stealc | 1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae

General

Target

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe
Size

1.7MB
MD5

d2156fe745a5dbf3303a799a82d736e0
SHA1

04530b3ff60a8d706ffcc2ec0d7df2ae0ea1377d
SHA256

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae
SHA512

4aca71a25c6599961f20a058c4106981cbc375aae567b0cc6e361391716a37dac7ac079baa40036406a0d6d9376d36a8cb73b7d275b5c5c17571e2650d044829
SSDEEP

24576:K5O4xwSRvGX7Oa2le2aX7vp79zM/o11AU/S0fg106etQmxzNwOP17m2wTpJn/EEQ:GRvAO+2wbpRM/AOySgG0Fjwu7mbl6T

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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

Processes:

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.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:

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.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:

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.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

Processes:

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

pid process

2092 1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2548 2092 WerFault.exe 1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

pid	pid_target	process	target process
2548	2092	WerFault.exe	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.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:

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.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

Processes:

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

pid	process
2092	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe
2092	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe

description	pid	process	target process
PID 2092 wrote to memory of 2548	2092	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe	WerFault.exe
PID 2092 wrote to memory of 2548	2092	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe	WerFault.exe
PID 2092 wrote to memory of 2548	2092	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe	WerFault.exe
PID 2092 wrote to memory of 2548	2092	1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.exe
"C:\Users\Admin\AppData\Local\Temp\1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae.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:2092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 932
  2⤵
  - Program crash
  PID:2548

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2092-0-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download
memory/2092-1-0x0000000076F00000-0x0000000076F02000-memory.dmp

Filesize
8KB

Download
memory/2092-2-0x0000000001121000-0x0000000001138000-memory.dmp

Filesize
92KB

Download
memory/2092-3-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download
memory/2092-4-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download
memory/2092-5-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download
memory/2092-6-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download
memory/2092-7-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download
memory/2092-8-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download
memory/2092-9-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download
memory/2092-10-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download
memory/2092-12-0x0000000001120000-0x00000000017B5000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads