stealc | 32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd

General

Target

32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe
Size

1.7MB
MD5

f334b96544dbc3467d24741068ced8cf
SHA1

218b1ae4fcac0e594e4ddaf147c1f9407f3fe8ac
SHA256

32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd
SHA512

7b5ccbbc29c1921c5edb40908ce5345179143ac601b8b3801319cf4712199e505ee875d4f266ae26670401a2fe8eca212327d7dc07fe2ffb84bd33f1159df6ad
SSDEEP

49152:zkHwety1ESoYDJTReijFKc4F0K0b4jiSqj:zkhmESXw2Fz4Zjqj

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__	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.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	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.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
5036	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3064	5036	WerFault.exe	81

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	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.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	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5036	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe
5036	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe
5036	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe
5036	32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe

C:\Users\Admin\AppData\Local\Temp\32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.exe
"C:\Users\Admin\AppData\Local\Temp\32931e2ad397136959de3ea23d0471531e7812e8278affc4acd97bdb204e53fd.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:5036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5036 -s 1468
  2⤵
  - Program crash
  PID:3064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5036 -ip 5036
1⤵
PID:316

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/5036-0-0x0000000000B10000-0x00000000011AD000-memory.dmp

Filesize
6.6MB

Download
memory/5036-1-0x00000000774D4000-0x00000000774D6000-memory.dmp

Filesize
8KB

Download
memory/5036-2-0x0000000000B11000-0x0000000000B28000-memory.dmp

Filesize
92KB

Download
memory/5036-3-0x0000000000B10000-0x00000000011AD000-memory.dmp

Filesize
6.6MB

Download
memory/5036-4-0x0000000000B10000-0x00000000011AD000-memory.dmp

Filesize
6.6MB

Download
memory/5036-5-0x0000000000B10000-0x00000000011AD000-memory.dmp

Filesize
6.6MB

Download
memory/5036-6-0x0000000000B10000-0x00000000011AD000-memory.dmp

Filesize
6.6MB

Download
memory/5036-7-0x0000000000B10000-0x00000000011AD000-memory.dmp

Filesize
6.6MB

Download
memory/5036-8-0x0000000000B10000-0x00000000011AD000-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