vidar | 6ae1ebeb88e73be3fd5141deb9e85ed84203af1ef50cea7f2efc6be74816e52e

Analysis

max time kernel
39s
max time network
43s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
09/08/2024, 08:30

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General

Target
file.exe
Size 6.1MB
Sample240809-kd6g1asdla
SHA256 6ae1ebeb88e73be3fd5141deb9e85ed84203af1ef50cea7f2efc6be74816e52e
MD5 1971d66193a4acc5be2af2c1d34c2d4d
SHA1 e33f7bfb8aa73f1674e141590bfb823d0545312f
SHA512 5e1d5b88035b183ac51dba94861bd95fc593c879cd6c5156b0e9e61c7af80aea8549ab623fa54ea7c33a60ce4843f7c0dfe9f834da00c7c885ee1bb7996416ed
SSDEEP 98304:R5jFPIOFO/utnLvigHc5wqBg+HVkgq2KJ6l91N56OLyl:R5jNfnjPgBTBKM56yyl
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

https://steamcommunity.com/profiles/76561199751190313
https://t.me/pech0nk

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Signatures

Detect Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/2900-70-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral1/memory/2900-77-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral1/memory/2900-520-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral1/memory/2900-557-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7

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

Loads dropped DLL 2 IoCs

pid	Process
2900	MSBuild.exe
2900	MSBuild.exe

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2564 set thread context of 2900	2564	file.exe	29

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 4 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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.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	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
2940	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2900	MSBuild.exe
2900	MSBuild.exe
2900	MSBuild.exe
2900	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	file.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2564 wrote to memory of 2900	2564	file.exe	29
PID 2900 wrote to memory of 1824	2900	MSBuild.exe	32
PID 2900 wrote to memory of 1824	2900	MSBuild.exe	32
PID 2900 wrote to memory of 1824	2900	MSBuild.exe	32
PID 2900 wrote to memory of 1824	2900	MSBuild.exe	32
PID 1824 wrote to memory of 2940	1824	cmd.exe	34
PID 1824 wrote to memory of 2940	1824	cmd.exe	34
PID 1824 wrote to memory of 2940	1824	cmd.exe	34
PID 1824 wrote to memory of 2940	1824	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AECFCAAECBGD" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1824
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2940

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

Cab605B.tmp

Path C:\Users\Admin\AppData\Local\Temp\Cab605B.tmp
Size 70KB
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
SSDEEP 1536:gc257bHnClJ3v5mnAQEBP+bfnW8Ctl8G1G4eu76NWDdB34w18R5cBWcJAm68+Q:gp2ld5jPqW8LgeulxB3fgcEfDQ
MD5 SHA1 SHA512 SSDEEP

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Tar6109.tmp

Path C:\Users\Admin\AppData\Local\Temp\Tar6109.tmp
Size 181KB
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
SSDEEP 1536:aAZw/J+lCUsTRvsqgCyqWlUDNWdm1wpSru2A0XwjY/z02DTr3rmt6mZ:as2J+qTR0XCy/dmASru2AijbdG
MD5 SHA1 SHA512 SSDEEP

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mozglue.dll

Path \ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

Submit Download

nss3.dll

Path \ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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memory/2564-45-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-66-0x00000000748E0000-0x0000000074FCE000-memory.dmp

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memory/2564-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

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memory/2564-3-0x0000000005240000-0x00000000053B6000-memory.dmp

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memory/2564-4-0x0000000001060000-0x0000000001192000-memory.dmp

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memory/2564-5-0x0000000000620000-0x000000000063C000-memory.dmp

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memory/2564-9-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-17-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-7-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-65-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-63-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-61-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-59-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-57-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-55-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-39-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-53-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-51-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-49-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-48-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

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memory/2564-43-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-1-0x00000000011C0000-0x00000000017D4000-memory.dmp

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memory/2564-41-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-78-0x00000000748E0000-0x0000000074FCE000-memory.dmp

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memory/2564-35-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-34-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-31-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-29-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-27-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-25-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-23-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-21-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-19-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-15-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-13-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-11-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-6-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2564-37-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/2900-69-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/2900-70-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/2900-68-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/2900-67-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/2900-77-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/2900-520-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/2900-557-0x0000000000400000-0x0000000000643000-memory.dmp

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