snakekeylogger | 99c5c57ec66db2b568df0891d6e8d4c6420e1bcd629ef55f7148659c9759e3eb

General

Target

Ylvclgj.exe
Size

22KB
MD5

24726d59051982bcb1ded3daedaacb0b
SHA1

fc2e317d419062860f98f3f0df2f95fcb5ce7718
SHA256

99c5c57ec66db2b568df0891d6e8d4c6420e1bcd629ef55f7148659c9759e3eb
SHA512

768d523fb9fbf5b44c8ae784c8525fb04a382fefaa2594a222ba5c44aae48023d7330e3e25e7bd238f31d6b4921931c276836dcf90fa43c5beaf752e306e502d
SSDEEP

384:eU5ewSdw/L2APL6yRqtxAx+roEOsVK/KO+sB6fOK:FqwCs3RqtGx+roAYP+97

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6563963046:AAGlyBHZ_ALQCHnOUZcYa0FHqP2za43gVaM/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/60-8-0x0000000140000000-0x0000000140022000-memory.dmp	family_snakekeylogger
behavioral2/memory/60-12-0x0000024462180000-0x0000024462190000-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-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\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:

Ylvclgj.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dddddd = "C:\\Users\\Admin\\AppData\\Roaming\\dddddd.exe"	Ylvclgj.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

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

Processes:

Ylvclgj.exe

description pid process target process

PID 4116 set thread context of 60 4116 Ylvclgj.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MSBuild.exe

pid process

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

Processes:

Ylvclgj.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 4116 Ylvclgj.exe
Token: SeDebugPrivilege 60 MSBuild.exe

flow	ioc
52	checkip.dyndns.org

description	pid	process	target process
PID 4116 set thread context of 60	4116	Ylvclgj.exe	MSBuild.exe

pid	process
60	MSBuild.exe
60	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4116	Ylvclgj.exe
Token: SeDebugPrivilege	60	MSBuild.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Ylvclgj.exe

description	pid	process	target process
PID 4116 wrote to memory of 60	4116	Ylvclgj.exe	MSBuild.exe
PID 4116 wrote to memory of 60	4116	Ylvclgj.exe	MSBuild.exe
PID 4116 wrote to memory of 60	4116	Ylvclgj.exe	MSBuild.exe
PID 4116 wrote to memory of 60	4116	Ylvclgj.exe	MSBuild.exe
PID 4116 wrote to memory of 60	4116	Ylvclgj.exe	MSBuild.exe
PID 4116 wrote to memory of 60	4116	Ylvclgj.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\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-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\Ylvclgj.exe
"C:\Users\Admin\AppData\Local\Temp\Ylvclgj.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4116

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:60

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

Loading Replay Monitor...

Downloads

memory/60-8-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/60-16-0x0000024462180000-0x0000024462190000-memory.dmp

Filesize
64KB

Download
memory/60-15-0x00007FF9AA4A0000-0x00007FF9AAF61000-memory.dmp

Filesize
10.8MB

Download
memory/60-14-0x00000244625E0000-0x00000244627A2000-memory.dmp

Filesize
1.8MB

Download
memory/60-13-0x0000024462090000-0x00000244620E0000-memory.dmp

Filesize
320KB

Download
memory/60-12-0x0000024462180000-0x0000024462190000-memory.dmp

Filesize
64KB

Download
memory/60-11-0x00007FF9AA4A0000-0x00007FF9AAF61000-memory.dmp

Filesize
10.8MB

Download
memory/4116-6-0x00007FF9AA4A0000-0x00007FF9AAF61000-memory.dmp

Filesize
10.8MB

Download
memory/4116-0-0x000001D18D580000-0x000001D18D58C000-memory.dmp

Filesize
48KB

Download
memory/4116-10-0x00007FF9AA4A0000-0x00007FF9AAF61000-memory.dmp

Filesize
10.8MB

Download
memory/4116-5-0x000001D1A7E60000-0x000001D1A7EAC000-memory.dmp

Filesize
304KB

Download
memory/4116-4-0x000001D1A7A40000-0x000001D1A7A76000-memory.dmp

Filesize
216KB

Download
memory/4116-3-0x000001D18F190000-0x000001D18F1D8000-memory.dmp

Filesize
288KB

Download
memory/4116-2-0x000001D1A7B10000-0x000001D1A7B20000-memory.dmp

Filesize
64KB

Download
memory/4116-1-0x00007FF9AA4A0000-0x00007FF9AAF61000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads