snakekeylogger | b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1

General

Target

b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe
Size

810KB
MD5

f614cd44a2ca0676523d3f9d23ae23b2
SHA1

c5656616f7095e6b19c995b2528c984234d8e3ed
SHA256

b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1
SHA512

e063b7b06d685c2244157ae397cd1d083860478cec387c852da40fc3b472e6b540649ea9399e3cdf867925c772fc0abdea43ff832b506c73b3d5487d6638c8b6
SSDEEP

12288:9aMaSzOKy2r7SPN/Mvy6URfiMCF9vEgAPdeaikpipP:MMaSSKy2/SPN/GBUIabdea4

Score

10^/10

snakekeylogger discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7888110857:AAH_lE30nomQfyzYUPPXbGWeGI9ffBUijsQ/sendMessage?chat_id=7222025033

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/408-31-0x0000000000740000-0x0000000000766000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\00.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\00.exe	Powershell.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
15	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4100 set thread context of 408	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	85

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4752	Powershell.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
884	408	WerFault.exe	85

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	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4752	Powershell.exe
4752	Powershell.exe
408	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4752	Powershell.exe
Token: SeDebugPrivilege	408	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4100 wrote to memory of 4752	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	83
PID 4100 wrote to memory of 4752	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	83
PID 4100 wrote to memory of 4752	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	83
PID 4100 wrote to memory of 408	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	85
PID 4100 wrote to memory of 408	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	85
PID 4100 wrote to memory of 408	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	85
PID 4100 wrote to memory of 408	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	85
PID 4100 wrote to memory of 408	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	85
PID 4100 wrote to memory of 408	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	85
PID 4100 wrote to memory of 408	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	85
PID 4100 wrote to memory of 408	4100	b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe	85

C:\Users\Admin\AppData\Local\Temp\b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe
"C:\Users\Admin\AppData\Local\Temp\b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4100
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\00.exe'
  2⤵
  - Drops startup file
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4752
- C:\Users\Admin\AppData\Local\Temp\b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe
  "C:\Users\Admin\AppData\Local\Temp\b37e686fd31a86e8ace7bac6a862b1388241527af590a168c294801cfbecd5b1.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:408
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 408 -s 1488
    3⤵
    - Program crash
    PID:884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 408 -ip 408
1⤵
PID:228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cstthbvm.i3m.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/408-42-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/408-32-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/408-31-0x0000000000740000-0x0000000000766000-memory.dmp

Filesize
152KB

Download
memory/408-30-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4100-7-0x0000000005DA0000-0x0000000005E3C000-memory.dmp

Filesize
624KB

Download
memory/4100-6-0x0000000005B80000-0x0000000005BD6000-memory.dmp

Filesize
344KB

Download
memory/4100-0-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/4100-1-0x0000000000F80000-0x0000000001050000-memory.dmp

Filesize
832KB

Download
memory/4100-41-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4100-40-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/4100-2-0x0000000005F80000-0x0000000006524000-memory.dmp

Filesize
5.6MB

Download
memory/4100-3-0x0000000005A70000-0x0000000005B02000-memory.dmp

Filesize
584KB

Download
memory/4100-5-0x0000000005A60000-0x0000000005A6A000-memory.dmp

Filesize
40KB

Download
memory/4100-4-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4100-28-0x0000000005D00000-0x0000000005D08000-memory.dmp

Filesize
32KB

Download
memory/4752-26-0x0000000006900000-0x000000000691E000-memory.dmp

Filesize
120KB

Download
memory/4752-11-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4752-24-0x00000000063D0000-0x0000000006436000-memory.dmp

Filesize
408KB

Download
memory/4752-27-0x0000000006E70000-0x0000000006EBC000-memory.dmp

Filesize
304KB

Download
memory/4752-23-0x0000000006360000-0x00000000063C6000-memory.dmp

Filesize
408KB

Download
memory/4752-18-0x0000000005B30000-0x0000000005B52000-memory.dmp

Filesize
136KB

Download
memory/4752-12-0x0000000005BC0000-0x00000000061E8000-memory.dmp

Filesize
6.2MB

Download
memory/4752-25-0x0000000006520000-0x0000000006874000-memory.dmp

Filesize
3.3MB

Download
memory/4752-33-0x0000000006DD0000-0x0000000006E66000-memory.dmp

Filesize
600KB

Download
memory/4752-34-0x0000000006D60000-0x0000000006D7A000-memory.dmp

Filesize
104KB

Download
memory/4752-35-0x0000000006EC0000-0x0000000006EE2000-memory.dmp

Filesize
136KB

Download
memory/4752-39-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4752-10-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4752-9-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/4752-8-0x0000000002FB0000-0x0000000002FE6000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing