stealc | 6f49cca8b3fe1ff8022805fbf29225511e68e5480a3795ff60a3f178efa20481

Analysis

max time kernel
180s
max time network
201s
platform
windows10-1703_x64
resource
win10-20231020-en
resource tags

arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
submitted
28-10-2023 18:17

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General

Target

6f49cca8b3fe1ff8022805fbf29225511e68e5480a3795ff60a3f178efa20481.exe
Size

1.1MB
MD5

e04d70d7dca38d3695c770e4746ddc72
SHA1

bad8a7de9782f69e748d927cc7473138a23042aa
SHA256

6f49cca8b3fe1ff8022805fbf29225511e68e5480a3795ff60a3f178efa20481
SHA512

016574249cbc92c4f119051d4f0da1356ac294b01766730e011f58fdce5ebdde519349136c58e578c832d9e74992bac212119ef9498948d53989137aa50239e2
SSDEEP

24576:8eh4biccwWcz+9N+gigYb484ecjxJjpZ/FA9:8j4EmZN4

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

http://tetromask.site

Attributes

url_path
/b5c586aec2e1004c.php

rc4.plain

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3772	3084	WerFault.exe	70
384	3084	WerFault.exe	70

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	6f49cca8b3fe1ff8022805fbf29225511e68e5480a3795ff60a3f178efa20481.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6f49cca8b3fe1ff8022805fbf29225511e68e5480a3795ff60a3f178efa20481.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3084	6f49cca8b3fe1ff8022805fbf29225511e68e5480a3795ff60a3f178efa20481.exe
3084	6f49cca8b3fe1ff8022805fbf29225511e68e5480a3795ff60a3f178efa20481.exe

C:\Users\Admin\AppData\Local\Temp\6f49cca8b3fe1ff8022805fbf29225511e68e5480a3795ff60a3f178efa20481.exe
"C:\Users\Admin\AppData\Local\Temp\6f49cca8b3fe1ff8022805fbf29225511e68e5480a3795ff60a3f178efa20481.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1176
  2⤵
  - Program crash
  PID:3772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1168
  2⤵
  - Program crash
  PID:384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3084-0-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/3084-1-0x0000000002270000-0x000000000229B000-memory.dmp

Filesize
172KB

Download
memory/3084-2-0x0000000010000000-0x000000001022D000-memory.dmp

Filesize
2.2MB

Download
memory/3084-4-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/3084-3-0x0000000010000000-0x0000000010121000-memory.dmp

Filesize
1.1MB

Download
memory/3084-5-0x0000000010000000-0x000000001022D000-memory.dmp

Filesize
2.2MB

Download