stealc | 871978fb97af5fca44a98714b79a3e86dfdb468eed6980dadc7f2bf7e5bf1aaa

Resubmissions

06-11-2023 19:37

231106-ybwfxadf81 10

06-11-2023 19:33

231106-x9tjjadf4z 10

06-11-2023 16:18

231106-tr58tscc9y 10

Analysis

max time kernel
312s
max time network
881s
platform
windows10-1703_x64
resource
win10-20231023-en
resource tags

arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
submitted
06-11-2023 19:37

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General

Target

1106-02-Stealc.exe
Size

256KB
MD5

189736b36bdf727a34cf673e7797823b
SHA1

a3ea45dd1d9fdbaf19c5197ee6515c78168bc4b9
SHA256

bb6758a9bce33333cbe3c141c2f7c94077d97cf25c83eb4282cc5ddcaeccc194
SHA512

4d8c1143a785df75885ef851f88249a5078d436bf3a3e9ac74326df11cd7cea87ccbca5bbe08aaea75cd675a5b00a58ce1e3da4df373f81c765e4bfbce16f141
SSDEEP

6144:NlL+epunGnKy5a6MlWLuerZDqtJD80VK/o:rvunGnKyyW6eNDqtJDrc

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

http://91.215.85.189

Attributes

url_path
/43851895e447afd7.php

rc4.plain

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1032	1106-02-Stealc.exe
1032	1106-02-Stealc.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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

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	1106-02-Stealc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1106-02-Stealc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1032	1106-02-Stealc.exe
1032	1106-02-Stealc.exe

C:\Users\Admin\AppData\Local\Temp\1106-02-Stealc.exe
"C:\Users\Admin\AppData\Local\Temp\1106-02-Stealc.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/1032-1-0x0000000000A30000-0x0000000000B30000-memory.dmp

Filesize
1024KB

Download
memory/1032-2-0x0000000000900000-0x000000000091B000-memory.dmp

Filesize
108KB

Download
memory/1032-3-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/1032-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1032-61-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/1032-62-0x0000000000900000-0x000000000091B000-memory.dmp

Filesize
108KB

Download