limerat | 5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b

General

Target

5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe
Size

240KB
MD5

eac5ebfd214de0cf3a5459b647a7b2d5
SHA1

52f62f6d725049d191f453328cdae3f1f7334ee6
SHA256

5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b
SHA512

3e2978f6df4b3f0251dee2a7e9939fce2344e0af1c02810c7fcd1d31b5484fd2b2dd7203eef87ab8d2f2d8e55a9d9549252c256680c17f866f0f5af7c12f602e
SSDEEP

3072:Ou9DMR90Afc/Fnzwm/I/1WNWnhXEi2/oLaiTnYL83ejgu3nypr/7RBk4adLCorxt:VW9lfKzGSJiDPAF1ERO7Lk

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
1668	Windows Update.exe
380	Windows Update.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.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 4152 set thread context of 736	4152	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	84
PID 1668 set thread context of 380	1668	Windows Update.exe	94

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
3308	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	380	Windows Update.exe
Token: SeDebugPrivilege	380	Windows Update.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 736	4152	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	84
PID 4152 wrote to memory of 736	4152	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	84
PID 4152 wrote to memory of 736	4152	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	84
PID 4152 wrote to memory of 736	4152	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	84
PID 4152 wrote to memory of 736	4152	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	84
PID 4152 wrote to memory of 736	4152	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	84
PID 4152 wrote to memory of 736	4152	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	84
PID 736 wrote to memory of 3308	736	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	90
PID 736 wrote to memory of 3308	736	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	90
PID 736 wrote to memory of 3308	736	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	90
PID 736 wrote to memory of 1668	736	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	93
PID 736 wrote to memory of 1668	736	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	93
PID 736 wrote to memory of 1668	736	5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe	93
PID 1668 wrote to memory of 380	1668	Windows Update.exe	94
PID 1668 wrote to memory of 380	1668	Windows Update.exe	94
PID 1668 wrote to memory of 380	1668	Windows Update.exe	94
PID 1668 wrote to memory of 380	1668	Windows Update.exe	94
PID 1668 wrote to memory of 380	1668	Windows Update.exe	94
PID 1668 wrote to memory of 380	1668	Windows Update.exe	94
PID 1668 wrote to memory of 380	1668	Windows Update.exe	94

C:\Users\Admin\AppData\Local\Temp\5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe
"C:\Users\Admin\AppData\Local\Temp\5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Users\Admin\AppData\Local\Temp\5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe
  "C:\Users\Admin\AppData\Local\Temp\5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:736
- - 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:3308
- - C:\Users\Admin\Windows\Windows Update.exe
    "C:\Users\Admin\Windows\Windows Update.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1668
  - - C:\Users\Admin\Windows\Windows Update.exe
      "C:\Users\Admin\Windows\Windows Update.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Web Service

1

T1102

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Windows Update.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

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

Filesize
240KB

MD5
eac5ebfd214de0cf3a5459b647a7b2d5

SHA1
52f62f6d725049d191f453328cdae3f1f7334ee6

SHA256
5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b

SHA512
3e2978f6df4b3f0251dee2a7e9939fce2344e0af1c02810c7fcd1d31b5484fd2b2dd7203eef87ab8d2f2d8e55a9d9549252c256680c17f866f0f5af7c12f602e

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

Filesize
240KB

MD5
eac5ebfd214de0cf3a5459b647a7b2d5

SHA1
52f62f6d725049d191f453328cdae3f1f7334ee6

SHA256
5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b

SHA512
3e2978f6df4b3f0251dee2a7e9939fce2344e0af1c02810c7fcd1d31b5484fd2b2dd7203eef87ab8d2f2d8e55a9d9549252c256680c17f866f0f5af7c12f602e

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

Filesize
240KB

MD5
eac5ebfd214de0cf3a5459b647a7b2d5

SHA1
52f62f6d725049d191f453328cdae3f1f7334ee6

SHA256
5456e3d82f4f3ce27dec6cac9cd4794fb524ba42e4037a735032c24f8834df6b

SHA512
3e2978f6df4b3f0251dee2a7e9939fce2344e0af1c02810c7fcd1d31b5484fd2b2dd7203eef87ab8d2f2d8e55a9d9549252c256680c17f866f0f5af7c12f602e

Download Submit
memory/736-135-0x0000000005340000-0x00000000053DC000-memory.dmp

Filesize
624KB

Download
memory/736-137-0x00000000060D0000-0x0000000006674000-memory.dmp

Filesize
5.6MB

Download
memory/736-136-0x00000000052C0000-0x0000000005326000-memory.dmp

Filesize
408KB

Download
memory/736-134-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4152-132-0x0000000000270000-0x00000000002B2000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads