snakekeylogger | 80b55aa26af1c8cb84556ced208b0338313aa010bbb544cbb6a87f023b77899b

General

Target

Ttwsg.exe
Size

64KB
MD5

92877b963c90599d222a3c851dbbdaa1
SHA1

c2c4de2c7c5681f3be5c2ddca7f5ff7330d76dfd
SHA256

80b55aa26af1c8cb84556ced208b0338313aa010bbb544cbb6a87f023b77899b
SHA512

bd6b41b405cc333ceccd24fe68154216d1a8104639e5a1fe488f9436e2cd8a1e4900d81ef81364f0f8484d783608aef0632afee7d05677889f335d8dafcb0c2d
SSDEEP

1536:lBWET/xqKbqqMaWFwRfi0BVIHrtokNgRxv4v:l7/vGii2VILtPaRxk

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6491126749:AAEgYHjfebL8yDkuzneMucym5CaT8YIRGJE/sendMessage?chat_id=5262627523

Signatures

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

Snake Keylogger payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2216-10-0x0000000140000000-0x0000000140022000-memory.dmp	family_snakekeylogger
behavioral2/memory/2216-16-0x0000022523050000-0x0000022523060000-memory.dmp	family_snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Ttwsg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sssssss = "C:\\Users\\Admin\\AppData\\Roaming\\sssssss.exe"	Ttwsg.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

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

Processes:

Ttwsg.exe

description pid process target process

PID 4820 set thread context of 2216 4820 Ttwsg.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

MSBuild.exe

pid process

2216 MSBuild.exe
2216 MSBuild.exe
2216 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Ttwsg.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 4820 Ttwsg.exe
Token: SeDebugPrivilege 2216 MSBuild.exe

flow	ioc
65	checkip.dyndns.org

description	pid	process	target process
PID 4820 set thread context of 2216	4820	Ttwsg.exe	MSBuild.exe

pid	process
2216	MSBuild.exe
2216	MSBuild.exe
2216	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4820	Ttwsg.exe
Token: SeDebugPrivilege	2216	MSBuild.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Ttwsg.exe

description	pid	process	target process
PID 4820 wrote to memory of 2216	4820	Ttwsg.exe	MSBuild.exe
PID 4820 wrote to memory of 2216	4820	Ttwsg.exe	MSBuild.exe
PID 4820 wrote to memory of 2216	4820	Ttwsg.exe	MSBuild.exe
PID 4820 wrote to memory of 2216	4820	Ttwsg.exe	MSBuild.exe
PID 4820 wrote to memory of 2216	4820	Ttwsg.exe	MSBuild.exe
PID 4820 wrote to memory of 2216	4820	Ttwsg.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\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-1-5-21-3811856890-180006922-3689258494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\Ttwsg.exe
"C:\Users\Admin\AppData\Local\Temp\Ttwsg.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4820

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2216

Network

MITRE ATT&CK Enterprise v15

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

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2216-10-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/2216-18-0x000002253BAC0000-0x000002253BC82000-memory.dmp

Filesize
1.8MB

Download
memory/2216-17-0x0000022522EC0000-0x0000022522F10000-memory.dmp

Filesize
320KB

Download
memory/2216-16-0x0000022523050000-0x0000022523060000-memory.dmp

Filesize
64KB

Download
memory/2216-15-0x00007FFD01390000-0x00007FFD01E51000-memory.dmp

Filesize
10.8MB

Download
memory/2216-14-0x0000022523050000-0x0000022523060000-memory.dmp

Filesize
64KB

Download
memory/2216-12-0x00007FFD01390000-0x00007FFD01E51000-memory.dmp

Filesize
10.8MB

Download
memory/4820-4-0x0000021EEBDD0000-0x0000021EEBE08000-memory.dmp

Filesize
224KB

Download
memory/4820-8-0x0000021EEA240000-0x0000021EEA250000-memory.dmp

Filesize
64KB

Download
memory/4820-7-0x00007FFD01390000-0x00007FFD01E51000-memory.dmp

Filesize
10.8MB

Download
memory/4820-6-0x0000021EEC820000-0x0000021EEC86C000-memory.dmp

Filesize
304KB

Download
memory/4820-13-0x00007FFD01390000-0x00007FFD01E51000-memory.dmp

Filesize
10.8MB

Download
memory/4820-5-0x0000021EEC7E0000-0x0000021EEC816000-memory.dmp

Filesize
216KB

Download
memory/4820-0-0x0000021EE9E70000-0x0000021EE9E84000-memory.dmp

Filesize
80KB

Download
memory/4820-3-0x0000021EEBD80000-0x0000021EEBDD0000-memory.dmp

Filesize
320KB

Download
memory/4820-2-0x0000021EEA240000-0x0000021EEA250000-memory.dmp

Filesize
64KB

Download
memory/4820-1-0x00007FFD01390000-0x00007FFD01E51000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads