Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-07-2023 13:13

General

  • Target

    Sevkiyat-Bilgisi..exe

  • Size

    1.4MB

  • MD5

    35978426c438be50ff71a09d303054e3

  • SHA1

    99a8f137febd7a34cdcd6f3f867a02666cdb35be

  • SHA256

    866b5bcc067af55b26fae2013af4310fb27381a585e720a1dd39c722f1a18c19

  • SHA512

    5f1b82c685f8744c38d01e85c4f7a865cd54686c062e4de83f80bac46b3e0007ee571d5ee564a22aec60ea81c9e21b50f554f7e046e7a126d93214ad54b1097b

  • SSDEEP

    24576:CNA3R5drXP/2ai/O+Bo2DxkmgP6L7Z8D5b2bM5MccqBhn1urp+Cq:b53V1kioL7ZccM5M214od

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

KBop

C2

kolptyubeatcam.sytes.net:64594

fronpeatcam.publicvm.com:64595

fronadeatcam.publicvm.com:64595

fronadeatcam.sytes.net:64595

Mutex

QSR_MUTEX_z6cdb40DnEoyUzOwXW

Attributes
  • encryption_key

    jem6XrSkWxQgjosAOUlN

  • install_name

    jres.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    jdm

  • subdirectory

    oilk

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sevkiyat-Bilgisi..exe
    "C:\Users\Admin\AppData\Local\Temp\Sevkiyat-Bilgisi..exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2664
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\twikfhn.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Users\Admin\AppData\Local\Temp\eisdvbhg.sfx.exe
        eisdvbhg.sfx.exe -prhndloaxzbcgscvmhjfjgBbsdirhndmkaloybdtyuiolfadfdyehngfszafugyRhvertFvbdkoS -dC:\Users\Admin\AppData\Local\Temp
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:100
        • C:\Users\Admin\AppData\Local\Temp\eisdvbhg.exe
          "C:\Users\Admin\AppData\Local\Temp\eisdvbhg.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2088
          • C:\Users\Admin\AppData\Local\Temp\eisdvbhg.exe
            C:\Users\Admin\AppData\Local\Temp\eisdvbhg.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2388
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks" /create /tn "jdm" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\eisdvbhg.exe" /rl HIGHEST /f
              6⤵
              • Creates scheduled task(s)
              PID:1464

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\eisdvbhg.exe

    Filesize

    755KB

    MD5

    a1aada29638b3f8f499e6998b56c6d35

    SHA1

    e58093de317aab07ee516a3628eb118828bc81e8

    SHA256

    639e7498c22d26aa282595a56f8098634f09675844ca8c95f3a4f907ecb604aa

    SHA512

    356d6d9f6b9e7eaf714fb931bb80371980fe6283226c3ada27c5f9279580b13397ce0cf3c1b6dece054f13eb063bcf4475dc2bae3caf44721f75961be84b6da4

  • C:\Users\Admin\AppData\Local\Temp\eisdvbhg.exe

    Filesize

    755KB

    MD5

    a1aada29638b3f8f499e6998b56c6d35

    SHA1

    e58093de317aab07ee516a3628eb118828bc81e8

    SHA256

    639e7498c22d26aa282595a56f8098634f09675844ca8c95f3a4f907ecb604aa

    SHA512

    356d6d9f6b9e7eaf714fb931bb80371980fe6283226c3ada27c5f9279580b13397ce0cf3c1b6dece054f13eb063bcf4475dc2bae3caf44721f75961be84b6da4

  • C:\Users\Admin\AppData\Local\Temp\eisdvbhg.exe

    Filesize

    755KB

    MD5

    a1aada29638b3f8f499e6998b56c6d35

    SHA1

    e58093de317aab07ee516a3628eb118828bc81e8

    SHA256

    639e7498c22d26aa282595a56f8098634f09675844ca8c95f3a4f907ecb604aa

    SHA512

    356d6d9f6b9e7eaf714fb931bb80371980fe6283226c3ada27c5f9279580b13397ce0cf3c1b6dece054f13eb063bcf4475dc2bae3caf44721f75961be84b6da4

  • C:\Users\Admin\AppData\Local\Temp\eisdvbhg.exe

    Filesize

    755KB

    MD5

    a1aada29638b3f8f499e6998b56c6d35

    SHA1

    e58093de317aab07ee516a3628eb118828bc81e8

    SHA256

    639e7498c22d26aa282595a56f8098634f09675844ca8c95f3a4f907ecb604aa

    SHA512

    356d6d9f6b9e7eaf714fb931bb80371980fe6283226c3ada27c5f9279580b13397ce0cf3c1b6dece054f13eb063bcf4475dc2bae3caf44721f75961be84b6da4

  • C:\Users\Admin\AppData\Local\Temp\eisdvbhg.sfx.exe

    Filesize

    1.1MB

    MD5

    9ede8b3bae317b0dcdd022b9bf2e44ef

    SHA1

    b43f2dd1446bc9e0e6237d65f4007506ff7393cf

    SHA256

    9015f6d5d073c60607d3ca4db876da2cc320d15eb922f38170e616c4e0de6fe9

    SHA512

    8b24fd190d6d53c61ebd6a9d868b8bbf521604b79dccb8d3bae0297d04794abd828f57cebd01b444a2d566d4c61704f819f0ec69d219f0db7d57331d45b42d06

  • C:\Users\Admin\AppData\Local\Temp\eisdvbhg.sfx.exe

    Filesize

    1.1MB

    MD5

    9ede8b3bae317b0dcdd022b9bf2e44ef

    SHA1

    b43f2dd1446bc9e0e6237d65f4007506ff7393cf

    SHA256

    9015f6d5d073c60607d3ca4db876da2cc320d15eb922f38170e616c4e0de6fe9

    SHA512

    8b24fd190d6d53c61ebd6a9d868b8bbf521604b79dccb8d3bae0297d04794abd828f57cebd01b444a2d566d4c61704f819f0ec69d219f0db7d57331d45b42d06

  • C:\Users\Admin\AppData\Local\Temp\twikfhn.bat

    Filesize

    18KB

    MD5

    10ab99c0ccba81a7ed54d0d1dfe7c27d

    SHA1

    b95309a259f822aca0421106ab0b8c8de6815f6c

    SHA256

    dfa6316ed91baf1d849b5eb9875ccde9b9e573c02294d6ce87023c7c108d8723

    SHA512

    6a218d199e49f4505d10c2e048941836bd4d15a318174c5ca31b675556de77a4403b73e9b649a8c783d4c74115207ff8335e92379f677ef987ff0ed464626782

  • memory/2088-157-0x0000000004FA0000-0x000000000503C000-memory.dmp

    Filesize

    624KB

  • memory/2088-156-0x0000000004E90000-0x0000000004EA0000-memory.dmp

    Filesize

    64KB

  • memory/2088-155-0x0000000000470000-0x0000000000534000-memory.dmp

    Filesize

    784KB

  • memory/2388-158-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2388-161-0x0000000005B20000-0x00000000060C4000-memory.dmp

    Filesize

    5.6MB

  • memory/2388-162-0x0000000005650000-0x00000000056E2000-memory.dmp

    Filesize

    584KB

  • memory/2388-163-0x0000000005730000-0x0000000005740000-memory.dmp

    Filesize

    64KB

  • memory/2388-164-0x0000000005AB0000-0x0000000005B16000-memory.dmp

    Filesize

    408KB

  • memory/2388-165-0x0000000006770000-0x0000000006782000-memory.dmp

    Filesize

    72KB

  • memory/2388-166-0x0000000006CE0000-0x0000000006D1C000-memory.dmp

    Filesize

    240KB

  • memory/2388-167-0x0000000005730000-0x0000000005740000-memory.dmp

    Filesize

    64KB

  • memory/2388-168-0x0000000006EA0000-0x0000000006EAA000-memory.dmp

    Filesize

    40KB