snakekeylogger | 0a55d4ec929122952ccf0962347a5a5672a0051bcb31ead7f2c0d7df516eee6d

Analysis

max time kernel
66s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
04/04/2023, 15:23

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General

Target
Purchase order.exe
Size 830KB
Sample230404-ssf5naaa8s
SHA256 0a55d4ec929122952ccf0962347a5a5672a0051bcb31ead7f2c0d7df516eee6d
MD5 2df63cd7bbc6a163cd7977b25e668739
SHA1 ce7da59ef3c3969ae2dbbd78b7c95038756ae06b
SHA512 ec4c3b978e13a14ed00d9b29b80a247d97eb9788a32ebb55ec13f13a12087a8910eaa564af52c12978c344035641d0251c697fa92aeb87d7d2de7a86a624b0c4
SSDEEP 12288:tiNY6oOVZd2CSUy8kPy7tE1G7ilgZ50CJ7CxG:wNSOVZd2ObkP4tEYL5T7kG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot5587666659:AAG8NrrXJQs__dhk8nLJBFOspz2my8OVpX0/sendMessage?chat_id=5569775004

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4524-140-0x0000000000400000-0x0000000000426000-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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.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
47	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4516 set thread context of 4524	4516	Purchase order.exe	92

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4516	Purchase order.exe
4516	Purchase order.exe
4524	Purchase order.exe
4524	Purchase order.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4516	Purchase order.exe
Token: SeDebugPrivilege	4524	Purchase order.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 2404	4516	Purchase order.exe	91
PID 4516 wrote to memory of 2404	4516	Purchase order.exe	91
PID 4516 wrote to memory of 2404	4516	Purchase order.exe	91
PID 4516 wrote to memory of 4524	4516	Purchase order.exe	92
PID 4516 wrote to memory of 4524	4516	Purchase order.exe	92
PID 4516 wrote to memory of 4524	4516	Purchase order.exe	92
PID 4516 wrote to memory of 4524	4516	Purchase order.exe	92
PID 4516 wrote to memory of 4524	4516	Purchase order.exe	92
PID 4516 wrote to memory of 4524	4516	Purchase order.exe	92
PID 4516 wrote to memory of 4524	4516	Purchase order.exe	92
PID 4516 wrote to memory of 4524	4516	Purchase order.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.exe

C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
  2⤵
  PID:2404
- C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Purchase order.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchase order.exe.log
Size 1KB
SHA256 1e1b444fe2d8772f6709b22b94bb5b0aa7fa590f6a693705d9bf1f2f71267a55
MD5 7cad59aef5a93f093b6ba494f13f796f
SHA1 3cef97b77939bfc06dfd3946fc1a8cd159f67100
SHA512 8cedd03efec34c6226a01fd6b4831a689be16545ea6b849cd96f775e0722bfefd4b47f3dd8401d2080d341d4319f75995ece60de44352a1f86a2e5dc01e6210b
MD5 SHA1 SHA512

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memory/4516-133-0x0000000000CF0000-0x0000000000DC6000-memory.dmp

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memory/4516-134-0x0000000005CB0000-0x0000000006254000-memory.dmp

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memory/4516-135-0x00000000057A0000-0x0000000005832000-memory.dmp

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memory/4516-136-0x0000000005860000-0x000000000586A000-memory.dmp

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memory/4516-137-0x0000000005920000-0x0000000005930000-memory.dmp

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memory/4516-138-0x0000000005920000-0x0000000005930000-memory.dmp

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memory/4516-139-0x00000000074A0000-0x000000000753C000-memory.dmp

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memory/4524-140-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/4524-143-0x00000000057A0000-0x00000000057B0000-memory.dmp

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memory/4524-144-0x0000000006BF0000-0x0000000006DB2000-memory.dmp

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memory/4524-145-0x00000000057A0000-0x00000000057B0000-memory.dmp

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