snakekeylogger | 1997d0db749ed1dfc24d90ea0fcf6af634aa34b5bd2b9ad35932493f67e9fdce

General

Target

rCIMB-Transfer_Advice-202310301849809.exe
Size

330KB
MD5

bf6133744240674055bdd0b7783cea73
SHA1

790fe9b655289c7379cd100d3401a1d08da199e8
SHA256

1997d0db749ed1dfc24d90ea0fcf6af634aa34b5bd2b9ad35932493f67e9fdce
SHA512

44d63713637a85bf165797063c0e2d49ae42af055b733205acf1c5054573959512f5a4e0f6fcdfed880d46251859c575ca445f0a2aa533a6a57e4a02fe1d219d
SSDEEP

6144:MCKABMNiti0sBlU5gKB1lwPnGPLes5sOUvszaMzyMFsPe35bgaG/QQD:MfA6bhu8noLes5sOUvsziML35bgaGT

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.alualuminium.com.my
Port:
587
Username:
[email protected]
Password:
U8G4S13#8Zk$
Email To:
[email protected]

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/320-9-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger

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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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

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

Processes:

rCIMB-Transfer_Advice-202310301849809.exe

description pid process target process

PID 2236 set thread context of 320 2236 rCIMB-Transfer_Advice-202310301849809.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegAsm.exe

pid process

320 RegAsm.exe
320 RegAsm.exe
320 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 320 RegAsm.exe

flow	ioc
64	checkip.dyndns.org

description	pid	process	target process
PID 2236 set thread context of 320	2236	rCIMB-Transfer_Advice-202310301849809.exe	RegAsm.exe

pid	process
320	RegAsm.exe
320	RegAsm.exe
320	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	320	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

rCIMB-Transfer_Advice-202310301849809.exe

description	pid	process	target process
PID 2236 wrote to memory of 320	2236	rCIMB-Transfer_Advice-202310301849809.exe	RegAsm.exe
PID 2236 wrote to memory of 320	2236	rCIMB-Transfer_Advice-202310301849809.exe	RegAsm.exe
PID 2236 wrote to memory of 320	2236	rCIMB-Transfer_Advice-202310301849809.exe	RegAsm.exe
PID 2236 wrote to memory of 320	2236	rCIMB-Transfer_Advice-202310301849809.exe	RegAsm.exe
PID 2236 wrote to memory of 320	2236	rCIMB-Transfer_Advice-202310301849809.exe	RegAsm.exe
PID 2236 wrote to memory of 320	2236	rCIMB-Transfer_Advice-202310301849809.exe	RegAsm.exe
PID 2236 wrote to memory of 320	2236	rCIMB-Transfer_Advice-202310301849809.exe	RegAsm.exe
PID 2236 wrote to memory of 320	2236	rCIMB-Transfer_Advice-202310301849809.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\rCIMB-Transfer_Advice-202310301849809.exe
"C:\Users\Admin\AppData\Local\Temp\rCIMB-Transfer_Advice-202310301849809.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2236

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/320-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/320-18-0x0000000005F10000-0x0000000005F1A000-memory.dmp

Filesize
40KB

Download
memory/320-17-0x00000000060E0000-0x00000000062A2000-memory.dmp

Filesize
1.8MB

Download
memory/320-15-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

Filesize
64KB

Download
memory/320-16-0x0000000005EC0000-0x0000000005F10000-memory.dmp

Filesize
320KB

Download
memory/320-14-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/320-13-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

Filesize
64KB

Download
memory/320-12-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/2236-4-0x0000000005340000-0x0000000005394000-memory.dmp

Filesize
336KB

Download
memory/2236-8-0x0000000005420000-0x000000000542A000-memory.dmp

Filesize
40KB

Download
memory/2236-11-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/2236-7-0x0000000005710000-0x00000000057AC000-memory.dmp

Filesize
624KB

Download
memory/2236-6-0x0000000005460000-0x0000000005470000-memory.dmp

Filesize
64KB

Download
memory/2236-5-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/2236-0-0x0000000000830000-0x0000000000888000-memory.dmp

Filesize
352KB

Download
memory/2236-3-0x00000000052A0000-0x0000000005332000-memory.dmp

Filesize
584KB

Download
memory/2236-2-0x0000000005850000-0x0000000005DF4000-memory.dmp

Filesize
5.6MB

Download
memory/2236-1-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads