stealc | 0cb6db3b13d90d34c76a8978afe08abae24991fa0d11cecd642c7714f9b376a8

Analysis

max time kernel
135s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
10-06-2023 02:26

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General

Target

bf617cd6dac3097d47ac38c609a7b3d0.exe
Size

6.5MB
MD5

bf617cd6dac3097d47ac38c609a7b3d0
SHA1

e2c39b57f39364d54d4364540ce8f774b30d521d
SHA256

0cb6db3b13d90d34c76a8978afe08abae24991fa0d11cecd642c7714f9b376a8
SHA512

ad63b0c16621561028e4df64d45d1be68ae5baa3cf34400869df1acc7bcda6e65dad6e8cf2721f0d734ac03616a0fa8abbe31ddfeaa6bd4b294c2a026bb0c382
SSDEEP

98304:miMFhJ+oF/Z7QIL0rUJZPx8EvavPwbp56FjL:SerqJxQX

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

http://95.217.232.10/2e12d77e23b78d01.php

Signatures

Detects Stealc stealer 3 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/2932-134-0x0000000002B40000-0x0000000002D6C000-memory.dmp	family_stealc
behavioral2/memory/2932-136-0x0000000002B40000-0x0000000002D6C000-memory.dmp	family_stealc
behavioral2/memory/2932-213-0x0000000002B40000-0x0000000002D6C000-memory.dmp	family_stealc

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

bf617cd6dac3097d47ac38c609a7b3d0.exe

pid process

2932 bf617cd6dac3097d47ac38c609a7b3d0.exe
2932 bf617cd6dac3097d47ac38c609a7b3d0.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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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 physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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:

bf617cd6dac3097d47ac38c609a7b3d0.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	bf617cd6dac3097d47ac38c609a7b3d0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bf617cd6dac3097d47ac38c609a7b3d0.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

bf617cd6dac3097d47ac38c609a7b3d0.exe

pid	process
2932	bf617cd6dac3097d47ac38c609a7b3d0.exe
2932	bf617cd6dac3097d47ac38c609a7b3d0.exe
2932	bf617cd6dac3097d47ac38c609a7b3d0.exe
2932	bf617cd6dac3097d47ac38c609a7b3d0.exe

C:\Users\Admin\AppData\Local\Temp\bf617cd6dac3097d47ac38c609a7b3d0.exe
"C:\Users\Admin\AppData\Local\Temp\bf617cd6dac3097d47ac38c609a7b3d0.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2932

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\mozglue.dll
Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll
Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/2932-133-0x0000000000400000-0x0000000000AA4000-memory.dmp

Filesize
6.6MB

Download
memory/2932-134-0x0000000002B40000-0x0000000002D6C000-memory.dmp

Filesize
2.2MB

Download
memory/2932-136-0x0000000002B40000-0x0000000002D6C000-memory.dmp

Filesize
2.2MB

Download
memory/2932-137-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2932-213-0x0000000002B40000-0x0000000002D6C000-memory.dmp

Filesize
2.2MB

Download