stealc | 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04/07/2024, 12:12

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General

Target

1ed6f9d578e14edad0bf47edf1f6269f.exe
Size

5.5MB
MD5

1ed6f9d578e14edad0bf47edf1f6269f
SHA1

0e6546d7a7f237a4c094e24810fd4ab29ab6a970
SHA256

83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3
SHA512

7481e391bc9fd0b0a30ca7464847e6ab0bbaa4febb8bfb33407742fd2e90f7fb0d88fd2ab0dc49fa499864e16a234d6f910926944c2a3ce337d614351dccfd60
SSDEEP

98304:zeL9fRCBL/JS6w1PMcf5blPwJp003KOIupEAjlgJHc6:zeL9ROL/Eh/PQbaObEACl

Score

10^/10

stealc vidar spyware stealer

Malware Config

Extracted

Family

vidar

https://t.me/bu77un

https://steamcommunity.com/profiles/76561199730044335

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1

Signatures

Detect Vidar Stealer 1 IoCs

stealer

resource	yara_rule
behavioral1/memory/2504-69-0x0000000000400000-0x0000000000648000-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
Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
772	DGCBAFIJDG.exe

Loads dropped DLL 6 IoCs

pid	Process
2504	MSBuild.exe
2504	MSBuild.exe
2504	MSBuild.exe
2292	WerFault.exe
2292	WerFault.exe
2292	WerFault.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 1 IoCs

description	pid	Process	procid_target
PID 1312 set thread context of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2292	772	WerFault.exe	34

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2264	timeout.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1312	1ed6f9d578e14edad0bf47edf1f6269f.exe
1312	1ed6f9d578e14edad0bf47edf1f6269f.exe
1312	1ed6f9d578e14edad0bf47edf1f6269f.exe
2504	MSBuild.exe
2504	MSBuild.exe
2504	MSBuild.exe
2504	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 2620	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	28
PID 1312 wrote to memory of 2620	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	28
PID 1312 wrote to memory of 2620	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	28
PID 1312 wrote to memory of 2620	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	28
PID 1312 wrote to memory of 2496	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	29
PID 1312 wrote to memory of 2496	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	29
PID 1312 wrote to memory of 2496	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	29
PID 1312 wrote to memory of 2496	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	29
PID 1312 wrote to memory of 2648	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	30
PID 1312 wrote to memory of 2648	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	30
PID 1312 wrote to memory of 2648	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	30
PID 1312 wrote to memory of 2648	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	30
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 1312 wrote to memory of 2504	1312	1ed6f9d578e14edad0bf47edf1f6269f.exe	31
PID 2504 wrote to memory of 772	2504	MSBuild.exe	34
PID 2504 wrote to memory of 772	2504	MSBuild.exe	34
PID 2504 wrote to memory of 772	2504	MSBuild.exe	34
PID 2504 wrote to memory of 772	2504	MSBuild.exe	34
PID 772 wrote to memory of 2292	772	DGCBAFIJDG.exe	35
PID 772 wrote to memory of 2292	772	DGCBAFIJDG.exe	35
PID 772 wrote to memory of 2292	772	DGCBAFIJDG.exe	35
PID 772 wrote to memory of 2292	772	DGCBAFIJDG.exe	35
PID 2504 wrote to memory of 928	2504	MSBuild.exe	36
PID 2504 wrote to memory of 928	2504	MSBuild.exe	36
PID 2504 wrote to memory of 928	2504	MSBuild.exe	36
PID 2504 wrote to memory of 928	2504	MSBuild.exe	36
PID 928 wrote to memory of 2264	928	cmd.exe	38
PID 928 wrote to memory of 2264	928	cmd.exe	38
PID 928 wrote to memory of 2264	928	cmd.exe	38
PID 928 wrote to memory of 2264	928	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\1ed6f9d578e14edad0bf47edf1f6269f.exe
"C:\Users\Admin\AppData\Local\Temp\1ed6f9d578e14edad0bf47edf1f6269f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1312
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2620
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2496
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2648
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2504
- - C:\ProgramData\DGCBAFIJDG.exe
    "C:\ProgramData\DGCBAFIJDG.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:772
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 96
      4⤵
      Loads dropped DLL
      Program crash
      PID:2292
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\CFHIIEHJKKEC" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:928
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      Delays execution with timeout.exe
      PID:2264

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:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
8288090d9bbca8b200f30d71f9573d84

SHA1
640fb44db6213d7ca40602cade5860b8473f515a

SHA256
d2f403bc9106b9799a49cfb398db0bd52729b5e686cfaddf774b62e2ce9bcf92

SHA512
127b9549a1a27183d0754cb905a7b9c35acab56c51a0b94640a924f79c1f264c5a91cee787bf27efb2f80c725d906d7765a25c1d58fb256800ac477e5cf90d24

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3885.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\ProgramData\DGCBAFIJDG.exe

Filesize
937KB

MD5
168c5908924803d268d26965c32a5620

SHA1
9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3

SHA256
2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449

SHA512
749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1

Download Submit
memory/1312-42-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-36-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-35-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-6-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-8-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-18-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-44-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-64-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-62-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-60-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-65-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/1312-58-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-56-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-55-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-52-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-50-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-48-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-47-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-0-0x000000007436E000-0x000000007436F000-memory.dmp

Filesize
4KB

Download
memory/1312-41-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-10-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-38-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-5-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-32-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-30-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-28-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-26-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-24-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-23-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-20-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-16-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-14-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-12-0x00000000005B0000-0x00000000005C5000-memory.dmp

Filesize
84KB

Download
memory/1312-1-0x0000000000970000-0x0000000000EEA000-memory.dmp

Filesize
5.5MB

Download
memory/1312-2-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/1312-3-0x0000000004D30000-0x0000000004E14000-memory.dmp

Filesize
912KB

Download
memory/1312-4-0x00000000005B0000-0x00000000005CC000-memory.dmp

Filesize
112KB

Download
memory/1312-76-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2504-67-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2504-69-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2504-66-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2504-68-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download