limerat | a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf

General

Target

a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe
Size

209KB
MD5

8f2b5ea332e3ccce22b109de0cfe4fd7
SHA1

8938199f8346c6a27a106bfae658017613d7f935
SHA256

a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf
SHA512

f1b04d1c264255deedc5f627b13279589b7ac06685ebfd1c90f670b8bbda450a1faab796fc3226180c790c0891eab0e286d2c533bfd252ed795b63e3086a0383
SSDEEP

3072:v2gawntv0gTmsqBSNAVk2ThBmbIenFqeWnKpAAKg6HvF:uFsvFCsqoNI/+FunKpAA6

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
IRj3SceatjDfweW/qMMw7g==
antivm
false
c2_url
https://pastebin.com/raw/Pzx225ZB
delay
3
download_payload
false
install
true
install_name
Audio Realtek Driver.exe
main_folder
AppData
pin_spread
true
sub_folder
\Audio Realtek Driver\
usb_spread
false

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe

description	pid	Process	procid_target
PID 2404 set thread context of 3080	2404	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	82

Drops file in Windows directory 1 IoCs

Processes:

dw20.exe

description	ioc	Process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

dw20.exe

description	pid	Process
Token: SeRestorePrivilege	3232	dw20.exe
Token: SeBackupPrivilege	3232	dw20.exe
Token: SeBackupPrivilege	3232	dw20.exe
Token: SeBackupPrivilege	3232	dw20.exe
Token: SeBackupPrivilege	3232	dw20.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exea14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe

description	pid	Process	procid_target
PID 2404 wrote to memory of 3080	2404	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	82
PID 2404 wrote to memory of 3080	2404	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	82
PID 2404 wrote to memory of 3080	2404	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	82
PID 2404 wrote to memory of 3080	2404	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	82
PID 2404 wrote to memory of 3080	2404	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	82
PID 2404 wrote to memory of 3080	2404	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	82
PID 2404 wrote to memory of 3080	2404	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	82
PID 3080 wrote to memory of 3232	3080	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	83
PID 3080 wrote to memory of 3232	3080	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	83
PID 3080 wrote to memory of 3232	3080	a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe	83

C:\Users\Admin\AppData\Local\Temp\a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe
"C:\Users\Admin\AppData\Local\Temp\a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Users\Admin\AppData\Local\Temp\a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe
  "C:\Users\Admin\AppData\Local\Temp\a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3080
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 288
    3⤵
    - Drops file in Windows directory
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:3232

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe.log

Filesize
128B

MD5
a5dcc7c9c08af7dddd82be5b036a4416

SHA1
4f998ca1526d199e355ffb435bae111a2779b994

SHA256
e24033ceec97fd03402b03acaaabd1d1e378e83bb1683afbccac760e00f8ead5

SHA512
56035de734836c0c39f0b48641c51c26adb6e79c6c65e23ca96603f71c95b8673e2ef853146e87efc899dd1878d0bbc2c82d91fbf0fce81c552048e986f9bb5a

Download Submit
memory/2404-136-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/3080-132-0x0000000000000000-mapping.dmp

Download
memory/3080-133-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3080-137-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/3080-138-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/3232-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads