snakekeylogger | e51e7b073e5fa3832455c7e87ccd3bbc7dd1dd3c72cf0bb273f1e24adec6ce92

Analysis

max time kernel
91s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-12-2024 16:28

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General

Target

DYFRN_file.exe
Size

844KB
MD5

5e2725e6fc1948c0f8d7044bdbf5218a
SHA1

ab0f3415c6cd7f3ca2a1e935910a4801face7d99
SHA256

e51e7b073e5fa3832455c7e87ccd3bbc7dd1dd3c72cf0bb273f1e24adec6ce92
SHA512

dac35ed58a28d8df099a088a77ca8960e38d4e51a9149d68e96ed8f2bd9fdf0e449f7226fafc004c28e151370a356fe164493470262c1e0cfb87425cf1d2d731
SSDEEP

12288:mUnNezvoYK6g7B/7SDmX6a+xKCOmNOoqwBrMyU+Jiqa/M/kR:1IzLK6g7QSKzxLNOxwZMyUeBFa

Score

10^/10

snakekeylogger discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot7692220058:AAEny12fSzuKXI7iNJaESECu5UR80nmwLAQ/sendMessage?chat_id=7342994424

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/224-21-0x0000000000400000-0x0000000000426000-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
4940	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	DYFRN_file.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
19	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 380 set thread context of 224	380	DYFRN_file.exe	92

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
1896	224	WerFault.exe	92

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	DYFRN_file.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	vbc.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
4004	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
224	vbc.exe
4940	powershell.exe
4940	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4940	powershell.exe
Token: SeDebugPrivilege	224	vbc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 380 wrote to memory of 4940	380	DYFRN_file.exe	88
PID 380 wrote to memory of 4940	380	DYFRN_file.exe	88
PID 380 wrote to memory of 4940	380	DYFRN_file.exe	88
PID 380 wrote to memory of 4004	380	DYFRN_file.exe	90
PID 380 wrote to memory of 4004	380	DYFRN_file.exe	90
PID 380 wrote to memory of 4004	380	DYFRN_file.exe	90
PID 380 wrote to memory of 224	380	DYFRN_file.exe	92
PID 380 wrote to memory of 224	380	DYFRN_file.exe	92
PID 380 wrote to memory of 224	380	DYFRN_file.exe	92
PID 380 wrote to memory of 224	380	DYFRN_file.exe	92
PID 380 wrote to memory of 224	380	DYFRN_file.exe	92
PID 380 wrote to memory of 224	380	DYFRN_file.exe	92
PID 380 wrote to memory of 224	380	DYFRN_file.exe	92
PID 380 wrote to memory of 224	380	DYFRN_file.exe	92

C:\Users\Admin\AppData\Local\Temp\DYFRN_file.exe
"C:\Users\Admin\AppData\Local\Temp\DYFRN_file.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:380
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sEVJotUOhCXWC.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4940
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sEVJotUOhCXWC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAC98.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4004
- 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
  PID:224
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 1444
    3⤵
    - Program crash
    PID:1896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 224 -ip 224
1⤵
PID:2184

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

Query Registry

T1012

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\__PSScriptPolicyTest_jzyjtxxq.tx5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAC98.tmp

Filesize
1KB

MD5
4df26bab7e7addc079cadee9750d57c1

SHA1
75db32245b3502399447435e50212e489cf9ac31

SHA256
e63e6b8b494e9ba2c94de916eaca0242ff6abd6fc7174f429785f42a761f3940

SHA512
b0b3728d7760e1c6774b978d63974bdc1c5f29033b326d40b6f257ecf02943c1634ac41684a97ea07d9c3140a0b1a98d9070d0433d66ee54bee152ba8ab32ddf

Download Submit
memory/224-65-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/224-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/224-23-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/380-4-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/380-6-0x0000000005940000-0x000000000595E000-memory.dmp

Filesize
120KB

Download
memory/380-7-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/380-8-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/380-9-0x0000000008390000-0x00000000083FC000-memory.dmp

Filesize
432KB

Download
memory/380-10-0x000000000AB50000-0x000000000ABEC000-memory.dmp

Filesize
624KB

Download
memory/380-5-0x00000000052B0000-0x00000000052BA000-memory.dmp

Filesize
40KB

Download
memory/380-3-0x00000000052D0000-0x0000000005362000-memory.dmp

Filesize
584KB

Download
memory/380-2-0x0000000005980000-0x0000000005F24000-memory.dmp

Filesize
5.6MB

Download
memory/380-0-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/380-30-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/380-1-0x00000000007D0000-0x00000000008A6000-memory.dmp

Filesize
856KB

Download
memory/4940-32-0x0000000005D70000-0x0000000005DD6000-memory.dmp

Filesize
408KB

Download
memory/4940-52-0x0000000007600000-0x00000000076A3000-memory.dmp

Filesize
652KB

Download
memory/4940-19-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4940-18-0x0000000005500000-0x0000000005B28000-memory.dmp

Filesize
6.2MB

Download
memory/4940-31-0x0000000005D00000-0x0000000005D66000-memory.dmp

Filesize
408KB

Download
memory/4940-29-0x0000000005C60000-0x0000000005C82000-memory.dmp

Filesize
136KB

Download
memory/4940-16-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4940-37-0x0000000005EE0000-0x0000000006234000-memory.dmp

Filesize
3.3MB

Download
memory/4940-38-0x00000000063C0000-0x00000000063DE000-memory.dmp

Filesize
120KB

Download
memory/4940-39-0x0000000006470000-0x00000000064BC000-memory.dmp

Filesize
304KB

Download
memory/4940-40-0x00000000069B0000-0x00000000069E2000-memory.dmp

Filesize
200KB

Download
memory/4940-41-0x0000000071510000-0x000000007155C000-memory.dmp

Filesize
304KB

Download
memory/4940-51-0x0000000006980000-0x000000000699E000-memory.dmp

Filesize
120KB

Download
memory/4940-20-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4940-53-0x0000000007D30000-0x00000000083AA000-memory.dmp

Filesize
6.5MB

Download
memory/4940-54-0x00000000076F0000-0x000000000770A000-memory.dmp

Filesize
104KB

Download
memory/4940-55-0x0000000007760000-0x000000000776A000-memory.dmp

Filesize
40KB

Download
memory/4940-56-0x0000000007970000-0x0000000007A06000-memory.dmp

Filesize
600KB

Download
memory/4940-57-0x00000000078F0000-0x0000000007901000-memory.dmp

Filesize
68KB

Download
memory/4940-58-0x0000000007920000-0x000000000792E000-memory.dmp

Filesize
56KB

Download
memory/4940-59-0x0000000007930000-0x0000000007944000-memory.dmp

Filesize
80KB

Download
memory/4940-60-0x0000000007A30000-0x0000000007A4A000-memory.dmp

Filesize
104KB

Download
memory/4940-61-0x0000000007A10000-0x0000000007A18000-memory.dmp

Filesize
32KB

Download
memory/4940-64-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4940-15-0x0000000002AB0000-0x0000000002AE6000-memory.dmp

Filesize
216KB

Download