limerat | 64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc

General

Target

64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe
Size

330KB
MD5

88157978da35d52fee44f25b3610aa60
SHA1

d67d981b38b82002f2f9e9e45c5c489368e8cda7
SHA256

64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc
SHA512

4a6bf3ecf6763d569fc26c8cae61b38c07f27594954cb2448ade77aa7ae584fc7ae118463d14826cffd2ec4d5ecd77fd04861b5ed98a77f752357cb9860c29b2
SSDEEP

6144:zK8lUvarEuKLH321cUx5zugbguHzYOi2Deq1qR1:zDEzSnbbg6l11q

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

Processes:

Windows Update.exeWindows Update.exe

pid	Process
4432	Windows Update.exe
3352	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

Processes:

64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 2 IoCs

Processes:

64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exeWindows Update.exe

description	pid	Process	procid_target
PID 3448 set thread context of 2988	3448	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	81
PID 4432 set thread context of 3352	4432	Windows Update.exe	85

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

Processes:

schtasks.exe

pid	Process
4648	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exeWindows Update.exeWindows Update.exe

description	pid	Process
Token: SeDebugPrivilege	3448	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe
Token: SeDebugPrivilege	4432	Windows Update.exe
Token: SeDebugPrivilege	3352	Windows Update.exe
Token: SeDebugPrivilege	3352	Windows Update.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exeWindows Update.exe

description	pid	Process	procid_target
PID 3448 wrote to memory of 2988	3448	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	81
PID 3448 wrote to memory of 2988	3448	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	81
PID 3448 wrote to memory of 2988	3448	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	81
PID 3448 wrote to memory of 2988	3448	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	81
PID 3448 wrote to memory of 2988	3448	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	81
PID 3448 wrote to memory of 2988	3448	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	81
PID 3448 wrote to memory of 2988	3448	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	81
PID 2988 wrote to memory of 4648	2988	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	82
PID 2988 wrote to memory of 4648	2988	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	82
PID 2988 wrote to memory of 4648	2988	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	82
PID 2988 wrote to memory of 4432	2988	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	84
PID 2988 wrote to memory of 4432	2988	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	84
PID 2988 wrote to memory of 4432	2988	64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe	84
PID 4432 wrote to memory of 3352	4432	Windows Update.exe	85
PID 4432 wrote to memory of 3352	4432	Windows Update.exe	85
PID 4432 wrote to memory of 3352	4432	Windows Update.exe	85
PID 4432 wrote to memory of 3352	4432	Windows Update.exe	85
PID 4432 wrote to memory of 3352	4432	Windows Update.exe	85
PID 4432 wrote to memory of 3352	4432	Windows Update.exe	85
PID 4432 wrote to memory of 3352	4432	Windows Update.exe	85

C:\Users\Admin\AppData\Local\Temp\64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe
"C:\Users\Admin\AppData\Local\Temp\64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3448
- C:\Users\Admin\AppData\Local\Temp\64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe
  "C:\Users\Admin\AppData\Local\Temp\64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:2988
- - 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:4648
- - 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 AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4432
  - - C:\Users\Admin\Windows\Windows Update.exe
      "C:\Users\Admin\Windows\Windows Update.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:3352

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\64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc.exe.log

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

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

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

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

Filesize
330KB

MD5
88157978da35d52fee44f25b3610aa60

SHA1
d67d981b38b82002f2f9e9e45c5c489368e8cda7

SHA256
64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc

SHA512
4a6bf3ecf6763d569fc26c8cae61b38c07f27594954cb2448ade77aa7ae584fc7ae118463d14826cffd2ec4d5ecd77fd04861b5ed98a77f752357cb9860c29b2

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

Filesize
330KB

MD5
88157978da35d52fee44f25b3610aa60

SHA1
d67d981b38b82002f2f9e9e45c5c489368e8cda7

SHA256
64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc

SHA512
4a6bf3ecf6763d569fc26c8cae61b38c07f27594954cb2448ade77aa7ae584fc7ae118463d14826cffd2ec4d5ecd77fd04861b5ed98a77f752357cb9860c29b2

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

Filesize
330KB

MD5
88157978da35d52fee44f25b3610aa60

SHA1
d67d981b38b82002f2f9e9e45c5c489368e8cda7

SHA256
64f96c98b66e34531a11f0ceba67916b5207cc0f7dbcda256c6ee3d9c5f528cc

SHA512
4a6bf3ecf6763d569fc26c8cae61b38c07f27594954cb2448ade77aa7ae584fc7ae118463d14826cffd2ec4d5ecd77fd04861b5ed98a77f752357cb9860c29b2

Download Submit
memory/2988-134-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2988-136-0x0000000005260000-0x00000000052FC000-memory.dmp

Filesize
624KB

Download
memory/2988-137-0x0000000005340000-0x00000000053A6000-memory.dmp

Filesize
408KB

Download
memory/2988-138-0x0000000005F20000-0x00000000064C4000-memory.dmp

Filesize
5.6MB

Download
memory/2988-133-0x0000000000000000-mapping.dmp

Download
memory/3352-143-0x0000000000000000-mapping.dmp

Download
memory/3448-132-0x0000000000330000-0x0000000000388000-memory.dmp

Filesize
352KB

Download
memory/4432-140-0x0000000000000000-mapping.dmp

Download
memory/4648-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads