stealc | 3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857

General

Target

3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe
Size

2.8MB
MD5

880f67c30d6c2335273b27df0004f500
SHA1

d340d73b98a457d26180d69c28486f4d0cb98432
SHA256

3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857
SHA512

346c038aa380b6467417d01d9fae63bb55424886c85ac42cf98e2c9fe851c55c31bc4b46096cc793233409366c9752325c20c8ff5150eaeb8184b54ec7878ccc
SSDEEP

49152:sClAvSx/8MLHGbScHSJtB9YfkahghnWxS30m:sClaSx/8Mb8SQpk0gv0m

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe

Checks BIOS information in registry 2 TTPs 2 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\SystemBiosVersion	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe

Identifies Wine through registry keys 2 TTPs 1 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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Wine	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2752	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3464	2752	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 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	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2752	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe
2752	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe
2752	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe
2752	3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe

C:\Users\Admin\AppData\Local\Temp\3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.exe
"C:\Users\Admin\AppData\Local\Temp\3acd04016a0846f4e6c69d4684ac0a21dc476e63f8e7957fc73ca58c90f40857.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
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 1496
  2⤵
  - Program crash
  PID:3464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 2752 -ip 2752
1⤵
PID:4392

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

5

T1012

System Information Discovery

2

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

memory/2752-0-0x0000000000F40000-0x000000000143C000-memory.dmp

Filesize
5.0MB

Download
memory/2752-1-0x0000000077514000-0x0000000077516000-memory.dmp

Filesize
8KB

Download
memory/2752-2-0x0000000000F41000-0x0000000000F58000-memory.dmp

Filesize
92KB

Download
memory/2752-3-0x0000000000F40000-0x000000000143C000-memory.dmp

Filesize
5.0MB

Download
memory/2752-4-0x0000000000F40000-0x000000000143C000-memory.dmp

Filesize
5.0MB

Download
memory/2752-5-0x0000000000F40000-0x000000000143C000-memory.dmp

Filesize
5.0MB

Download
memory/2752-6-0x0000000000F40000-0x000000000143C000-memory.dmp

Filesize
5.0MB

Download
memory/2752-7-0x0000000000F40000-0x000000000143C000-memory.dmp

Filesize
5.0MB

Download
memory/2752-9-0x0000000000F40000-0x000000000143C000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads