snakekeylogger | da791f0ba7859d019d5ceaf184f2e64df5311e0179decb82678154c158c7095b

General

Target

VesselDetails.exe
Size

587KB
MD5

2171680ef08db64f0ced805359738f86
SHA1

346302d103cf057ae7b43015a1346ac4a59be939
SHA256

da791f0ba7859d019d5ceaf184f2e64df5311e0179decb82678154c158c7095b
SHA512

ade149a9521065730687453a0196fe716704f10fd246266ec19ba95429be295dbbc24ed21347fb0616c759598b91ea024c1eb60325a3094466310bbee492b26e
SSDEEP

12288:1YmQiKaxG8w2NKgudjntDkkN462b5DDsz7HBLCn2xAkAm3arxx:mmQiE8w2NKgu7K6CsnBLrP3Yx

Score

10^/10

snakekeylogger collection discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.asiapcm.org
Port:
26
Username:
[email protected]
Password:
re4445255
Email To:
[email protected]

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/3044-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/3044-24-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/3044-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/3044-20-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/3044-18-0x0000000000400000-0x0000000000426000-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
2872	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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
4	checkip.dyndns.org
8	reallyfreegeoip.org
9	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2304 set thread context of 3044	2304	VesselDetails.exe	33

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VesselDetails.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2304	VesselDetails.exe
2304	VesselDetails.exe
3044	RegSvcs.exe
2872	powershell.exe
3044	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2304	VesselDetails.exe
Token: SeDebugPrivilege	3044	RegSvcs.exe
Token: SeDebugPrivilege	2872	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2872	2304	VesselDetails.exe	29
PID 2304 wrote to memory of 2872	2304	VesselDetails.exe	29
PID 2304 wrote to memory of 2872	2304	VesselDetails.exe	29
PID 2304 wrote to memory of 2872	2304	VesselDetails.exe	29
PID 2304 wrote to memory of 2724	2304	VesselDetails.exe	31
PID 2304 wrote to memory of 2724	2304	VesselDetails.exe	31
PID 2304 wrote to memory of 2724	2304	VesselDetails.exe	31
PID 2304 wrote to memory of 2724	2304	VesselDetails.exe	31
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33
PID 2304 wrote to memory of 3044	2304	VesselDetails.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\VesselDetails.exe
"C:\Users\Admin\AppData\Local\Temp\VesselDetails.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BacUEoDscugyny.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2872
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BacUEoDscugyny" /XML "C:\Users\Admin\AppData\Local\Temp\tmp39D5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2724
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:3044

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

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp39D5.tmp

Filesize
1KB

MD5
8c62011f7953dd6f31e3f463e7e9f3a4

SHA1
dfaaa62826ec5dcec4e6486d02995928a4d88382

SHA256
97d8300432b661052bec6745337b42c593b155646c16cf695d3e304570750cd1

SHA512
33b952113e61bdc70edfda3592ad689e942769cda39a5c2c0f37acba6cd6b621af1e4210b15b93b04693457aba083461bec17331929edd6c0c608da27d91ffe5

Download Submit
memory/2304-26-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2304-1-0x0000000000850000-0x00000000008E8000-memory.dmp

Filesize
608KB

Download
memory/2304-2-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2304-3-0x0000000000360000-0x0000000000378000-memory.dmp

Filesize
96KB

Download
memory/2304-4-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/2304-5-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2304-6-0x0000000004F50000-0x0000000004FBC000-memory.dmp

Filesize
432KB

Download
memory/2304-0-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/3044-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3044-24-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3044-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3044-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3044-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3044-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3044-18-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3044-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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