snakekeylogger | 0742d441e028c5833d9da411c05e8494179d1ea34d1b7be02062664635eb9460

General

Target

doc22042119500.pdf.exe
Size

1.0MB
MD5

70f47b02d8f79ac207da3ee5d4eac29f
SHA1

a170afcbce17ab9471069728d88dc2a1f9229cd5
SHA256

3bea986bab8cae3a2a1f7ccb0cd948a4c72cd6ea55b7169948594f6c64f2f5ad
SHA512

39f2470c2f3b7865227777e5182d5c34660b247824dae39eced2800c9873e87380ca935b4fdd63221bd408c57cd43d46a56abd047b2effa9bed63f59a2f7e227
SSDEEP

24576:Gu6J33O0c+JY5UZ+XC0kGso6FamBSyrDRFCgWY:Iu0c++OCvkGs9Fam0ypWY

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7125297965:AAFl6eQAjxqGeAfWHpfHbGAtADDAZUyFidM/sendMessage?chat_id=6367688286

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4800-12-0x0000000000400000-0x0000000000426000-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-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\15.0\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 3536 set thread context of 4800	3536	doc22042119500.pdf.exe	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1812	3536	WerFault.exe	82

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	doc22042119500.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4800	RegSvcs.exe
4800	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3536	doc22042119500.pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4800	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3536	doc22042119500.pdf.exe
3536	doc22042119500.pdf.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3536	doc22042119500.pdf.exe
3536	doc22042119500.pdf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3536 wrote to memory of 4800	3536	doc22042119500.pdf.exe	83
PID 3536 wrote to memory of 4800	3536	doc22042119500.pdf.exe	83
PID 3536 wrote to memory of 4800	3536	doc22042119500.pdf.exe	83
PID 3536 wrote to memory of 4800	3536	doc22042119500.pdf.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\doc22042119500.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\doc22042119500.pdf.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:3536
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\doc22042119500.pdf.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:4800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 684
  2⤵
  - Program crash
  PID:1812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3536 -ip 3536
1⤵
PID:208

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

Replay Monitor

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Downloads

memory/3536-11-0x0000000000980000-0x0000000000D80000-memory.dmp

Filesize
4.0MB

Download
memory/4800-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4800-13-0x0000000073E9E000-0x0000000073E9F000-memory.dmp

Filesize
4KB

Download
memory/4800-14-0x0000000005A00000-0x0000000005FA4000-memory.dmp

Filesize
5.6MB

Download
memory/4800-15-0x00000000054F0000-0x000000000558C000-memory.dmp

Filesize
624KB

Download
memory/4800-16-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/4800-17-0x00000000067E0000-0x0000000006830000-memory.dmp

Filesize
320KB

Download
memory/4800-18-0x0000000006A00000-0x0000000006BC2000-memory.dmp

Filesize
1.8MB

Download
memory/4800-19-0x00000000068D0000-0x0000000006962000-memory.dmp

Filesize
584KB

Download
memory/4800-20-0x0000000006860000-0x000000000686A000-memory.dmp

Filesize
40KB

Download
memory/4800-21-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download

Analysis

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