stealc | 3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd

General

Target

3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe
Size

1.7MB
MD5

e82e0229701466e683772938dd529b83
SHA1

5c4cf0651a63343363d5b61e0de49c4cd76648f5
SHA256

3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd
SHA512

c0684bcbeb0ca918f64ada5d5c40e784a8324cccfc04879c33fd51840136a2f48f93b657051083425f8a09eaff8c64991462f46573360d03668973a21ead63d6
SSDEEP

49152:hJ1wS7i0yur9eYvzuH1E9bJrk7lv4F3VOVFEMfYxDUM/jT:n1BiPu5sHkbmyFoFXfYxnr

Score

10^/10

stealc kira defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

kira

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__	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.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	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.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-1-5-21-2436272344-4274332273-444425594-1000\Software\Wine	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.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
1540	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
512	1540	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	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.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	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1540	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe
1540	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe
1540	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe
1540	3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe

C:\Users\Admin\AppData\Local\Temp\3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.exe
"C:\Users\Admin\AppData\Local\Temp\3e104c73e4d8497b810589afa9a960b261559fe06565b040dda3642e2dd087dd.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:1540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1540 -s 1492
  2⤵
  - Program crash
  PID:512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1540 -ip 1540
1⤵
PID:1928

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/1540-0-0x00000000003A0000-0x0000000000A41000-memory.dmp

Filesize
6.6MB

Download
memory/1540-1-0x0000000077464000-0x0000000077466000-memory.dmp

Filesize
8KB

Download
memory/1540-2-0x00000000003A1000-0x00000000003B8000-memory.dmp

Filesize
92KB

Download
memory/1540-3-0x00000000003A0000-0x0000000000A41000-memory.dmp

Filesize
6.6MB

Download
memory/1540-4-0x00000000003A0000-0x0000000000A41000-memory.dmp

Filesize
6.6MB

Download
memory/1540-5-0x00000000003A0000-0x0000000000A41000-memory.dmp

Filesize
6.6MB

Download
memory/1540-6-0x00000000003A0000-0x0000000000A41000-memory.dmp

Filesize
6.6MB

Download
memory/1540-7-0x00000000003A0000-0x0000000000A41000-memory.dmp

Filesize
6.6MB

Download
memory/1540-8-0x00000000003A0000-0x0000000000A41000-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