Analysis

  • max time kernel
    20s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    07-06-2024 01:43

General

  • Target

    d13a9c092aa960e7886b92a348bd9d1ad74fbfbc9dbd298e9340c2a7bfc5cc1d.exe

  • Size

    1.8MB

  • MD5

    60d46827d5cf8c9dda4f8b83e32f8d65

  • SHA1

    66f7d7e9956cd971decd25ff2e7318600050d5b2

  • SHA256

    d13a9c092aa960e7886b92a348bd9d1ad74fbfbc9dbd298e9340c2a7bfc5cc1d

  • SHA512

    353adb486416c6767450c704a3f0256657dd29b532e116b5cbf2255be12718ac24d322056d86156b14069fbfd589d4cc2aa59438d1dcc4df08a50f42d2973999

  • SSDEEP

    24576:W7YfUB7F1931tbQYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbQYa8aesY3Ot4N7G/

Score
10/10

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/ta904ek

https://steamcommunity.com/profiles/76561199695752269

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

  • Detect Vidar Stealer 8 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d13a9c092aa960e7886b92a348bd9d1ad74fbfbc9dbd298e9340c2a7bfc5cc1d.exe
    "C:\Users\Admin\AppData\Local\Temp\d13a9c092aa960e7886b92a348bd9d1ad74fbfbc9dbd298e9340c2a7bfc5cc1d.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\kat3736.tmp
      C:\Users\Admin\AppData\Local\Temp\kat3736.tmp
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    342B

    MD5

    038c12614ad4541b7f07896f705fba9f

    SHA1

    2046e9cf1ff08dba039ca4df605d89415fcd6930

    SHA256

    6eb7fe1e80f67a5c523feff19b9d0413b50e29227f1b83950b0891a721b0a859

    SHA512

    56479cabd10fb980ee17b51bd497dceb6694867f089f9d7185324febfc1520d991742a0f08447f79495f8ac51106982c24799152e4c2cff23e3e5380a883f88e

  • C:\Users\Admin\AppData\Local\Temp\Tar5401.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Local\Temp\kat3736.tmp

    Filesize

    512KB

    MD5

    b72c302f94af349153c8a3bf55c228ae

    SHA1

    ee2cf2bd11f2e965e90fddf5f94faa74d209468b

    SHA256

    40cf30efe0ffc8875997d5819e2c501046f0a14ba68201fea9250a4d2b514581

    SHA512

    ef7a1aa5fb9c04f1e1b403aa657ec84946eb3fa5c136f5c8670e41d375395b794e1a1b4beeaf7c65ae61aa8fcad386bd71aed3e1c3ff6533cf49fb929ae4a607

  • C:\Users\Admin\AppData\Local\Temp\kat3736.tmp

    Filesize

    448KB

    MD5

    d7d3e9e68f500a5362ef855382d5934b

    SHA1

    740495877cbcda9c61c8eb1ce3cb0c0f20738a81

    SHA256

    8cdc50bc308edd6d0f70d7c8203f0ef469daaa62ae801a00c93e6b9160fef772

    SHA512

    512f5d5764050274d5beb6c966c787eb50a9850ec4c4886cda14f3a912dc627d29d2cac5db7f825500041a47ce65ecc4e8f728dc934c748f6575ae17d4c2cf89

  • memory/1700-20-0x0000000000400000-0x00000000005CE000-memory.dmp

    Filesize

    1.8MB

  • memory/1700-0-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/1700-2-0x00000000032F0000-0x000000000343C000-memory.dmp

    Filesize

    1.3MB

  • memory/2944-15-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-9-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-11-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-17-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-18-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-22-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-23-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-14-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-171-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-192-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-193-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-216-0x0000000014AA0000-0x0000000014CFF000-memory.dmp

    Filesize

    2.4MB

  • memory/2944-230-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB

  • memory/2944-251-0x0000000000400000-0x0000000000649000-memory.dmp

    Filesize

    2.3MB