stealc | dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96

General

Target

dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe
Size

1.7MB
MD5

8c4096b1a53df33149894f1afbe58144
SHA1

5451f5f2bebcd2d9544f84cced591fc7549d5dcb
SHA256

dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96
SHA512

42c48fcfde62e513a4441a4bf736618ea2982bc4e39abf33a6afac96e00bf93416f9df845668d863e1856aecd079e7aae31b01258ccb7bf0759c40592a4887ac
SSDEEP

49152:W/etoHIa5pASPQO+bpi57JLFJJjhxbGAfllpGodxex7DIJ:WmtOmSYO+VqJhJZhxCA9lrAx7

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__	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.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	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.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-1-5-21-493223053-2004649691-1575712786-1000\Software\Wine	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.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
4932	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1160	4932	WerFault.exe	82

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	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.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	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4932	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe
4932	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe
4932	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe
4932	dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe

C:\Users\Admin\AppData\Local\Temp\dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.exe
"C:\Users\Admin\AppData\Local\Temp\dbfdea8d443ec33a8ba5fe8e753fc7e8e3482a4a420fd68b21ecf124639a3e96.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
PID:4932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 1480
  2⤵
  - Program crash
  PID:1160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4932 -ip 4932
1⤵
PID:2648

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/4932-0-0x0000000000E80000-0x0000000001508000-memory.dmp

Filesize
6.5MB

Download
memory/4932-1-0x0000000077964000-0x0000000077966000-memory.dmp

Filesize
8KB

Download
memory/4932-2-0x0000000000E81000-0x0000000000E98000-memory.dmp

Filesize
92KB

Download
memory/4932-3-0x0000000000E80000-0x0000000001508000-memory.dmp

Filesize
6.5MB

Download
memory/4932-4-0x0000000000E80000-0x0000000001508000-memory.dmp

Filesize
6.5MB

Download
memory/4932-5-0x0000000000E80000-0x0000000001508000-memory.dmp

Filesize
6.5MB

Download
memory/4932-6-0x0000000000E80000-0x0000000001508000-memory.dmp

Filesize
6.5MB

Download
memory/4932-7-0x0000000000E80000-0x0000000001508000-memory.dmp

Filesize
6.5MB

Download
memory/4932-8-0x0000000000E80000-0x0000000001508000-memory.dmp

Filesize
6.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads