snakekeylogger | f5b1deb060982e05d98c940ebf0b8d50cef95922fab5fed5ed8c2a9d7acdda80

Analysis

max time kernel
116s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 12:03

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General

Target

Tpnit.exe
Size

959KB
MD5

5b0a60ef51c05675082381b585d61bb8
SHA1

a366c2ca83a519d0cff24f7b3ff6cdaa2412f673
SHA256

f5b1deb060982e05d98c940ebf0b8d50cef95922fab5fed5ed8c2a9d7acdda80
SHA512

7b67910f4b108aafb0c2e3a31128d052d836d4a4be648b7a0603e04800e00a0b709d449835ac0031958eacfa15555844590c49e1e5430aab0316477f01a6480b
SSDEEP

24576:4wSCS8u8YPnQ/BpIZ5tkZLRmCfOKu/FAyyaP7y9xlfhqpGcbuueq:RzS38YPn6FZcFe0m9hqocburq

Score

10^/10

snakekeylogger collection credential_access keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot7327372938:AAHFwuC3knQ9jY-1T98yh8owXZiixS_neU0/sendMessage?chat_id=6951521546

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4960-1094-0x0000000140000000-0x0000000140024000-memory.dmp	family_snakekeylogger

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3892 created 3460	3892	Tpnit.exe	55

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Whyhyf = "C:\\Users\\Admin\\AppData\\Roaming\\Whyhyf.exe"	Tpnit.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
15	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3892 set thread context of 4960	3892	Tpnit.exe	94

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3892	Tpnit.exe
4960	MSBuild.exe
4960	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3892	Tpnit.exe
Token: SeDebugPrivilege	3892	Tpnit.exe
Token: SeDebugPrivilege	4960	MSBuild.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3892 wrote to memory of 4960	3892	Tpnit.exe	94
PID 3892 wrote to memory of 4960	3892	Tpnit.exe	94
PID 3892 wrote to memory of 4960	3892	Tpnit.exe	94
PID 3892 wrote to memory of 4960	3892	Tpnit.exe	94
PID 3892 wrote to memory of 4960	3892	Tpnit.exe	94
PID 3892 wrote to memory of 4960	3892	Tpnit.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3460
- C:\Users\Admin\AppData\Local\Temp\Tpnit.exe
  "C:\Users\Admin\AppData\Local\Temp\Tpnit.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3892
- 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:4960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3892-0-0x00007FFACF013000-0x00007FFACF015000-memory.dmp

Filesize
8KB

Download
memory/3892-1-0x00000298B6050000-0x00000298B6144000-memory.dmp

Filesize
976KB

Download
memory/3892-2-0x00000298D0560000-0x00000298D0646000-memory.dmp

Filesize
920KB

Download
memory/3892-3-0x00000298D0650000-0x00000298D0736000-memory.dmp

Filesize
920KB

Download
memory/3892-62-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-59-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-61-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/3892-57-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-55-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-15-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-13-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-68-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-66-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-64-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-53-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-51-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-49-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-47-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-45-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-43-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-42-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-39-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-37-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-35-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-33-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-31-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-29-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-27-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-25-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-23-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-21-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-19-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-17-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-11-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-9-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-7-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-5-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-4-0x00000298D0650000-0x00000298D0731000-memory.dmp

Filesize
900KB

Download
memory/3892-1079-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/3892-1080-0x00000298D0840000-0x00000298D08A2000-memory.dmp

Filesize
392KB

Download
memory/3892-1081-0x00000298D08A0000-0x00000298D08EC000-memory.dmp

Filesize
304KB

Download
memory/3892-1085-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/3892-1086-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/3892-1087-0x00007FFACF013000-0x00007FFACF015000-memory.dmp

Filesize
8KB

Download
memory/3892-1089-0x00000298D1BA0000-0x00000298D1BF4000-memory.dmp

Filesize
336KB

Download
memory/3892-1092-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/4960-1093-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/4960-1094-0x0000000140000000-0x0000000140024000-memory.dmp

Filesize
144KB

Download
memory/4960-1095-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/4960-1096-0x0000018A8D6B0000-0x0000018A8D700000-memory.dmp

Filesize
320KB

Download
memory/4960-1097-0x0000018AA64F0000-0x0000018AA66B2000-memory.dmp

Filesize
1.8MB

Download
memory/4960-1098-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download