snakekeylogger | 05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5

General

Target

05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe
Size

962KB
MD5

366824f3f475e44ac5f51c1d8ce65567
SHA1

f8fa3c60dbc697bdf85e01a8f3df52437ebfae19
SHA256

05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5
SHA512

fe4063e14f699b19e65dad1eb5cb8538973719ac623e283050f2a30e30323af5725f94e070dd608565f44c2820f28b85f61a1be390d8318e43e68aa0f07ae999
SSDEEP

12288:4tb20Qc3lT7af41ePBRYuQLKpqeUhbTv5OFgNuPPpHSgav79vMFw7v2o1j1Qq6A:4tb20pkaCqT5TBWgNQ7aj9nv2sJQq6A

Score

10^/10

snakekeylogger collection discovery evasion keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7807072238:AAGtzAOTofEY8lBHcrZusyYa_emOxp-S_-s/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/3236-12-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	REG.exe

Disables Task Manager via registry modification
evasion

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\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
8	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4992 set thread context of 3236	4992	05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe	86

Program crash 1 IoCs

pid	pid_target	Process	procid_target
400	4992	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	REG.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4328	REG.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3236	RegSvcs.exe
3236	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4992	05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3236	RegSvcs.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 3236	4992	05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe	86
PID 4992 wrote to memory of 3236	4992	05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe	86
PID 4992 wrote to memory of 3236	4992	05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe	86
PID 4992 wrote to memory of 3236	4992	05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe	86
PID 3236 wrote to memory of 4328	3236	RegSvcs.exe	90
PID 3236 wrote to memory of 4328	3236	RegSvcs.exe	90
PID 3236 wrote to memory of 4328	3236	RegSvcs.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe
"C:\Users\Admin\AppData\Local\Temp\05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\05842c0051350fafdd6963c5cdf746edc63b42ea66cc9235ff671f7fec70dcf5.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:3236
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
    3⤵
    - Disables RegEdit via registry modification
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:4328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4992 -s 656
  2⤵
  - Program crash
  PID:400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4992 -ip 4992
1⤵
PID:4648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

Replay Monitor

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Downloads

memory/3236-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3236-13-0x0000000073FCE000-0x0000000073FCF000-memory.dmp

Filesize
4KB

Download
memory/3236-14-0x0000000005D40000-0x00000000062E4000-memory.dmp

Filesize
5.6MB

Download
memory/3236-15-0x0000000005830000-0x00000000058CC000-memory.dmp

Filesize
624KB

Download
memory/3236-16-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3236-17-0x0000000006B50000-0x0000000006BE2000-memory.dmp

Filesize
584KB

Download
memory/3236-18-0x0000000006BF0000-0x0000000006C40000-memory.dmp

Filesize
320KB

Download
memory/3236-19-0x0000000006E10000-0x0000000006FD2000-memory.dmp

Filesize
1.8MB

Download
memory/3236-20-0x0000000006D60000-0x0000000006D6A000-memory.dmp

Filesize
40KB

Download
memory/3236-21-0x0000000073FCE000-0x0000000073FCF000-memory.dmp

Filesize
4KB

Download
memory/3236-22-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/4992-11-0x0000000001130000-0x0000000001530000-memory.dmp

Filesize
4.0MB

Download

Analysis

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