limerat | b4f0d107e95fa6f3aaae96d0341f0f0ad90b2dfa1fe7d9e04903eb2354a39ded

Analysis

max time kernel
149s
max time network
121s
platform
windows10_x64
resource
win10v20210408
submitted
22/06/2021, 13:17

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General

Target
567225e63d26da94a21764c2eeb3f656.exe
Size 1.1MB
Sample210622-k2n6qawlyj
SHA256 b4f0d107e95fa6f3aaae96d0341f0f0ad90b2dfa1fe7d9e04903eb2354a39ded
MD5 567225e63d26da94a21764c2eeb3f656
SHA1 a59f68653a471800ea9cd454eb4871b31c9cd192
SHA512 7df3f533bac6013ce09128310216a22cd5f8d513ecc4baf16f487d8b7b26ce0e4e67452c7d584c37fe99e0bf5517b06704af08f51cb89ea1de4a57dc696a5071
MD5 SHA1 SHA512

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Wallets

1LLUV51XQKqq94X965Cc6uGPXeZEGSqCdV

Attributes

aes_key
NYANCAT
antivm
false
c2_url
https://pastebin.com/raw/4pByu6u5
delay
3
download_payload
false
install
false
install_name
Wservices.exe
main_folder
AppData
pin_spread
false
sub_folder
\
usb_spread
true

Signatures

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 996 set thread context of 1548	996	567225e63d26da94a21764c2eeb3f656.exe	81

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3856	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
996	567225e63d26da94a21764c2eeb3f656.exe
996	567225e63d26da94a21764c2eeb3f656.exe
996	567225e63d26da94a21764c2eeb3f656.exe
1548	567225e63d26da94a21764c2eeb3f656.exe
1548	567225e63d26da94a21764c2eeb3f656.exe
1548	567225e63d26da94a21764c2eeb3f656.exe
1548	567225e63d26da94a21764c2eeb3f656.exe
1548	567225e63d26da94a21764c2eeb3f656.exe
1548	567225e63d26da94a21764c2eeb3f656.exe
1548	567225e63d26da94a21764c2eeb3f656.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	996	567225e63d26da94a21764c2eeb3f656.exe
Token: SeDebugPrivilege	1548	567225e63d26da94a21764c2eeb3f656.exe
Token: SeDebugPrivilege	1548	567225e63d26da94a21764c2eeb3f656.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 3856	996	567225e63d26da94a21764c2eeb3f656.exe	78
PID 996 wrote to memory of 3856	996	567225e63d26da94a21764c2eeb3f656.exe	78
PID 996 wrote to memory of 3856	996	567225e63d26da94a21764c2eeb3f656.exe	78
PID 996 wrote to memory of 492	996	567225e63d26da94a21764c2eeb3f656.exe	80
PID 996 wrote to memory of 492	996	567225e63d26da94a21764c2eeb3f656.exe	80
PID 996 wrote to memory of 492	996	567225e63d26da94a21764c2eeb3f656.exe	80
PID 996 wrote to memory of 1548	996	567225e63d26da94a21764c2eeb3f656.exe	81
PID 996 wrote to memory of 1548	996	567225e63d26da94a21764c2eeb3f656.exe	81
PID 996 wrote to memory of 1548	996	567225e63d26da94a21764c2eeb3f656.exe	81
PID 996 wrote to memory of 1548	996	567225e63d26da94a21764c2eeb3f656.exe	81
PID 996 wrote to memory of 1548	996	567225e63d26da94a21764c2eeb3f656.exe	81
PID 996 wrote to memory of 1548	996	567225e63d26da94a21764c2eeb3f656.exe	81
PID 996 wrote to memory of 1548	996	567225e63d26da94a21764c2eeb3f656.exe	81

C:\Users\Admin\AppData\Local\Temp\567225e63d26da94a21764c2eeb3f656.exe
"C:\Users\Admin\AppData\Local\Temp\567225e63d26da94a21764c2eeb3f656.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:996
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZvWAdimvGBUdre" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5266.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3856
- C:\Users\Admin\AppData\Local\Temp\567225e63d26da94a21764c2eeb3f656.exe
  "C:\Users\Admin\AppData\Local\Temp\567225e63d26da94a21764c2eeb3f656.exe"
  2⤵
  PID:492
- C:\Users\Admin\AppData\Local\Temp\567225e63d26da94a21764c2eeb3f656.exe
  "C:\Users\Admin\AppData\Local\Temp\567225e63d26da94a21764c2eeb3f656.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1548

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Web Service

T1102

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

memory/996-123-0x00000000065A0000-0x0000000006617000-memory.dmp

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memory/996-116-0x00000000055A0000-0x00000000055A1000-memory.dmp

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memory/996-118-0x00000000056A0000-0x00000000056A1000-memory.dmp

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memory/996-119-0x0000000005530000-0x0000000005531000-memory.dmp

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memory/996-120-0x00000000058A0000-0x00000000058A1000-memory.dmp

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memory/996-121-0x0000000005580000-0x0000000005590000-memory.dmp

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memory/996-117-0x0000000005BA0000-0x0000000005BA1000-memory.dmp

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memory/996-122-0x00000000056A0000-0x0000000005B9E000-memory.dmp

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memory/996-124-0x0000000008AE0000-0x0000000008B1D000-memory.dmp

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memory/996-114-0x0000000000C00000-0x0000000000C01000-memory.dmp

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memory/1548-127-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/1548-132-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

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memory/1548-133-0x0000000004D00000-0x0000000004D9C000-memory.dmp

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memory/1548-136-0x0000000005760000-0x0000000005778000-memory.dmp

Download