Malware Analysis Report

2025-08-05 17:02

Sample ID 240107-ya4e5acfgj
Target a79c347cc0f264cc37d2c203a804ac58.exe
SHA256 ca83832bf8e83ac9a97a01e589435b4666efa33d5f2f7f54b89dd58363e4a264
Tags
persistence
score
10/10

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
10/10

SHA256

ca83832bf8e83ac9a97a01e589435b4666efa33d5f2f7f54b89dd58363e4a264

Threat Level: Known bad

The file a79c347cc0f264cc37d2c203a804ac58.exe was found to be: Known bad.

Malicious Activity Summary

persistence

Modifies WinLogon for persistence

Drops file in System32 directory

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-07 19:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-07 19:35

Reported

2024-01-07 19:39

Platform

win7-20231215-en

Max time kernel

162s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe

"C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2884 -s 128

Network

N/A

Files

memory/2884-0-0x00000000001C0000-0x00000000001C2000-memory.dmp

memory/2884-1-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2884-3-0x00000000001D0000-0x00000000001E0000-memory.dmp

memory/2884-4-0x0000000000400000-0x000000000041D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-07 19:35

Reported

2024-01-07 19:38

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

138s

Command Line

winlogon.exe

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\sdra64.exe," C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\sdra64.exe C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe N/A
File created C:\Windows\SysWOW64\sdra64.exe C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe
PID 3812 wrote to memory of 620 N/A C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe C:\Windows\system32\winlogon.exe

Processes

C:\Windows\system32\winlogon.exe

winlogon.exe

C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe

"C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 8.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 183.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 174.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.179.17.96.in-addr.arpa udp
GB 96.17.179.174:80 tcp
US 8.8.8.8:53 26.35.223.20.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/3812-0-0x00000000005A0000-0x00000000005A2000-memory.dmp

memory/3812-1-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3812-4-0x0000000000400000-0x000000000041D000-memory.dmp

memory/620-13-0x0000000000400000-0x0000000000417000-memory.dmp

memory/620-23-0x00000000053F0000-0x0000000005407000-memory.dmp

memory/620-28-0x0000000005410000-0x0000000005427000-memory.dmp

memory/620-33-0x0000000005430000-0x0000000005447000-memory.dmp

memory/620-43-0x0000000005470000-0x0000000005487000-memory.dmp

memory/620-48-0x0000000005490000-0x00000000054A7000-memory.dmp

memory/620-58-0x00000000054D0000-0x00000000054E7000-memory.dmp

memory/620-63-0x00000000054F0000-0x0000000005507000-memory.dmp

memory/620-68-0x0000000005510000-0x0000000005527000-memory.dmp

memory/620-78-0x0000000005550000-0x0000000005567000-memory.dmp

memory/620-88-0x0000000005590000-0x00000000055A7000-memory.dmp

memory/620-93-0x00000000055B0000-0x00000000055C7000-memory.dmp

memory/620-103-0x00000000055F0000-0x0000000005607000-memory.dmp

memory/620-108-0x0000000005610000-0x0000000005627000-memory.dmp

memory/620-118-0x0000000005650000-0x0000000005667000-memory.dmp

memory/620-123-0x0000000005670000-0x0000000005687000-memory.dmp

memory/620-133-0x00000000056B0000-0x00000000056C7000-memory.dmp

memory/620-138-0x00000000056D0000-0x00000000056E7000-memory.dmp

memory/620-148-0x0000000005710000-0x0000000005727000-memory.dmp

memory/620-153-0x0000000005730000-0x0000000005747000-memory.dmp

memory/620-143-0x00000000056F0000-0x0000000005707000-memory.dmp

memory/620-128-0x0000000005690000-0x00000000056A7000-memory.dmp

memory/620-158-0x0000000005750000-0x0000000005767000-memory.dmp

memory/620-168-0x0000000005790000-0x00000000057A7000-memory.dmp

memory/620-173-0x00000000057B0000-0x00000000057C7000-memory.dmp

memory/620-178-0x00000000057D0000-0x00000000057E7000-memory.dmp

memory/620-183-0x00000000057F0000-0x0000000005807000-memory.dmp

memory/620-193-0x0000000005830000-0x0000000005847000-memory.dmp

memory/620-198-0x0000000005850000-0x0000000005867000-memory.dmp

memory/620-208-0x0000000005890000-0x00000000058A7000-memory.dmp

memory/620-213-0x00000000058B0000-0x00000000058C7000-memory.dmp

memory/620-223-0x00000000058F0000-0x0000000005907000-memory.dmp

memory/620-228-0x0000000005910000-0x0000000005927000-memory.dmp

memory/620-233-0x0000000005930000-0x0000000005947000-memory.dmp

memory/620-243-0x0000000005970000-0x0000000005987000-memory.dmp

memory/620-248-0x0000000005990000-0x00000000059A7000-memory.dmp

memory/620-258-0x00000000059D0000-0x00000000059E7000-memory.dmp

memory/620-263-0x00000000059F0000-0x0000000005A07000-memory.dmp

memory/620-268-0x0000000005A10000-0x0000000005A27000-memory.dmp

memory/620-278-0x0000000005A50000-0x0000000005A67000-memory.dmp

memory/620-283-0x0000000005A70000-0x0000000005A87000-memory.dmp

memory/620-293-0x0000000005AB0000-0x0000000005AC7000-memory.dmp

memory/620-298-0x0000000005AD0000-0x0000000005AE7000-memory.dmp

memory/620-308-0x0000000005B10000-0x0000000005B27000-memory.dmp

memory/620-313-0x0000000005B30000-0x0000000005B47000-memory.dmp

memory/620-318-0x0000000005B50000-0x0000000005B67000-memory.dmp

memory/620-303-0x0000000005AF0000-0x0000000005B07000-memory.dmp

memory/620-288-0x0000000005A90000-0x0000000005AA7000-memory.dmp

memory/620-273-0x0000000005A30000-0x0000000005A47000-memory.dmp

memory/620-253-0x00000000059B0000-0x00000000059C7000-memory.dmp

memory/620-238-0x0000000005950000-0x0000000005967000-memory.dmp

memory/620-218-0x00000000058D0000-0x00000000058E7000-memory.dmp

memory/620-203-0x0000000005870000-0x0000000005887000-memory.dmp

memory/620-188-0x0000000005810000-0x0000000005827000-memory.dmp

memory/620-163-0x0000000005770000-0x0000000005787000-memory.dmp

memory/620-113-0x0000000005630000-0x0000000005647000-memory.dmp

memory/620-98-0x00000000055D0000-0x00000000055E7000-memory.dmp

memory/620-83-0x0000000005570000-0x0000000005587000-memory.dmp

memory/620-73-0x0000000005530000-0x0000000005547000-memory.dmp

memory/620-53-0x00000000054B0000-0x00000000054C7000-memory.dmp

memory/620-38-0x0000000005450000-0x0000000005467000-memory.dmp

memory/620-18-0x00000000053D0000-0x00000000053E7000-memory.dmp

memory/3812-3-0x0000000002170000-0x0000000002180000-memory.dmp

memory/3812-2-0x0000000000400000-0x000000000041D000-memory.dmp

memory/3812-3717-0x0000000000400000-0x000000000041D000-memory.dmp