Analysis

  • max time kernel
    117s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240319-en
  • resource tags

    arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 18:01

General

  • Target

    1c54f349aaeae74b7f43ebf9d27a8d41a4eb884bc5760cfb8bb0dd9b69543f43.exe

  • Size

    141KB

  • MD5

    d779fea2946e9e1caeb44ec108d56157

  • SHA1

    8fbe91fc70c039a306e27ed04acc1c0a8bc9ad26

  • SHA256

    1c54f349aaeae74b7f43ebf9d27a8d41a4eb884bc5760cfb8bb0dd9b69543f43

  • SHA512

    f116c6e4023fd36a9e98e79f83c7ab327d70ac7ebd2ab360ae830bcdf0b22e85f2abdf59aeb4c6be1aae1f4298e5c16c307880c3758834b5c3d6289443cff789

  • SSDEEP

    3072:sr85CAAVytTGUkO9w1ma8CXHaCbzrUPuTS8:k9bUeHVPpS8

Malware Config

Signatures

  • Detect Neshta payload 5 IoCs
  • Neshta

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

  • RevengeRAT

    Remote-access trojan with a wide range of capabilities.

  • RevengeRat Executable 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies system executable filetype association 2 TTPs 1 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c54f349aaeae74b7f43ebf9d27a8d41a4eb884bc5760cfb8bb0dd9b69543f43.exe
    "C:\Users\Admin\AppData\Local\Temp\1c54f349aaeae74b7f43ebf9d27a8d41a4eb884bc5760cfb8bb0dd9b69543f43.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1460
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1c54f349aaeae74b7f43ebf9d27a8d41a4eb884bc5760cfb8bb0dd9b69543f43.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1c54f349aaeae74b7f43ebf9d27a8d41a4eb884bc5760cfb8bb0dd9b69543f43.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2200
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 376
        3⤵
          PID:2720

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Event Triggered Execution

    1
    T1546

    Change Default File Association

    1
    T1546.001

    Privilege Escalation

    Event Triggered Execution

    1
    T1546

    Change Default File Association

    1
    T1546.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe
      Filesize

      547KB

      MD5

      cf6c595d3e5e9667667af096762fd9c4

      SHA1

      9bb44da8d7f6457099cb56e4f7d1026963dce7ce

      SHA256

      593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

      SHA512

      ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

    • \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\1c54f349aaeae74b7f43ebf9d27a8d41a4eb884bc5760cfb8bb0dd9b69543f43.exe
      Filesize

      100KB

      MD5

      a5e990167b734b8fcb3f4681c60e60ef

      SHA1

      e4a62e39d13937751e499bbfcf31a9b03c3ea47c

      SHA256

      89d2b2c946af9d0c77252edca40a9a3b850d12e35124b9c6b5d761537c90116b

      SHA512

      93d052d1b97f1353867d96dc39a84f570bae861cd200534f06e8cfc2257a2333e86c1bc7791ba6365a651dc498ebcfdd6fd19ee6f21b923a4e039e90f6f556d1

    • memory/1460-86-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1460-88-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1460-90-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1460-92-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2200-11-0x000007FEF5B40000-0x000007FEF64DD000-memory.dmp
      Filesize

      9.6MB

    • memory/2200-12-0x0000000001FC0000-0x0000000002040000-memory.dmp
      Filesize

      512KB

    • memory/2200-87-0x000007FEF5B40000-0x000007FEF64DD000-memory.dmp
      Filesize

      9.6MB

    • memory/2200-89-0x0000000001FC0000-0x0000000002040000-memory.dmp
      Filesize

      512KB

    • memory/2720-13-0x0000000000330000-0x0000000000331000-memory.dmp
      Filesize

      4KB