Analysis

  • max time kernel
    152s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    29-01-2022 04:09

General

  • Target

    9f435dd076aa4bafc2bceacf41192c177970ece149d2393cb0b4ab5281de03bb.exe

  • Size

    2.4MB

  • MD5

    57c67d1d99284584c0caeeb4c986eb08

  • SHA1

    bd6bdff5dac86165ec33b5c7dcb639990b33ed14

  • SHA256

    9f435dd076aa4bafc2bceacf41192c177970ece149d2393cb0b4ab5281de03bb

  • SHA512

    2ff29f1631ed94a6f91a0a790da537445b087793582013a552c4f2670d3ddc2908e7f73f44d41fa9ec83e304dffba78071f64df1d7c023836023253c27bc1084

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f435dd076aa4bafc2bceacf41192c177970ece149d2393cb0b4ab5281de03bb.exe
    "C:\Users\Admin\AppData\Local\Temp\9f435dd076aa4bafc2bceacf41192c177970ece149d2393cb0b4ab5281de03bb.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9f435dd076aa4bafc2bceacf41192c177970ece149d2393cb0b4ab5281de03bb.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9f435dd076aa4bafc2bceacf41192c177970ece149d2393cb0b4ab5281de03bb.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1364

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\9f435dd076aa4bafc2bceacf41192c177970ece149d2393cb0b4ab5281de03bb.exe
    MD5

    05fdb73ffbce4315612b9f7da846d40a

    SHA1

    23cc558b559a1892c32ce4a08bc5fb3c09d31cd9

    SHA256

    995cafe282d2fea88f5c762390c6f8b2d69c19af0e040deaec80aed380c3ca20

    SHA512

    64c850a323a67838b784ab596fe29b6bdc28747fcba78f3293f948003e6ae5d5d78b245ad08f34c9f697082a4189667eb00d234f3733728edbe0f302831be520

  • C:\Users\Admin\AppData\Local\Temp\3582-490\9f435dd076aa4bafc2bceacf41192c177970ece149d2393cb0b4ab5281de03bb.exe
    MD5

    05fdb73ffbce4315612b9f7da846d40a

    SHA1

    23cc558b559a1892c32ce4a08bc5fb3c09d31cd9

    SHA256

    995cafe282d2fea88f5c762390c6f8b2d69c19af0e040deaec80aed380c3ca20

    SHA512

    64c850a323a67838b784ab596fe29b6bdc28747fcba78f3293f948003e6ae5d5d78b245ad08f34c9f697082a4189667eb00d234f3733728edbe0f302831be520

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\9f435dd076aa4bafc2bceacf41192c177970ece149d2393cb0b4ab5281de03bb.exe
    MD5

    05fdb73ffbce4315612b9f7da846d40a

    SHA1

    23cc558b559a1892c32ce4a08bc5fb3c09d31cd9

    SHA256

    995cafe282d2fea88f5c762390c6f8b2d69c19af0e040deaec80aed380c3ca20

    SHA512

    64c850a323a67838b784ab596fe29b6bdc28747fcba78f3293f948003e6ae5d5d78b245ad08f34c9f697082a4189667eb00d234f3733728edbe0f302831be520

  • memory/944-54-0x0000000076911000-0x0000000076913000-memory.dmp
    Filesize

    8KB

  • memory/1364-58-0x0000000002260000-0x0000000002262000-memory.dmp
    Filesize

    8KB

  • memory/1364-59-0x000007FEF29E0000-0x000007FEF3A76000-memory.dmp
    Filesize

    16.6MB

  • memory/1364-61-0x0000000002266000-0x0000000002285000-memory.dmp
    Filesize

    124KB

  • memory/1364-62-0x0000000002285000-0x0000000002286000-memory.dmp
    Filesize

    4KB

  • memory/1364-63-0x0000000002286000-0x0000000002287000-memory.dmp
    Filesize

    4KB