snakekeylogger | acfe978dd0e8daffc5e32ef3ef929ec071a0fcdc30fd0b350c23aee1f411f898

General

Target

dekontu.exe
Size

1007KB
MD5

a0ccfa1aec03fb62f9d0b160206216a1
SHA1

43c9ee1870d7e8418c39b91dac1cc9f84c54e60c
SHA256

acfe978dd0e8daffc5e32ef3ef929ec071a0fcdc30fd0b350c23aee1f411f898
SHA512

202ec9e952d670ca33206528d7f5cabf23ecfa2f32bdd1271909f89a98c40278ad00d8d1c221d8212b2e7404e28a7c3f6fe9e1d1bc53a7d0f361e7b09e24f42e
SSDEEP

24576:cu6J33O0c+JY5UZ+XC0kGso6FaeatxNQzFDbmEWY:Gu0c++OCvkGs9Faeir+b0Y

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7525931722:AAHv5VReYz4Tdv44qTVu1nWYViZknndh3TU/sendMessage?chat_id=7361435574

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4196-7-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
14	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2276 set thread context of 4196	2276	dekontu.exe	82

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3616	2276	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dekontu.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4196	RegSvcs.exe
4196	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2276	dekontu.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4196	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2276	dekontu.exe
2276	dekontu.exe
2276	dekontu.exe
2276	dekontu.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2276	dekontu.exe
2276	dekontu.exe
2276	dekontu.exe
2276	dekontu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 4196	2276	dekontu.exe	82
PID 2276 wrote to memory of 4196	2276	dekontu.exe	82
PID 2276 wrote to memory of 4196	2276	dekontu.exe	82
PID 2276 wrote to memory of 4196	2276	dekontu.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\dekontu.exe
"C:\Users\Admin\AppData\Local\Temp\dekontu.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\dekontu.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 696
  2⤵
  - Program crash
  PID:3616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2276 -ip 2276
1⤵
PID:4728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/2276-6-0x00000000012D0000-0x00000000016D0000-memory.dmp

Filesize
4.0MB

Download
memory/4196-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4196-8-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/4196-9-0x00000000060B0000-0x0000000006654000-memory.dmp

Filesize
5.6MB

Download
memory/4196-10-0x00000000059C0000-0x0000000005A5C000-memory.dmp

Filesize
624KB

Download
memory/4196-11-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4196-12-0x0000000006CF0000-0x0000000006D40000-memory.dmp

Filesize
320KB

Download
memory/4196-13-0x0000000006F10000-0x00000000070D2000-memory.dmp

Filesize
1.8MB

Download
memory/4196-14-0x0000000006DE0000-0x0000000006E72000-memory.dmp

Filesize
584KB

Download
memory/4196-15-0x0000000006D70000-0x0000000006D7A000-memory.dmp

Filesize
40KB

Download
memory/4196-16-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/4196-17-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download

Analysis

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