stealc | adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91

General

Target

adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe
Size

1.8MB
MD5

d9b687c64ec888affae5f27fd35218d5
SHA1

61601415587e5b7edb9870adf5b06ad8622278c7
SHA256

adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91
SHA512

6aa1af69bb0cd8b1cefc4776d65dc24987c488a1c88c3988e6fc927b0b000d8ae7fb23d37d6ee6a7250d9272aee8a5dec8a6591fc40a82c21b83f8f3e885b99f
SSDEEP

49152:R5S5vM1OTx7NR4hok44rX5sHw/6Xt+Fp0FQVfA2c4r8F/HB+:+MqNWhok4UXmQ/wtkWFQRcw8FfU

Score

10^/10

stealc brat defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

brat

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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.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	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.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
328	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2748	328	WerFault.exe	29

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	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
328	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe
328	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 328 wrote to memory of 2748	328	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe	32
PID 328 wrote to memory of 2748	328	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe	32
PID 328 wrote to memory of 2748	328	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe	32
PID 328 wrote to memory of 2748	328	adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe	32

C:\Users\Admin\AppData\Local\Temp\adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.exe
"C:\Users\Admin\AppData\Local\Temp\adddb826ff20d2ff9fadf6358bc0dc81b73afb0da11f9370b4e225cab9ab0a91.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
- Suspicious use of WriteProcessMemory
PID:328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 328 -s 932
  2⤵
  - Program crash
  PID:2748

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/328-0-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download
memory/328-1-0x00000000775B0000-0x00000000775B2000-memory.dmp

Filesize
8KB

Download
memory/328-2-0x0000000001051000-0x0000000001068000-memory.dmp

Filesize
92KB

Download
memory/328-3-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download
memory/328-4-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download
memory/328-5-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download
memory/328-6-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download
memory/328-7-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download
memory/328-8-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download
memory/328-9-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download
memory/328-10-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download
memory/328-11-0x0000000001050000-0x0000000001706000-memory.dmp

Filesize
6.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads