stealc | 1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987

General

Target

1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe
Size

1.7MB
MD5

e4b77cd011e9024ec2d44f37033c357e
SHA1

443a8932f7792aa6bfa2be7f575e01c54bba6850
SHA256

1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987
SHA512

2c1201c74c6fb6484926106ee64f1fe017c53b26465de8cf20ed4c5adba0af98a94bab5d7d32c331990efdf618abaa963483d5b789f1967925548fd5fbd2d3d6
SSDEEP

49152:wwFYNxIWFLqp9cW7x4uW/9STNuC1L1jrR0YfLkj4c:wbvFuh7S99STNuC1ZHG7

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__	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.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	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.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
2212	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2656	2212	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	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.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	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2212	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe
2212	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2656	2212	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe	32
PID 2212 wrote to memory of 2656	2212	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe	32
PID 2212 wrote to memory of 2656	2212	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe	32
PID 2212 wrote to memory of 2656	2212	1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe	32

C:\Users\Admin\AppData\Local\Temp\1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.exe
"C:\Users\Admin\AppData\Local\Temp\1e9ceefebd0caafefbe565a81a7bb3e065d29a5258adfef8f1f9f80a1a626987.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:2212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2212 -s 932
  2⤵
  - Program crash
  PID:2656

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/2212-0-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download
memory/2212-1-0x0000000077410000-0x0000000077412000-memory.dmp

Filesize
8KB

Download
memory/2212-2-0x00000000001A1000-0x00000000001B8000-memory.dmp

Filesize
92KB

Download
memory/2212-3-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download
memory/2212-4-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download
memory/2212-5-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download
memory/2212-6-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download
memory/2212-7-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download
memory/2212-8-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download
memory/2212-9-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download
memory/2212-10-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download
memory/2212-11-0x00000000001A0000-0x0000000000848000-memory.dmp

Filesize
6.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads