Malware Analysis Report

2024-10-19 06:53

Sample ID 240124-p97r6abab4
Target McGen.exe
SHA256 2a0f9a08fc9b79e28ff8c527eaee816b12c24ff947f781ed049d5ea0408f885d
Tags
stealerium collection spyware 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 Overview

score
10/10

SHA256

2a0f9a08fc9b79e28ff8c527eaee816b12c24ff947f781ed049d5ea0408f885d

Threat Level: Known bad

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

Malicious Activity Summary

stealerium collection spyware stealer

Stealerium

Stealerium family

Reads user/profile data of web browsers

Accesses Microsoft Outlook profiles

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Program crash

Unsigned PE

outlook_win_path

Checks processor information in registry

outlook_office_path

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-24 13:02

Signatures

Stealerium family

stealerium

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-24 13:02

Reported

2024-01-24 13:55

Platform

win10v2004-20231215-en

Max time kernel

1152s

Max time network

1158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\McGen.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-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\McGen.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\McGen.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\McGen.exe N/A

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

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

Program crash

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

Checks processor information in registry

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2752 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\McGen.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\McGen.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\McGen.exe C:\Windows\SysWOW64\cmd.exe
PID 4416 wrote to memory of 4424 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 4416 wrote to memory of 4424 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 4416 wrote to memory of 4424 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 4416 wrote to memory of 1924 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 4416 wrote to memory of 1924 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 4416 wrote to memory of 1924 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 4416 wrote to memory of 208 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 4416 wrote to memory of 208 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 4416 wrote to memory of 208 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 2752 wrote to memory of 4912 N/A C:\Users\Admin\AppData\Local\Temp\McGen.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 4912 N/A C:\Users\Admin\AppData\Local\Temp\McGen.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 4912 N/A C:\Users\Admin\AppData\Local\Temp\McGen.exe C:\Windows\SysWOW64\cmd.exe
PID 4912 wrote to memory of 3928 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 4912 wrote to memory of 3928 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 4912 wrote to memory of 3928 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 4912 wrote to memory of 4580 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 4912 wrote to memory of 4580 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 4912 wrote to memory of 4580 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\McGen.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\McGen.exe N/A

Processes

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

"C:\Users\Admin\AppData\Local\Temp\McGen.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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2752 -ip 2752

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 2880

Network

Country Destination Domain Proto
US 8.8.8.8:53 187.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 146.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 232.138.159.162.in-addr.arpa udp
US 8.8.8.8:53 icanhazip.com udp
US 104.18.115.97:80 icanhazip.com tcp
US 8.8.8.8:53 97.115.18.104.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 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 104.18.115.97:80 icanhazip.com tcp
US 8.8.8.8:53 api.gofile.io udp
FR 151.80.29.83:443 api.gofile.io tcp
US 8.8.8.8:53 83.29.80.151.in-addr.arpa udp
US 8.8.8.8:53 74.239.69.13.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp

Files

memory/2752-0-0x0000000074FF0000-0x00000000757A0000-memory.dmp

memory/2752-1-0x0000000000B20000-0x0000000000CB2000-memory.dmp

memory/2752-2-0x0000000005690000-0x00000000056F6000-memory.dmp

memory/2752-3-0x0000000074FF0000-0x00000000757A0000-memory.dmp

memory/2752-4-0x0000000005760000-0x0000000005770000-memory.dmp

memory/2752-7-0x0000000005BE0000-0x0000000005C72000-memory.dmp

memory/2752-8-0x0000000005C70000-0x0000000005C96000-memory.dmp

memory/2752-9-0x0000000003120000-0x0000000003128000-memory.dmp

memory/2752-10-0x00000000062B0000-0x00000000062BA000-memory.dmp

memory/2752-11-0x00000000062C0000-0x00000000062C8000-memory.dmp

memory/2752-12-0x0000000006D10000-0x0000000006D2E000-memory.dmp

memory/2752-41-0x0000000008640000-0x00000000086D2000-memory.dmp

C:\Users\Admin\AppData\Local\4137727a0010564184984e3a28128ef6\Admin@NUPNSVML_en-US\System\Debug.txt

MD5 68723649be1a75782270045ed211eaff
SHA1 ced6d69b6c444dfe300657c83e6b4d5fb2812706
SHA256 492e6bd7b4102ac23964c003acc415c8a08bf6c71b041d89493316f00cc2b6d2
SHA512 722f9f8222c70a3944b9acec9556402ba30ad66f5b47188f7d9853108ced89cbffa4631c77adabc09629934678aabcbea6ddb0e8d46c7afde01182cdc646452e

C:\Users\Admin\AppData\Local\4137727a0010564184984e3a28128ef6\Admin@NUPNSVML_en-US\Browsers\Firefox\Bookmarks.txt

MD5 2e9d094dda5cdc3ce6519f75943a4ff4
SHA1 5d989b4ac8b699781681fe75ed9ef98191a5096c
SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
SHA512 d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

memory/2752-77-0x0000000008C90000-0x0000000009234000-memory.dmp

memory/2752-114-0x0000000005760000-0x0000000005770000-memory.dmp

C:\Users\Admin\AppData\Local\4137727a0010564184984e3a28128ef6\Admin@NUPNSVML_en-US\System\Process.txt

MD5 644d74dc037f938e840501648237de2e
SHA1 94355a0d663ce6fc6b8847c7ea5cef2eb37e93b2
SHA256 170dfbd1059b20b3bb9615a661f20396e7ceba4e10e99b191bfd12cbdb0c7073
SHA512 58ca7b9a9333662609cb461b696f6df20bc14a4ca801b44ee6b5bfef70226d78f18c4148b51eb680bd9db1250b76aa3ab161811c969b04348789861af4fd66a1

memory/2752-167-0x0000000005760000-0x0000000005770000-memory.dmp

C:\Users\Admin\AppData\Local\4137727a0010564184984e3a28128ef6\Admin@NUPNSVML_en-US\System\Apps.txt

MD5 ccb3292aef4fc57ea4e5cc2e4fe192a2
SHA1 7a064cf87352ac7554b86c9e42c0072972aad656
SHA256 3ce45cd6bc49282884ec7cb1f74eb1eb8b2663990b8d75d5e57cee9a4f6b4886
SHA512 9ffc6e6c7958600e8149c4ae7375ec35845db47ddde311371ac42c9d4b605bb5a02325f903a461c87bf628c3e972a3882c0637df319dd798734eed8e27e74d1f

memory/2752-202-0x00000000061D0000-0x000000000624A000-memory.dmp

C:\Users\Admin\AppData\Local\4137727a0010564184984e3a28128ef6\Admin@NUPNSVML_en-US\Directories\Startup.txt

MD5 68c93da4981d591704cea7b71cebfb97
SHA1 fd0f8d97463cd33892cc828b4ad04e03fc014fa6
SHA256 889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483
SHA512 63455c726b55f2d4de87147a75ff04f2daa35278183969ccf185d23707840dd84363bec20d4e8c56252196ce555001ca0e61b3f4887d27577081fdef9e946402

C:\Users\Admin\AppData\Local\4137727a0010564184984e3a28128ef6\Admin@NUPNSVML_en-US\Directories\Videos.txt

MD5 1fddbf1169b6c75898b86e7e24bc7c1f
SHA1 d2091060cb5191ff70eb99c0088c182e80c20f8c
SHA256 a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733
SHA512 20bfeafde7fec1753fef59de467bd4a3dd7fe627e8c44e95fe62b065a5768c4508e886ec5d898e911a28cf6365f455c9ab1ebe2386d17a76f53037f99061fd4d

C:\Users\Admin\AppData\Local\4137727a0010564184984e3a28128ef6\Admin@NUPNSVML_en-US\System\ProductKey.txt

MD5 71eb5479298c7afc6d126fa04d2a9bde
SHA1 a9b3d5505cf9f84bb6c2be2acece53cb40075113
SHA256 f6cadfd4e4c25ff3b8cffe54a2af24a757a349abbf4e1142ec4c9789347fe8b3
SHA512 7c6687e21d31ec1d6d2eff04b07b465f875fd80df26677f1506b14158444cf55044eb6674880bd5bd44f04ff73023b26cb19b8837427a1d6655c96df52f140bd

C:\Users\Admin\AppData\Local\4137727a0010564184984e3a28128ef6\Admin@NUPNSVML_en-US\Directories\OneDrive.txt

MD5 966247eb3ee749e21597d73c4176bd52
SHA1 1e9e63c2872cef8f015d4b888eb9f81b00a35c79
SHA256 8ddfc481b1b6ae30815ecce8a73755862f24b3bb7fdebdbf099e037d53eb082e
SHA512 bd30aec68c070e86e3dec787ed26dd3d6b7d33d83e43cb2d50f9e2cff779fee4c96afbbe170443bd62874073a844beb29a69b10c72c54d7d444a8d86cfd7b5aa

memory/2752-275-0x0000000007520000-0x00000000075D2000-memory.dmp

memory/2752-277-0x00000000075D0000-0x00000000075F2000-memory.dmp

memory/2752-278-0x0000000007B50000-0x0000000007EA4000-memory.dmp

memory/2752-279-0x0000000005760000-0x0000000005770000-memory.dmp

memory/2752-280-0x0000000074FF0000-0x00000000757A0000-memory.dmp