stealc | 52aa0c072e5c7fef19391a933cb34b085bf34d258d3fd7603a99907b262d547d

Analysis

max time kernel
111s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
28-04-2024 17:45

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General

Target

tmp.exe
Size

307KB
MD5

4c1211ca6acf41a9a2282c3291384bc5
SHA1

0d405a8e2c8df1621a10adf984c836e29f0a51c5
SHA256

52aa0c072e5c7fef19391a933cb34b085bf34d258d3fd7603a99907b262d547d
SHA512

1a7b194c8dba9f99ebb419a5ff2b0918f8ef6b44ee72f00953fd422e0028d9797181c7644e671013743fccea89abeb5e3306f32e94a0ecb4d5e90184cefbef2b
SSDEEP

3072:P5aM5toPpVYuW+xe0Hu+3bL2U5yWa87D7O4CKZybD+6iHE3CI7I8NU:lssuWO2QXQWxO4FG5mE3CMNU

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

http://185.172.128.150

Attributes

url_path
/c698e1bc8a2f5e6d.php

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 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1948 4784 WerFault.exe tmp.exe

pid	pid_target	process	target process
1948	4784	WerFault.exe	tmp.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

Processes:

tmp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	tmp.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

tmp.exe

pid process

4784 tmp.exe
4784 tmp.exe

pid	process
4784	tmp.exe
4784	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 1328
2⤵
- Program crash
PID:1948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4784 -ip 4784
1⤵
PID:4508

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/4784-1-0x0000000001A20000-0x0000000001B20000-memory.dmp

Filesize
1024KB

Download
memory/4784-2-0x0000000001B60000-0x0000000001B87000-memory.dmp

Filesize
156KB

Download
memory/4784-3-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4784-4-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4784-5-0x0000000001A20000-0x0000000001B20000-memory.dmp

Filesize
1024KB

Download
memory/4784-6-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4784-9-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4784-11-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4784-13-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download