stealc | 59f20114929a66a4c6243ae9d416192f0b7a584c6d3a07253e0cc69776b4de46

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
07/07/2024, 04:08

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General

Target

Setup.exe
Size

663.4MB
MD5

70a9e51d9777a02427404e4dc2325f0f
SHA1

b340348b78dcbbdc49dc9206f68aa3950723b964
SHA256

f9f5fe8a6d4ef35fdacc5623b1dc689be3ea89c61efdf68e0ddf449916396f05
SHA512

65888e9a446880cd8911ed56047392c00735fe484530962e8d1b70256b082c9eff822b4db0c84db689e5f11331b56acfa62d86b0a496f8b6b744380853b86ebe
SSDEEP

196608:Xpcugy7TlXNdj+P64+SPrW7hOOo4j704ehNVhV98x+L5rCZhwNNwL84XiOHWgE:Xpcu7k6BkOxU4o

Score

10^/10

stealc puaro spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

Puaro

https://9507c272a51ce8cefc8761591b2c50e6.fit

Attributes

url_path
/2fca4d4264af2833.php

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2400	HJKECAAAFH.exe

Loads dropped DLL 2 IoCs

pid	Process
2936	SearchIndexer.exe
2936	SearchIndexer.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3608 set thread context of 4744	3608	Setup.exe	83
PID 2400 set thread context of 2644	2400	HJKECAAAFH.exe	92

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\L-Connect Service.job	cmd.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

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

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3608	Setup.exe
3608	Setup.exe
4744	comp.exe
4744	comp.exe
2936	SearchIndexer.exe
2936	SearchIndexer.exe
2936	SearchIndexer.exe
2936	SearchIndexer.exe
2400	HJKECAAAFH.exe
2400	HJKECAAAFH.exe
2644	cmd.exe
2644	cmd.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
3608	Setup.exe
4744	comp.exe
2400	HJKECAAAFH.exe
2644	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3608 wrote to memory of 4744	3608	Setup.exe	83
PID 3608 wrote to memory of 4744	3608	Setup.exe	83
PID 3608 wrote to memory of 4744	3608	Setup.exe	83
PID 3608 wrote to memory of 4744	3608	Setup.exe	83
PID 4744 wrote to memory of 2936	4744	comp.exe	85
PID 4744 wrote to memory of 2936	4744	comp.exe	85
PID 4744 wrote to memory of 2936	4744	comp.exe	85
PID 4744 wrote to memory of 2936	4744	comp.exe	85
PID 2936 wrote to memory of 3736	2936	SearchIndexer.exe	89
PID 2936 wrote to memory of 3736	2936	SearchIndexer.exe	89
PID 2936 wrote to memory of 3736	2936	SearchIndexer.exe	89
PID 3736 wrote to memory of 2400	3736	cmd.exe	91
PID 3736 wrote to memory of 2400	3736	cmd.exe	91
PID 3736 wrote to memory of 2400	3736	cmd.exe	91
PID 2400 wrote to memory of 2644	2400	HJKECAAAFH.exe	92
PID 2400 wrote to memory of 2644	2400	HJKECAAAFH.exe	92
PID 2400 wrote to memory of 2644	2400	HJKECAAAFH.exe	92
PID 2400 wrote to memory of 2644	2400	HJKECAAAFH.exe	92
PID 2644 wrote to memory of 4996	2644	cmd.exe	95
PID 2644 wrote to memory of 4996	2644	cmd.exe	95
PID 2644 wrote to memory of 4996	2644	cmd.exe	95
PID 2644 wrote to memory of 4996	2644	cmd.exe	95
PID 2644 wrote to memory of 4996	2644	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3608
- C:\Windows\SysWOW64\comp.exe
  C:\Windows\SysWOW64\comp.exe
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4744
- - C:\Windows\SysWOW64\SearchIndexer.exe
    C:\Windows\SysWOW64\SearchIndexer.exe
    3⤵
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2936
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HJKECAAAFH.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3736
    - - C:\Users\Admin\AppData\Local\Temp\HJKECAAAFH.exe
        
        "C:\Users\Admin\AppData\Local\Temp\HJKECAAAFH.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:2400
      - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\SysWOW64\cmd.exe
        6⤵
        Drops file in Windows directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:2644
        
        C:\Windows\SysWOW64\explorer.exe
        
        C:\Windows\SysWOW64\explorer.exe
        7⤵
        
        PID:4996

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\RepairImport.docx

Filesize
19KB

MD5
1da30b9c273aba8df63806618a4d01c1

SHA1
029841e0c1f8a92f04094dd18e7aa4a09199e230

SHA256
32d68b9ca53e77fea0306623a1165ea13ccfe14162463e93a2df0a7e8c979592

SHA512
336356c8984c29dbf678767dc7cd258a5805f0f97a68e176bb222b4a381a4bd69694724c943f5f1e0a61be40dc18312ab9ffc1dadb6f894837350f4613b61095

Download Submit
C:\ProgramData\RestoreWrite.docx

Filesize
14KB

MD5
72407d691c2cff98fd3a9bd711c7d710

SHA1
c14f08ee716ac517fa67b7cf68c709f4175d2736

SHA256
49d6a5017376d2a6e0c3c30894b9c796fff2399fd92ad2173481df501b01cf0b

SHA512
ba35f0cddee91c5ec657036b7b5d76c6441774b4bdf12d4f4ca9984806a02dfdf8f911f4d55bbe96e2f4aafb7e794f494462da697872da4e94c48c8a8892f849

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
C:\Users\Admin\AppData\Local\Temp\3ca04955

Filesize
1.1MB

MD5
82e99a942be9e87d87605f37c5d844d2

SHA1
b3b99274d676558c3c4f5b6b45e3f871a908b07e

SHA256
3386e4e5d2af739636f374f2f2a18d07f5a3c33eab9eacd664b6ae5a8096e468

SHA512
9eeab9a65bae7145868b2d28be8538f7eba57b4167add8c4568a855d9c26d09667ea1436a74d300f146cbd4cd096539e29c98be121da4a4f72907561b2b32e29

Download Submit
C:\Users\Admin\AppData\Local\Temp\3fb09280

Filesize
1.1MB

MD5
7106f93155d69418352d372abf1433b5

SHA1
972163cb3a6ee6026ea67f8af8de3beaee16d2dc

SHA256
a52c3817f26e988f5ecb73955b18acb7692e7dd328ad6e4e37271839a50c1a8f

SHA512
a0c34732d9644ebcd4d9e334031d78775b3b7b617c7fa7134a43a70fd1a4db6e56d68bf95baa9803bff74bb8a6ebbd1c02188a929b138a562f95cfe63570d709

Download Submit
C:\Users\Admin\AppData\Local\Temp\43ed0324

Filesize
876KB

MD5
97a3924f38b6fe507dbcce5621dddd82

SHA1
ae07c5939a1135b359f9816651b0372f5d774df4

SHA256
366b99bf15bff92a31b7c2fdd8d2f27bab9c08eb1cd6f7c2dd6923b63912179c

SHA512
3c3e479fca7f16b984e72c4ad97fe6f541c386048f07bb88b43dda06e037eb98b7376a7fd3682d3522f396e27e6135488f2156f669448128edc2f8ec9075d270

Download Submit
C:\Users\Admin\AppData\Local\Temp\45e14d42

Filesize
869KB

MD5
207c07acbc7d9db91cbb46eecaae3b9d

SHA1
d3d988d6055a76056e30dbaf64ca6cae746ec057

SHA256
7f9f1e332e28a51208c83e873c53fd7552568a68a7c9e6aa11b281fff4df85aa

SHA512
8af60b63c9bc8f72185de045dbd92c9075278d36e2e48a6ea700672bd30170f9296edfd59dcffac7d894642094a067e6365aa61279b387ab4632ecfa1eed1784

Download Submit
C:\Users\Admin\AppData\Local\Temp\HJKECAAAFH.exe

Filesize
4.2MB

MD5
01b77cf729fa55834d4ea8be3602255f

SHA1
2371f13477843b45b3f12d058432b283ce264733

SHA256
76bb3021ce006df3ecf9740b1eb164bd1036472ae68fe262767d0025b94ecede

SHA512
5d85ef4e23d1de2e4b3a2a622e7062bc0356b1c7a89be8979d239fc3d04814434d992cac5788299a5e3b25ae9e0d41ca5662d9897d39524da75782d3380962d7

Download Submit
memory/2400-136-0x00007FFE2A770000-0x00007FFE2A965000-memory.dmp

Filesize
2.0MB

Download
memory/2400-129-0x0000000000850000-0x0000000000C8C000-memory.dmp

Filesize
4.2MB

Download
memory/2644-141-0x00007FFE2A770000-0x00007FFE2A965000-memory.dmp

Filesize
2.0MB

Download
memory/2644-142-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/2644-148-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/2644-149-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/2644-155-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/2936-32-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2936-125-0x0000000000340000-0x000000000057D000-memory.dmp

Filesize
2.2MB

Download
memory/2936-25-0x0000000000090000-0x0000000000144000-memory.dmp

Filesize
720KB

Download
memory/2936-24-0x00000000000CB000-0x00000000000D2000-memory.dmp

Filesize
28KB

Download
memory/2936-22-0x0000000000340000-0x000000000057D000-memory.dmp

Filesize
2.2MB

Download
memory/2936-103-0x0000000000340000-0x000000000057D000-memory.dmp

Filesize
2.2MB

Download
memory/2936-21-0x00007FFE2A770000-0x00007FFE2A965000-memory.dmp

Filesize
2.0MB

Download
memory/2936-20-0x0000000000340000-0x000000000057D000-memory.dmp

Filesize
2.2MB

Download
memory/3608-8-0x0000000073FD2000-0x0000000073FD4000-memory.dmp

Filesize
8KB

Download
memory/3608-6-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/3608-7-0x00007FFE2A770000-0x00007FFE2A965000-memory.dmp

Filesize
2.0MB

Download
memory/3608-0-0x00000000006E0000-0x0000000001359000-memory.dmp

Filesize
12.5MB

Download
memory/3608-9-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/3608-10-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/4744-13-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/4744-15-0x00007FFE2A770000-0x00007FFE2A965000-memory.dmp

Filesize
2.0MB

Download
memory/4744-16-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/4744-17-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/4744-19-0x0000000073FC0000-0x0000000073FD4000-memory.dmp

Filesize
80KB

Download
memory/4996-153-0x0000000000D20000-0x0000000000D88000-memory.dmp

Filesize
416KB

Download
memory/4996-156-0x00007FFE2A770000-0x00007FFE2A965000-memory.dmp

Filesize
2.0MB

Download
memory/4996-157-0x0000000000D20000-0x0000000000D88000-memory.dmp

Filesize
416KB

Download