snakekeylogger | 695e823587b2441ca95f76514ec7745ff78bf8dc5b3e153ca63e7d7a11d1a4f5

General

Target

PO_28135_____.exe
Size

6KB
MD5

d434ad5325c7641a7a1cde635dfffc90
SHA1

11614131f5859bf0aa5a29ce716f118fab7c0dc9
SHA256

695e823587b2441ca95f76514ec7745ff78bf8dc5b3e153ca63e7d7a11d1a4f5
SHA512

9391bae6d24306a081bcd396614f19a88c4a5614eaeff817567bb7dd5656388ba26e9dc9ad106058fdde8d40b6a9c0af6e6915ca3c30deae68fc9b726aff2bda
SSDEEP

96:iE89uwlvKFhAXft4WvH7q6+1UknljiBm/4Nke4LH3GnUODL:iHXftbvbq6CljiBm/4GpHv0

Score

10^/10

snakekeylogger collection keylogger persistence spyware 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
behavioral1/memory/1084-70-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1084-72-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1084-73-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1084-74-0x00000000004208BE-mapping.dmp	family_snakekeylogger
behavioral1/memory/1084-76-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1084-78-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_28135_____.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_28135_____.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_28135_____.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\Rnfgxs = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dezfbj\\Rnfgxs.exe\""	PO_28135_____.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
6	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1944 set thread context of 1084	1944	PO_28135_____.exe	32

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 4 IoCs

pid	Process
628	powershell.exe
812	powershell.exe
1084	PO_28135_____.exe
1084	PO_28135_____.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	628	powershell.exe
Token: SeDebugPrivilege	1944	PO_28135_____.exe
Token: SeDebugPrivilege	812	powershell.exe
Token: SeDebugPrivilege	1084	PO_28135_____.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 628	1944	PO_28135_____.exe	28
PID 1944 wrote to memory of 628	1944	PO_28135_____.exe	28
PID 1944 wrote to memory of 628	1944	PO_28135_____.exe	28
PID 1944 wrote to memory of 628	1944	PO_28135_____.exe	28
PID 1944 wrote to memory of 812	1944	PO_28135_____.exe	30
PID 1944 wrote to memory of 812	1944	PO_28135_____.exe	30
PID 1944 wrote to memory of 812	1944	PO_28135_____.exe	30
PID 1944 wrote to memory of 812	1944	PO_28135_____.exe	30
PID 1944 wrote to memory of 1084	1944	PO_28135_____.exe	32
PID 1944 wrote to memory of 1084	1944	PO_28135_____.exe	32
PID 1944 wrote to memory of 1084	1944	PO_28135_____.exe	32
PID 1944 wrote to memory of 1084	1944	PO_28135_____.exe	32
PID 1944 wrote to memory of 1084	1944	PO_28135_____.exe	32
PID 1944 wrote to memory of 1084	1944	PO_28135_____.exe	32
PID 1944 wrote to memory of 1084	1944	PO_28135_____.exe	32
PID 1944 wrote to memory of 1084	1944	PO_28135_____.exe	32
PID 1944 wrote to memory of 1084	1944	PO_28135_____.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_28135_____.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_28135_____.exe

C:\Users\Admin\AppData\Local\Temp\PO_28135_____.exe
"C:\Users\Admin\AppData\Local\Temp\PO_28135_____.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" [System.Security.Principal.WindowsIdentity]::GetCurrent().Name
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:628
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAANQA2AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:812
- C:\Users\Admin\AppData\Local\Temp\PO_28135_____.exe
  C:\Users\Admin\AppData\Local\Temp\PO_28135_____.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1084

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

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
f37250ab1d1874588e28fa1df1557ff3

SHA1
8d6284a74736a9b3142cfd7cb969741d903361b9

SHA256
d2b3c7ac9fcbc62701d29703123624511f9193eb2f9fe956a8e3c0e6a347e142

SHA512
ad8ae692d81fc5ce8ca705cdd22d381d0b4c70db73529b418b3a338502e35679619fdd2065bfa5804ac4612bc2205ebe225eef8d4175c7704c90bb8320839a1e

Download Submit
memory/628-59-0x00000000703E0000-0x000000007098B000-memory.dmp

Filesize
5.7MB

Download
memory/628-58-0x00000000703E0000-0x000000007098B000-memory.dmp

Filesize
5.7MB

Download
memory/812-64-0x000000006E0E0000-0x000000006E68B000-memory.dmp

Filesize
5.7MB

Download
memory/812-65-0x000000006E0E0000-0x000000006E68B000-memory.dmp

Filesize
5.7MB

Download
memory/812-66-0x000000006E0E0000-0x000000006E68B000-memory.dmp

Filesize
5.7MB

Download
memory/1084-72-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1084-67-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1084-68-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1084-70-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1084-73-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1084-76-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1084-78-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1944-54-0x0000000000EF0000-0x0000000000EF8000-memory.dmp

Filesize
32KB

Download
memory/1944-55-0x0000000076031000-0x0000000076033000-memory.dmp

Filesize
8KB

Download
memory/1944-60-0x0000000008200000-0x0000000008406000-memory.dmp

Filesize
2.0MB

Download

Analysis

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