stealc | 4e66c6d5063ac6e1ec8dfe8405891bdff353f5930032a0e9227341014791eaca

Analysis

max time kernel
127s
max time network
138s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 02:08

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General

Target

s.exe
Size

778KB
MD5

6f8117b1c507d04641ec34d4fb1a8e69
SHA1

2cf75c7a5d8f0dc659797c6cd42591ca8d36d61c
SHA256

c9bcdc77108fd94f32851543d38be6982f3bb611c3a1115fc90013f965ed0b66
SHA512

f4c9d92650cc8a7aaae3f9191b58b76a53a4e4b3a4fd4c635a54f11f91c2f2855c37c99659411b47d0e3348abc4720a24763de71fbc8778c88e514b123d52430
SSDEEP

12288:3awSSvx68hhn3zMlKOXN5oWt9ksx+8DjyF6vJEmI5L+j2ulZIa:32f8hilKO95o7Y+8DeF6b2+jca

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

http://176.124.198.17

Attributes

url_path
/1da263bff25c8346.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

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\K:	s.exe
File opened (read-only)	\??\M:	s.exe
File opened (read-only)	\??\P:	s.exe
File opened (read-only)	\??\R:	s.exe
File opened (read-only)	\??\X:	s.exe
File opened (read-only)	\??\E:	s.exe
File opened (read-only)	\??\I:	s.exe
File opened (read-only)	\??\S:	s.exe
File opened (read-only)	\??\V:	s.exe
File opened (read-only)	\??\W:	s.exe
File opened (read-only)	\??\Y:	s.exe
File opened (read-only)	\??\O:	s.exe
File opened (read-only)	\??\Q:	s.exe
File opened (read-only)	\??\Z:	s.exe
File opened (read-only)	\??\G:	s.exe
File opened (read-only)	\??\H:	s.exe
File opened (read-only)	\??\J:	s.exe
File opened (read-only)	\??\L:	s.exe
File opened (read-only)	\??\N:	s.exe
File opened (read-only)	\??\T:	s.exe
File opened (read-only)	\??\A:	s.exe
File opened (read-only)	\??\B:	s.exe
File opened (read-only)	\??\U:	s.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	s.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	s.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2956	s.exe

C:\Users\Admin\AppData\Local\Temp\s.exe
"C:\Users\Admin\AppData\Local\Temp\s.exe"
1⤵
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2956-0-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download
memory/2956-1-0x0000000004680000-0x00000000048AE000-memory.dmp

Filesize
2.2MB

Download
memory/2956-2-0x0000000004680000-0x00000000048AE000-memory.dmp

Filesize
2.2MB

Download