	pid	process	target process
PID 652 set thread context of 3008	652	C103-202005514-05,PDF.exe	RegAsm.exe

pid	pid_target	process	target process
2204	652	WerFault.exe	C103-202005514-05,PDF.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

C103-202005514-05,PDF.exePowershell.exeRegAsm.exeWerFault.exe

pid	process
652	C103-202005514-05,PDF.exe
652	C103-202005514-05,PDF.exe
652	C103-202005514-05,PDF.exe
652	C103-202005514-05,PDF.exe
3848	Powershell.exe
3008	RegAsm.exe
3848	Powershell.exe
3848	Powershell.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe
2204	WerFault.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Powershell.exeC103-202005514-05,PDF.exeRegAsm.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	3848	Powershell.exe
Token: SeDebugPrivilege	652	C103-202005514-05,PDF.exe
Token: SeDebugPrivilege	3008	RegAsm.exe
Token: SeRestorePrivilege	2204	WerFault.exe
Token: SeBackupPrivilege	2204	WerFault.exe
Token: SeDebugPrivilege	2204	WerFault.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

C103-202005514-05,PDF.exe

description	pid	process	target process
PID 652 wrote to memory of 3848	652	C103-202005514-05,PDF.exe	Powershell.exe
PID 652 wrote to memory of 3848	652	C103-202005514-05,PDF.exe	Powershell.exe
PID 652 wrote to memory of 3848	652	C103-202005514-05,PDF.exe	Powershell.exe
PID 652 wrote to memory of 200	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 200	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 200	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 204	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 204	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 204	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 3008	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 3008	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 3008	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 3008	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 3008	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 3008	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 3008	652	C103-202005514-05,PDF.exe	RegAsm.exe
PID 652 wrote to memory of 3008	652	C103-202005514-05,PDF.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\C103-202005514-05,PDF.exe
"C:\Users\Admin\AppData\Local\Temp\C103-202005514-05,PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:652

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\C103-202005514-05,PDF.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\I$s#$lT3ssl.exe'
2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3848

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
PID:200

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
PID:204

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 652 -s 1660
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2204

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/652-9-0x00000000050F0000-0x00000000050F1000-memory.dmp

Filesize
4KB

Download
memory/652-3-0x0000000000530000-0x0000000000531000-memory.dmp

Filesize
4KB

Download
memory/652-5-0x00000000051F0000-0x00000000051F1000-memory.dmp

Filesize
4KB

Download
memory/652-6-0x0000000004DC0000-0x0000000004E36000-memory.dmp

Filesize
472KB

Download
memory/652-7-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Filesize
4KB

Download
memory/652-8-0x00000000056F0000-0x00000000056F1000-memory.dmp

Filesize
4KB

Download
memory/652-17-0x0000000004EA0000-0x0000000004EAF000-memory.dmp

Filesize
60KB

Download
memory/652-10-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

Filesize
4KB

Download
memory/652-38-0x0000000005D20000-0x0000000005D21000-memory.dmp

Filesize
4KB

Download
memory/652-37-0x0000000005D60000-0x0000000005D61000-memory.dmp

Filesize
4KB

Download
memory/652-32-0x0000000005B40000-0x0000000005B41000-memory.dmp

Filesize
4KB

Download
memory/652-2-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/2204-45-0x0000000004E30000-0x0000000004E31000-memory.dmp

Filesize
4KB

Download
memory/3008-19-0x000000000046463E-mapping.dmp

Download
memory/3008-31-0x0000000005520000-0x0000000005521000-memory.dmp

Filesize
4KB

Download
memory/3008-18-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/3008-39-0x0000000006470000-0x0000000006471000-memory.dmp

Filesize
4KB

Download
memory/3008-34-0x00000000064E0000-0x00000000064E1000-memory.dmp

Filesize
4KB

Download
memory/3008-21-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/3848-22-0x0000000008150000-0x0000000008151000-memory.dmp

Filesize
4KB

Download
memory/3848-20-0x0000000007A80000-0x0000000007A81000-memory.dmp

Filesize
4KB

Download
memory/3848-29-0x0000000008820000-0x0000000008821000-memory.dmp

Filesize
4KB

Download
memory/3848-30-0x0000000008BB0000-0x0000000008BB1000-memory.dmp

Filesize
4KB

Download
memory/3848-15-0x0000000005010000-0x0000000005011000-memory.dmp

Filesize
4KB

Download
memory/3848-14-0x0000000007AB0000-0x0000000007AB1000-memory.dmp

Filesize
4KB

Download
memory/3848-33-0x0000000008C00000-0x0000000008C01000-memory.dmp

Filesize
4KB

Download
memory/3848-23-0x00000000082C0000-0x00000000082C1000-memory.dmp

Filesize
4KB

Download
memory/3848-13-0x0000000005060000-0x0000000005061000-memory.dmp

Filesize
4KB

Download
memory/3848-12-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/3848-16-0x0000000005012000-0x0000000005013000-memory.dmp

Filesize
4KB

Download
memory/3848-40-0x0000000009900000-0x0000000009901000-memory.dmp

Filesize
4KB

Download
memory/3848-41-0x00000000097F0000-0x00000000097F1000-memory.dmp

Filesize
4KB

Download
memory/3848-42-0x0000000009880000-0x0000000009881000-memory.dmp

Filesize
4KB

Download
memory/3848-44-0x0000000005013000-0x0000000005014000-memory.dmp

Filesize
4KB

Download
memory/3848-11-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads