stealc | a63c8da0504eb526d7a28d684872a1aca575819f46a0ecef131d30ac2d6da4ed

General

Target

file.exe
Size

5.0MB
MD5

2704b8659485a783c81f96440f2f5ca4
SHA1

d8883d8802dd0363cc505cbae99d3c37fa83b283
SHA256

a63c8da0504eb526d7a28d684872a1aca575819f46a0ecef131d30ac2d6da4ed
SHA512

84bb63aeaf561b26b86475f4eedd99b368f697bc760afe9f16557a585cf4e747d6d8b68f0fd27af0883fd6d81386e5304d49bfee4d365820b6c2fce6218d3284
SSDEEP

49152:63T9U3oVHLbwpaN4j7fMljwRMyWrMQFn:ET9goVrbv4j7EpuTAF

Score

10^/10

stealc drum discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

drum

C2

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 7 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe

Checks BIOS information in registry 2 TTPs 14 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe

Identifies Wine through registry keys 2 TTPs 7 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Wine	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Wine	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Wine	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Wine	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Wine	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Wine	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Wine	file.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs

pid	Process
4324	file.exe
800	file.exe
4768	file.exe
4728	file.exe
4016	file.exe
2920	file.exe
4048	file.exe

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:"	BackgroundTransferHost.exe
Key created	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000_Classes\Local Settings\MuiCache	BackgroundTransferHost.exe
Key created	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000_Classes\Local Settings\MuiCache	MiniSearchHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	BackgroundTransferHost.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4324	file.exe
4324	file.exe
800	file.exe
800	file.exe
4768	file.exe
4768	file.exe
4728	file.exe
4728	file.exe
4016	file.exe
4016	file.exe
2920	file.exe
2920	file.exe
4048	file.exe
4048	file.exe

Suspicious behavior: LoadsDriver 6 IoCs

pid	Process
4	Process not Found
4	Process not Found
4	Process not Found
4	Process not Found
4	Process not Found
664	Process not Found

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeBackupPrivilege	2980	svchost.exe
Token: SeRestorePrivilege	2980	svchost.exe
Token: SeSecurityPrivilege	2980	svchost.exe
Token: SeTakeOwnershipPrivilege	2980	svchost.exe
Token: 35	2980	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2712	MiniSearchHost.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4324

C:\Windows\system32\BackgroundTransferHost.exe
"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
1⤵
- Modifies registry class
PID:1684

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:72

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:800

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4768

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4728

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4016

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2920

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
1⤵
PID:2756

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DevicesFlow -s DevicesFlowUserSvc
1⤵
PID:3260

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
1⤵
PID:1788

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k SDRSVC
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2980

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:2712

C:\Users\Admin\Desktop\file.exe
"C:\Users\Admin\Desktop\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\23c6ddb0-7b8e-4f31-be2b-f50b8e4f5f13.down_data

Filesize
555KB

MD5
5683c0028832cae4ef93ca39c8ac5029

SHA1
248755e4e1db552e0b6f8651b04ca6d1b31a86fb

SHA256
855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e

SHA512
aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3

Download Submit
C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

Filesize
10KB

MD5
96329c73cc49cd960e2485210d01c4d2

SHA1
a496b98ad2f2bbf26687b5b7794a26aa4470148e

SHA256
4c159cab6c9ef5ff39e6141b0ccb5b8c6251a3d637520609dfbdd852fa94d466

SHA512
e98736a879cad24c693d6c5939654b2fd25bf9d348f738668624214f22d541a9b781c967201ab2d43cbac9207946824a0299d482485f4b63c48d5d2a839e5baf

Download Submit
memory/800-7-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download
memory/800-6-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download
memory/2920-11-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download
memory/4016-10-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download
memory/4048-25-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download
memory/4324-3-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download
memory/4324-5-0x0000000000761000-0x00000000009AA000-memory.dmp

Filesize
2.3MB

Download
memory/4324-4-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download
memory/4324-0-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download
memory/4324-2-0x0000000000761000-0x00000000009AA000-memory.dmp

Filesize
2.3MB

Download
memory/4324-1-0x0000000077DA6000-0x0000000077DA8000-memory.dmp

Filesize
8KB

Download
memory/4728-9-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download
memory/4768-8-0x0000000000760000-0x0000000000C6C000-memory.dmp

Filesize
5.0MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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