snakekeylogger | 554fcafce29b66cc2dd33cff1e49f7d2c45f4e154c1f08bcb15d5aae3ad4ec1c

General

Target

Fatura_SUN2023000003827.exe
Size

448KB
MD5

04cc0750fc2e0ff6e81b4530e940f512
SHA1

82127102bb8725405d9416293fb2496c7c9d8b3e
SHA256

554fcafce29b66cc2dd33cff1e49f7d2c45f4e154c1f08bcb15d5aae3ad4ec1c
SHA512

b14cc7f0dbbc91ca295d80b471ea438854394189bafae9e4a8356674b0fa7cfe0254c0db7dd3181b95227b75d0be1cd63e54c8e4169d13b63379165622a7e07b
SSDEEP

6144:SYa6H/tW0PDPehrAG+7OELO94O7CQDmwv8bi/:SYd/ttLP0ri7OwO9zC4tUa

Score

10^/10

snakekeylogger keylogger persistence stealer

Malware Config

Signatures

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

Snake Keylogger payload 2 IoCs

resource	yara_rule
behavioral1/memory/1744-67-0x00000000002C0000-0x00000000002E6000-memory.dmp	family_snakekeylogger
behavioral1/memory/1744-68-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger

Executes dropped EXE 2 IoCs

pid	Process
1636	oeysiffsag.exe
1744	oeysiffsag.exe

Loads dropped DLL 3 IoCs

pid	Process
2016	Fatura_SUN2023000003827.exe
2016	Fatura_SUN2023000003827.exe
1636	oeysiffsag.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\lamgdwaikw = "C:\\Users\\Admin\\AppData\\Roaming\\amduvkfirfol\\asatdorulmddmb.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\oeysiffsag.exe\" C:\\Users\\Admin\\A"	oeysiffsag.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
3	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1636 set thread context of 1744	1636	oeysiffsag.exe	28

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1744	oeysiffsag.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1636	oeysiffsag.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1744	oeysiffsag.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 1636	2016	Fatura_SUN2023000003827.exe	27
PID 2016 wrote to memory of 1636	2016	Fatura_SUN2023000003827.exe	27
PID 2016 wrote to memory of 1636	2016	Fatura_SUN2023000003827.exe	27
PID 2016 wrote to memory of 1636	2016	Fatura_SUN2023000003827.exe	27
PID 1636 wrote to memory of 1744	1636	oeysiffsag.exe	28
PID 1636 wrote to memory of 1744	1636	oeysiffsag.exe	28
PID 1636 wrote to memory of 1744	1636	oeysiffsag.exe	28
PID 1636 wrote to memory of 1744	1636	oeysiffsag.exe	28
PID 1636 wrote to memory of 1744	1636	oeysiffsag.exe	28

C:\Users\Admin\AppData\Local\Temp\Fatura_SUN2023000003827.exe
"C:\Users\Admin\AppData\Local\Temp\Fatura_SUN2023000003827.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Local\Temp\oeysiffsag.exe
  "C:\Users\Admin\AppData\Local\Temp\oeysiffsag.exe" C:\Users\Admin\AppData\Local\Temp\zweecankhi.aur
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1636
- - C:\Users\Admin\AppData\Local\Temp\oeysiffsag.exe
    "C:\Users\Admin\AppData\Local\Temp\oeysiffsag.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1744

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\kcvgvxaauc.r

Filesize
225KB

MD5
216590d8e7476d6fe755390ab420f9c1

SHA1
166a1d87e8c0edad92125eaa044bc2f3bb354447

SHA256
674be3f8b419d8bcc1af68d7cd82e649eccd0889a663b1d362ae622f21fd50ee

SHA512
cddf38fac64b98cf873046cb2210d6773e25b568803c42f5ad35e926a697b494d556dfd151ae052e23dddf80efe1f5fffb0f44a50af377ddcf18ef1de2ab50be

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

Filesize
127KB

MD5
ccccc8741100aaf54c4e0ae3940b65bc

SHA1
1a92fa518ae6600bcb5934eda15f8522958e73f1

SHA256
01d659257e1a2a88f1fa4561d691ed7faf07ca0208f5030122aa3cce58c61951

SHA512
7ddf1f6e058378131074ee4b83b5182c1a1e9ca9166f4d0b6d7ba48282e1e936276884e0919c7881fa000b7e81ab028ba022f9cf111bd7ffcf0103ef1208edb0

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

Filesize
127KB

MD5
ccccc8741100aaf54c4e0ae3940b65bc

SHA1
1a92fa518ae6600bcb5934eda15f8522958e73f1

SHA256
01d659257e1a2a88f1fa4561d691ed7faf07ca0208f5030122aa3cce58c61951

SHA512
7ddf1f6e058378131074ee4b83b5182c1a1e9ca9166f4d0b6d7ba48282e1e936276884e0919c7881fa000b7e81ab028ba022f9cf111bd7ffcf0103ef1208edb0

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

Filesize
127KB

MD5
ccccc8741100aaf54c4e0ae3940b65bc

SHA1
1a92fa518ae6600bcb5934eda15f8522958e73f1

SHA256
01d659257e1a2a88f1fa4561d691ed7faf07ca0208f5030122aa3cce58c61951

SHA512
7ddf1f6e058378131074ee4b83b5182c1a1e9ca9166f4d0b6d7ba48282e1e936276884e0919c7881fa000b7e81ab028ba022f9cf111bd7ffcf0103ef1208edb0

Download Submit
C:\Users\Admin\AppData\Local\Temp\zweecankhi.aur

Filesize
7KB

MD5
0e71a4312067821413f56ab62591630b

SHA1
7024b58142984c1e4f4dabd95f9c0fd5514c0db0

SHA256
ada8fd09206e747ba3f12d117d9a352043dd7abcafb4d47c71e1ce5ab6b98d4d

SHA512
8e6ff9104ec46bcda8034183269eb22d95aebb17578fa9f1e794327790b995185f0fb7114475081d9a576e094ae0249c431afe537e222ba6f9aca3f795df3a28

Download Submit
\Users\Admin\AppData\Local\Temp\oeysiffsag.exe

Filesize
127KB

MD5
ccccc8741100aaf54c4e0ae3940b65bc

SHA1
1a92fa518ae6600bcb5934eda15f8522958e73f1

SHA256
01d659257e1a2a88f1fa4561d691ed7faf07ca0208f5030122aa3cce58c61951

SHA512
7ddf1f6e058378131074ee4b83b5182c1a1e9ca9166f4d0b6d7ba48282e1e936276884e0919c7881fa000b7e81ab028ba022f9cf111bd7ffcf0103ef1208edb0

Download Submit
\Users\Admin\AppData\Local\Temp\oeysiffsag.exe

Filesize
127KB

MD5
ccccc8741100aaf54c4e0ae3940b65bc

SHA1
1a92fa518ae6600bcb5934eda15f8522958e73f1

SHA256
01d659257e1a2a88f1fa4561d691ed7faf07ca0208f5030122aa3cce58c61951

SHA512
7ddf1f6e058378131074ee4b83b5182c1a1e9ca9166f4d0b6d7ba48282e1e936276884e0919c7881fa000b7e81ab028ba022f9cf111bd7ffcf0103ef1208edb0

Download Submit
\Users\Admin\AppData\Local\Temp\oeysiffsag.exe

Filesize
127KB

MD5
ccccc8741100aaf54c4e0ae3940b65bc

SHA1
1a92fa518ae6600bcb5934eda15f8522958e73f1

SHA256
01d659257e1a2a88f1fa4561d691ed7faf07ca0208f5030122aa3cce58c61951

SHA512
7ddf1f6e058378131074ee4b83b5182c1a1e9ca9166f4d0b6d7ba48282e1e936276884e0919c7881fa000b7e81ab028ba022f9cf111bd7ffcf0103ef1208edb0

Download Submit
memory/1744-67-0x00000000002C0000-0x00000000002E6000-memory.dmp

Filesize
152KB

Download
memory/1744-68-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2016-54-0x00000000761F1000-0x00000000761F3000-memory.dmp

Filesize
8KB

Download

Analysis

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