snakekeylogger | aa5af03ce3f907fb786a8b3247b9f55e4f9e0edec98568cdb517ff1a1366aaf0

General

Target

04251452615625625.exe
Size

894KB
MD5

f18163514badc4877621cdbabf9b64f8
SHA1

529ee50edf00cf161e2e79a70bb43c1c2ebc609e
SHA256

aa5af03ce3f907fb786a8b3247b9f55e4f9e0edec98568cdb517ff1a1366aaf0
SHA512

c5ae0768462c3818a19c580e8f319c6ee9c9306a850479785c5deaba7840dd4c01c5f197fc287df10cfa26adf12f5b4e0879ac545c5be8ce78c0aa9727fe3855
SSDEEP

12288:HN1OuXVHsFjz65GK+7dOx9y6IvgYeS4OqEvPR:6iRtx9y6IvPEfU

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6090295523:AAEyjwZD26AH_SRrG-u0j6a84BNMFOOSjkI/sendMessage?chat_id=6381937612

Signatures

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

Snake Keylogger payload 3 IoCs

resource	yara_rule
behavioral2/memory/4328-140-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral2/memory/4328-143-0x00000000059C0000-0x00000000059D0000-memory.dmp	family_snakekeylogger
behavioral2/memory/4328-145-0x00000000059C0000-0x00000000059D0000-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
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-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	04251452615625625.exe
Key opened	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	04251452615625625.exe
Key opened	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	04251452615625625.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
36	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4288 set thread context of 4328	4288	04251452615625625.exe	95

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4328	04251452615625625.exe
4328	04251452615625625.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4328	04251452615625625.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4288 wrote to memory of 4328	4288	04251452615625625.exe	95
PID 4288 wrote to memory of 4328	4288	04251452615625625.exe	95
PID 4288 wrote to memory of 4328	4288	04251452615625625.exe	95
PID 4288 wrote to memory of 4328	4288	04251452615625625.exe	95
PID 4288 wrote to memory of 4328	4288	04251452615625625.exe	95
PID 4288 wrote to memory of 4328	4288	04251452615625625.exe	95
PID 4288 wrote to memory of 4328	4288	04251452615625625.exe	95
PID 4288 wrote to memory of 4328	4288	04251452615625625.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	04251452615625625.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	04251452615625625.exe

C:\Users\Admin\AppData\Local\Temp\04251452615625625.exe
"C:\Users\Admin\AppData\Local\Temp\04251452615625625.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4288
- C:\Users\Admin\AppData\Local\Temp\04251452615625625.exe
  "C:\Users\Admin\AppData\Local\Temp\04251452615625625.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\04251452615625625.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/4288-133-0x0000000000500000-0x00000000005E6000-memory.dmp

Filesize
920KB

Download
memory/4288-134-0x0000000005570000-0x0000000005B14000-memory.dmp

Filesize
5.6MB

Download
memory/4288-135-0x0000000004FC0000-0x0000000005052000-memory.dmp

Filesize
584KB

Download
memory/4288-136-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/4288-137-0x0000000004F90000-0x0000000004F9A000-memory.dmp

Filesize
40KB

Download
memory/4288-138-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/4288-139-0x00000000084E0000-0x000000000857C000-memory.dmp

Filesize
624KB

Download
memory/4328-140-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4328-143-0x00000000059C0000-0x00000000059D0000-memory.dmp

Filesize
64KB

Download
memory/4328-144-0x0000000006B00000-0x0000000006CC2000-memory.dmp

Filesize
1.8MB

Download
memory/4328-145-0x00000000059C0000-0x00000000059D0000-memory.dmp

Filesize
64KB

Download

Analysis

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