stealc | b797a298c2298b56cab4e147ec3b7c6ef2f564f1e607e3661deaf0e18f82358b

General

Target

NEAS.dddb12ef50e8c59ed5d7888ba5ae8f40.exe
Size

642KB
MD5

dddb12ef50e8c59ed5d7888ba5ae8f40
SHA1

d8c39fea818633e7e8efe9cf85155418e5fce475
SHA256

b797a298c2298b56cab4e147ec3b7c6ef2f564f1e607e3661deaf0e18f82358b
SHA512

f20f57cf085cf0ad00b6076742bb9875a64ff1b2f61e21d29451d9643aa8074a17c0dee2879c2953fc8042d0f98d3fc8a415687b3fb88063478fb6701f5fd275
SSDEEP

12288:JHQ4R78rGcukgmWRjAeQJqtoCldl4Dol9:1HhZcw95jSCloDg9

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://bidbur.com

Attributes

url_path
/b5c586aec2e1004c.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
4268	NEAS.dddb12ef50e8c59ed5d7888ba5ae8f40.exe
4268	NEAS.dddb12ef50e8c59ed5d7888ba5ae8f40.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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4480	4268	WerFault.exe	87
2388	4268	WerFault.exe	87

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	NEAS.dddb12ef50e8c59ed5d7888ba5ae8f40.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	NEAS.dddb12ef50e8c59ed5d7888ba5ae8f40.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4268	NEAS.dddb12ef50e8c59ed5d7888ba5ae8f40.exe
4268	NEAS.dddb12ef50e8c59ed5d7888ba5ae8f40.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.dddb12ef50e8c59ed5d7888ba5ae8f40.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.dddb12ef50e8c59ed5d7888ba5ae8f40.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4268
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4268 -s 2184
  2⤵
  - Program crash
  PID:4480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4268 -s 2284
  2⤵
  - Program crash
  PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4268 -ip 4268
1⤵
PID:3268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4268 -ip 4268
1⤵
PID:4672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4268 -ip 4268
1⤵
PID:4368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

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
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/4268-6-0x0000000002240000-0x000000000226B000-memory.dmp

Filesize
172KB

Download
memory/4268-13-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-0-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-7-0x0000000010000000-0x000000001022D000-memory.dmp

Filesize
2.2MB

Download
memory/4268-8-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-9-0x0000000010000000-0x000000001022D000-memory.dmp

Filesize
2.2MB

Download
memory/4268-10-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-11-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-12-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-4-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-15-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4268-56-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-3-0x00000000021A0000-0x00000000021A1000-memory.dmp

Filesize
4KB

Download
memory/4268-2-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-1-0x00000000021A0000-0x00000000021A1000-memory.dmp

Filesize
4KB

Download
memory/4268-79-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download
memory/4268-84-0x0000000010000000-0x00000000100A6000-memory.dmp

Filesize
664KB

Download

Analysis

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