snakekeylogger | 96bfa7096fb76234a5774f70dc444d719c7553ac83db00fdbb04c1eec318d4c4

General

Target

z17Mz7zumpwTUMRxyS.exe
Size

678KB
MD5

337574f09ff0a772aedbd6f7c2064496
SHA1

f24b5b9369763cc23758407fa1729294750d8e5e
SHA256

96bfa7096fb76234a5774f70dc444d719c7553ac83db00fdbb04c1eec318d4c4
SHA512

2cf83e21895266cf05e65bc4934c09c8aba59fe9a1db62b07ec2dd4e463d5a4555d46c1e1ae74447c7c5e120885d72027ec763fb32634ba63441ef9e519d3d26
SSDEEP

12288:tn9Inte+7jOOIQ7vCSfm5F28BaaiR+fzszuSFtQhU1atc2/Q4AyrrRPdw:tK7tIS8QaikfgqSFtcUUa2o4JPd

Score

10^/10

snakekeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7733074716:AAHPqUDZNcrQPzH_G03x5ppIOnkxZuz-Nyk/sendMessage?chat_id=7337843299

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/3944-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger 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 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	z17Mz7zumpwTUMRxyS.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	z17Mz7zumpwTUMRxyS.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	z17Mz7zumpwTUMRxyS.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
35	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3092 set thread context of 3944	3092	z17Mz7zumpwTUMRxyS.exe	95

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	z17Mz7zumpwTUMRxyS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	z17Mz7zumpwTUMRxyS.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3092	z17Mz7zumpwTUMRxyS.exe
3092	z17Mz7zumpwTUMRxyS.exe
3092	z17Mz7zumpwTUMRxyS.exe
3092	z17Mz7zumpwTUMRxyS.exe
3092	z17Mz7zumpwTUMRxyS.exe
3092	z17Mz7zumpwTUMRxyS.exe
3092	z17Mz7zumpwTUMRxyS.exe
3092	z17Mz7zumpwTUMRxyS.exe
3092	z17Mz7zumpwTUMRxyS.exe
3944	z17Mz7zumpwTUMRxyS.exe
3944	z17Mz7zumpwTUMRxyS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3092	z17Mz7zumpwTUMRxyS.exe
Token: SeDebugPrivilege	3944	z17Mz7zumpwTUMRxyS.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 3944	3092	z17Mz7zumpwTUMRxyS.exe	95
PID 3092 wrote to memory of 3944	3092	z17Mz7zumpwTUMRxyS.exe	95
PID 3092 wrote to memory of 3944	3092	z17Mz7zumpwTUMRxyS.exe	95
PID 3092 wrote to memory of 3944	3092	z17Mz7zumpwTUMRxyS.exe	95
PID 3092 wrote to memory of 3944	3092	z17Mz7zumpwTUMRxyS.exe	95
PID 3092 wrote to memory of 3944	3092	z17Mz7zumpwTUMRxyS.exe	95
PID 3092 wrote to memory of 3944	3092	z17Mz7zumpwTUMRxyS.exe	95
PID 3092 wrote to memory of 3944	3092	z17Mz7zumpwTUMRxyS.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	z17Mz7zumpwTUMRxyS.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	z17Mz7zumpwTUMRxyS.exe

C:\Users\Admin\AppData\Local\Temp\z17Mz7zumpwTUMRxyS.exe
"C:\Users\Admin\AppData\Local\Temp\z17Mz7zumpwTUMRxyS.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Users\Admin\AppData\Local\Temp\z17Mz7zumpwTUMRxyS.exe
  "C:\Users\Admin\AppData\Local\Temp\z17Mz7zumpwTUMRxyS.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:3944

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\z17Mz7zumpwTUMRxyS.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3092-4-0x00000000051A0000-0x00000000051AA000-memory.dmp

Filesize
40KB

Download
memory/3092-3-0x00000000050C0000-0x0000000005152000-memory.dmp

Filesize
584KB

Download
memory/3092-10-0x00000000028F0000-0x0000000002958000-memory.dmp

Filesize
416KB

Download
memory/3092-9-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3092-6-0x0000000005290000-0x000000000532C000-memory.dmp

Filesize
624KB

Download
memory/3092-5-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3092-7-0x0000000005610000-0x000000000562C000-memory.dmp

Filesize
112KB

Download
memory/3092-8-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/3092-15-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3092-2-0x0000000005670000-0x0000000005C14000-memory.dmp

Filesize
5.6MB

Download
memory/3092-0-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/3092-1-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/3944-14-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3944-19-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3944-16-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3944-17-0x0000000006580000-0x00000000065D0000-memory.dmp

Filesize
320KB

Download
memory/3944-18-0x00000000067A0000-0x0000000006962000-memory.dmp

Filesize
1.8MB

Download
memory/3944-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

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