stealc | daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0

General

Target

daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe
Size

4.9MB
MD5

7bb5bb0adfd25eed3c9bc8efb804a837
SHA1

f6755a4fce640106bc1b70fdb2345674a3d8e22b
SHA256

daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0
SHA512

278e40c8717a00505c0823e2f189c173355b55727d4a5d9b10f1f456b330fce6646436ae6f65306e29d484e3949b68acf0e2afcf39e386ace023a8afcf27ddc6
SSDEEP

24576:td6YLwXvYmI2jAmdq2emrQw+2MhOB87BiUVn3pcPKdg72/cOgia+RsBZz7Qe/xLI:tfLEAmpUmdOmrR83pcPKdgtSsBZj/

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__	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.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\VideoBiosVersion	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.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
2376	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2120	2376	WerFault.exe	28

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	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.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	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2376	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe
2376	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2120	2376	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe	30
PID 2376 wrote to memory of 2120	2376	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe	30
PID 2376 wrote to memory of 2120	2376	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe	30
PID 2376 wrote to memory of 2120	2376	daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe	30

C:\Users\Admin\AppData\Local\Temp\daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.exe
"C:\Users\Admin\AppData\Local\Temp\daab6899aa0611fa275a2790d7097de84967e97bfd3878e975d2d50ed3b41da0.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:2376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 432
  2⤵
  - Program crash
  PID:2120

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/2376-0-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-1-0x0000000077460000-0x0000000077462000-memory.dmp

Filesize
8KB

Download
memory/2376-2-0x0000000000221000-0x000000000046A000-memory.dmp

Filesize
2.3MB

Download
memory/2376-3-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-4-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-6-0x0000000000221000-0x000000000046A000-memory.dmp

Filesize
2.3MB

Download
memory/2376-5-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-7-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-8-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-9-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-10-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-11-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-12-0x0000000000220000-0x0000000000716000-memory.dmp

Filesize
5.0MB

Download
memory/2376-13-0x0000000000221000-0x000000000046A000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads