stealc | bfc092b384976e97153bae0e29359461bfd65fce5ad8188d6460de57bc680eaf

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
31-07-2024 10:23

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General

Target

1/08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe
Size

161KB
MD5

855da30648c0d4f4e2497470ece750bf
SHA1

4f45dae1b578ddd47a0d62b59e5fbc9a4f11e58a
SHA256

08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65
SHA512

948b66613c1e494e445a8fb7eff553345385ca0cd468c500397ea7c3bd02bc6163930759b057f98c9245c118205e0166023fee4e13135ef677947619d184d393
SSDEEP

3072:/9gyPX977bb+Vnh9N47rL74qBlslaubyAWEktPZsZ:/yMZPb+Vnh9CLtkauehEkf

Score

10^/10

stealc hello credential_access discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

hello

http://85.28.47.70

Attributes

url_path
/570d5d5e8678366c.php

Signatures

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

Deletes itself 1 IoCs

pid	Process
2996	cmd.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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	08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2832	timeout.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2312	08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2996	2312	08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe	30
PID 2312 wrote to memory of 2996	2312	08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe	30
PID 2312 wrote to memory of 2996	2312	08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe	30
PID 2312 wrote to memory of 2996	2312	08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe	30
PID 2996 wrote to memory of 2832	2996	cmd.exe	32
PID 2996 wrote to memory of 2832	2996	cmd.exe	32
PID 2996 wrote to memory of 2832	2996	cmd.exe	32
PID 2996 wrote to memory of 2832	2996	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\1\08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe
"C:\Users\Admin\AppData\Local\Temp\1\08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe"
1⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\1\08b7620610fc30c54e5cc095a54ae6d2949f68b0f224c285283e1612c254ef65.exe" & del "C:\ProgramData\*.dll"" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2996
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2312-0-0x0000000000180000-0x00000000003BC000-memory.dmp

Filesize
2.2MB

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memory/2312-1-0x0000000000180000-0x00000000003BC000-memory.dmp

Filesize
2.2MB

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