stealc | 51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db

General

Target

51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe
Size

1.7MB
MD5

4d2252d56465eef4ff197dc15ca36232
SHA1

1544980ddc6ca2f98e00eeed6a0c657ef2fc5e3c
SHA256

51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db
SHA512

7afafc191b27223d5dc21a0935a39d1be7ed2f5a5ce2d6c08c38ef2036e62a9097fb94bf94095eb33bbd4109707824066b995efe6a7ad133302a8b6d80ccb6f3
SSDEEP

49152:5JzNycCoYt6G/xWgNWIIJRq9Vm9RburOc:rDk7/pJIJRym1c

Score

10^/10

stealc reno defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

reno

C2

http://185.215.113.115

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__	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.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	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.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-1-5-21-100612193-3312047696-905266872-1000\Software\Wine	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.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
876	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1468	876	WerFault.exe	84

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	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.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	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
876	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe
876	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe
876	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe
876	51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe

C:\Users\Admin\AppData\Local\Temp\51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.exe
"C:\Users\Admin\AppData\Local\Temp\51ccf3ba9c672e189b075d959e8dbb8da42cf5b2411ffcb625e7c6c116a7f2db.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:876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 876 -s 1476
  2⤵
  - Program crash
  PID:1468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 876 -ip 876
1⤵
PID:4916

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/876-0-0x00000000007D0000-0x0000000000E69000-memory.dmp

Filesize
6.6MB

Download
memory/876-1-0x0000000077CA4000-0x0000000077CA6000-memory.dmp

Filesize
8KB

Download
memory/876-2-0x00000000007D1000-0x00000000007E8000-memory.dmp

Filesize
92KB

Download
memory/876-3-0x00000000007D0000-0x0000000000E69000-memory.dmp

Filesize
6.6MB

Download
memory/876-4-0x00000000007D0000-0x0000000000E69000-memory.dmp

Filesize
6.6MB

Download
memory/876-5-0x00000000007D0000-0x0000000000E69000-memory.dmp

Filesize
6.6MB

Download
memory/876-6-0x00000000007D0000-0x0000000000E69000-memory.dmp

Filesize
6.6MB

Download
memory/876-7-0x00000000007D0000-0x0000000000E69000-memory.dmp

Filesize
6.6MB

Download
memory/876-8-0x00000000007D0000-0x0000000000E69000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads