limerat | a491a0d38b7f90a19b5fea4beb3dd65468517cd424024ea9bbc18524835fc6f7

General

Target

cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe
Size

1.1MB
MD5

cd348d8f8a74c9ceba525ccbf26a7e70
SHA1

55a371874bf3b68925a9c98fe91aba703aec0bc6
SHA256

a491a0d38b7f90a19b5fea4beb3dd65468517cd424024ea9bbc18524835fc6f7
SHA512

0ce3ba5abd2a4dd3a6d523fffbdc83fc634ffaccf338b3a2ad7677f0d2cfe17da7c94bce8715ce2ceff75b0283ff339fff61ac8ca6a4953bbcf7cb6fa67b96a7
SSDEEP

24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM250:/h+ZkldoPK8Ya971XjFtA0

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Wallets

1JBKLGyE6AnRGvk92A8x3m8qmXfh3fcEty

Attributes

aes_key
nulled
antivm
true
c2_url
https://pastebin.com/raw/cXuQ0V20
delay
3
download_payload
false
install
false
install_name
Winservices.exe
main_folder
AppData
pin_spread
false
sub_folder
\
usb_spread
true

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/cXuQ0V20
download_payload
false
install
false
pin_spread
false
usb_spread
false

Signatures

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat
Executes dropped EXE 3 IoCs

Processes:

sdchange.exesdchange.exesdchange.exe

pid process

2884 sdchange.exe
2192 sdchange.exe
1520 sdchange.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

pid	process
2884	sdchange.exe
2192	sdchange.exe
1520	sdchange.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	RegAsm.exe

AutoIT Executable 4 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
C:\Users\Admin\secinit\sdchange.exe	autoit_exe
C:\Users\Admin\secinit\sdchange.exe	autoit_exe
C:\Users\Admin\secinit\sdchange.exe	autoit_exe
C:\Users\Admin\secinit\sdchange.exe	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exesdchange.exesdchange.exesdchange.exe

description	pid	process	target process
PID 1272 set thread context of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 2884 set thread context of 2856	2884	sdchange.exe	RegAsm.exe
PID 2192 set thread context of 1744	2192	sdchange.exe	RegAsm.exe
PID 1520 set thread context of 844	1520	sdchange.exe	RegAsm.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid process

2932 schtasks.exe
1556 schtasks.exe
2616 schtasks.exe
2372 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2668 RegAsm.exe
Token: SeDebugPrivilege 2668 RegAsm.exe

pid	process
2932	schtasks.exe
1556	schtasks.exe
2616	schtasks.exe
2372	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	2668	RegAsm.exe
Token: SeDebugPrivilege	2668	RegAsm.exe

Suspicious use of WriteProcessMemory 60 IoCs

Processes:

cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exetaskeng.exesdchange.exesdchange.exesdchange.exe

description	pid	process	target process
PID 1272 wrote to memory of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 1272 wrote to memory of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 1272 wrote to memory of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 1272 wrote to memory of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 1272 wrote to memory of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 1272 wrote to memory of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 1272 wrote to memory of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 1272 wrote to memory of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 1272 wrote to memory of 2668	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	RegAsm.exe
PID 1272 wrote to memory of 2616	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	schtasks.exe
PID 1272 wrote to memory of 2616	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	schtasks.exe
PID 1272 wrote to memory of 2616	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	schtasks.exe
PID 1272 wrote to memory of 2616	1272	cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe	schtasks.exe
PID 3012 wrote to memory of 2884	3012	taskeng.exe	sdchange.exe
PID 3012 wrote to memory of 2884	3012	taskeng.exe	sdchange.exe
PID 3012 wrote to memory of 2884	3012	taskeng.exe	sdchange.exe
PID 3012 wrote to memory of 2884	3012	taskeng.exe	sdchange.exe
PID 2884 wrote to memory of 2856	2884	sdchange.exe	RegAsm.exe
PID 2884 wrote to memory of 2856	2884	sdchange.exe	RegAsm.exe
PID 2884 wrote to memory of 2856	2884	sdchange.exe	RegAsm.exe
PID 2884 wrote to memory of 2856	2884	sdchange.exe	RegAsm.exe
PID 2884 wrote to memory of 2856	2884	sdchange.exe	RegAsm.exe
PID 2884 wrote to memory of 2856	2884	sdchange.exe	RegAsm.exe
PID 2884 wrote to memory of 2856	2884	sdchange.exe	RegAsm.exe
PID 2884 wrote to memory of 2856	2884	sdchange.exe	RegAsm.exe
PID 2884 wrote to memory of 2856	2884	sdchange.exe	RegAsm.exe
PID 2884 wrote to memory of 2372	2884	sdchange.exe	schtasks.exe
PID 2884 wrote to memory of 2372	2884	sdchange.exe	schtasks.exe
PID 2884 wrote to memory of 2372	2884	sdchange.exe	schtasks.exe
PID 2884 wrote to memory of 2372	2884	sdchange.exe	schtasks.exe
PID 3012 wrote to memory of 2192	3012	taskeng.exe	sdchange.exe
PID 3012 wrote to memory of 2192	3012	taskeng.exe	sdchange.exe
PID 3012 wrote to memory of 2192	3012	taskeng.exe	sdchange.exe
PID 3012 wrote to memory of 2192	3012	taskeng.exe	sdchange.exe
PID 2192 wrote to memory of 1744	2192	sdchange.exe	RegAsm.exe
PID 2192 wrote to memory of 1744	2192	sdchange.exe	RegAsm.exe
PID 2192 wrote to memory of 1744	2192	sdchange.exe	RegAsm.exe
PID 2192 wrote to memory of 1744	2192	sdchange.exe	RegAsm.exe
PID 2192 wrote to memory of 1744	2192	sdchange.exe	RegAsm.exe
PID 2192 wrote to memory of 1744	2192	sdchange.exe	RegAsm.exe
PID 2192 wrote to memory of 1744	2192	sdchange.exe	RegAsm.exe
PID 2192 wrote to memory of 1744	2192	sdchange.exe	RegAsm.exe
PID 2192 wrote to memory of 1744	2192	sdchange.exe	RegAsm.exe
PID 2192 wrote to memory of 2932	2192	sdchange.exe	schtasks.exe
PID 2192 wrote to memory of 2932	2192	sdchange.exe	schtasks.exe
PID 2192 wrote to memory of 2932	2192	sdchange.exe	schtasks.exe
PID 2192 wrote to memory of 2932	2192	sdchange.exe	schtasks.exe
PID 3012 wrote to memory of 1520	3012	taskeng.exe	sdchange.exe
PID 3012 wrote to memory of 1520	3012	taskeng.exe	sdchange.exe
PID 3012 wrote to memory of 1520	3012	taskeng.exe	sdchange.exe
PID 3012 wrote to memory of 1520	3012	taskeng.exe	sdchange.exe
PID 1520 wrote to memory of 844	1520	sdchange.exe	RegAsm.exe
PID 1520 wrote to memory of 844	1520	sdchange.exe	RegAsm.exe
PID 1520 wrote to memory of 844	1520	sdchange.exe	RegAsm.exe
PID 1520 wrote to memory of 844	1520	sdchange.exe	RegAsm.exe
PID 1520 wrote to memory of 844	1520	sdchange.exe	RegAsm.exe
PID 1520 wrote to memory of 844	1520	sdchange.exe	RegAsm.exe
PID 1520 wrote to memory of 844	1520	sdchange.exe	RegAsm.exe
PID 1520 wrote to memory of 844	1520	sdchange.exe	RegAsm.exe
PID 1520 wrote to memory of 844	1520	sdchange.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe
"C:\Users\Admin\AppData\Local\Temp\cd348d8f8a74c9ceba525ccbf26a7e70_exe32.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2668
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
  2⤵
  - Creates scheduled task(s)
  PID:2616

C:\Windows\system32\taskeng.exe
taskeng.exe {E72994B2-E666-48E1-8875-FFFB2DECCE1B} S-1-5-21-3849525425-30183055-657688904-1000:KGPMNUDG\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\secinit\sdchange.exe
  C:\Users\Admin\secinit\sdchange.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2884
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    PID:2856
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
    3⤵
    - Creates scheduled task(s)
    PID:2372
- C:\Users\Admin\secinit\sdchange.exe
  C:\Users\Admin\secinit\sdchange.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    PID:1744
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
    3⤵
    - Creates scheduled task(s)
    PID:2932
- C:\Users\Admin\secinit\sdchange.exe
  C:\Users\Admin\secinit\sdchange.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1520
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    PID:844
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
    3⤵
    - Creates scheduled task(s)
    PID:1556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Cab959E.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar95DF.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
C:\Users\Admin\secinit\sdchange.exe

Filesize
1.1MB

MD5
c8f07cb7fa1c83889d4371b1336f44e3

SHA1
29be028194364313274169b439b9fce3819bcfdd

SHA256
7c323a91e4c38f1bb5b657b887893acee245841b7cdd213051ea349a0db30973

SHA512
edfb14a97618140f50738c943bfd73f43ce47a8afb41486b2d14d1d10ac7bd16c606f9a70c358071592b7c31bb9c2a9b2ee9e87f85cca40d33ed87bd2860117a

Download Submit
C:\Users\Admin\secinit\sdchange.exe

Filesize
1.1MB

MD5
c8f07cb7fa1c83889d4371b1336f44e3

SHA1
29be028194364313274169b439b9fce3819bcfdd

SHA256
7c323a91e4c38f1bb5b657b887893acee245841b7cdd213051ea349a0db30973

SHA512
edfb14a97618140f50738c943bfd73f43ce47a8afb41486b2d14d1d10ac7bd16c606f9a70c358071592b7c31bb9c2a9b2ee9e87f85cca40d33ed87bd2860117a

Download Submit
C:\Users\Admin\secinit\sdchange.exe

Filesize
1.1MB

MD5
c8f07cb7fa1c83889d4371b1336f44e3

SHA1
29be028194364313274169b439b9fce3819bcfdd

SHA256
7c323a91e4c38f1bb5b657b887893acee245841b7cdd213051ea349a0db30973

SHA512
edfb14a97618140f50738c943bfd73f43ce47a8afb41486b2d14d1d10ac7bd16c606f9a70c358071592b7c31bb9c2a9b2ee9e87f85cca40d33ed87bd2860117a

Download Submit
C:\Users\Admin\secinit\sdchange.exe

Filesize
1.1MB

MD5
c8f07cb7fa1c83889d4371b1336f44e3

SHA1
29be028194364313274169b439b9fce3819bcfdd

SHA256
7c323a91e4c38f1bb5b657b887893acee245841b7cdd213051ea349a0db30973

SHA512
edfb14a97618140f50738c943bfd73f43ce47a8afb41486b2d14d1d10ac7bd16c606f9a70c358071592b7c31bb9c2a9b2ee9e87f85cca40d33ed87bd2860117a

Download Submit
memory/844-80-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/844-79-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/1272-0-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/1744-69-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/1744-68-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-8-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2668-12-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-11-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-7-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2668-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2668-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2668-2-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2856-23-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2856-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-58-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads