snakekeylogger | ba357be7f8b30e5ffbd88531d2c775280ac102ad0965e56bd5fc2d89dfac0f2f

Analysis

max time kernel
151s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26/09/2022, 06:41

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General

Target
DHL 92622DOC.exe
Size 34KB
Sample220926-hfsb2shgf2
SHA256 ba357be7f8b30e5ffbd88531d2c775280ac102ad0965e56bd5fc2d89dfac0f2f
MD5 eae85ae434cfebbc889857292a00d7ce
SHA1 b110906db7a747f84148d3f72649fd9de2c8b1fc
SHA512 22ed8ec74c6b57eb9415b58a54406fd9291599c2e9b4ba65ffdc4a2b8a32fb8c73bdd30bd280c7ca1a0a64160d5b13e839ed9acda0993e9284caaff882b1b197
SSDEEP 384:SlzZPyLdtekEWPjpeecDzlelVI3fiKIulCISzg3Sojg+XY5Za4MKCISmnsZyJNK9:Sum2jpvc6Qfau8lojJbKCIS3s0
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol
smtp
Host
mail.stilltech.ro
Port
587
Username
[email protected]
Password
eurobit555ro
Email to
[email protected]

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Aprolnyke\\Hzhceizig.exe\","	DHL 92622DOC.exe

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/1884-144-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	DHL 92622DOC.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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
35	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4152 set thread context of 1884	4152	DHL 92622DOC.exe	91

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 5 IoCs

pid	Process
3268	powershell.exe
3268	powershell.exe
4152	DHL 92622DOC.exe
4152	DHL 92622DOC.exe
1884	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4152	DHL 92622DOC.exe
Token: SeDebugPrivilege	3268	powershell.exe
Token: SeDebugPrivilege	1884	MSBuild.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 3268	4152	DHL 92622DOC.exe	81
PID 4152 wrote to memory of 3268	4152	DHL 92622DOC.exe	81
PID 4152 wrote to memory of 3268	4152	DHL 92622DOC.exe	81
PID 4152 wrote to memory of 1668	4152	DHL 92622DOC.exe	90
PID 4152 wrote to memory of 1668	4152	DHL 92622DOC.exe	90
PID 4152 wrote to memory of 1668	4152	DHL 92622DOC.exe	90
PID 4152 wrote to memory of 1884	4152	DHL 92622DOC.exe	91
PID 4152 wrote to memory of 1884	4152	DHL 92622DOC.exe	91
PID 4152 wrote to memory of 1884	4152	DHL 92622DOC.exe	91
PID 4152 wrote to memory of 1884	4152	DHL 92622DOC.exe	91
PID 4152 wrote to memory of 1884	4152	DHL 92622DOC.exe	91
PID 4152 wrote to memory of 1884	4152	DHL 92622DOC.exe	91
PID 4152 wrote to memory of 1884	4152	DHL 92622DOC.exe	91
PID 4152 wrote to memory of 1884	4152	DHL 92622DOC.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\DHL 92622DOC.exe
"C:\Users\Admin\AppData\Local\Temp\DHL 92622DOC.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3268
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  PID:1668
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1884

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1884-149-0x0000000006520000-0x000000000652A000-memory.dmp

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memory/1884-148-0x00000000067A0000-0x0000000006832000-memory.dmp

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memory/1884-147-0x00000000065D0000-0x0000000006792000-memory.dmp

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memory/1884-146-0x0000000005540000-0x00000000055DC000-memory.dmp

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memory/1884-145-0x0000000005A50000-0x0000000005FF4000-memory.dmp

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memory/1884-144-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/3268-136-0x0000000005350000-0x0000000005978000-memory.dmp

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memory/3268-141-0x0000000006660000-0x000000000667A000-memory.dmp

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memory/3268-140-0x00000000077A0000-0x0000000007E1A000-memory.dmp

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memory/3268-139-0x0000000006160000-0x000000000617E000-memory.dmp

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memory/3268-138-0x0000000005AF0000-0x0000000005B56000-memory.dmp

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memory/3268-137-0x0000000005980000-0x00000000059E6000-memory.dmp

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memory/3268-135-0x0000000004B80000-0x0000000004BB6000-memory.dmp

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memory/4152-132-0x0000000000870000-0x000000000087E000-memory.dmp

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memory/4152-133-0x0000000005C50000-0x0000000005C72000-memory.dmp

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