limerat | bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3

Analysis

max time kernel
151s
max time network
180s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
30-11-2022 15:05

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General

Target

bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe
Size

238KB
MD5

440d7a7357b48507cbf9857064638dfd
SHA1

fbf4d41cc343cb260d0c320ade3c1271959d6eba
SHA256

bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3
SHA512

ee709aa46f4506aa1ce26d0edcdbf9241749ed154e1a8ab2976b691f95469c8cdef168d59ad27773506e433debb0a28550f113f6bb5b7e1e12c994fcd2aa875c
SSDEEP

3072:zTZ5rlD8r5Yg3g7xnyfKUze1zF9Olhc7tmtpsJpQuTejgu3nypr/7Rioqz5HKd/z:zTyYg3AnySQcWlqi1ERio6q2U

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
IRj3SceatjDfweW/qMMw7g==
antivm
true
c2_url
https://pastebin.com/raw/p8Be8nNX
delay
3
download_payload
false
install
true
install_name
Windows Update.exe
main_folder
UserProfile
pin_spread
false
sub_folder
\Windows\
usb_spread
false

Signatures

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat

Executes dropped EXE 2 IoCs

pid	Process
1408	Windows Update.exe
1732	Windows Update.exe

Loads dropped DLL 2 IoCs

pid	Process
1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe
1408	Windows Update.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 1408 set thread context of 1732	1408	Windows Update.exe	32

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
1356	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	Windows Update.exe
Token: SeDebugPrivilege	1732	Windows Update.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 2040 wrote to memory of 1964	2040	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	27
PID 1964 wrote to memory of 1356	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	29
PID 1964 wrote to memory of 1356	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	29
PID 1964 wrote to memory of 1356	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	29
PID 1964 wrote to memory of 1356	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	29
PID 1964 wrote to memory of 1408	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	31
PID 1964 wrote to memory of 1408	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	31
PID 1964 wrote to memory of 1408	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	31
PID 1964 wrote to memory of 1408	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	31
PID 1964 wrote to memory of 1408	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	31
PID 1964 wrote to memory of 1408	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	31
PID 1964 wrote to memory of 1408	1964	bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe	31
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32
PID 1408 wrote to memory of 1732	1408	Windows Update.exe	32

C:\Users\Admin\AppData\Local\Temp\bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe
"C:\Users\Admin\AppData\Local\Temp\bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Local\Temp\bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe
  "C:\Users\Admin\AppData\Local\Temp\bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1964
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\Windows\Windows Update.exe'"
    3⤵
    - Creates scheduled task(s)
    PID:1356
- - C:\Users\Admin\Windows\Windows Update.exe
    "C:\Users\Admin\Windows\Windows Update.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1408
  - - C:\Users\Admin\Windows\Windows Update.exe
      "C:\Users\Admin\Windows\Windows Update.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:1732

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

C:\Users\Admin\Windows\Windows Update.exe

Filesize
238KB

MD5
440d7a7357b48507cbf9857064638dfd

SHA1
fbf4d41cc343cb260d0c320ade3c1271959d6eba

SHA256
bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3

SHA512
ee709aa46f4506aa1ce26d0edcdbf9241749ed154e1a8ab2976b691f95469c8cdef168d59ad27773506e433debb0a28550f113f6bb5b7e1e12c994fcd2aa875c

Download Submit
C:\Users\Admin\Windows\Windows Update.exe

Filesize
238KB

MD5
440d7a7357b48507cbf9857064638dfd

SHA1
fbf4d41cc343cb260d0c320ade3c1271959d6eba

SHA256
bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3

SHA512
ee709aa46f4506aa1ce26d0edcdbf9241749ed154e1a8ab2976b691f95469c8cdef168d59ad27773506e433debb0a28550f113f6bb5b7e1e12c994fcd2aa875c

Download Submit
C:\Users\Admin\Windows\Windows Update.exe

Filesize
238KB

MD5
440d7a7357b48507cbf9857064638dfd

SHA1
fbf4d41cc343cb260d0c320ade3c1271959d6eba

SHA256
bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3

SHA512
ee709aa46f4506aa1ce26d0edcdbf9241749ed154e1a8ab2976b691f95469c8cdef168d59ad27773506e433debb0a28550f113f6bb5b7e1e12c994fcd2aa875c

Download Submit
\Users\Admin\Windows\Windows Update.exe

Filesize
238KB

MD5
440d7a7357b48507cbf9857064638dfd

SHA1
fbf4d41cc343cb260d0c320ade3c1271959d6eba

SHA256
bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3

SHA512
ee709aa46f4506aa1ce26d0edcdbf9241749ed154e1a8ab2976b691f95469c8cdef168d59ad27773506e433debb0a28550f113f6bb5b7e1e12c994fcd2aa875c

Download Submit
\Users\Admin\Windows\Windows Update.exe

Filesize
238KB

MD5
440d7a7357b48507cbf9857064638dfd

SHA1
fbf4d41cc343cb260d0c320ade3c1271959d6eba

SHA256
bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3

SHA512
ee709aa46f4506aa1ce26d0edcdbf9241749ed154e1a8ab2976b691f95469c8cdef168d59ad27773506e433debb0a28550f113f6bb5b7e1e12c994fcd2aa875c

Download Submit
memory/1408-75-0x0000000000F40000-0x0000000000F82000-memory.dmp

Filesize
264KB

Download
memory/1732-90-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1732-88-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1732-85-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1964-56-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1964-63-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1964-57-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1964-70-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/1964-59-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1964-68-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1964-66-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1964-62-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/2040-54-0x0000000000EF0000-0x0000000000F32000-memory.dmp

Filesize
264KB

Download
memory/2040-55-0x0000000000630000-0x0000000000638000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads