stealc | 1817ba3bb9c03905be9ce0a5e7e560ece00416dc457fe9dc51f6be3db86e997f

General

Target

98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe
Size

101KB
MD5

b663d60bac4cf5c09fd1399aa29f38e3
SHA1

dbf52a4f440ce4d8236b7dad5dd9802a5bb84644
SHA256

98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35
SHA512

0c8bceb23f8dba0f94713f7cf5dab0795e9c3c39aeb2ec7a3ce13641999b2aa2b33bec2647400f75213d61d5600a3d5a867d01c5fe075d68d18aafa649530f07
SSDEEP

1536:yV/6ogcasplKQJa1HmAlfR9Rwk/Tr2GreyjS0Pz+Tcgr6SzI41jfwsLkWTeTNuS:U/vgwFJ0mi2kWGreC41jBFeZu

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://jaimemcgee.top

Attributes

url_path
/40d570f44e84a454.php

rc4.plain

Signatures

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

Deletes itself 1 IoCs

pid	Process
2508	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
2872	98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe
2872	98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.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

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	98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2684	timeout.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2872	98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2508	2872	98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe	29
PID 2872 wrote to memory of 2508	2872	98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe	29
PID 2872 wrote to memory of 2508	2872	98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe	29
PID 2872 wrote to memory of 2508	2872	98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe	29
PID 2508 wrote to memory of 2684	2508	cmd.exe	31
PID 2508 wrote to memory of 2684	2508	cmd.exe	31
PID 2508 wrote to memory of 2684	2508	cmd.exe	31
PID 2508 wrote to memory of 2684	2508	cmd.exe	31

C:\Users\Admin\AppData\Local\Temp\98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe
"C:\Users\Admin\AppData\Local\Temp\98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35.exe" & del "C:\ProgramData\*.dll"" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2508
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - Delays execution with timeout.exe
    PID:2684

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

\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/2872-0-0x0000000000FD0000-0x00000000011FD000-memory.dmp

Filesize
2.2MB

Download
memory/2872-1-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2872-64-0x0000000000FD0000-0x00000000011FD000-memory.dmp

Filesize
2.2MB

Download

Analysis

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