stealc | d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71

Analysis

max time kernel
65s
max time network
143s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
13-09-2024 04:46

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General

Target

d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe
Size

206KB
MD5

a991933b29e1203af5c3df1d62d0b247
SHA1

0979ff2723370bbd48ea50d59413a1741e4edd01
SHA256

d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71
SHA512

7bde49a84b7feb8dec2330a7b83a7adc8e65ea13cb6521b267e8626c8ba10f2e383b37747b08a7df1c2aa05410ee80539aae555f8f4d0901cb4992ac16087518
SSDEEP

6144:9B3OtHI5KcJnfDZvlHsH8aIhvrtSPje6XTEO:9kopdlvi8aixweoEO

Score

10^/10

stealc vidar default credential_access discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

default

http://46.8.231.109

Attributes

url_path
/c4754d4f680ead72.php

Extracted

Family

vidar

https://t.me/afsgsdgqr4r

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

Detect Vidar Stealer 7 IoCs

stealer

resource	yara_rule
behavioral2/memory/2536-122-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2536-124-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2536-126-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2536-139-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2536-140-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2536-156-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2536-157-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Downloads MZ/PE file

Executes dropped EXE 3 IoCs

pid	Process
3028	AdminIDBFHCGCGD.exe
3840	6HCH47WIFK7FWAKGA7V.exe
3984	AdminGHCAAAAKJJ.exe

Loads dropped DLL 2 IoCs

pid	Process
2184	RegAsm.exe
2184	RegAsm.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

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

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4484 set thread context of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 3028 set thread context of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 3984 set thread context of 2536	3984	AdminGHCAAAAKJJ.exe	96

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Google\Chrome\Application\6HCH47WIFK7FWAKGA7V.exe	RegAsm.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AdminIDBFHCGCGD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6HCH47WIFK7FWAKGA7V.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AdminGHCAAAAKJJ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2184	RegAsm.exe
2184	RegAsm.exe
2184	RegAsm.exe
2184	RegAsm.exe
2536	RegAsm.exe
2536	RegAsm.exe
2536	RegAsm.exe
2536	RegAsm.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 4484 wrote to memory of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 4484 wrote to memory of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 4484 wrote to memory of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 4484 wrote to memory of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 4484 wrote to memory of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 4484 wrote to memory of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 4484 wrote to memory of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 4484 wrote to memory of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 4484 wrote to memory of 2184	4484	d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe	82
PID 2184 wrote to memory of 1556	2184	RegAsm.exe	84
PID 2184 wrote to memory of 1556	2184	RegAsm.exe	84
PID 2184 wrote to memory of 1556	2184	RegAsm.exe	84
PID 1556 wrote to memory of 3028	1556	cmd.exe	86
PID 1556 wrote to memory of 3028	1556	cmd.exe	86
PID 1556 wrote to memory of 3028	1556	cmd.exe	86
PID 3028 wrote to memory of 2752	3028	AdminIDBFHCGCGD.exe	88
PID 3028 wrote to memory of 2752	3028	AdminIDBFHCGCGD.exe	88
PID 3028 wrote to memory of 2752	3028	AdminIDBFHCGCGD.exe	88
PID 3028 wrote to memory of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 3028 wrote to memory of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 3028 wrote to memory of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 3028 wrote to memory of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 3028 wrote to memory of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 3028 wrote to memory of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 3028 wrote to memory of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 3028 wrote to memory of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 3028 wrote to memory of 4316	3028	AdminIDBFHCGCGD.exe	89
PID 4316 wrote to memory of 3840	4316	RegAsm.exe	90
PID 4316 wrote to memory of 3840	4316	RegAsm.exe	90
PID 4316 wrote to memory of 3840	4316	RegAsm.exe	90
PID 2184 wrote to memory of 4768	2184	RegAsm.exe	92
PID 2184 wrote to memory of 4768	2184	RegAsm.exe	92
PID 2184 wrote to memory of 4768	2184	RegAsm.exe	92
PID 4768 wrote to memory of 3984	4768	cmd.exe	94
PID 4768 wrote to memory of 3984	4768	cmd.exe	94
PID 4768 wrote to memory of 3984	4768	cmd.exe	94
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96
PID 3984 wrote to memory of 2536	3984	AdminGHCAAAAKJJ.exe	96

C:\Users\Admin\AppData\Local\Temp\d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe
"C:\Users\Admin\AppData\Local\Temp\d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4484
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2184
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminIDBFHCGCGD.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1556
  - - C:\Users\AdminIDBFHCGCGD.exe
      "C:\Users\AdminIDBFHCGCGD.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3028
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        
        PID:2752
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        Drops file in Program Files directory
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:4316
      - C:\Program Files\Google\Chrome\Application\6HCH47WIFK7FWAKGA7V.exe
        
        "C:\Program Files\Google\Chrome\Application\6HCH47WIFK7FWAKGA7V.exe"
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:3840
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminGHCAAAAKJJ.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4768
  - - C:\Users\AdminGHCAAAAKJJ.exe
      "C:\Users\AdminGHCAAAAKJJ.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3984
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        
        PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Google\Chrome\Application\6HCH47WIFK7FWAKGA7V.exe

Filesize
63KB

MD5
42ab6e035df99a43dbb879c86b620b91

SHA1
c6e116569d17d8142dbb217b1f8bfa95bc148c38

SHA256
53195987d396986ebcb20425ac130e78ad308fdbd918f33f3fd92b99abda314b

SHA512
2e79de2d394ad33023d71611bb728b254aa4680b5a3a1ef5282b1155ddfaa2f3585c840a6700dfe0d1a276dac801298431f0187086d2e8f96b22f6c808fb97e5

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\AdminGHCAAAAKJJ.exe

Filesize
283KB

MD5
257eb69581fd80827932ed434d32470f

SHA1
ef7f9f0b82f45fc93ca503f4eadd8e423bc94887

SHA256
4a16685ec6d408bafc872fac39012bb670ff7bba818a7af9f7dd411a383869dd

SHA512
2eb0f6cc296748dc15925881a6e8a5895be4639095cb2996e740512caba44022c8a3ef39c821f1ad048de2c2eb7b10a9e673a9e0f1667e0e64640ec31a1ee1e0

Download Submit
C:\Users\AdminIDBFHCGCGD.exe

Filesize
328KB

MD5
f916bba8a45c9c57170e2fe5364a6b89

SHA1
c9b2e0d09ce89f2109eaac7f6a2fa2ad4756a8c3

SHA256
edb78427476e3d5a72e41e9f35ef2ef433a16feb5b392176732fa8d5527b2655

SHA512
b2f30c48ba7afda0b777101d0ba67cc02b3f76b53da565f0a4cb9a56d52a04925a7f3cacd895a5c3b5ac691b490af83cc9707755a7c1e4fa9862c2828454f87f

Download Submit
memory/2184-119-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2184-7-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2184-10-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2184-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2184-11-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2536-122-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2536-124-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2536-157-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2536-156-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2536-143-0x0000000022610000-0x000000002286F000-memory.dmp

Filesize
2.4MB

Download
memory/2536-140-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2536-139-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2536-126-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3028-107-0x0000000071B60000-0x0000000072311000-memory.dmp

Filesize
7.7MB

Download
memory/3028-94-0x0000000000580000-0x00000000005D6000-memory.dmp

Filesize
344KB

Download
memory/3028-95-0x0000000071B6E000-0x0000000071B6F000-memory.dmp

Filesize
4KB

Download
memory/3028-158-0x0000000071B60000-0x0000000072311000-memory.dmp

Filesize
7.7MB

Download
memory/3840-113-0x0000000000D90000-0x0000000000DA2000-memory.dmp

Filesize
72KB

Download
memory/3984-118-0x0000000000420000-0x000000000046A000-memory.dmp

Filesize
296KB

Download
memory/4316-108-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/4316-98-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/4316-101-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/4484-1-0x0000000000070000-0x00000000000A8000-memory.dmp

Filesize
224KB

Download
memory/4484-0-0x000000007458E000-0x000000007458F000-memory.dmp

Filesize
4KB

Download
memory/4484-9-0x0000000074580000-0x0000000074D31000-memory.dmp

Filesize
7.7MB

Download