snakekeylogger | 414ba539e3dbcea3e5d9618e66b71524bb66e7b4574caff6d4da5f061734bc3a

General

Target

PO TYER6555556.exe
Size

662KB
MD5

515fcae923fcf7925bc1762c71f6e384
SHA1

4a73794f447193d371b6d188c209e58c1fdb6309
SHA256

414ba539e3dbcea3e5d9618e66b71524bb66e7b4574caff6d4da5f061734bc3a
SHA512

6ef3aef00f34cc01b856634940a74bc0c73d8d2f0de73cf00a69f857842a3c167c7149389df994d33a980197fbb0d561056faefae6a7ba6f4b8635cc21adeb41
SSDEEP

12288:9bSJgvmn1ik/BN6v630WD0aky/vby9OYkC7Irzo5e2vSpRAt3l:9bSJgvmn1ikCv63XyyXZxC74z6edi3l

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5818680343:AAGVJsfIHcopySiifMCdAaFCv-ICp2_Yo_M/sendMessage?chat_id=5765702254

Signatures

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

Snake Keylogger payload 2 IoCs

resource	yara_rule
behavioral2/memory/4460-140-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral2/memory/4460-145-0x0000000005920000-0x0000000005930000-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-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO TYER6555556.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO TYER6555556.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO TYER6555556.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
41	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 4460	4800	PO TYER6555556.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4460	PO TYER6555556.exe
4460	PO TYER6555556.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4460	PO TYER6555556.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 4460	4800	PO TYER6555556.exe	91
PID 4800 wrote to memory of 4460	4800	PO TYER6555556.exe	91
PID 4800 wrote to memory of 4460	4800	PO TYER6555556.exe	91
PID 4800 wrote to memory of 4460	4800	PO TYER6555556.exe	91
PID 4800 wrote to memory of 4460	4800	PO TYER6555556.exe	91
PID 4800 wrote to memory of 4460	4800	PO TYER6555556.exe	91
PID 4800 wrote to memory of 4460	4800	PO TYER6555556.exe	91
PID 4800 wrote to memory of 4460	4800	PO TYER6555556.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO TYER6555556.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO TYER6555556.exe

C:\Users\Admin\AppData\Local\Temp\PO TYER6555556.exe
"C:\Users\Admin\AppData\Local\Temp\PO TYER6555556.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Users\Admin\AppData\Local\Temp\PO TYER6555556.exe
  "C:\Users\Admin\AppData\Local\Temp\PO TYER6555556.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4460

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO TYER6555556.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/4460-140-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4460-143-0x0000000005920000-0x0000000005930000-memory.dmp

Filesize
64KB

Download
memory/4460-144-0x00000000068A0000-0x0000000006A62000-memory.dmp

Filesize
1.8MB

Download
memory/4460-145-0x0000000005920000-0x0000000005930000-memory.dmp

Filesize
64KB

Download
memory/4800-133-0x0000000000930000-0x00000000009DC000-memory.dmp

Filesize
688KB

Download
memory/4800-134-0x0000000005A40000-0x0000000005FE4000-memory.dmp

Filesize
5.6MB

Download
memory/4800-135-0x0000000005380000-0x0000000005412000-memory.dmp

Filesize
584KB

Download
memory/4800-136-0x0000000005420000-0x000000000542A000-memory.dmp

Filesize
40KB

Download
memory/4800-137-0x0000000005560000-0x0000000005570000-memory.dmp

Filesize
64KB

Download
memory/4800-138-0x0000000005560000-0x0000000005570000-memory.dmp

Filesize
64KB

Download
memory/4800-139-0x0000000007000000-0x000000000709C000-memory.dmp

Filesize
624KB

Download

Analysis

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