Malware Analysis Report

2025-04-13 12:23

Sample ID 250321-mznv7awybx
Target 8b402bb02ec8211eb98b09beb60ea62db552c98ecc5919337dbace8af8bc0f57
SHA256 8b402bb02ec8211eb98b09beb60ea62db552c98ecc5919337dbace8af8bc0f57
Tags
stealerium 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

8b402bb02ec8211eb98b09beb60ea62db552c98ecc5919337dbace8af8bc0f57

Threat Level: Known bad

The file 8b402bb02ec8211eb98b09beb60ea62db552c98ecc5919337dbace8af8bc0f57 was found to be: Known bad.

Malicious Activity Summary

stealerium stealer

Stealerium

Stealerium family

Suspicious use of NtCreateUserProcessOtherParentProcess

Checks computer location settings

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Kills process with taskkill

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-21 10:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-21 10:54

Reported

2025-03-21 10:56

Platform

win7-20240729-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe"

Signatures

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3064 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Windows\system32\WerFault.exe
PID 3064 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Windows\system32\WerFault.exe
PID 3064 wrote to memory of 2304 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe

"C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 3064 -s 608

Network

N/A

Files

memory/3064-0-0x000007FEF4EE3000-0x000007FEF4EE4000-memory.dmp

memory/3064-1-0x00000000009A0000-0x000000000118A000-memory.dmp

memory/3064-2-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

memory/3064-3-0x000000001CB00000-0x000000001D2D4000-memory.dmp

memory/3064-4-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-7-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-5-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-9-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-11-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-13-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-15-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-17-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-19-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-21-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-67-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-65-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-63-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-61-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-59-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-1340-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

memory/3064-57-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-55-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-53-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-1341-0x000000001D2D0000-0x000000001D9FC000-memory.dmp

memory/3064-1342-0x000000001DA00000-0x000000001E128000-memory.dmp

memory/3064-1343-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

memory/3064-51-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-1344-0x0000000000940000-0x000000000098C000-memory.dmp

memory/3064-49-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-47-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-45-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-43-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-1345-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

memory/3064-41-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-39-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-37-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-35-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-33-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-31-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-29-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-27-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-25-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-23-0x000000001CB00000-0x000000001D2CD000-memory.dmp

memory/3064-1346-0x000007FEF4EE3000-0x000007FEF4EE4000-memory.dmp

memory/3064-1347-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

memory/3064-1348-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

memory/3064-1349-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

memory/3064-1350-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

memory/3064-1351-0x0000000000780000-0x00000000007D4000-memory.dmp

memory/3064-1352-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

memory/3064-1353-0x000007FEF4EE0000-0x000007FEF58CC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-21 10:54

Reported

2025-03-21 10:56

Platform

win10v2004-20250314-en

Max time kernel

115s

Max time network

133s

Command Line

C:\Windows\Explorer.EXE

Signatures

Stealerium

stealer stealerium

Stealerium family

stealerium

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 1464 created 3428 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Windows\Explorer.EXE

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1464 set thread context of 5100 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe

Enumerates physical storage devices

Delays execution with timeout.exe

defense_evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Kills process with taskkill

defense_evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\taskkill.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1464 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe
PID 1464 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe
PID 1464 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe
PID 1464 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe
PID 1464 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe
PID 1464 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe
PID 5100 wrote to memory of 6128 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Windows\System32\cmd.exe
PID 5100 wrote to memory of 6128 N/A C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe C:\Windows\System32\cmd.exe
PID 6128 wrote to memory of 4976 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\chcp.com
PID 6128 wrote to memory of 4976 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\chcp.com
PID 6128 wrote to memory of 5316 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\taskkill.exe
PID 6128 wrote to memory of 5316 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\taskkill.exe
PID 6128 wrote to memory of 3084 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 6128 wrote to memory of 3084 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe

"C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe"

C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe

"C:\Users\Admin\AppData\Local\Temp\Listado Facturas.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\e69929f7-13ce-4e62-8ad0-831b468ace24.bat"

C:\Windows\system32\chcp.com

chcp 65001

C:\Windows\system32\taskkill.exe

taskkill /F /PID 5100

C:\Windows\system32\timeout.exe

timeout /T 2 /NOBREAK

Network

Country Destination Domain Proto
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.180.3:80 c.pki.goog tcp

Files

memory/1464-0-0x00007FF982133000-0x00007FF982135000-memory.dmp

memory/1464-1-0x000001A915020000-0x000001A91580A000-memory.dmp

memory/1464-2-0x000001A92FCA0000-0x000001A930474000-memory.dmp

memory/1464-3-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

memory/1464-4-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-5-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-8-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-9-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-15-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-17-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-21-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-27-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-31-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-47-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-53-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-55-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-67-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-65-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-63-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-61-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-59-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-57-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-51-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-49-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-45-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-43-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-41-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-39-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-37-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-35-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-29-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-25-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-23-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-33-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-19-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-13-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-11-0x000001A92FCA0000-0x000001A93046D000-memory.dmp

memory/1464-775-0x00007FF982133000-0x00007FF982135000-memory.dmp

memory/1464-854-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

memory/1464-1342-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

memory/1464-1343-0x000001A930570000-0x000001A930C9C000-memory.dmp

memory/1464-1344-0x000001A930CA0000-0x000001A9313C8000-memory.dmp

memory/1464-1345-0x000001A92FBF0000-0x000001A92FC3C000-memory.dmp

memory/1464-1346-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

memory/1464-1347-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

memory/1464-1348-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

memory/1464-1349-0x000001A932480000-0x000001A9324D4000-memory.dmp

memory/1464-1356-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

memory/1464-1353-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

memory/1464-1358-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

memory/5100-1357-0x0000000000400000-0x0000000000B0E000-memory.dmp

memory/5100-1359-0x00007FF982130000-0x00007FF982BF1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\e69929f7-13ce-4e62-8ad0-831b468ace24.bat

MD5 28e669b5b9a864bc2040223e9dccb74b
SHA1 546b5939be3e06edb023cb384ea96e7bcafbe90c
SHA256 75b3224955d8eef1fb1c1b6fbfd7f3b8345933e92a10444614d0953dfdd5b330
SHA512 a2360dd4c459a73900987f5f37c72203ff651a10307bdaff5bf652cc8718b450a46ee4b2e135135b525683aae28e20ed3650681bdcf7868bdd9c504d85239653

memory/5100-1362-0x00007FF982130000-0x00007FF982BF1000-memory.dmp