stealc | f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 02:55

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General

Target

f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe
Size

1.7MB
MD5

ae317d18bc4ca2596e61445e70cbc6db
SHA1

62beb43b116740abd9c2af0fffebd823748f62a4
SHA256

f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec
SHA512

69bd0757e46516f0c167de05fe9102e2bfc3858389d5d3f43b99d64ccb897fa2245d07a8210d6544ef4da39f985b446b5245503ffd8e01a182e69e4d771a42a0
SSDEEP

24576:J+ZNgCmBvXk8sWZamLdRWaT7pepbh9ujtFPxfXul9vwN56X9ZX/PKyods4VFOu:JM1l8sWZaKHFqujdP3yZX/yfOWO

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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

Processes:

f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.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

Processes:

f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.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

Processes:

f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

pid	Process
2464	f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

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

Processes:

f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

pid	Process
2464	f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe

C:\Users\Admin\AppData\Local\Temp\f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.exe
"C:\Users\Admin\AppData\Local\Temp\f4ed4f57a7e4e56751abe21cbd71ae96f72af06f340a7f1a443e5ec09c6e81ec.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
- Suspicious behavior: EnumeratesProcesses
PID:2464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2464-0-0x0000000000380000-0x0000000000A2A000-memory.dmp

Filesize
6.7MB

Download
memory/2464-1-0x0000000077E80000-0x0000000077E82000-memory.dmp

Filesize
8KB

Download
memory/2464-2-0x0000000000381000-0x0000000000398000-memory.dmp

Filesize
92KB

Download
memory/2464-3-0x0000000000380000-0x0000000000A2A000-memory.dmp

Filesize
6.7MB

Download
memory/2464-4-0x0000000000380000-0x0000000000A2A000-memory.dmp

Filesize
6.7MB

Download