snakekeylogger | b3816f2dcf00c8a7befec528d324e2016325ae067c9d08466509b427dc9311a1

General

Target
MV ZHONG MENG HANG LIAN.exe
Size 430KB
Sample221124-qndgvsah21
SHA256 0b4359771fb67318c3cdc36e1c33b202aec9595d1a66bdd214ca54f44f478906
MD5 905201355ea21ee452f8149fe9b7aeff
SHA1 421682470a987e8494007b97abbde9a1b4dc9541
SHA512 87f7cc2f6eefe780befdcda429c21d34dd8967022879c0b1643eacc55c8b17e795932b315af43aa1a16001e799ae4245bbd000610de901a549d2153b2df3c465
SSDEEP 3072:2g1H4I8ZZpSOs4PNdvr+1UjTsvY3h4I5UWIDRRineV3Kap/ObYOOt7POITGCotdK:IIMZUOJpq1B4UhDqe5pmboNNPonA4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

snakekeylogger collection keylogger persistence spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 6 IoCs

resource	yara_rule
behavioral1/memory/364-65-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/364-67-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/364-68-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/364-69-0x000000000042075E-mapping.dmp	family_snakekeylogger
behavioral1/memory/364-71-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/364-73-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MV ZHONG MENG HANG LIAN.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MV ZHONG MENG HANG LIAN.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MV ZHONG MENG HANG LIAN.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\Lrommxlr = "\"C:\\Users\\Admin\\AppData\\Roaming\\Wxoyekv\\Lrommxlr.exe\""	MV ZHONG MENG HANG LIAN.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
7	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2028 set thread context of 364	2028	MV ZHONG MENG HANG LIAN.exe	30

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

pid	Process
764	powershell.exe
364	MV ZHONG MENG HANG LIAN.exe
364	MV ZHONG MENG HANG LIAN.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2028	MV ZHONG MENG HANG LIAN.exe
Token: SeDebugPrivilege	764	powershell.exe
Token: SeDebugPrivilege	364	MV ZHONG MENG HANG LIAN.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 764	2028	MV ZHONG MENG HANG LIAN.exe	28
PID 2028 wrote to memory of 764	2028	MV ZHONG MENG HANG LIAN.exe	28
PID 2028 wrote to memory of 764	2028	MV ZHONG MENG HANG LIAN.exe	28
PID 2028 wrote to memory of 764	2028	MV ZHONG MENG HANG LIAN.exe	28
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30
PID 2028 wrote to memory of 364	2028	MV ZHONG MENG HANG LIAN.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MV ZHONG MENG HANG LIAN.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MV ZHONG MENG HANG LIAN.exe

C:\Users\Admin\AppData\Local\Temp\MV ZHONG MENG HANG LIAN.exe
"C:\Users\Admin\AppData\Local\Temp\MV ZHONG MENG HANG LIAN.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:764
- C:\Users\Admin\AppData\Local\Temp\MV ZHONG MENG HANG LIAN.exe
  "C:\Users\Admin\AppData\Local\Temp\MV ZHONG MENG HANG LIAN.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/364-63-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/364-73-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/364-71-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/364-68-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/364-67-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/364-65-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/364-62-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/764-61-0x000000006E7F0000-0x000000006ED9B000-memory.dmp

Download

memory/764-60-0x000000006E7F0000-0x000000006ED9B000-memory.dmp

Download

memory/764-59-0x000000006E7F0000-0x000000006ED9B000-memory.dmp

Download

memory/2028-54-0x0000000000190000-0x0000000000202000-memory.dmp

Download

memory/2028-56-0x0000000005C10000-0x0000000005E34000-memory.dmp

Download

memory/2028-55-0x0000000075531000-0x0000000075533000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads