snakekeylogger | fa8d09a3d211aaefb69b1438a2b3bb45cb30b84162a02d7d291d8cbc9b56b508

General

Target
mpclient.dll
Size 2.6MB
Sample250810-m4bresyvhw
SHA256 fa8d09a3d211aaefb69b1438a2b3bb45cb30b84162a02d7d291d8cbc9b56b508
MD5 6dc0abefffd9a3e27cb7f8ebedc2fd2c
SHA1 22d28687f52612ec57789383ac3abd74a6f1a7a5
SHA512 9392f18293941073b65b87517ec31b36a7a3668d62d9ab764b217d9651bc8972b5d640c1c42704034e384cb325fd0d9266a96163bec02c48b4db17e3c2472e88
SSDEEP 49152:xIOJpIhAyfFoUMtrCub0WYxqn/XaRBRui4P11w9vCAxFxQY8Flj1sHB1e7:xdEytJ14TxjQYbHi7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

snakekeylogger collection discovery keylogger persistence spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol
smtp
Host
fgiltd.com.pk
Port
587
Username
[email protected]
Password
Fg!L021D$
Email to
[email protected]

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/1896-42-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3625340254-1625357543-1797847221-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regasm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3625340254-1625357543-1797847221-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regasm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3625340254-1625357543-1797847221-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regasm.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-1-5-21-3625340254-1625357543-1797847221-1000\Software\Microsoft\Windows\CurrentVersion\Run\rundll32.exe = "cmd.exe /C start \"\" /D \"C:\\Users\\Admin\\NotNullAttributeTaskAsyncEnumerableExtensionsM21\" \"C:\\Users\\Admin\\NotNullAttributeTaskAsyncEnumerableExtensionsM21\\rundll32.exe\""	rundll32.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
1	checkip.dyndns.org
1	reallyfreegeoip.org
3	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5636 set thread context of 1896	5636	rundll32.exe	79

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 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	regasm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1896	regasm.exe
1896	regasm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5636	rundll32.exe
Token: SeDebugPrivilege	1896	regasm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5636 wrote to memory of 1896	5636	rundll32.exe	79
PID 5636 wrote to memory of 1896	5636	rundll32.exe	79
PID 5636 wrote to memory of 1896	5636	rundll32.exe	79
PID 5636 wrote to memory of 1896	5636	rundll32.exe	79
PID 5636 wrote to memory of 1896	5636	rundll32.exe	79
PID 5636 wrote to memory of 1896	5636	rundll32.exe	79
PID 5636 wrote to memory of 1896	5636	rundll32.exe	79
PID 5636 wrote to memory of 1896	5636	rundll32.exe	79
PID 2004 wrote to memory of 4092	2004	cmd.exe	81
PID 2004 wrote to memory of 4092	2004	cmd.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3625340254-1625357543-1797847221-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regasm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3625340254-1625357543-1797847221-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regasm.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\mpclient.dll,#1
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5636
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1896

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cmd.exe /C start "" /D "C:\Users\Admin\NotNullAttributeTaskAsyncEnumerableExtensionsM21" "C:\Users\Admin\NotNullAttributeTaskAsyncEnumerableExtensionsM21\rundll32.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\system32\cmd.exe
  cmd.exe /C start "" /D "C:\Users\Admin\NotNullAttributeTaskAsyncEnumerableExtensionsM21" "C:\Users\Admin\NotNullAttributeTaskAsyncEnumerableExtensionsM21\rundll32.exe"
  2⤵
  PID:4092

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

wctE5D7.tmp

Path C:\Users\Admin\NotNullAttributeTaskAsyncEnumerableExtensionsM21\wctE5D7.tmp
Size 63KB
SHA256 543796a1b343b4ebc0285d89cb8eb70667ac7b513da37495e38003704e9d88d7
MD5 e516a60bc980095e8d156b1a99ab5eee
SHA1 238e243ffc12d4e012fd020c9822703109b987f6
SHA512 9b51e99ba20e9da56d1acc24a1cf9f9c9dbdeb742bec034e0ff2bc179a60f4aff249f40344f9ddd43229dcdefa1041940f65afb336d46c175ffeff725c638d58
SSDEEP 384:poaSLGTSy3S0XuMU9mCzHS7vpvpJGV6Hu/i49Pji7iJI5TZCP56vS1xDR+dBUFvT:WryF7U9mCzHS7vu/xV2iP56vcDR+P0T
MD5 SHA1 SHA512 SSDEEP

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memory/1896-42-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/1896-43-0x00000000058E0000-0x0000000005E86000-memory.dmp

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memory/1896-44-0x00000000053D0000-0x000000000546C000-memory.dmp

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memory/1896-45-0x0000000005640000-0x0000000005650000-memory.dmp

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memory/1896-46-0x0000000006740000-0x0000000006790000-memory.dmp

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memory/1896-47-0x0000000006960000-0x0000000006B22000-memory.dmp

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memory/1896-48-0x0000000006830000-0x00000000068C2000-memory.dmp

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memory/1896-49-0x00000000067B0000-0x00000000067BA000-memory.dmp

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memory/1896-50-0x0000000005640000-0x0000000005650000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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