Malware Analysis Report

2025-06-15 22:22

Sample ID 241109-x5haps1amj
Target 9d8339d342ed747583da03583afdb445.exe
SHA256 695b8d6b97edf8239d5ae772c2d726740d81a0b4893199c3be812406e0942123
Tags
stealc default10 discovery stealer
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

695b8d6b97edf8239d5ae772c2d726740d81a0b4893199c3be812406e0942123

Threat Level: Known bad

The file 9d8339d342ed747583da03583afdb445.exe was found to be: Known bad.

Malicious Activity Summary

stealc default10 discovery stealer

Stealc

Stealc family

Downloads MZ/PE file

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 19:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 19:26

Reported

2024-11-09 19:28

Platform

win7-20240903-en

Max time kernel

141s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe"

Signatures

Stealc

stealer stealc

Stealc family

stealc

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4194.tmp.exe N/A

Enumerates physical storage devices

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\9d8339d342ed747583da03583afdb445.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4194.tmp.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe

"C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe"

C:\Users\Admin\AppData\Local\Temp\4194.tmp.exe

"C:\Users\Admin\AppData\Local\Temp\4194.tmp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 post-to-me.com udp
US 172.67.179.207:443 post-to-me.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.187.195:80 c.pki.goog tcp
RU 176.113.115.37:80 176.113.115.37 tcp
RU 62.204.41.163:80 62.204.41.163 tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.18:80 crl.microsoft.com tcp

Files

memory/2752-1-0x0000000002CE0000-0x0000000002DE0000-memory.dmp

memory/2752-2-0x0000000000220000-0x0000000000285000-memory.dmp

memory/2752-3-0x0000000000400000-0x0000000000468000-memory.dmp

memory/2752-19-0x0000000002CE0000-0x0000000002DE0000-memory.dmp

memory/2752-21-0x0000000000220000-0x0000000000285000-memory.dmp

memory/2752-20-0x0000000000400000-0x0000000002B74000-memory.dmp

memory/2752-22-0x0000000000400000-0x0000000000468000-memory.dmp

\Users\Admin\AppData\Local\Temp\4194.tmp.exe

MD5 f7e637924f021b359d158d31c93d239f
SHA1 dfc068dc3c019741c56481bdc1d2ff216ac50765
SHA256 f87fafe5077d57748093d125dccf8fb8d80bed99de2f11c5032ddd80ae09b3b1
SHA512 2203fcb797198774dd9a43304a221849e2170c3c6dc8b55c7859a0482026c1dfdb6bcae74fe35c6296fa954fe0fd2b571c1f2b411259a667247d2d3b15ccfd9c

memory/3044-43-0x0000000000400000-0x0000000002B50000-memory.dmp

memory/2752-44-0x0000000000400000-0x0000000002B74000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 19:26

Reported

2024-11-09 19:28

Platform

win10v2004-20241007-en

Max time kernel

140s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe"

Signatures

Stealc

stealer stealc

Stealc family

stealc

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\E6C6.tmp.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\E6C6.tmp.exe

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\9d8339d342ed747583da03583afdb445.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\E6C6.tmp.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe

"C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe"

C:\Users\Admin\AppData\Local\Temp\E6C6.tmp.exe

"C:\Users\Admin\AppData\Local\Temp\E6C6.tmp.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2396 -ip 2396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 1016

Network

Country Destination Domain Proto
US 8.8.8.8:53 post-to-me.com udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 104.21.56.70:443 post-to-me.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.187.195:80 c.pki.goog tcp
US 8.8.8.8:53 70.56.21.104.in-addr.arpa udp
US 8.8.8.8:53 195.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
RU 176.113.115.37:80 176.113.115.37 tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 37.115.113.176.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
RU 62.204.41.163:80 62.204.41.163 tcp
US 8.8.8.8:53 163.41.204.62.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/4628-1-0x0000000002D30000-0x0000000002E30000-memory.dmp

memory/4628-2-0x00000000047D0000-0x0000000004835000-memory.dmp

memory/4628-3-0x0000000000400000-0x0000000000468000-memory.dmp

memory/4628-4-0x0000000002D30000-0x0000000002E30000-memory.dmp

memory/4628-6-0x00000000047D0000-0x0000000004835000-memory.dmp

memory/4628-5-0x0000000000400000-0x0000000002B74000-memory.dmp

memory/4628-7-0x0000000000400000-0x0000000000468000-memory.dmp

memory/4628-14-0x0000000000400000-0x0000000002B74000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\E6C6.tmp.exe

MD5 f7e637924f021b359d158d31c93d239f
SHA1 dfc068dc3c019741c56481bdc1d2ff216ac50765
SHA256 f87fafe5077d57748093d125dccf8fb8d80bed99de2f11c5032ddd80ae09b3b1
SHA512 2203fcb797198774dd9a43304a221849e2170c3c6dc8b55c7859a0482026c1dfdb6bcae74fe35c6296fa954fe0fd2b571c1f2b411259a667247d2d3b15ccfd9c

memory/4628-29-0x0000000000400000-0x0000000002B74000-memory.dmp

memory/2396-30-0x0000000000400000-0x0000000002B50000-memory.dmp