snakekeylogger | 5975fc05d280bfb5071a38f28a7925f709f5323f609256a138d700afdd793880

General

Target

Ziraat Bankasi Swift Mesaji..exe
Size

856KB
MD5

1de4377dc2bbb7a011de6b17ce656557
SHA1

e68a6734dd98c3977e00458e65e32c8106f4a7d0
SHA256

5975fc05d280bfb5071a38f28a7925f709f5323f609256a138d700afdd793880
SHA512

70039c63732eb836de7e156958523159d00b57ad2b1498cf3c716488b932a748c433794cbfda93bbae35c63b8eab0f70bd1ed0f02202c18e1e9ec16063636a76
SSDEEP

12288:QKzJrXQ9TZwe+jcQsFR0bdvFNFMotYWG62DyqHo4SN1lsQYu6X73CwkR:Xzo+jdsF6bdfFMgwDyQo48HsbTc

Score

10^/10

snakekeylogger discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7692220058:AAHVndQO9RuaWbiX3k3pjx15TMCoeBS0WKU/sendMessage?chat_id=7342994424

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2620-18-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2620-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2620-27-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2620-24-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2620-20-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3012	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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
2	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2640	2620	WerFault.exe	35

System Location Discovery: System Language Discovery 1 TTPs 4 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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ziraat Bankasi Swift Mesaji..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2620	vbc.exe
3012	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2620	vbc.exe
Token: SeDebugPrivilege	3012	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 3012	2760	Ziraat Bankasi Swift Mesaji..exe	31
PID 2760 wrote to memory of 3012	2760	Ziraat Bankasi Swift Mesaji..exe	31
PID 2760 wrote to memory of 3012	2760	Ziraat Bankasi Swift Mesaji..exe	31
PID 2760 wrote to memory of 3012	2760	Ziraat Bankasi Swift Mesaji..exe	31
PID 2760 wrote to memory of 2628	2760	Ziraat Bankasi Swift Mesaji..exe	32
PID 2760 wrote to memory of 2628	2760	Ziraat Bankasi Swift Mesaji..exe	32
PID 2760 wrote to memory of 2628	2760	Ziraat Bankasi Swift Mesaji..exe	32
PID 2760 wrote to memory of 2628	2760	Ziraat Bankasi Swift Mesaji..exe	32
PID 2760 wrote to memory of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35
PID 2760 wrote to memory of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35
PID 2760 wrote to memory of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35
PID 2760 wrote to memory of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35
PID 2760 wrote to memory of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35
PID 2760 wrote to memory of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35
PID 2760 wrote to memory of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35
PID 2760 wrote to memory of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35
PID 2760 wrote to memory of 2620	2760	Ziraat Bankasi Swift Mesaji..exe	35
PID 2620 wrote to memory of 2640	2620	vbc.exe	36
PID 2620 wrote to memory of 2640	2620	vbc.exe	36
PID 2620 wrote to memory of 2640	2620	vbc.exe	36
PID 2620 wrote to memory of 2640	2620	vbc.exe	36

C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji..exe
"C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji..exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UUgufrsCQz.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3012
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UUgufrsCQz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3CD2.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2628
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2620
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2620 -s 968
    3⤵
    - Program crash
    PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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\tmp3CD2.tmp

Filesize
1KB

MD5
e870df0b18b6894a8efb1b673036c47f

SHA1
608550b87666eb32c3e03cd7744abf62479bb75a

SHA256
b11f5aa23f7f9233cbb489b2f3cc02eb7310034faa83507bfaa49511f280f189

SHA512
c82c2ad5f4b13784442f248ebaded5b3a910cb8687c45173a847cd6dbc7bbeeaf8160baff1c640dfdb67bfb1e9f3fe69723708d575b11757e4c04bc63ab1721a

Download Submit
memory/2620-24-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2620-27-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2620-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2620-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2620-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2620-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2620-22-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-18-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-1-0x0000000000940000-0x0000000000A18000-memory.dmp

Filesize
864KB

Download
memory/2760-5-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2760-26-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2760-0-0x000000007490E000-0x000000007490F000-memory.dmp

Filesize
4KB

Download
memory/2760-2-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2760-6-0x00000000007D0000-0x0000000000838000-memory.dmp

Filesize
416KB

Download
memory/2760-4-0x000000007490E000-0x000000007490F000-memory.dmp

Filesize
4KB

Download
memory/2760-3-0x00000000004C0000-0x00000000004DC000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads