snakekeylogger | 32a00fc9b61a3ca12be1aa91388fbd5c37b19650b01a11d0e5521097b3de3e11

General

Target

Xcipfrrs.exe
Size

340KB
MD5

be386c47c42d11ab2b0ee2e820297608
SHA1

3a2720f80b8394f0ce859d1dd5566b681252ea84
SHA256

32a00fc9b61a3ca12be1aa91388fbd5c37b19650b01a11d0e5521097b3de3e11
SHA512

b7e401045970b7349c8e113cb53c64171e54e34c526a2b3ef8344156f6bd5fc40479d6c1f4281e5a82dc7eeab143a257c6958cc13da25979acd4cd7e4be19486
SSDEEP

6144:QvpJo0XE/ZLUsQqVChyUWmSvoPsasomPFpyit2mHKW2cwOkxStaC8dNH1:ko/qqoU8zsu6stR

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6380706838:AAHeNJQXD2oljrKM46U8G-Zyq3GHA5SyN3c/sendMessage?chat_id=5262627523

Signatures

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

Snake Keylogger payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1592-9-0x0000000140000000-0x0000000140022000-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:

Xcipfrrs.exe

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

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

Processes:

Xcipfrrs.exe

description pid process target process

PID 312 set thread context of 1592 312 Xcipfrrs.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MSBuild.exe

pid process

1592 MSBuild.exe
1592 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Xcipfrrs.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 312 Xcipfrrs.exe
Token: SeDebugPrivilege 1592 MSBuild.exe

flow	ioc
40	checkip.dyndns.org

description	pid	process	target process
PID 312 set thread context of 1592	312	Xcipfrrs.exe	MSBuild.exe

pid	process
1592	MSBuild.exe
1592	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	312	Xcipfrrs.exe
Token: SeDebugPrivilege	1592	MSBuild.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Xcipfrrs.exe

description	pid	process	target process
PID 312 wrote to memory of 1592	312	Xcipfrrs.exe	MSBuild.exe
PID 312 wrote to memory of 1592	312	Xcipfrrs.exe	MSBuild.exe
PID 312 wrote to memory of 1592	312	Xcipfrrs.exe	MSBuild.exe
PID 312 wrote to memory of 1592	312	Xcipfrrs.exe	MSBuild.exe
PID 312 wrote to memory of 1592	312	Xcipfrrs.exe	MSBuild.exe
PID 312 wrote to memory of 1592	312	Xcipfrrs.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\Xcipfrrs.exe
"C:\Users\Admin\AppData\Local\Temp\Xcipfrrs.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:312

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:1592

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/312-11-0x00007FF8DAB60000-0x00007FF8DB621000-memory.dmp

Filesize
10.8MB

Download
memory/312-1-0x00007FF8DAB60000-0x00007FF8DB621000-memory.dmp

Filesize
10.8MB

Download
memory/312-2-0x0000022A58070000-0x0000022A58080000-memory.dmp

Filesize
64KB

Download
memory/312-3-0x0000022A58000000-0x0000022A58048000-memory.dmp

Filesize
288KB

Download
memory/312-4-0x0000022A3F7A0000-0x0000022A3F7D6000-memory.dmp

Filesize
216KB

Download
memory/312-5-0x0000022A58330000-0x0000022A5837C000-memory.dmp

Filesize
304KB

Download
memory/312-6-0x00007FF8DAB60000-0x00007FF8DB621000-memory.dmp

Filesize
10.8MB

Download
memory/312-7-0x0000022A58070000-0x0000022A58080000-memory.dmp

Filesize
64KB

Download
memory/312-0-0x0000022A3DA30000-0x0000022A3DA8A000-memory.dmp

Filesize
360KB

Download
memory/1592-9-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1592-12-0x00007FF8DAB60000-0x00007FF8DB621000-memory.dmp

Filesize
10.8MB

Download
memory/1592-13-0x00000203A3A50000-0x00000203A3A60000-memory.dmp

Filesize
64KB

Download
memory/1592-14-0x00007FF8DAB60000-0x00007FF8DB621000-memory.dmp

Filesize
10.8MB

Download
memory/1592-15-0x00000203A3A50000-0x00000203A3A60000-memory.dmp

Filesize
64KB

Download
memory/1592-16-0x00000203A3A60000-0x00000203A3AB0000-memory.dmp

Filesize
320KB

Download
memory/1592-17-0x00000203BC650000-0x00000203BC812000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads