stealc | c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c

General

Target

c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe
Size

2.8MB
MD5

d28368624064897b6de18c67ac34136e
SHA1

53180c3e966601ceed981a57325c7ca951dcc118
SHA256

c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c
SHA512

8e2f50cd98b8ef9fd3c29aaefc10ba5ac9919d40d9dd21a186cf505fb7b1ab89a9e35bb2d9f2685a7bb5b88e66aebe831fcaff2ec1ccfe41e9baca46d5e3ccb1
SSDEEP

49152:YO4KgbNIC8phsfIkCCA4JlAxbX41M9nY+IWwE5x/c/YwU/D:OKgbNIC8phsfJCCPlAO0fwEbEg5r

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__	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.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	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.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
1688	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2104	1688	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	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.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	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1688	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe
1688	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe
1688	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe
1688	c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe

C:\Users\Admin\AppData\Local\Temp\c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.exe
"C:\Users\Admin\AppData\Local\Temp\c010f7da1401935d30e6448b48eac6bdae60ab5244d45c8fd8671ea914c4480c.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:1688
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1688 -s 1476
  2⤵
  - Program crash
  PID:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1688 -ip 1688
1⤵
PID:1904

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/1688-0-0x0000000000560000-0x0000000000A5C000-memory.dmp

Filesize
5.0MB

Download
memory/1688-1-0x0000000077564000-0x0000000077566000-memory.dmp

Filesize
8KB

Download
memory/1688-2-0x0000000000561000-0x0000000000578000-memory.dmp

Filesize
92KB

Download
memory/1688-3-0x0000000000560000-0x0000000000A5C000-memory.dmp

Filesize
5.0MB

Download
memory/1688-4-0x0000000000560000-0x0000000000A5C000-memory.dmp

Filesize
5.0MB

Download
memory/1688-5-0x0000000000560000-0x0000000000A5C000-memory.dmp

Filesize
5.0MB

Download
memory/1688-6-0x0000000000560000-0x0000000000A5C000-memory.dmp

Filesize
5.0MB

Download
memory/1688-7-0x0000000000560000-0x0000000000A5C000-memory.dmp

Filesize
5.0MB

Download
memory/1688-9-0x0000000000560000-0x0000000000A5C000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads