stealc | 9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e

General

Target

9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe
Size

4.9MB
MD5

50c6ca989aefc9719a21f7e8ff0d035f
SHA1

a351e1ab7bf8501fb0f7f9396c099784cdd1940c
SHA256

9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e
SHA512

ecbe82863c9f472120cbebd2a28b81cd9f40209c297c3ce441a7ac5791087714b8871162f168f380b01268358ab94ede973490828c5bc9c3d15723e0a2c2c339
SSDEEP

49152:cmrWBQ+MczhatG4Uys1RbER/ISCeMU35YWmvjIygYUsQSdnvc1V:cmrIDlaJs1RmISCeMhFjI2UUN4

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__	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.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	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.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
308	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1996	308	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	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.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	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
308	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe
308	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 308 wrote to memory of 1996	308	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe	32
PID 308 wrote to memory of 1996	308	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe	32
PID 308 wrote to memory of 1996	308	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe	32
PID 308 wrote to memory of 1996	308	9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe	32

C:\Users\Admin\AppData\Local\Temp\9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.exe
"C:\Users\Admin\AppData\Local\Temp\9a7e3e0c8689ef3ed894fdfe73fedeaee19dd6136996dad963a6b7618029ac6e.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:308
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 308 -s 924
  2⤵
  - Program crash
  PID:1996

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/308-0-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-1-0x0000000077C40000-0x0000000077C42000-memory.dmp

Filesize
8KB

Download
memory/308-2-0x0000000000B61000-0x0000000000DAA000-memory.dmp

Filesize
2.3MB

Download
memory/308-3-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-4-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-5-0x0000000000B61000-0x0000000000DAA000-memory.dmp

Filesize
2.3MB

Download
memory/308-6-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-7-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-8-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-9-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-10-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-11-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-12-0x0000000000B60000-0x0000000001054000-memory.dmp

Filesize
5.0MB

Download
memory/308-13-0x0000000000B61000-0x0000000000DAA000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads