Malware Analysis Report

2024-09-11 10:04

Sample ID 240322-3tn7rsdc6w
Target 2C2A5FFD16B2C07A378245BC4903AAA8.exe
SHA256 44f8f0b67907cb91d414a1c0cb33e74e42d201e05869129a9d1d4039dbfb0fe2
Tags
limerat rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

44f8f0b67907cb91d414a1c0cb33e74e42d201e05869129a9d1d4039dbfb0fe2

Threat Level: Known bad

The file 2C2A5FFD16B2C07A378245BC4903AAA8.exe was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Drops startup file

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-03-22 23:48

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-22 23:48

Reported

2024-03-22 23:51

Platform

win7-20240215-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe"

Signatures

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe

"C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe"

Network

N/A

Files

memory/2908-10-0x0000000000120000-0x0000000000124000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-22 23:48

Reported

2024-03-22 23:51

Platform

win10v2004-20240226-en

Max time kernel

157s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe"

Signatures

LimeRAT

rat limerat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\antiprimer.vbs C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe N/A

Executes dropped EXE

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

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5084 set thread context of 2720 N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1476 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe
PID 1476 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe
PID 1476 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe
PID 5084 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 5084 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 5084 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 5084 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe

"C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe"

C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe

"C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Users\Admin\AppData\Local\Temp\2C2A5FFD16B2C07A378245BC4903AAA8.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 61.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 172.67.34.170:443 pastebin.com tcp
US 8.8.8.8:53 170.34.67.172.in-addr.arpa udp
NL 91.92.253.74:14982 tcp
US 8.8.8.8:53 74.253.92.91.in-addr.arpa udp
US 8.8.8.8:53 45.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

memory/1476-10-0x0000000000E30000-0x0000000000E34000-memory.dmp

C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe

MD5 74a7456baaa11d40b05e220702fbaa6a
SHA1 2fec80abf575549f99e37351c55f6b638b95790e
SHA256 d9a401ad73cec79b9ad9489be39a45b8456b0a9f5952727cfc5053cb18f07527
SHA512 abd18f1410ba3633ce4cb3ccfc70a9ecc87e9efff34192f74002869e554c0ca8998600ef19194e1f7d040c467477e2d7697e0531d5edf1fc6726317df3350f7f

C:\Users\Admin\AppData\Local\Sheitan\antiprimer.exe

MD5 5f360d1a9529b04f7190d88efc103d98
SHA1 fc93e669dccfd3d59fb5de38ece88b6e47f7dfe0
SHA256 65c7a75bade6fb310b8b701980758cda47d5d9c2751a82a54de16465ffa5ba60
SHA512 ceebdb336e8b16a92e870020a7c1005c7edfba7a9684fae3c0d341ed3f51754eb2fa873d9a36e5948482aee4a7f530d4d3baf0bf2f70f0565cec697e2a1390f4

C:\Users\Admin\AppData\Local\Temp\Ramada

MD5 32be4d98c5de7245e96ec7e061fad889
SHA1 81c374db19a8a8fa7c7540c819c78419e2d215a2
SHA256 63c3db0eea414a6a465fcf05ab04338eab957e4f96bd6263c5e47d9113a6f521
SHA512 b16ff13986bbe0242aecad4b8523f19a660f1d528632c4ef70ca2d6c48a789cef9b0b97ce4a716569d7ffbc687e1679b6741eb5e721f564af97f4363a0b60708

C:\Users\Admin\AppData\Local\Temp\soliloquised

MD5 d44bf10e16997be0a563a9e5b82a9aa5
SHA1 1599413100d74c8b3784b41cc0ddcbcc8fc8cc79
SHA256 4e8977297ad9be48eb85074f5faf95c77d20c39b42cf835c97080b7d6a1c9835
SHA512 dc6b35cddbb599e0b3710688ce75ee3d22c29d8e075960a66522e1f224a594be4bb37efdfb8bff5fd7e4e1a29f0193ba72cea365b1ae4b2377444bfb53816c1d

memory/2720-28-0x0000000000400000-0x000000000040C000-memory.dmp

memory/2720-30-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/2720-29-0x00000000050A0000-0x000000000513C000-memory.dmp

memory/2720-31-0x0000000004FF0000-0x0000000005056000-memory.dmp

memory/2720-32-0x0000000004F70000-0x0000000004F80000-memory.dmp

memory/2720-33-0x0000000005E30000-0x00000000063D4000-memory.dmp

memory/2720-34-0x00000000066A0000-0x0000000006732000-memory.dmp

memory/2720-35-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/2720-36-0x0000000004F70000-0x0000000004F80000-memory.dmp

memory/2720-37-0x0000000007560000-0x000000000757E000-memory.dmp