Malware Analysis Report

2025-08-10 14:57

Sample ID 241112-n6733sscqq
Target a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe
SHA256 a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713
Tags
discovery persistence privilege_escalation
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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
8/10

SHA256

a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713

Threat Level: Likely malicious

The file a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe was found to be: Likely malicious.

Malicious Activity Summary

discovery persistence privilege_escalation

Event Triggered Execution: AppInit DLLs

Executes dropped EXE

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-12 12:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 12:01

Reported

2024-11-12 12:04

Platform

win7-20241010-en

Max time kernel

66s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe"

Signatures

Event Triggered Execution: AppInit DLLs

persistence privilege_escalation

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\unidtrd.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\unidtrd.exe C:\Users\Admin\AppData\Local\Temp\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe N/A
File created C:\PROGRA~3\Mozilla\soforsm.dll C:\PROGRA~3\Mozilla\unidtrd.exe 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\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\PROGRA~3\Mozilla\unidtrd.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe N/A
N/A N/A C:\PROGRA~3\Mozilla\unidtrd.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2928 wrote to memory of 2668 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\unidtrd.exe
PID 2928 wrote to memory of 2668 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\unidtrd.exe
PID 2928 wrote to memory of 2668 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\unidtrd.exe
PID 2928 wrote to memory of 2668 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\unidtrd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe

"C:\Users\Admin\AppData\Local\Temp\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {160D17E6-8CEC-4B9A-AB3A-3B2BF6D3A739} S-1-5-18:NT AUTHORITY\System:Service:

C:\PROGRA~3\Mozilla\unidtrd.exe

C:\PROGRA~3\Mozilla\unidtrd.exe -esjphrh

Network

N/A

Files

memory/1680-1-0x0000000000260000-0x00000000002BC000-memory.dmp

memory/1680-0-0x0000000000400000-0x000000000045B000-memory.dmp

memory/1680-2-0x0000000000400000-0x000000000045B000-memory.dmp

memory/1680-4-0x0000000000400000-0x000000000045B000-memory.dmp

memory/1680-5-0x0000000000260000-0x00000000002BC000-memory.dmp

C:\PROGRA~3\Mozilla\unidtrd.exe

MD5 d094a23a8a6c3b513f6eef486cec0b2e
SHA1 a6a48e3bfde647ec329401fb472bd660746e0817
SHA256 1312988de393da8d66367c5619a40c7819db8ccea875eefd474dd7f3a28f26b0
SHA512 5a019d25bafa3c9b70028c986b8e37912837e84cbd60685a072a10478dc34fe319f03b8f9405fd658d842509307d601ffe0e1e52e08d032b034ce99ea93a81ee

memory/2668-8-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2668-9-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2668-10-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2668-12-0x0000000000400000-0x000000000045B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 12:01

Reported

2024-11-12 12:04

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe"

Signatures

Event Triggered Execution: AppInit DLLs

persistence privilege_escalation

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\fchgaxm.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\fchgaxm.exe C:\Users\Admin\AppData\Local\Temp\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe N/A
File created C:\PROGRA~3\Mozilla\jwkknvd.dll C:\PROGRA~3\Mozilla\fchgaxm.exe 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\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\PROGRA~3\Mozilla\fchgaxm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe

"C:\Users\Admin\AppData\Local\Temp\a7590a5f4406b774b2471fc27b66545565f1ab939f6a388169f780f29eb8b713.exe"

C:\PROGRA~3\Mozilla\fchgaxm.exe

C:\PROGRA~3\Mozilla\fchgaxm.exe -pjrnomj

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 67.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 100.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 68.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/4544-0-0x0000000000400000-0x000000000045B000-memory.dmp

memory/4544-1-0x00000000020B0000-0x000000000210C000-memory.dmp

memory/4544-2-0x0000000000400000-0x000000000045B000-memory.dmp

C:\ProgramData\Mozilla\fchgaxm.exe

MD5 b83921370fa4f096fb2be920a98c18c7
SHA1 b6e562c779a6247bc04e86b10bfdcafe91dbd417
SHA256 a41c56a8533b7d66dcd53a70f9c6d6b31d935a3b21b31b8ad7b117df34b1246d
SHA512 98a33e4637b306b59457a51086a088a03876791e8bb4e16835e813716d83a6fa548b4f6a3dd308153c7218eebcf8849ceb09ec15ca2e99208fa5dcdb80538108

memory/4544-6-0x0000000000400000-0x000000000045B000-memory.dmp

memory/4544-8-0x00000000020B0000-0x000000000210C000-memory.dmp

memory/2944-9-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2944-10-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2944-12-0x0000000000400000-0x000000000045B000-memory.dmp