Malware Analysis Report

2024-09-11 10:04

Sample ID 240328-bbndzahh83
Target eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e
SHA256 eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e
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

eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e

Threat Level: Known bad

The file eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e was found to be: Known bad.

Malicious Activity Summary

limerat rat

Detects executables packed with unregistered version of .NET Reactor

LimeRAT

Detects executables packed with unregistered version of .NET Reactor

.NET Reactor proctector

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Suspicious use of AdjustPrivilegeToken

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

2024-03-28 00:58

Signatures

Detects executables packed with unregistered version of .NET Reactor

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

.NET Reactor proctector

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

2024-03-28 00:58

Reported

2024-03-28 01:00

Platform

win7-20240220-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe"

Signatures

LimeRAT

rat limerat

Detects executables packed with unregistered version of .NET Reactor

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

.NET Reactor proctector

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe

"C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 104.20.68.143:443 pastebin.com tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp

Files

memory/1728-0-0x0000000000F30000-0x0000000000F5E000-memory.dmp

memory/1728-1-0x0000000074500000-0x0000000074BEE000-memory.dmp

memory/1728-2-0x0000000004E00000-0x0000000004E40000-memory.dmp

memory/1728-3-0x0000000000440000-0x0000000000441000-memory.dmp

memory/1728-4-0x0000000074500000-0x0000000074BEE000-memory.dmp

memory/1728-5-0x0000000004E00000-0x0000000004E40000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 29f65ba8e88c063813cc50a4ea544e93
SHA1 05a7040d5c127e68c25d81cc51271ffb8bef3568
SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512 e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

C:\Users\Admin\AppData\Local\Temp\TarA646.tmp

MD5 435a9ac180383f9fa094131b173a2f7b
SHA1 76944ea657a9db94f9a4bef38f88c46ed4166983
SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA512 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-28 00:58

Reported

2024-03-28 01:01

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe"

Signatures

LimeRAT

rat limerat

Detects executables packed with unregistered version of .NET Reactor

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

.NET Reactor proctector

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe

"C:\Users\Admin\AppData\Local\Temp\eb2cb43109e3828c2bd8031e2581234c9bb99ac01a4d0e525c15b8ddab4dfc4e.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2808 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 201.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.67.143:443 pastebin.com tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 143.67.20.104.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 84.117.19.2.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 25.134.221.88.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.187.202:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 202.187.250.142.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
N/A 127.0.0.1:1177 tcp
US 8.8.8.8:53 209.143.182.52.in-addr.arpa udp
N/A 127.0.0.1:1177 tcp

Files

memory/4784-0-0x0000000074DC0000-0x0000000075570000-memory.dmp

memory/4784-1-0x0000000000920000-0x000000000094E000-memory.dmp

memory/4784-2-0x00000000053D0000-0x00000000053E0000-memory.dmp

memory/4784-3-0x0000000005250000-0x0000000005251000-memory.dmp

memory/4784-4-0x00000000053E0000-0x000000000547C000-memory.dmp

memory/4784-5-0x0000000074DC0000-0x0000000075570000-memory.dmp

memory/4784-6-0x00000000053D0000-0x00000000053E0000-memory.dmp

memory/4784-7-0x0000000005680000-0x00000000056E6000-memory.dmp

memory/4784-8-0x0000000006040000-0x00000000065E4000-memory.dmp