limerat | 0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
30/05/2022, 01:07

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General

Target
0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe
Size 125KB
Sample220530-bgt4pscedr
SHA256 0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e
MD5 cdcb8d03e87665854688fc9988bf4345
SHA1 d749dfbf1418a8628382f9a808854eb1b36c83d0
SHA512 6a60dbe438c55bfa99c5b4c7f9ed484d6fbc55f325551d0547355f8bb500df6025c8b4e32187f1f321fa13cce4685167f037763c9a93f92f498ddbe91b916619
MD5 SHA1 SHA512

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
pogiako123
antivm
true
c2_url
https://pastebin.com/raw/NvPAsz1f
delay
3
download_payload
false
install
true
install_name
licenseemu.exe
main_folder
AppData
pin_spread
true
sub_folder
\ tofu\
usb_spread
true

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
2516	licenseemu.exe
3220	licenseemu.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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	licenseemu.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	licenseemu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3764 set thread context of 2024	3764	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	81
PID 2516 set thread context of 3220	2516	licenseemu.exe	86

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
836	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3220	licenseemu.exe
Token: SeDebugPrivilege	3220	licenseemu.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3764 wrote to memory of 2024	3764	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	81
PID 3764 wrote to memory of 2024	3764	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	81
PID 3764 wrote to memory of 2024	3764	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	81
PID 3764 wrote to memory of 2024	3764	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	81
PID 3764 wrote to memory of 2024	3764	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	81
PID 3764 wrote to memory of 2024	3764	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	81
PID 3764 wrote to memory of 2024	3764	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	81
PID 2024 wrote to memory of 836	2024	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	82
PID 2024 wrote to memory of 836	2024	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	82
PID 2024 wrote to memory of 836	2024	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	82
PID 2024 wrote to memory of 2516	2024	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	85
PID 2024 wrote to memory of 2516	2024	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	85
PID 2024 wrote to memory of 2516	2024	0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe	85
PID 2516 wrote to memory of 3220	2516	licenseemu.exe	86
PID 2516 wrote to memory of 3220	2516	licenseemu.exe	86
PID 2516 wrote to memory of 3220	2516	licenseemu.exe	86
PID 2516 wrote to memory of 3220	2516	licenseemu.exe	86
PID 2516 wrote to memory of 3220	2516	licenseemu.exe	86
PID 2516 wrote to memory of 3220	2516	licenseemu.exe	86
PID 2516 wrote to memory of 3220	2516	licenseemu.exe	86

C:\Users\Admin\AppData\Local\Temp\0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe
"C:\Users\Admin\AppData\Local\Temp\0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3764
- C:\Users\Admin\AppData\Local\Temp\0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe
  "C:\Users\Admin\AppData\Local\Temp\0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe"
  2⤵
  - Checks computer location settings
  - Maps connected drives based on registry
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\ tofu\licenseemu.exe'"
    3⤵
    - Creates scheduled task(s)
    PID:836
- - C:\Users\Admin\AppData\Roaming\ tofu\licenseemu.exe
    "C:\Users\Admin\AppData\Roaming\ tofu\licenseemu.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2516
  - - C:\Users\Admin\AppData\Roaming\ tofu\licenseemu.exe
      "C:\Users\Admin\AppData\Roaming\ tofu\licenseemu.exe"
      4⤵
      Executes dropped EXE
      Maps connected drives based on registry
      Suspicious use of AdjustPrivilegeToken
      PID:3220

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e.exe.log
Size 617B
SHA256 4b2747d4a45ae359c415f11d2a2d9e09e6a036aad39b40e284850603b64bbc98
MD5 47504b42411e2c23666d08795adae488
SHA1 92ba780125e2fcedc6223478504aa501adf95c06
SHA512 a2d33cb21ec121b9f857c81df3992da216859f5df69cc8da9edbd91eeb21f45b7ac79459d0c6bc08f09bc33684dfff62a20feddd13d5367ad717095ac85fe9c1
MD5 SHA1 SHA512

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licenseemu.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\licenseemu.exe.log
Size 617B
SHA256 4b2747d4a45ae359c415f11d2a2d9e09e6a036aad39b40e284850603b64bbc98
MD5 47504b42411e2c23666d08795adae488
SHA1 92ba780125e2fcedc6223478504aa501adf95c06
SHA512 a2d33cb21ec121b9f857c81df3992da216859f5df69cc8da9edbd91eeb21f45b7ac79459d0c6bc08f09bc33684dfff62a20feddd13d5367ad717095ac85fe9c1
MD5 SHA1 SHA512

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licenseemu.exe

Path C:\Users\Admin\AppData\Roaming\ tofu\licenseemu.exe
Size 125KB
SHA256 0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e
MD5 cdcb8d03e87665854688fc9988bf4345
SHA1 d749dfbf1418a8628382f9a808854eb1b36c83d0
SHA512 6a60dbe438c55bfa99c5b4c7f9ed484d6fbc55f325551d0547355f8bb500df6025c8b4e32187f1f321fa13cce4685167f037763c9a93f92f498ddbe91b916619
SSDEEP 3072:TKg321sTFpwI4y+RugKTZX1jyuT06xJfxb:L2UwI45FKTlFyu0mf
MD5 SHA1 SHA512 SSDEEP

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licenseemu.exe

Path C:\Users\Admin\AppData\Roaming\ tofu\licenseemu.exe
Size 125KB
SHA256 0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e
MD5 cdcb8d03e87665854688fc9988bf4345
SHA1 d749dfbf1418a8628382f9a808854eb1b36c83d0
SHA512 6a60dbe438c55bfa99c5b4c7f9ed484d6fbc55f325551d0547355f8bb500df6025c8b4e32187f1f321fa13cce4685167f037763c9a93f92f498ddbe91b916619
SSDEEP 3072:TKg321sTFpwI4y+RugKTZX1jyuT06xJfxb:L2UwI45FKTlFyu0mf
MD5 SHA1 SHA512 SSDEEP

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licenseemu.exe

Path C:\Users\Admin\AppData\Roaming\ tofu\licenseemu.exe
Size 125KB
SHA256 0c0f27f2c4435b5bcf675c56d2d716c6364435d5f2415db8e291326c14da2f9e
MD5 cdcb8d03e87665854688fc9988bf4345
SHA1 d749dfbf1418a8628382f9a808854eb1b36c83d0
SHA512 6a60dbe438c55bfa99c5b4c7f9ed484d6fbc55f325551d0547355f8bb500df6025c8b4e32187f1f321fa13cce4685167f037763c9a93f92f498ddbe91b916619
SSDEEP 3072:TKg321sTFpwI4y+RugKTZX1jyuT06xJfxb:L2UwI45FKTlFyu0mf
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2024-136-0x00000000050D0000-0x0000000005136000-memory.dmp

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memory/2024-134-0x0000000000400000-0x000000000040A000-memory.dmp

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memory/3764-130-0x00000000003E0000-0x0000000000408000-memory.dmp

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memory/3764-132-0x00000000055B0000-0x0000000005B54000-memory.dmp

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memory/3764-131-0x0000000004E40000-0x0000000004EDC000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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