snakekeylogger | 6200e8758a22991d5ac0af555cbe25f8d2b59ca0f5f212402d8ec805c7f5cfe7

General

Target

RFQ-11015-12.exe
Size

27KB
MD5

a1dc1cff823fcdd66b73eef2e7c32715
SHA1

451cd2d2033b8774dab60a954e158c7aafaf2d47
SHA256

6200e8758a22991d5ac0af555cbe25f8d2b59ca0f5f212402d8ec805c7f5cfe7
SHA512

e105618d9863401f9ee56b7eb6ff826bb5b4bef76cef0b5b6b211c839b8ff7ed9277381c243f5e2855609c42c6ae1f74082c962398e5ebd2ed81a326d44e3623
SSDEEP

384:Nukgi2WJFHHMleT2gL1CAOh05PjoaYLR/NLXFqgnZE3eCjRyY+vGyox8u5/DpW+v:shKMM2jOj+RVLp4Vh+eyM8upJ

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.stilltech.ro
Port:
587
Username:
office@stilltech.ro
Password:
eurobit555ro
Email To:
riverswade5@gmail.com

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

RFQ-11015-12.exe

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\\Bijyy\\Agpfya.exe\","	RFQ-11015-12.exe

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

Snake Keylogger payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2308-147-0x0000000000400000-0x0000000000426000-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

Processes:

RFQ-11015-12.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	RFQ-11015-12.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
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
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\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.

Processes:

flow ioc

44 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ-11015-12.exe

description pid process target process

PID 4244 set thread context of 2308 4244 RFQ-11015-12.exe MSBuild.exe
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 3 IoCs

Processes:

powershell.exeMSBuild.exe

pid process

4400 powershell.exe
4400 powershell.exe
2308 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

RFQ-11015-12.exepowershell.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 4244 RFQ-11015-12.exe
Token: SeDebugPrivilege 4400 powershell.exe
Token: SeDebugPrivilege 2308 MSBuild.exe

flow	ioc
44	checkip.dyndns.org

description	pid	process	target process
PID 4244 set thread context of 2308	4244	RFQ-11015-12.exe	MSBuild.exe

pid	process
4400	powershell.exe
4400	powershell.exe
2308	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4244	RFQ-11015-12.exe
Token: SeDebugPrivilege	4400	powershell.exe
Token: SeDebugPrivilege	2308	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

RFQ-11015-12.exe

description	pid	process	target process
PID 4244 wrote to memory of 4400	4244	RFQ-11015-12.exe	powershell.exe
PID 4244 wrote to memory of 4400	4244	RFQ-11015-12.exe	powershell.exe
PID 4244 wrote to memory of 4400	4244	RFQ-11015-12.exe	powershell.exe
PID 4244 wrote to memory of 2308	4244	RFQ-11015-12.exe	MSBuild.exe
PID 4244 wrote to memory of 2308	4244	RFQ-11015-12.exe	MSBuild.exe
PID 4244 wrote to memory of 2308	4244	RFQ-11015-12.exe	MSBuild.exe
PID 4244 wrote to memory of 2308	4244	RFQ-11015-12.exe	MSBuild.exe
PID 4244 wrote to memory of 2308	4244	RFQ-11015-12.exe	MSBuild.exe
PID 4244 wrote to memory of 2308	4244	RFQ-11015-12.exe	MSBuild.exe
PID 4244 wrote to memory of 2308	4244	RFQ-11015-12.exe	MSBuild.exe
PID 4244 wrote to memory of 2308	4244	RFQ-11015-12.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

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

Processes:

MSBuild.exe

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\RFQ-11015-12.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ-11015-12.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4244

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:4400

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:2308

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2308-146-0x0000000000000000-mapping.dmp

Download
memory/2308-148-0x00000000064F0000-0x00000000066B2000-memory.dmp

Filesize
1.8MB

Download
memory/2308-147-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4244-133-0x0000000004EC0000-0x0000000005464000-memory.dmp

Filesize
5.6MB

Download
memory/4244-134-0x0000000004B60000-0x0000000004BF2000-memory.dmp

Filesize
584KB

Download
memory/4244-135-0x0000000004CA0000-0x0000000004D3C000-memory.dmp

Filesize
624KB

Download
memory/4244-136-0x0000000004E50000-0x0000000004E5A000-memory.dmp

Filesize
40KB

Download
memory/4244-137-0x00000000063A0000-0x00000000063C2000-memory.dmp

Filesize
136KB

Download
memory/4244-132-0x0000000000060000-0x000000000006C000-memory.dmp

Filesize
48KB

Download
memory/4400-140-0x0000000004EE0000-0x0000000005508000-memory.dmp

Filesize
6.2MB

Download
memory/4400-142-0x0000000005790000-0x00000000057F6000-memory.dmp

Filesize
408KB

Download
memory/4400-143-0x0000000005DE0000-0x0000000005DFE000-memory.dmp

Filesize
120KB

Download
memory/4400-144-0x0000000007640000-0x0000000007CBA000-memory.dmp

Filesize
6.5MB

Download
memory/4400-145-0x00000000062F0000-0x000000000630A000-memory.dmp

Filesize
104KB

Download
memory/4400-141-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/4400-139-0x0000000002830000-0x0000000002866000-memory.dmp

Filesize
216KB

Download
memory/4400-138-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads