stealc | bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d

General

Target

bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe
Size

2.7MB
MD5

7ebc22fc52d7d3cc7e66f1a5e92a3a96
SHA1

4b1d0403b39e9f8c5a8c69174a018f228c4b82b4
SHA256

bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d
SHA512

5a63b28f7c81959828055f2f35ff7f7b68681439db9c7d01f5b1c7f8d60d57d576e2c804fae0f5bf341b878b944bb2f8c2df1c295d85a55e5f3c8913111eb2e7
SSDEEP

24576:NViMG9aahpsQzSw25h34adfB4vVDBCyJ2HbDT9fIoBNVTAPQB8GnhRhzEDc40hYN:+MqaiDjEJfFVlfhiifHufhjgD

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__	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.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	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.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
1984	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2596	1984	WerFault.exe	30

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	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.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	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1984	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe
1984	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2596	1984	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe	32
PID 1984 wrote to memory of 2596	1984	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe	32
PID 1984 wrote to memory of 2596	1984	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe	32
PID 1984 wrote to memory of 2596	1984	bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe	32

C:\Users\Admin\AppData\Local\Temp\bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.exe
"C:\Users\Admin\AppData\Local\Temp\bea98a74c6bbce2b3b934a2c0ffb593db0b63f190d9b69e99b23a25ca693e94d.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:1984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1984 -s 924
  2⤵
  - Program crash
  PID:2596

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/1984-0-0x00000000010F0000-0x00000000015E3000-memory.dmp

Filesize
4.9MB

Download
memory/1984-1-0x0000000077820000-0x0000000077822000-memory.dmp

Filesize
8KB

Download
memory/1984-2-0x00000000010F1000-0x0000000001108000-memory.dmp

Filesize
92KB

Download
memory/1984-3-0x00000000010F0000-0x00000000015E3000-memory.dmp

Filesize
4.9MB

Download
memory/1984-4-0x00000000010F0000-0x00000000015E3000-memory.dmp

Filesize
4.9MB

Download
memory/1984-5-0x00000000010F0000-0x00000000015E3000-memory.dmp

Filesize
4.9MB

Download
memory/1984-6-0x00000000010F0000-0x00000000015E3000-memory.dmp

Filesize
4.9MB

Download
memory/1984-7-0x00000000010F0000-0x00000000015E3000-memory.dmp

Filesize
4.9MB

Download
memory/1984-8-0x00000000010F0000-0x00000000015E3000-memory.dmp

Filesize
4.9MB

Download
memory/1984-9-0x00000000010F0000-0x00000000015E3000-memory.dmp

Filesize
4.9MB

Download
memory/1984-10-0x00000000010F0000-0x00000000015E3000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads