snakekeylogger | a1b4af5ce8cb01ceddb2c9269dafbea2c5c9340e21a916a59b304158110aa4c5

General

Target

malw.exe
Size

603KB
MD5

39c7da67656e52cfe66f0fb0a223cdee
SHA1

3dd0f07f64387e25ebba373ac9557cc7941ded55
SHA256

a1b4af5ce8cb01ceddb2c9269dafbea2c5c9340e21a916a59b304158110aa4c5
SHA512

b21d56b7ae71993d7d4456d1fa0f7ce4d90049aedd5d6685da709b8e213aa51388e3f8a7d21e5806d45bf579d96a9eab7a94f3ba2905c8e5f7059c1b5620a4c8
SSDEEP

12288:woaDPw1Qk89Tmyy8e9vLr78Ly3KzgGUsB/gRZYHdh:gLw9gTFyXjvgy3Kz/UKWqd

Score

10^/10

snakekeylogger collection discovery execution keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: ftp
Host:
50.31.176.103
Port:
21
Username:
[email protected]
Password:
HW=f09RQ-BL1

Extracted

Family

snakekeylogger

Credentials

Protocol: ftp
Host:
ftp://50.31.176.103/
Port:
21
Username:
[email protected]
Password:
HW=f09RQ-BL1

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2968-20-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2968-24-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2968-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2968-18-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2968-26-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2776	powershell.exe

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	malw.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	malw.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	malw.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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1636 set thread context of 2968	1636	malw.exe	35

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 4 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	malw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	malw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2868	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1636	malw.exe
1636	malw.exe
1636	malw.exe
1636	malw.exe
1636	malw.exe
2968	malw.exe
2776	powershell.exe
2968	malw.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	malw.exe
Token: SeDebugPrivilege	2968	malw.exe
Token: SeDebugPrivilege	2776	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 2776	1636	malw.exe	31
PID 1636 wrote to memory of 2776	1636	malw.exe	31
PID 1636 wrote to memory of 2776	1636	malw.exe	31
PID 1636 wrote to memory of 2776	1636	malw.exe	31
PID 1636 wrote to memory of 2868	1636	malw.exe	32
PID 1636 wrote to memory of 2868	1636	malw.exe	32
PID 1636 wrote to memory of 2868	1636	malw.exe	32
PID 1636 wrote to memory of 2868	1636	malw.exe	32
PID 1636 wrote to memory of 2968	1636	malw.exe	35
PID 1636 wrote to memory of 2968	1636	malw.exe	35
PID 1636 wrote to memory of 2968	1636	malw.exe	35
PID 1636 wrote to memory of 2968	1636	malw.exe	35
PID 1636 wrote to memory of 2968	1636	malw.exe	35
PID 1636 wrote to memory of 2968	1636	malw.exe	35
PID 1636 wrote to memory of 2968	1636	malw.exe	35
PID 1636 wrote to memory of 2968	1636	malw.exe	35
PID 1636 wrote to memory of 2968	1636	malw.exe	35

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	malw.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	malw.exe

C:\Users\Admin\AppData\Local\Temp\malw.exe
"C:\Users\Admin\AppData\Local\Temp\malw.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RePUtenbQjvc.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2776
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RePUtenbQjvc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF344.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2868
- C:\Users\Admin\AppData\Local\Temp\malw.exe
  "C:\Users\Admin\AppData\Local\Temp\malw.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:2968

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF344.tmp

Filesize
1KB

MD5
a07b34c7f964116247f89fad0fd813a3

SHA1
77c858e88a50f7e27a18f8169a8a34fbf7d6f13d

SHA256
3208de1cb8ffd3c093abb1c9076f8a88e7048296146bf4da1c2c0c88452d72b5

SHA512
574eb80e0a7994404d9cea640d76c0c2cfa49a066b9ac5c7e2e0c837a8b0fb804d4a315fbdc949ae1f7e622f1ad29ed5604b7c9d91c55664ca7cf3ee71372bf3

Download Submit
memory/1636-27-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/1636-1-0x0000000000B60000-0x0000000000BFC000-memory.dmp

Filesize
624KB

Download
memory/1636-2-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/1636-3-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1636-4-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/1636-5-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/1636-6-0x0000000000AB0000-0x0000000000B18000-memory.dmp

Filesize
416KB

Download
memory/1636-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/2968-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2968-24-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2968-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2968-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2968-18-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2968-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2968-26-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2968-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads