snakekeylogger | e7e5b2d142ef7cf284f13c79979200a577e782ab42b1450367fa516a5fe0e74f

General

Target

Balance payment.exe
Size

283KB
MD5

338b022ed773533c2df2c0d940791682
SHA1

8e08acf19970e369a6755c0b8a0789b5019b191d
SHA256

e7e5b2d142ef7cf284f13c79979200a577e782ab42b1450367fa516a5fe0e74f
SHA512

56614594dc6b2053332e5666c6d7986ee682d79482f9dd3d32bb8f4b691d18b919b2ad77b9b28513fca9bba952f74155788959c30d52b67a828960fb47598099
SSDEEP

6144:vYa6cmProlCbisHQRkvLkFPOplpq1mELmrGmPQ2psy1:vY5eCbTQQL8P8lMmbrVIc1

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 4 IoCs

resource	yara_rule
behavioral2/memory/2908-142-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger
behavioral2/memory/2908-144-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger
behavioral2/memory/2908-146-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger
behavioral2/memory/2908-148-0x0000000000400000-0x0000000000437000-memory.dmp	family_snakekeylogger

Executes dropped EXE 2 IoCs

pid	Process
4120	ubifldxz.exe
2908	ubifldxz.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ubifldxz.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ubifldxz.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ubifldxz.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
15	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4120 set thread context of 2908	4120	ubifldxz.exe	86

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 2 IoCs

pid	Process
2908	ubifldxz.exe
2908	ubifldxz.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4120	ubifldxz.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2908	ubifldxz.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 4120	2080	Balance payment.exe	85
PID 2080 wrote to memory of 4120	2080	Balance payment.exe	85
PID 2080 wrote to memory of 4120	2080	Balance payment.exe	85
PID 4120 wrote to memory of 2908	4120	ubifldxz.exe	86
PID 4120 wrote to memory of 2908	4120	ubifldxz.exe	86
PID 4120 wrote to memory of 2908	4120	ubifldxz.exe	86
PID 4120 wrote to memory of 2908	4120	ubifldxz.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ubifldxz.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ubifldxz.exe

C:\Users\Admin\AppData\Local\Temp\Balance payment.exe
"C:\Users\Admin\AppData\Local\Temp\Balance payment.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Users\Admin\AppData\Local\Temp\ubifldxz.exe
  "C:\Users\Admin\AppData\Local\Temp\ubifldxz.exe" C:\Users\Admin\AppData\Local\Temp\dtkehugnw.b
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4120
- - C:\Users\Admin\AppData\Local\Temp\ubifldxz.exe
    "C:\Users\Admin\AppData\Local\Temp\ubifldxz.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2908

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\arkrdxnowuu.pi

Filesize
225KB

MD5
4c4c2bb8ac32820ea7f764a39930b691

SHA1
9d32ccebec4d20f05b5174a8df8e28522a45cac9

SHA256
2b4ded7f1c4dc807606fca8fdf6598c28dd1ca1595d814aaa68a72b019dc576f

SHA512
4c931c3777015bf0d230e815a0271aae7891942b5f39a5b494226139737cfad1acb5259b93bd81da6f2aae844e7de7ca107043a60bbecadd9d694abde0a7fa19

Download Submit
C:\Users\Admin\AppData\Local\Temp\dtkehugnw.b

Filesize
5KB

MD5
da52689529fb6d747ebf9416e58e347e

SHA1
37bb4e15e2a904806207a9e9b2e68e2e618b8afb

SHA256
69649f06f82a110ab970372928dbfa0eebdaad3801bfc4db0770c1f066a7001e

SHA512
ac398822050490c33a93c92b93a44eeb7020b96c7cb8b25f7008817a32393987d61b11dd5c24ec6075a117435d9c443ba0394215883d2f0fc6f0f846d20fca0e

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

Filesize
138KB

MD5
d5171ff863900d72508088d68910d5f4

SHA1
3bdb12110f88d56d47aff74b460323691e99bf4f

SHA256
2ea56e830c3deb56564c023822a5e0d1f771983361fb4fe00753ac64501743c8

SHA512
6016f09eb32b4e0fc4fa97dbf28be78b829ff8026385146a49f8b6b8817152b9e919fa535fe4ce8b70b09284db8ff1fc05d28b8fc30886335820265ae12492de

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

Filesize
138KB

MD5
d5171ff863900d72508088d68910d5f4

SHA1
3bdb12110f88d56d47aff74b460323691e99bf4f

SHA256
2ea56e830c3deb56564c023822a5e0d1f771983361fb4fe00753ac64501743c8

SHA512
6016f09eb32b4e0fc4fa97dbf28be78b829ff8026385146a49f8b6b8817152b9e919fa535fe4ce8b70b09284db8ff1fc05d28b8fc30886335820265ae12492de

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

Filesize
138KB

MD5
d5171ff863900d72508088d68910d5f4

SHA1
3bdb12110f88d56d47aff74b460323691e99bf4f

SHA256
2ea56e830c3deb56564c023822a5e0d1f771983361fb4fe00753ac64501743c8

SHA512
6016f09eb32b4e0fc4fa97dbf28be78b829ff8026385146a49f8b6b8817152b9e919fa535fe4ce8b70b09284db8ff1fc05d28b8fc30886335820265ae12492de

Download Submit
memory/2908-148-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2908-156-0x0000000005E30000-0x0000000005E3A000-memory.dmp

Filesize
40KB

Download
memory/2908-142-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2908-146-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2908-147-0x0000000004950000-0x0000000004EF4000-memory.dmp

Filesize
5.6MB

Download
memory/2908-161-0x0000000004940000-0x0000000004950000-memory.dmp

Filesize
64KB

Download
memory/2908-149-0x0000000004940000-0x0000000004950000-memory.dmp

Filesize
64KB

Download
memory/2908-150-0x0000000004F40000-0x0000000004FDC000-memory.dmp

Filesize
624KB

Download
memory/2908-152-0x0000000004940000-0x0000000004950000-memory.dmp

Filesize
64KB

Download
memory/2908-151-0x0000000004940000-0x0000000004950000-memory.dmp

Filesize
64KB

Download
memory/2908-153-0x0000000004940000-0x0000000004950000-memory.dmp

Filesize
64KB

Download
memory/2908-154-0x0000000005B50000-0x0000000005D12000-memory.dmp

Filesize
1.8MB

Download
memory/2908-155-0x0000000005D20000-0x0000000005DB2000-memory.dmp

Filesize
584KB

Download
memory/2908-144-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2908-158-0x0000000004940000-0x0000000004950000-memory.dmp

Filesize
64KB

Download
memory/2908-159-0x0000000004940000-0x0000000004950000-memory.dmp

Filesize
64KB

Download
memory/2908-160-0x0000000004940000-0x0000000004950000-memory.dmp

Filesize
64KB

Download
memory/4120-140-0x00000000005B0000-0x00000000005B2000-memory.dmp

Filesize
8KB

Download

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