snakekeylogger | e3c1ca2def13e63fbbb0ab64ee9d5831ea24ef23f0598ef7a89b6215328041c3

General

Target

tmp2r2bruzw.exe
Size

748KB
MD5

e831581bced8750ffada97258b002ead
SHA1

a49a29ebfe5e2fad0e051ce28c981d0169f1ea62
SHA256

e3c1ca2def13e63fbbb0ab64ee9d5831ea24ef23f0598ef7a89b6215328041c3
SHA512

7659d281b7751f22d7a1383887d53d6ded4e7d1bdc83c7bb71ffde0b2f1316ba31d81ea8eab8ee1be261a620c65dbb1d5e26dfcb2a737db21b3158dfea843cd4
SSDEEP

12288:wvSqYOE5WEgGpqmzV4uZ380dUxUPtAaesE1gqd1tw8:BcEj4Q80W8RedFx

Score

10^/10

snakekeylogger collection credential_access discovery keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7148398804:AAESLKl9fVODMrpM8H4Wkq1Zbm-83PcMLro/sendMessage?chat_id=2135869667

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2460-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2460-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2460-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2460-9-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2460-19-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

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
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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp2r2bruzw.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp2r2bruzw.exe
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp2r2bruzw.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
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1952 set thread context of 2460	1952	tmp2r2bruzw.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp2r2bruzw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp2r2bruzw.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2460	tmp2r2bruzw.exe
2460	tmp2r2bruzw.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	tmp2r2bruzw.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 2460	1952	tmp2r2bruzw.exe	30
PID 1952 wrote to memory of 2460	1952	tmp2r2bruzw.exe	30
PID 1952 wrote to memory of 2460	1952	tmp2r2bruzw.exe	30
PID 1952 wrote to memory of 2460	1952	tmp2r2bruzw.exe	30
PID 1952 wrote to memory of 2460	1952	tmp2r2bruzw.exe	30
PID 1952 wrote to memory of 2460	1952	tmp2r2bruzw.exe	30
PID 1952 wrote to memory of 2460	1952	tmp2r2bruzw.exe	30
PID 1952 wrote to memory of 2460	1952	tmp2r2bruzw.exe	30
PID 1952 wrote to memory of 2460	1952	tmp2r2bruzw.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp2r2bruzw.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp2r2bruzw.exe

C:\Users\Admin\AppData\Local\Temp\tmp2r2bruzw.exe
"C:\Users\Admin\AppData\Local\Temp\tmp2r2bruzw.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\tmp2r2bruzw.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp2r2bruzw.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1952-0-0x000000007407E000-0x000000007407F000-memory.dmp

Filesize
4KB

Download
memory/1952-1-0x00000000010B0000-0x0000000001172000-memory.dmp

Filesize
776KB

Download
memory/1952-2-0x0000000000880000-0x00000000008D4000-memory.dmp

Filesize
336KB

Download
memory/1952-4-0x0000000000C40000-0x0000000000C48000-memory.dmp

Filesize
32KB

Download
memory/1952-3-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/1952-23-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/1952-22-0x000000007407E000-0x000000007407F000-memory.dmp

Filesize
4KB

Download
memory/2460-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2460-13-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2460-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2460-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2460-5-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2460-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2460-20-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/2460-21-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/2460-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2460-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2460-24-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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