Malware Analysis Report

2024-09-11 10:04

Sample ID 240325-pmv5vafd53
Target de02ba99f65d07c4973b33fec5aefdac
SHA256 05f0ad4df75e687b4a188f34e31a60afb0a772d32e51f6e77f62ec484e7cf35e
Tags
limerat persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

05f0ad4df75e687b4a188f34e31a60afb0a772d32e51f6e77f62ec484e7cf35e

Threat Level: Known bad

The file de02ba99f65d07c4973b33fec5aefdac was found to be: Known bad.

Malicious Activity Summary

limerat persistence rat

LimeRAT

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Adds Run key to start application

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-03-25 12:27

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-25 12:27

Reported

2024-03-25 12:29

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe"

Signatures

LimeRAT

rat limerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Wservices.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Wservices.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
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" C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4992 set thread context of 4904 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2224 wrote to memory of 948 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe
PID 2224 wrote to memory of 948 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe
PID 2224 wrote to memory of 948 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe
PID 2224 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 2224 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 2224 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 4992 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 4992 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 4992 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 4992 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 4992 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 4992 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 4992 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe

Processes

C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe

"C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe"

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"

C:\Users\Admin\AppData\Roaming\Wservices.exe

"C:\Users\Admin\AppData\Roaming\Wservices.exe"

C:\Users\Admin\AppData\Roaming\Wservices.exe

"C:\Users\Admin\AppData\Roaming\Wservices.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 179.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 192.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 33.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 204.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 191.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 199.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 50.134.221.88.in-addr.arpa udp

Files

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

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

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

C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe

MD5 5b7cbfc8d8bc22798ee4fc4aa4b03e3b
SHA1 76f643b3f67f76f4182ef18e43e298e2e8570044
SHA256 35bcbae8dd3191cf58c48618d0cc43fb8fee8493e7c872d7742b4d499c383af9
SHA512 85228be9bc801d412bab150f3238c95390e18ab5f3a88bbc2406a40818e7c4482e77462b4a302be78075b1b631d6ac4a5939b8040d3742d3b822361642f796bd

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

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

C:\Users\Admin\AppData\Roaming\Wservices.exe

MD5 de02ba99f65d07c4973b33fec5aefdac
SHA1 54419bd1e07a8e3ab393c55cf55570bc3fe2b526
SHA256 05f0ad4df75e687b4a188f34e31a60afb0a772d32e51f6e77f62ec484e7cf35e
SHA512 c38740af611109ebae7552045e4b1d88909840d54c91ad585adba52b2d36be806fde3f84c1cd18c086debe995ef5475faf9b53614ebe83fe56825c97a877d6d8

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

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

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

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

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

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Wservices.exe.log

MD5 e07efe3f1e4fcc39483a46d0644e1750
SHA1 083566e513d8090982a8f2d2c57864f7e5eea721
SHA256 d35da5dbc639e94852448d93722de5260388abf8a0a6b80d947d8acf02209617
SHA512 e29fac6efce55130598dd9ca0be18e2934d8ed417087848f4c80c1754312f1dae2eb0fc3e85e58aa11abde23a221bdf8f6b80df3a9acad4891626f667f05b474

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

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

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-25 12:27

Reported

2024-03-25 12:29

Platform

win7-20240221-en

Max time kernel

129s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Wservices.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Wservices.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wservices.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Wservices.exe" C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1612 set thread context of 580 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1704 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe
PID 1704 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe
PID 1704 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe
PID 1704 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe
PID 1704 wrote to memory of 1612 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1704 wrote to memory of 1612 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1704 wrote to memory of 1612 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1704 wrote to memory of 1612 N/A C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1612 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1612 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1612 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1612 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1612 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1612 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1612 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe
PID 1612 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\Wservices.exe C:\Users\Admin\AppData\Roaming\Wservices.exe

Processes

C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe

"C:\Users\Admin\AppData\Local\Temp\de02ba99f65d07c4973b33fec5aefdac.exe"

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"

C:\Users\Admin\AppData\Roaming\Wservices.exe

"C:\Users\Admin\AppData\Roaming\Wservices.exe"

C:\Users\Admin\AppData\Roaming\Wservices.exe

"C:\Users\Admin\AppData\Roaming\Wservices.exe"

Network

N/A

Files

memory/1704-0-0x0000000000400000-0x000000000059C000-memory.dmp

memory/1704-1-0x00000000741A0000-0x000000007488E000-memory.dmp

\Users\Admin\AppData\Local\Temp\TeraBIT Virus Maker 3.1 (1).exe

MD5 5b7cbfc8d8bc22798ee4fc4aa4b03e3b
SHA1 76f643b3f67f76f4182ef18e43e298e2e8570044
SHA256 35bcbae8dd3191cf58c48618d0cc43fb8fee8493e7c872d7742b4d499c383af9
SHA512 85228be9bc801d412bab150f3238c95390e18ab5f3a88bbc2406a40818e7c4482e77462b4a302be78075b1b631d6ac4a5939b8040d3742d3b822361642f796bd

memory/1704-13-0x00000000741A0000-0x000000007488E000-memory.dmp

\Users\Admin\AppData\Roaming\Wservices.exe

MD5 de02ba99f65d07c4973b33fec5aefdac
SHA1 54419bd1e07a8e3ab393c55cf55570bc3fe2b526
SHA256 05f0ad4df75e687b4a188f34e31a60afb0a772d32e51f6e77f62ec484e7cf35e
SHA512 c38740af611109ebae7552045e4b1d88909840d54c91ad585adba52b2d36be806fde3f84c1cd18c086debe995ef5475faf9b53614ebe83fe56825c97a877d6d8

memory/1612-22-0x00000000741A0000-0x000000007488E000-memory.dmp

memory/1704-21-0x00000000741A0000-0x000000007488E000-memory.dmp

memory/1612-23-0x00000000741A0000-0x000000007488E000-memory.dmp

memory/1612-24-0x0000000004B00000-0x0000000004B40000-memory.dmp

memory/1612-25-0x0000000000740000-0x0000000000758000-memory.dmp

memory/580-26-0x0000000000400000-0x000000000040C000-memory.dmp

memory/580-28-0x0000000000400000-0x000000000040C000-memory.dmp

memory/580-30-0x0000000000400000-0x000000000040C000-memory.dmp

memory/580-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/580-34-0x0000000000400000-0x000000000040C000-memory.dmp

memory/580-37-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1612-38-0x00000000741A0000-0x000000007488E000-memory.dmp

memory/580-40-0x0000000000400000-0x000000000040C000-memory.dmp

memory/580-41-0x0000000074120000-0x000000007480E000-memory.dmp