snakekeylogger | ee66a185008549b9ca0c687a78aa6a69e4770dd12cab9dc63d5346c1f570904b

Resubmissions

12/03/2025, 21:32

250312-1dmynatxey 10

11/03/2025, 16:10

250311-tmgdxaxnx4 10

06/03/2025, 02:30

250306-cze8yav1az 10

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2025, 02:30

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General

Target

5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe
Size

659KB
MD5

183ebe37f8f5b5b3e324577327363c3f
SHA1

8ae40a52e750efa0f8c7014583770f9ff2343291
SHA256

5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb
SHA512

0b2600468a1977e14f592ca5ddda8ec5c0ab8bcab15a3cce9107360e3fdc95b00f55f424ba42ab9ba6624586e5e9f27d00270adf12e5f651ef5c46030b186034
SSDEEP

12288:X6jPyvD3aKx7bqyLZY7NsNAVSW/4zwHJeJ7zzwHJe:6sK4/qyLZoQAVSW/uwpeJDwpe

Score

10^/10

snakekeylogger discovery keylogger persistence stealer

Malware Config

Signatures

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

Snake Keylogger payload 6 IoCs

resource	yara_rule
behavioral18/memory/2604-11-0x0000000000400000-0x0000000000436000-memory.dmp	family_snakekeylogger
behavioral18/memory/2604-9-0x0000000000400000-0x0000000000436000-memory.dmp	family_snakekeylogger
behavioral18/memory/2604-13-0x0000000000400000-0x0000000000436000-memory.dmp	family_snakekeylogger
behavioral18/files/0x0007000000023d49-28.dat	family_snakekeylogger
behavioral18/memory/4532-35-0x0000000000440000-0x0000000000466000-memory.dmp	family_snakekeylogger
behavioral18/memory/4584-36-0x0000000001690000-0x00000000016A0000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Checks computer location settings 2 TTPs 3 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-1-5-21-3181990009-820930284-137514597-1000\Control Panel\International\Geo\Nation	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\Control Panel\International\Geo\Nation	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\Control Panel\International\Geo\Nation	sergf.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsUpdater.lnk	FB_1A59.tmp.exe

Executes dropped EXE 4 IoCs

pid	Process
4584	FB_1A59.tmp.exe
4532	FB_1B25.tmp.exe
2728	sergf.exe
4876	sergf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsUpdater = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\FB_1A59.tmp.exe\" .."	FB_1A59.tmp.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
65	checkip.dyndns.org
73	freegeoip.app
74	freegeoip.app

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2980 set thread context of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2728 set thread context of 4876	2728	sergf.exe	117

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
4052	4532	WerFault.exe	101

System Location Discovery: System Language Discovery 1 TTPs 10 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sergf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FB_1B25.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3600	schtasks.exe
1644	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4532	FB_1B25.tmp.exe
4532	FB_1B25.tmp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe
Token: SeDebugPrivilege	4532	FB_1B25.tmp.exe
Token: SeDebugPrivilege	2728	sergf.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2980 wrote to memory of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2980 wrote to memory of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2980 wrote to memory of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2980 wrote to memory of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2980 wrote to memory of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2980 wrote to memory of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2980 wrote to memory of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2980 wrote to memory of 2604	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	97
PID 2604 wrote to memory of 4584	2604	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	99
PID 2604 wrote to memory of 4584	2604	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	99
PID 2980 wrote to memory of 812	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	98
PID 2980 wrote to memory of 812	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	98
PID 2980 wrote to memory of 812	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	98
PID 2980 wrote to memory of 3864	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	100
PID 2980 wrote to memory of 3864	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	100
PID 2980 wrote to memory of 3864	2980	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	100
PID 2604 wrote to memory of 4532	2604	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	101
PID 2604 wrote to memory of 4532	2604	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	101
PID 2604 wrote to memory of 4532	2604	5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe	101
PID 812 wrote to memory of 3600	812	cmd.exe	104
PID 812 wrote to memory of 3600	812	cmd.exe	104
PID 812 wrote to memory of 3600	812	cmd.exe	104
PID 2728 wrote to memory of 4876	2728	sergf.exe	117
PID 2728 wrote to memory of 4876	2728	sergf.exe	117
PID 2728 wrote to memory of 4876	2728	sergf.exe	117
PID 2728 wrote to memory of 4876	2728	sergf.exe	117
PID 2728 wrote to memory of 4876	2728	sergf.exe	117
PID 2728 wrote to memory of 4876	2728	sergf.exe	117
PID 2728 wrote to memory of 4876	2728	sergf.exe	117
PID 2728 wrote to memory of 4876	2728	sergf.exe	117
PID 2728 wrote to memory of 4876	2728	sergf.exe	117
PID 2728 wrote to memory of 3764	2728	sergf.exe	118
PID 2728 wrote to memory of 3764	2728	sergf.exe	118
PID 2728 wrote to memory of 3764	2728	sergf.exe	118
PID 2728 wrote to memory of 4568	2728	sergf.exe	119
PID 2728 wrote to memory of 4568	2728	sergf.exe	119
PID 2728 wrote to memory of 4568	2728	sergf.exe	119
PID 3764 wrote to memory of 1644	3764	cmd.exe	122
PID 3764 wrote to memory of 1644	3764	cmd.exe	122
PID 3764 wrote to memory of 1644	3764	cmd.exe	122

C:\Users\Admin\AppData\Local\Temp\5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe
"C:\Users\Admin\AppData\Local\Temp\5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Users\Admin\AppData\Local\Temp\5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe
  "C:\Users\Admin\AppData\Local\Temp\5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2604
- - C:\Users\Admin\AppData\Local\Temp\FB_1A59.tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\FB_1A59.tmp.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    PID:4584
- - C:\Users\Admin\AppData\Local\Temp\FB_1B25.tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\FB_1B25.tmp.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4532
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1808
      4⤵
      Program crash
      PID:4052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\sergf\sergf.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:812
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\sergf\sergf.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3600
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb.exe" "C:\Users\Admin\AppData\Roaming\sergf\sergf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4532 -ip 4532
1⤵
PID:4320

C:\Users\Admin\AppData\Roaming\sergf\sergf.exe
C:\Users\Admin\AppData\Roaming\sergf\sergf.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Users\Admin\AppData\Roaming\sergf\sergf.exe
  "C:\Users\Admin\AppData\Roaming\sergf\sergf.exe"
  2⤵
  - Executes dropped EXE
  PID:4876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\sergf\sergf.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3764
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\sergf\sergf.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Roaming\sergf\sergf.exe" "C:\Users\Admin\AppData\Roaming\sergf\sergf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\FB_1A59.tmp.exe

Filesize
69KB

MD5
0052d6c22b3c528c011b2e093155f8e0

SHA1
e176827903acb3f96b4114b036a0cda8646331d9

SHA256
eef635d1c6f58320072d6b4b762bee15d559978f2d150726a0fef3f83627871f

SHA512
b6f1f20b43b2af9633d16532be2d05a1ece10d99a83481913b254a5301e0c7934a8035fc0ba752a5c863aea1828665ad99e69c8ccdaa086544f228beb72db50a

Download Submit
C:\Users\Admin\AppData\Local\Temp\FB_1B25.tmp.exe

Filesize
126KB

MD5
6871e4e3ce2b458881aa007560ef80b5

SHA1
e2a3fb4dc3d184693aed6b3c2f2f3065fdb0ff4e

SHA256
39e83410a9e1b504499680e98c3a4c5b7f272bf74e72528c8796f97ef6868c6e

SHA512
8bf95a29c79123bfd88f3ebbf1abd5095ce0bafac9cf9f97b619f4a1ab3e6df2574b9d24e9157b9da0d64240fa63818467ae31a0f2e139e411330a718371c7ef

Download Submit
C:\Users\Admin\AppData\Roaming\sergf\sergf.exe

Filesize
659KB

MD5
183ebe37f8f5b5b3e324577327363c3f

SHA1
8ae40a52e750efa0f8c7014583770f9ff2343291

SHA256
5f278f8bdee6e51c769320f10506c28a4e84a56ee3ff44f63eec9a189236b1cb

SHA512
0b2600468a1977e14f592ca5ddda8ec5c0ab8bcab15a3cce9107360e3fdc95b00f55f424ba42ab9ba6624586e5e9f27d00270adf12e5f651ef5c46030b186034

Download Submit
memory/2604-11-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2604-13-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2604-9-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2728-50-0x00000000004A0000-0x000000000054A000-memory.dmp

Filesize
680KB

Download
memory/2980-6-0x00000000052C0000-0x00000000052CA000-memory.dmp

Filesize
40KB

Download
memory/2980-8-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2980-7-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/2980-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/2980-5-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2980-4-0x00000000054B0000-0x0000000005516000-memory.dmp

Filesize
408KB

Download
memory/2980-3-0x0000000005410000-0x00000000054A2000-memory.dmp

Filesize
584KB

Download
memory/2980-1-0x0000000000670000-0x000000000071A000-memory.dmp

Filesize
680KB

Download
memory/2980-2-0x00000000059C0000-0x0000000005F64000-memory.dmp

Filesize
5.6MB

Download
memory/4532-37-0x0000000004D80000-0x0000000004E1C000-memory.dmp

Filesize
624KB

Download
memory/4532-35-0x0000000000440000-0x0000000000466000-memory.dmp

Filesize
152KB

Download
memory/4584-40-0x000000001C220000-0x000000001C6EE000-memory.dmp

Filesize
4.8MB

Download
memory/4584-41-0x000000001C790000-0x000000001C82C000-memory.dmp

Filesize
624KB

Download
memory/4584-42-0x000000001C9E0000-0x000000001CA86000-memory.dmp

Filesize
664KB

Download
memory/4584-43-0x0000000001670000-0x0000000001678000-memory.dmp

Filesize
32KB

Download
memory/4584-47-0x0000000001690000-0x00000000016A0000-memory.dmp

Filesize
64KB

Download
memory/4584-36-0x0000000001690000-0x00000000016A0000-memory.dmp

Filesize
64KB

Download