Malware Analysis Report

2025-01-22 08:49

Sample ID 241027-rwhl8azajj
Target ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N
SHA256 ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7
Tags
discovery persistence spyware stealer upx
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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
7/10

SHA256

ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7

Threat Level: Shows suspicious behavior

The file ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery persistence spyware stealer upx

Reads user/profile data of web browsers

Adds Run key to start application

UPX packed file

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-27 14:32

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-27 14:32

Reported

2024-10-27 14:34

Platform

win10v2004-20241007-en

Max time kernel

100s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe"

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe

"C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 880 -ip 880

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 880 -s 376

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 100.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 69.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-27 14:32

Reported

2024-10-27 14:34

Platform

win7-20240903-en

Max time kernel

110s

Max time network

62s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe"

Signatures

Reads user/profile data of web browsers

spyware stealer

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe" C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe N/A

UPX packed file

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1324 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe
PID 1324 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe
PID 1324 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe
PID 1324 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe
PID 1324 wrote to memory of 840 N/A C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe
PID 1324 wrote to memory of 840 N/A C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe
PID 1324 wrote to memory of 840 N/A C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe
PID 1324 wrote to memory of 840 N/A C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe

"C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe"

C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe

C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming

C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe

C:\Users\Admin\AppData\Local\Temp\ac55eeefc71bea54c7f325d28c3ee21d7ed6cc5c64200d0ea925e24bad46dad7N.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp

Network

Country Destination Domain Proto
US 8.8.8.8:53 imgg.dt00.net udp
US 8.8.8.8:53 greatecontent.com udp
US 8.8.8.8:53 coolresourses.com udp
US 8.8.8.8:53 www.google.com udp
GB 172.217.169.36:80 www.google.com tcp
GB 172.217.169.36:80 www.google.com tcp
N/A 127.0.0.1:62949 tcp

Files

memory/1324-1-0x0000000000400000-0x0000000000443000-memory.dmp

memory/1324-2-0x0000000000400000-0x0000000000443000-memory.dmp

memory/2044-12-0x0000000000400000-0x0000000000443000-memory.dmp

memory/2044-14-0x0000000000400000-0x0000000000443000-memory.dmp

memory/1324-15-0x0000000000400000-0x0000000000443000-memory.dmp

C:\Users\Admin\AppData\Roaming\C212.6D0

MD5 ecdb45d81c31c6fb5c9ffcacc43a1bd3
SHA1 33d2932639c2d23b90a90bdfec544f036e592242
SHA256 4c3a20e193ae5533e8fe48c11c0c58df658b2c97070ffa92f0f713a56ac33e98
SHA512 9bb2478a228e3c080dd0a376ca55ff9c283e5f574b71f2e0c534186a91ad11e4b7f84101cb54360efd4e2726153b7a58185be9395e110ada4288f9301085960b

memory/1324-74-0x0000000000400000-0x0000000000443000-memory.dmp

memory/840-76-0x0000000000400000-0x0000000000443000-memory.dmp

memory/840-77-0x0000000000400000-0x0000000000443000-memory.dmp

C:\Users\Admin\AppData\Roaming\C212.6D0

MD5 60b507271498344688ad7048ebb904c8
SHA1 b2fb2401974ff90fd358b69e465c7bf73ca12dd4
SHA256 2665096fbd904fdd2958fd7c3170714502938e7e5c0c9687f712adc91d17dd8a
SHA512 2d50d47dcbed2a1fb5b9a463808ac7a92d45ce2d022d78e25bcc7ba50024ae5f66831517f78a15eeda331dbd21cd13af9dcbb453c73f4292a8d6be26c2358197

C:\Users\Admin\AppData\Roaming\C212.6D0

MD5 7b0c7313380ee935341f1b1f284a6432
SHA1 accd5525b370442688205804caa8ae2b3d0950cc
SHA256 31aeab2912a5d5e358b3df9c8f6dd8595b8ff04876c5b9e9b744e1983eb81e75
SHA512 517c05184153fa0822d6210120714b2d40e59ab72078572dd6a96f75f4119dc3bc29a4b615cc3b1fd40d969a50b9363df73982b742446a60eafddc2c032c8ee7

memory/1324-177-0x0000000000400000-0x0000000000443000-memory.dmp