snakekeylogger | a71527b4ac58f6f9c2f7649b0be7c7b6ddb327f35ad6520dc1013f4b52ef6d3f

General

Target

Purchase Order.exe
Size

772KB
MD5

92a40a60631e0cc736c95f08cee7e729
SHA1

270115ba8254e2875239d1919fc0048c551d6731
SHA256

5a2a58a5c9a50cda175b03b68636c5f68d7dcc73eb19311ceb2940dddc97654e
SHA512

779e8d1734d0fc532ca763da96c04fc1f96b70a2c2c1a673ac59076fa30f7fe46b07a047d4bb485ffffd50bf533d1513f246b1c21c0ad3be9a4fe48ec5a76871
SSDEEP

12288:pOyRb+fURnHb+Qv6HNbwVLvQNtNrGau2AFnZstWFgXqBAhUgd7LkgKFB02E73qr5:QyMMRHPv6tkVzQTuyWFTdEZ4kMRH

Score

10^/10

snakekeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7572469755:AAHCBLe3bEv-r8VSlR3NztVSSHz6JBpCC7s/sendMessage?chat_id=7207594974

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4528-11-0x0000000000400000-0x0000000000426000-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-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
24	checkip.dyndns.org
26	reallyfreegeoip.org
27	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4548 set thread context of 4528	4548	Purchase Order.exe	88

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

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4548	Purchase Order.exe
4548	Purchase Order.exe
4548	Purchase Order.exe
4528	Purchase Order.exe
4528	Purchase Order.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4548	Purchase Order.exe
Token: SeDebugPrivilege	4528	Purchase Order.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 4528	4548	Purchase Order.exe	88
PID 4548 wrote to memory of 4528	4548	Purchase Order.exe	88
PID 4548 wrote to memory of 4528	4548	Purchase Order.exe	88
PID 4548 wrote to memory of 4528	4548	Purchase Order.exe	88
PID 4548 wrote to memory of 4528	4548	Purchase Order.exe	88
PID 4548 wrote to memory of 4528	4548	Purchase Order.exe	88
PID 4548 wrote to memory of 4528	4548	Purchase Order.exe	88
PID 4548 wrote to memory of 4528	4548	Purchase Order.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4548
- C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order.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:4528

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

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

Filesize
1KB

MD5
400f1cc1a0a0ce1cdabda365ab3368ce

SHA1
1ecf683f14271d84f3b6063493dce00ff5f42075

SHA256
c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

SHA512
14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

Download Submit
memory/4528-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4528-20-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4528-19-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4528-18-0x00000000069F0000-0x0000000006BB2000-memory.dmp

Filesize
1.8MB

Download
memory/4528-17-0x00000000067D0000-0x0000000006820000-memory.dmp

Filesize
320KB

Download
memory/4528-16-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4528-15-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4548-5-0x0000000004D20000-0x0000000004D2A000-memory.dmp

Filesize
40KB

Download
memory/4548-9-0x0000000005560000-0x00000000055CA000-memory.dmp

Filesize
424KB

Download
memory/4548-10-0x0000000008E70000-0x0000000008F0C000-memory.dmp

Filesize
624KB

Download
memory/4548-8-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4548-7-0x000000007499E000-0x000000007499F000-memory.dmp

Filesize
4KB

Download
memory/4548-6-0x0000000007EC0000-0x0000000007EDE000-memory.dmp

Filesize
120KB

Download
memory/4548-14-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4548-0-0x000000007499E000-0x000000007499F000-memory.dmp

Filesize
4KB

Download
memory/4548-3-0x0000000007B10000-0x0000000007BA2000-memory.dmp

Filesize
584KB

Download
memory/4548-4-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4548-2-0x0000000007EE0000-0x0000000008484000-memory.dmp

Filesize
5.6MB

Download
memory/4548-1-0x00000000007F0000-0x00000000008B6000-memory.dmp

Filesize
792KB

Download

Analysis

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