Analysis

  • max time kernel
    95s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2022 11:52

General

  • Target

    07fb4c0e3be09811519e581efdbbc153f6170b9157e86a2a5c4bb6027462594a.exe

  • Size

    191KB

  • MD5

    10ffa9905d6f661b8e19c12f0f3e12da

  • SHA1

    d2dcbdfef0715ef1cade75901a10a2108fc18cc3

  • SHA256

    07fb4c0e3be09811519e581efdbbc153f6170b9157e86a2a5c4bb6027462594a

  • SHA512

    f511079b68ad1940d868381a01f4bfd6fbe0fa7eaeca240e86f6a66873233a41d178785fdf4c1acb5c1284be745765c030b9ebadafa24f15215e79040c4c2b13

  • SSDEEP

    3072:sr85ClcnxetZbDgE3Sa4SequcnZnx8DYZPJZ9MnTvJm:k9l66bbSa4x6fIYllMTQ

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 use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\07fb4c0e3be09811519e581efdbbc153f6170b9157e86a2a5c4bb6027462594a.exe
    "C:\Users\Admin\AppData\Local\Temp\07fb4c0e3be09811519e581efdbbc153f6170b9157e86a2a5c4bb6027462594a.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:268
    • C:\Users\Admin\AppData\Local\Temp\3582-490\07fb4c0e3be09811519e581efdbbc153f6170b9157e86a2a5c4bb6027462594a.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\07fb4c0e3be09811519e581efdbbc153f6170b9157e86a2a5c4bb6027462594a.exe"
      2⤵
      • Executes dropped EXE
      PID:308

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\07fb4c0e3be09811519e581efdbbc153f6170b9157e86a2a5c4bb6027462594a.exe
    Filesize

    150KB

    MD5

    7935dfabc178d1732439a4e0487eb1ab

    SHA1

    c168a73df827dc64fe22974b9e87a432cb06d508

    SHA256

    75344d55930e6608bddcfbc3c40e513e4f5b8f2f2e032a1bcb91515329f5a2b0

    SHA512

    f446b9dafec599fd671d665c11a32ee4d20d7a7451d7233b6ed2bdc26280c471826387d41dc49d7fec4bcd2658ab339143d158ce760c523c8a06012209465610

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

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\07fb4c0e3be09811519e581efdbbc153f6170b9157e86a2a5c4bb6027462594a.exe
    Filesize

    150KB

    MD5

    7935dfabc178d1732439a4e0487eb1ab

    SHA1

    c168a73df827dc64fe22974b9e87a432cb06d508

    SHA256

    75344d55930e6608bddcfbc3c40e513e4f5b8f2f2e032a1bcb91515329f5a2b0

    SHA512

    f446b9dafec599fd671d665c11a32ee4d20d7a7451d7233b6ed2bdc26280c471826387d41dc49d7fec4bcd2658ab339143d158ce760c523c8a06012209465610

  • memory/268-54-0x0000000075C81000-0x0000000075C83000-memory.dmp
    Filesize

    8KB

  • memory/308-56-0x0000000000000000-mapping.dmp