Analysis

  • max time kernel
    182s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:35

General

  • Target

    c8fd7564c49731bbb330079c135b0388b2cb859b20d1e5a64a2c8d7127f70edf.exe

  • Size

    1.0MB

  • MD5

    49c06ada1e8434d06291d3616203b8ac

  • SHA1

    51e2e7f3dea1a6e0422e77a76083257620ee500d

  • SHA256

    c8fd7564c49731bbb330079c135b0388b2cb859b20d1e5a64a2c8d7127f70edf

  • SHA512

    dacfc11670e440f5f319ff9bf0d521de94e1aa4c0120aeec35c7b40a1565186c681628cc2d7bcc3050ecb3c8d056ea29b072705b5c14b8e7be21c3d4fc6a7c21

  • SSDEEP

    768:eyxqjQl/EMQt4Oei7RwsHxyP7nbxzOQdJL3rDv/aDfzekIfvnj1+h9/z:JxqjQ+P04wsmJCA3E7Ifvj1+h

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 3 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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8fd7564c49731bbb330079c135b0388b2cb859b20d1e5a64a2c8d7127f70edf.exe
    "C:\Users\Admin\AppData\Local\Temp\c8fd7564c49731bbb330079c135b0388b2cb859b20d1e5a64a2c8d7127f70edf.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:1244
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c8fd7564c49731bbb330079c135b0388b2cb859b20d1e5a64a2c8d7127f70edf.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c8fd7564c49731bbb330079c135b0388b2cb859b20d1e5a64a2c8d7127f70edf.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:2032

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\c8fd7564c49731bbb330079c135b0388b2cb859b20d1e5a64a2c8d7127f70edf.exe
    Filesize

    992KB

    MD5

    7e9c4033730d704faccd1ca0669b212d

    SHA1

    1e52dd897742361d7c497d19212a6aa12dd3f247

    SHA256

    409278a4ee415b3c8144c0e720e913d17b571155bb04a8f868b5af2a534bef50

    SHA512

    6fb609a8cf2b68ad818d5bdc51cac747d7046692a00f50e09b0c14626d9de278a5791f0b8111e7889cb0dd32bae6f4bb3d43bdf554d6eb6f270eea803e9f4493

  • \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\c8fd7564c49731bbb330079c135b0388b2cb859b20d1e5a64a2c8d7127f70edf.exe
    Filesize

    992KB

    MD5

    7e9c4033730d704faccd1ca0669b212d

    SHA1

    1e52dd897742361d7c497d19212a6aa12dd3f247

    SHA256

    409278a4ee415b3c8144c0e720e913d17b571155bb04a8f868b5af2a534bef50

    SHA512

    6fb609a8cf2b68ad818d5bdc51cac747d7046692a00f50e09b0c14626d9de278a5791f0b8111e7889cb0dd32bae6f4bb3d43bdf554d6eb6f270eea803e9f4493

  • \Users\Admin\AppData\Local\Temp\3582-490\c8fd7564c49731bbb330079c135b0388b2cb859b20d1e5a64a2c8d7127f70edf.exe
    Filesize

    992KB

    MD5

    7e9c4033730d704faccd1ca0669b212d

    SHA1

    1e52dd897742361d7c497d19212a6aa12dd3f247

    SHA256

    409278a4ee415b3c8144c0e720e913d17b571155bb04a8f868b5af2a534bef50

    SHA512

    6fb609a8cf2b68ad818d5bdc51cac747d7046692a00f50e09b0c14626d9de278a5791f0b8111e7889cb0dd32bae6f4bb3d43bdf554d6eb6f270eea803e9f4493

  • memory/1244-54-0x0000000076531000-0x0000000076533000-memory.dmp
    Filesize

    8KB

  • memory/1244-60-0x0000000002620000-0x000000000266B000-memory.dmp
    Filesize

    300KB

  • memory/1244-61-0x0000000002620000-0x000000000266B000-memory.dmp
    Filesize

    300KB

  • memory/1244-64-0x0000000002620000-0x000000000266B000-memory.dmp
    Filesize

    300KB

  • memory/2032-57-0x0000000000000000-mapping.dmp
  • memory/2032-62-0x0000000000400000-0x000000000044B000-memory.dmp
    Filesize

    300KB

  • memory/2032-65-0x0000000000400000-0x000000000044B000-memory.dmp
    Filesize

    300KB