Analysis

  • max time kernel
    143s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2023 12:23

General

  • Target

    8bcefafd38c46bedef87a84356e77b06.exe

  • Size

    670KB

  • MD5

    8bcefafd38c46bedef87a84356e77b06

  • SHA1

    a6cc5deacdc204198bb1e22a8915420c32006f25

  • SHA256

    de3bc3bc66f1567261e1b456ec97dec031e4041ed80ce7c7d484592c8001ac1c

  • SHA512

    28d707105b3ef3f4a00814252632bfa646302bb47179bde3c1794fb6ce7fcb143e44df712daa620dada5df03159339bebf3a5f824f90fff0868ca4b7c4fc0336

  • SSDEEP

    12288:aEGLpQW3wNNYp8iHzrF7FVpXu9cMoE7zR0ywfPrk/Lwx/0ZxoN2UN0akHkTaHCEo:aEk7AnurFRVVuJNXiyEHxYeNUakTHCox

Malware Config

Extracted

Family

vidar

Version

40.5

Botnet

706

C2

https://gheorghip.tumblr.com/

Attributes
  • profile_id

    706

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8bcefafd38c46bedef87a84356e77b06.exe
    "C:\Users\Admin\AppData\Local\Temp\8bcefafd38c46bedef87a84356e77b06.exe"
    1⤵
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:2108

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab9B19.tmp
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar9B6A.tmp
    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2108-1-0x0000000002CA0000-0x0000000002DA0000-memory.dmp
    Filesize

    1024KB

  • memory/2108-2-0x0000000002BC0000-0x0000000002C91000-memory.dmp
    Filesize

    836KB

  • memory/2108-3-0x0000000000400000-0x0000000002BB2000-memory.dmp
    Filesize

    39.7MB

  • memory/2108-77-0x0000000000400000-0x0000000002BB2000-memory.dmp
    Filesize

    39.7MB

  • memory/2108-79-0x0000000002CA0000-0x0000000002DA0000-memory.dmp
    Filesize

    1024KB

  • memory/2108-80-0x0000000002BC0000-0x0000000002C91000-memory.dmp
    Filesize

    836KB