Malware Analysis Report

2024-08-06 12:53

Sample ID 240629-snnzpstajj
Target build.exe
SHA256 842e7116969f5c569fd85f4a6b3c6c849934a567336fa8c4b79a47780d5cb871
Tags
stealerium collection persistence privilege_escalation spyware stealer
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 Overview

score
10/10

SHA256

842e7116969f5c569fd85f4a6b3c6c849934a567336fa8c4b79a47780d5cb871

Threat Level: Known bad

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

Malicious Activity Summary

stealerium collection persistence privilege_escalation spyware stealer

Stealerium

Stealerium family

Reads user/profile data of web browsers

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Legitimate hosting services abused for malware hosting/C2

Event Triggered Execution: Netsh Helper DLL

Unsigned PE

outlook_office_path

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

outlook_win_path

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Event Triggered Execution
T1546
Netsh Helper DLL
T1546.007
Privilege Escalation
TA0004
Event Triggered Execution
T1546
Netsh Helper DLL
T1546.007
Defense Evasion
TA0005
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Email Collection
T1114
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-29 15:16

Signatures

Stealerium family

stealerium

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 15:16

Reported

2024-06-29 15:17

Platform

win10v2004-20240508-en

Max time kernel

26s

Max time network

22s

Command Line

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

Signatures

Stealerium

stealer stealerium

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\build.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\build.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\build.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A discord.com N/A N/A
N/A discord.com N/A N/A
N/A discord.com N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A icanhazip.com N/A N/A

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\build.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Users\Admin\AppData\Local\Temp\build.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\build.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\msiexec.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4948 wrote to memory of 3552 N/A C:\Users\Admin\AppData\Local\Temp\build.exe C:\Windows\SysWOW64\cmd.exe
PID 4948 wrote to memory of 3552 N/A C:\Users\Admin\AppData\Local\Temp\build.exe C:\Windows\SysWOW64\cmd.exe
PID 4948 wrote to memory of 3552 N/A C:\Users\Admin\AppData\Local\Temp\build.exe C:\Windows\SysWOW64\cmd.exe
PID 3552 wrote to memory of 4944 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3552 wrote to memory of 4944 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3552 wrote to memory of 4944 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3552 wrote to memory of 4740 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 3552 wrote to memory of 4740 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 3552 wrote to memory of 4740 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 3552 wrote to memory of 1704 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 3552 wrote to memory of 1704 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 3552 wrote to memory of 1704 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 4948 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\build.exe C:\Windows\SysWOW64\cmd.exe
PID 4948 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\build.exe C:\Windows\SysWOW64\cmd.exe
PID 4948 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\build.exe C:\Windows\SysWOW64\cmd.exe
PID 3708 wrote to memory of 1068 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3708 wrote to memory of 1068 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3708 wrote to memory of 1068 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3708 wrote to memory of 3040 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 3708 wrote to memory of 3040 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 3708 wrote to memory of 3040 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\build.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\build.exe N/A

Processes

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

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

C:\Windows\SysWOW64\cmd.exe

"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\netsh.exe

netsh wlan show profile

C:\Windows\SysWOW64\findstr.exe

findstr All

C:\Windows\system32\msiexec.exe

C:\Windows\system32\msiexec.exe /V

C:\Windows\SysWOW64\cmd.exe

"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\netsh.exe

netsh wlan show networks mode=bssid

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.135.232:443 discord.com tcp
US 8.8.8.8:53 232.135.159.162.in-addr.arpa udp
US 8.8.8.8:53 icanhazip.com udp
US 104.16.185.241:80 icanhazip.com tcp
US 8.8.8.8:53 241.185.16.104.in-addr.arpa udp
US 8.8.8.8:53 evcs-ocsp.ws.symantec.com udp
US 152.199.19.74:80 evcs-ocsp.ws.symantec.com tcp
US 8.8.8.8:53 74.19.199.152.in-addr.arpa udp
US 104.16.185.241:80 icanhazip.com tcp
US 8.8.8.8:53 api.gofile.io udp
FR 51.38.43.18:443 api.gofile.io tcp
US 8.8.8.8:53 store1.gofile.io udp
FR 45.112.123.227:443 store1.gofile.io tcp
US 8.8.8.8:53 18.43.38.51.in-addr.arpa udp
US 8.8.8.8:53 227.123.112.45.in-addr.arpa udp
US 104.16.185.241:80 icanhazip.com tcp
US 162.159.135.232:443 discord.com tcp

Files

memory/4948-0-0x000000007449E000-0x000000007449F000-memory.dmp

memory/4948-1-0x00000000006B0000-0x0000000000842000-memory.dmp

memory/4948-2-0x0000000005250000-0x00000000052B6000-memory.dmp

memory/4948-3-0x0000000074490000-0x0000000074C40000-memory.dmp

memory/4948-6-0x0000000005760000-0x00000000057F2000-memory.dmp

memory/4948-7-0x00000000057F0000-0x0000000005816000-memory.dmp

memory/4948-8-0x00000000055C0000-0x00000000055C8000-memory.dmp

memory/4948-9-0x0000000006640000-0x000000000664A000-memory.dmp

memory/4948-10-0x0000000006650000-0x0000000006658000-memory.dmp

memory/4948-11-0x0000000006670000-0x000000000668E000-memory.dmp

C:\Users\Admin\AppData\Local\aa7624ae0597b6ceb4f30cb089f350ca\Admin@SNFVGQLU_en-US\Browsers\Firefox\Bookmarks.txt

MD5 2e9d094dda5cdc3ce6519f75943a4ff4
SHA1 5d989b4ac8b699781681fe75ed9ef98191a5096c
SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
SHA512 d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

memory/4948-67-0x0000000006C20000-0x0000000006CB2000-memory.dmp

memory/4948-73-0x00000000076B0000-0x0000000007C54000-memory.dmp

C:\Users\Admin\AppData\Local\aa7624ae0597b6ceb4f30cb089f350ca\Admin@SNFVGQLU_en-US\System\Process.txt

MD5 5193d46e51dde596febcbabbd58a7360
SHA1 37982c043ee9c9bc6e53594c70385579c9c65a64
SHA256 a3630540e5df7f9b996700651771be09afee67b0012693e57e2a9cdeed91b47c
SHA512 297f0252c071b37158979c79c1c89b66c942377803b5a986bfee84d73aa3b8d6bfae6c5353062e3ea2500005a7194acc838fece47e62b0455bcccfeb02ac9e69

C:\Users\Admin\AppData\Local\aa7624ae0597b6ceb4f30cb089f350ca\Admin@SNFVGQLU_en-US\System\Apps.txt

MD5 f5f1dbcbfe9a445682561530eef7a287
SHA1 0a68adec0404f895615435c3736b88911888ef6e
SHA256 8f66a5b0dd0bb3fa73b71064221badafb96a3859c967e8fce7c337e1913f291e
SHA512 cf08b6fb0c7e3ab6c713cd90d075510dd26d63579bfb51444c29a1112955974feecc9cf6dc26a11e61efc6c8d43b4048d7de2f9587749cfdb3e2939e74da375d

memory/4948-200-0x00000000067E0000-0x000000000685A000-memory.dmp

C:\Users\Admin\AppData\Local\aa7624ae0597b6ceb4f30cb089f350ca\Admin@SNFVGQLU_en-US\Directories\OneDrive.txt

MD5 966247eb3ee749e21597d73c4176bd52
SHA1 1e9e63c2872cef8f015d4b888eb9f81b00a35c79
SHA256 8ddfc481b1b6ae30815ecce8a73755862f24b3bb7fdebdbf099e037d53eb082e
SHA512 bd30aec68c070e86e3dec787ed26dd3d6b7d33d83e43cb2d50f9e2cff779fee4c96afbbe170443bd62874073a844beb29a69b10c72c54d7d444a8d86cfd7b5aa

C:\Users\Admin\AppData\Local\aa7624ae0597b6ceb4f30cb089f350ca\Admin@SNFVGQLU_en-US\Directories\Startup.txt

MD5 68c93da4981d591704cea7b71cebfb97
SHA1 fd0f8d97463cd33892cc828b4ad04e03fc014fa6
SHA256 889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483
SHA512 63455c726b55f2d4de87147a75ff04f2daa35278183969ccf185d23707840dd84363bec20d4e8c56252196ce555001ca0e61b3f4887d27577081fdef9e946402

C:\Users\Admin\AppData\Local\aa7624ae0597b6ceb4f30cb089f350ca\Admin@SNFVGQLU_en-US\System\ProductKey.txt

MD5 71eb5479298c7afc6d126fa04d2a9bde
SHA1 a9b3d5505cf9f84bb6c2be2acece53cb40075113
SHA256 f6cadfd4e4c25ff3b8cffe54a2af24a757a349abbf4e1142ec4c9789347fe8b3
SHA512 7c6687e21d31ec1d6d2eff04b07b465f875fd80df26677f1506b14158444cf55044eb6674880bd5bd44f04ff73023b26cb19b8837427a1d6655c96df52f140bd

C:\Users\Admin\AppData\Local\aa7624ae0597b6ceb4f30cb089f350ca\Admin@SNFVGQLU_en-US\Directories\Videos.txt

MD5 1fddbf1169b6c75898b86e7e24bc7c1f
SHA1 d2091060cb5191ff70eb99c0088c182e80c20f8c
SHA256 a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733
SHA512 20bfeafde7fec1753fef59de467bd4a3dd7fe627e8c44e95fe62b065a5768c4508e886ec5d898e911a28cf6365f455c9ab1ebe2386d17a76f53037f99061fd4d

C:\Users\Admin\AppData\Local\aa7624ae0597b6ceb4f30cb089f350ca\Admin@SNFVGQLU_en-US\System\Debug.txt

MD5 bafeb73804590174046e9eda3f9d3545
SHA1 92179b11df4e6bf10f709465ee3e0c02c55254f3
SHA256 0806389213efd1280046dab794ecf1dd623daab68d63d81856e83496fc77c7a7
SHA512 901c204fd55449f09bd0c5d469ec949791bbe78f80e6fbc3f5164bb1bc8500cf2ae287a1ae2e7f453b8aa050ff766eb713c665ee53f4a823cfd9372aca51c433

memory/4948-273-0x0000000006AF0000-0x0000000006BA2000-memory.dmp

memory/4948-275-0x0000000006860000-0x0000000006882000-memory.dmp

memory/4948-276-0x0000000007F60000-0x00000000082B4000-memory.dmp

C:\Users\Admin\AppData\Local\aa7624ae0597b6ceb4f30cb089f350ca\msgid.dat

MD5 05b0e4235e5200ecd2e15381870c954e
SHA1 fd65049e4b3160d67699a00892e9885edab4b510
SHA256 bb74d4b6c8ab8c7696ca949159504268ebe0d5748c5a1779a85a23c4ef9ea9dc
SHA512 84d7fd68d497faec745c9592dd7725b0a0ed0be2795dd65b72ebd7a0e644a8c7f2c5babc9f724bb338cb5dfe89fe764ae3b7fbd284378dfb8e255b455adc796e

memory/4948-288-0x00000000070B0000-0x00000000070BA000-memory.dmp

memory/4948-289-0x000000007449E000-0x000000007449F000-memory.dmp

memory/4948-290-0x0000000074490000-0x0000000074C40000-memory.dmp