limerat | 5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0

General

Target

5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe
Size

147KB
MD5

2b6e9f65f812cb58554ef8e64fc37943
SHA1

c4dff76fb2ed2519300bd163ea62151d9e332651
SHA256

5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0
SHA512

f63eba0d085d84bde238fa5635cde2bebcc965cd562e03f0aaaa81ddedbc8fc7f0b6d63530749b72a388d2fd22f8460c4f0355a2d626c27fe583c523d1d6d8c7
SSDEEP

3072:nz3gmOEzjQOM4rXiMrz7wuk730Xshb+jWi4nJG2FDzI:nTbBYOHLiM8T730jyHJG

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
IRj3SceatjDfweW/qMMw7g==
antivm
true
c2_url
https://pastebin.com/raw/Jpq3By4t
delay
3
download_payload
false
install
true
install_name
Audio Realtek Driver.exe
main_folder
AppData
pin_spread
false
sub_folder
\Audio Realtek Driver\
usb_spread
false

Signatures

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

Executes dropped EXE 2 IoCs

Processes:

Audio Realtek Driver.exeAudio Realtek Driver.exe

pid	Process
3712	Audio Realtek Driver.exe
4060	Audio Realtek Driver.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:

5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 2 IoCs

Processes:

5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exeAudio Realtek Driver.exe

description	pid	Process	procid_target
PID 4904 set thread context of 2900	4904	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	81
PID 3712 set thread context of 4060	3712	Audio Realtek Driver.exe	88

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
2636	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Audio Realtek Driver.exe

description	pid	Process
Token: SeDebugPrivilege	4060	Audio Realtek Driver.exe
Token: SeDebugPrivilege	4060	Audio Realtek Driver.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exeAudio Realtek Driver.exe

description	pid	Process	procid_target
PID 4904 wrote to memory of 2900	4904	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	81
PID 4904 wrote to memory of 2900	4904	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	81
PID 4904 wrote to memory of 2900	4904	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	81
PID 4904 wrote to memory of 2900	4904	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	81
PID 4904 wrote to memory of 2900	4904	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	81
PID 4904 wrote to memory of 2900	4904	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	81
PID 4904 wrote to memory of 2900	4904	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	81
PID 2900 wrote to memory of 2636	2900	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	85
PID 2900 wrote to memory of 2636	2900	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	85
PID 2900 wrote to memory of 2636	2900	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	85
PID 2900 wrote to memory of 3712	2900	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	87
PID 2900 wrote to memory of 3712	2900	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	87
PID 2900 wrote to memory of 3712	2900	5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe	87
PID 3712 wrote to memory of 4060	3712	Audio Realtek Driver.exe	88
PID 3712 wrote to memory of 4060	3712	Audio Realtek Driver.exe	88
PID 3712 wrote to memory of 4060	3712	Audio Realtek Driver.exe	88
PID 3712 wrote to memory of 4060	3712	Audio Realtek Driver.exe	88
PID 3712 wrote to memory of 4060	3712	Audio Realtek Driver.exe	88
PID 3712 wrote to memory of 4060	3712	Audio Realtek Driver.exe	88
PID 3712 wrote to memory of 4060	3712	Audio Realtek Driver.exe	88

C:\Users\Admin\AppData\Local\Temp\5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe
"C:\Users\Admin\AppData\Local\Temp\5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Users\Admin\AppData\Local\Temp\5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe
  "C:\Users\Admin\AppData\Local\Temp\5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\Audio Realtek Driver\Audio Realtek Driver.exe'"
    3⤵
    - Creates scheduled task(s)
    PID:2636
- - C:\Users\Admin\AppData\Roaming\Audio Realtek Driver\Audio Realtek Driver.exe
    "C:\Users\Admin\AppData\Roaming\Audio Realtek Driver\Audio Realtek Driver.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3712
  - - C:\Users\Admin\AppData\Roaming\Audio Realtek Driver\Audio Realtek Driver.exe
      "C:\Users\Admin\AppData\Roaming\Audio Realtek Driver\Audio Realtek Driver.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:4060

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0.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\Audio Realtek Driver.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Roaming\Audio Realtek Driver\Audio Realtek Driver.exe

Filesize
147KB

MD5
2b6e9f65f812cb58554ef8e64fc37943

SHA1
c4dff76fb2ed2519300bd163ea62151d9e332651

SHA256
5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0

SHA512
f63eba0d085d84bde238fa5635cde2bebcc965cd562e03f0aaaa81ddedbc8fc7f0b6d63530749b72a388d2fd22f8460c4f0355a2d626c27fe583c523d1d6d8c7

Download Submit
C:\Users\Admin\AppData\Roaming\Audio Realtek Driver\Audio Realtek Driver.exe

Filesize
147KB

MD5
2b6e9f65f812cb58554ef8e64fc37943

SHA1
c4dff76fb2ed2519300bd163ea62151d9e332651

SHA256
5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0

SHA512
f63eba0d085d84bde238fa5635cde2bebcc965cd562e03f0aaaa81ddedbc8fc7f0b6d63530749b72a388d2fd22f8460c4f0355a2d626c27fe583c523d1d6d8c7

Download Submit
C:\Users\Admin\AppData\Roaming\Audio Realtek Driver\Audio Realtek Driver.exe

Filesize
147KB

MD5
2b6e9f65f812cb58554ef8e64fc37943

SHA1
c4dff76fb2ed2519300bd163ea62151d9e332651

SHA256
5864c4d4d644e97124735542eefad82cee2db1bc1626d2d0c719c779d1e005d0

SHA512
f63eba0d085d84bde238fa5635cde2bebcc965cd562e03f0aaaa81ddedbc8fc7f0b6d63530749b72a388d2fd22f8460c4f0355a2d626c27fe583c523d1d6d8c7

Download Submit
memory/2636-139-0x0000000000000000-mapping.dmp

Download
memory/2900-136-0x0000000004CE0000-0x0000000004D7C000-memory.dmp

Filesize
624KB

Download
memory/2900-137-0x0000000004DA0000-0x0000000004E06000-memory.dmp

Filesize
408KB

Download
memory/2900-138-0x0000000005980000-0x0000000005F24000-memory.dmp

Filesize
5.6MB

Download
memory/2900-134-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2900-133-0x0000000000000000-mapping.dmp

Download
memory/3712-140-0x0000000000000000-mapping.dmp

Download
memory/4060-143-0x0000000000000000-mapping.dmp

Download
memory/4904-132-0x0000000000460000-0x000000000048C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads