snakekeylogger | 7e590d991cf1e6437537909c294ca17948bba91dca4305998ff6bc20e9550d57

General

Target

z3maxx.exe
Size

953KB
MD5

fa1a625ed0d0c6326f18bc5cffdd1082
SHA1

429ef29fa97b129fea74691bb20eebf29c47995c
SHA256

7e590d991cf1e6437537909c294ca17948bba91dca4305998ff6bc20e9550d57
SHA512

112676862516fd63f152ab38e3557e06d2e3b37b5b55b3edc65afc85a4c170d5b993fe1c915eb03616074ad630735b48f7864502322e239f74324420e151725a
SSDEEP

24576:zAHnh+eWsN3skA4RV1Hom2KXFmIa/PNa45:+h+ZkldoPK1Xa/Fx

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7628028410:AAEpbCbHTWOy3r7fqeLD67OvGFoUK2pQiBw/sendMessage?chat_id=7337843299

Signatures

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

Snake Keylogger payload 3 IoCs

resource	yara_rule
behavioral1/memory/2844-12-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2844-14-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2844-16-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org
8	reallyfreegeoip.org
9	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1840 set thread context of 2844	1840	z3maxx.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	z3maxx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2844	RegSvcs.exe
2844	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1840	z3maxx.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1840	z3maxx.exe
1840	z3maxx.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1840	z3maxx.exe
1840	z3maxx.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 2844	1840	z3maxx.exe	31
PID 1840 wrote to memory of 2844	1840	z3maxx.exe	31
PID 1840 wrote to memory of 2844	1840	z3maxx.exe	31
PID 1840 wrote to memory of 2844	1840	z3maxx.exe	31
PID 1840 wrote to memory of 2844	1840	z3maxx.exe	31
PID 1840 wrote to memory of 2844	1840	z3maxx.exe	31
PID 1840 wrote to memory of 2844	1840	z3maxx.exe	31
PID 1840 wrote to memory of 2844	1840	z3maxx.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\z3maxx.exe
"C:\Users\Admin\AppData\Local\Temp\z3maxx.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\z3maxx.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1840-11-0x00000000001B0000-0x00000000001B4000-memory.dmp

Filesize
16KB

Download
memory/2844-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2844-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2844-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2844-17-0x000000007427E000-0x000000007427F000-memory.dmp

Filesize
4KB

Download
memory/2844-18-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download
memory/2844-19-0x000000007427E000-0x000000007427F000-memory.dmp

Filesize
4KB

Download
memory/2844-20-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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