limerat | 05f0ad4df75e687b4a188f34e31a60afb0a772d32e51f6e77f62ec484e7cf35e

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2024, 12:27

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General

Target
de02ba99f65d07c4973b33fec5aefdac.exe
Size 1.6MB
Sample240325-pmv5vafd53
SHA256 05f0ad4df75e687b4a188f34e31a60afb0a772d32e51f6e77f62ec484e7cf35e
MD5 de02ba99f65d07c4973b33fec5aefdac
SHA1 54419bd1e07a8e3ab393c55cf55570bc3fe2b526
SHA512 c38740af611109ebae7552045e4b1d88909840d54c91ad585adba52b2d36be806fde3f84c1cd18c086debe995ef5475faf9b53614ebe83fe56825c97a877d6d8
SSDEEP 49152:ReKvWKlH8SM3ShGiSTZdXTZdHXTZdXTZ:
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

limerat persistence rat

Malware Config

Extracted

Family

limerat

Wallets

3Qus18px7doBsKbzeHGBmnanWuPS4S3tAn

Attributes

aes_key
7aXx4CiaQxg8Py3gI
antivm
true
c2_url
https://pastebin.com/raw/ZJvAZBza
delay
60
download_payload
false
install
true
install_name
csrss.exe
main_folder
Temp
pin_spread
true
sub_folder
\
usb_spread
true

Signatures

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

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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	de02ba99f65d07c4973b33fec5aefdac.exe

Executes dropped EXE 3 IoCs

pid	Process
948	TeraBIT Virus Maker 3.1 (1).exe
4992	Wservices.exe
4904	Wservices.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wservices.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Wservices.exe"	de02ba99f65d07c4973b33fec5aefdac.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4992 set thread context of 4904	4992	Wservices.exe	115

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
948	TeraBIT Virus Maker 3.1 (1).exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 948	2224	de02ba99f65d07c4973b33fec5aefdac.exe	93
PID 2224 wrote to memory of 948	2224	de02ba99f65d07c4973b33fec5aefdac.exe	93
PID 2224 wrote to memory of 948	2224	de02ba99f65d07c4973b33fec5aefdac.exe	93
PID 2224 wrote to memory of 4992	2224	de02ba99f65d07c4973b33fec5aefdac.exe	106
PID 2224 wrote to memory of 4992	2224	de02ba99f65d07c4973b33fec5aefdac.exe	106
PID 2224 wrote to memory of 4992	2224	de02ba99f65d07c4973b33fec5aefdac.exe	106
PID 4992 wrote to memory of 4904	4992	Wservices.exe	115
PID 4992 wrote to memory of 4904	4992	Wservices.exe	115
PID 4992 wrote to memory of 4904	4992	Wservices.exe	115
PID 4992 wrote to memory of 4904	4992	Wservices.exe	115
PID 4992 wrote to memory of 4904	4992	Wservices.exe	115
PID 4992 wrote to memory of 4904	4992	Wservices.exe	115
PID 4992 wrote to memory of 4904	4992	Wservices.exe	115

C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe
"C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe
  "C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:948
- C:\Users\Admin\AppData\Roaming\Wservices.exe
  "C:\Users\Admin\AppData\Roaming\Wservices.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4992
- - C:\Users\Admin\AppData\Roaming\Wservices.exe
    "C:\Users\Admin\AppData\Roaming\Wservices.exe"
    3⤵
    - Executes dropped EXE
    PID:4904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Wservices.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Wservices.exe.log
Size 617B
SHA256 d35da5dbc639e94852448d93722de5260388abf8a0a6b80d947d8acf02209617
MD5 e07efe3f1e4fcc39483a46d0644e1750
SHA1 083566e513d8090982a8f2d2c57864f7e5eea721
SHA512 e29fac6efce55130598dd9ca0be18e2934d8ed417087848f4c80c1754312f1dae2eb0fc3e85e58aa11abde23a221bdf8f6b80df3a9acad4891626f667f05b474
MD5 SHA1 SHA512

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TeraBIT Virus Maker 3.1 (1).exe

Path C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe
Size 676KB
SHA256 35bcbae8dd3191cf58c48618d0cc43fb8fee8493e7c872d7742b4d499c383af9
MD5 5b7cbfc8d8bc22798ee4fc4aa4b03e3b
SHA1 76f643b3f67f76f4182ef18e43e298e2e8570044
SHA512 85228be9bc801d412bab150f3238c95390e18ab5f3a88bbc2406a40818e7c4482e77462b4a302be78075b1b631d6ac4a5939b8040d3742d3b822361642f796bd
SSDEEP 6144:sWgO3aZ6xOpxXeEmCNVYNk2WH3SrF3P0tG5vfxzcpCz6MyQoW10WBEYfCKR+ahuF:aeEmCNVYyWP0Cfx268cFfD+CcS4
MD5 SHA1 SHA512 SSDEEP

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Wservices.exe

Path C:\Users\Admin\AppData\Roaming\Wservices.exe
Size 1.6MB
SHA256 05f0ad4df75e687b4a188f34e31a60afb0a772d32e51f6e77f62ec484e7cf35e
MD5 de02ba99f65d07c4973b33fec5aefdac
SHA1 54419bd1e07a8e3ab393c55cf55570bc3fe2b526
SHA512 c38740af611109ebae7552045e4b1d88909840d54c91ad585adba52b2d36be806fde3f84c1cd18c086debe995ef5475faf9b53614ebe83fe56825c97a877d6d8
SSDEEP 49152:ReKvWKlH8SM3ShGiSTZdXTZdHXTZdXTZ:
MD5 SHA1 SHA512 SSDEEP

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memory/2224-0-0x0000000000400000-0x000000000059C000-memory.dmp

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memory/2224-1-0x0000000074580000-0x0000000074D30000-memory.dmp

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memory/2224-2-0x0000000004A80000-0x0000000004B1C000-memory.dmp

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memory/2224-16-0x0000000074580000-0x0000000074D30000-memory.dmp

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memory/2224-17-0x0000000005630000-0x0000000005BD4000-memory.dmp

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memory/2224-31-0x0000000074580000-0x0000000074D30000-memory.dmp

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memory/4904-35-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4904-40-0x0000000074580000-0x0000000074D30000-memory.dmp

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memory/4904-41-0x0000000074580000-0x0000000074D30000-memory.dmp

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memory/4992-33-0x0000000004B40000-0x0000000004B50000-memory.dmp

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memory/4992-34-0x0000000004840000-0x0000000004858000-memory.dmp

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memory/4992-32-0x0000000074580000-0x0000000074D30000-memory.dmp

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memory/4992-30-0x0000000074580000-0x0000000074D30000-memory.dmp

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memory/4992-39-0x0000000074580000-0x0000000074D30000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads