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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/03/2024, 20:50

General

  • Target

    d7159e3d852ef6674617f30e7470d8e7.exe

  • Size

    134KB

  • MD5

    d7159e3d852ef6674617f30e7470d8e7

  • SHA1

    53a6afcdba7cad96bc52d308dcdc64ac1dfb3365

  • SHA256

    0d9439aab5cf0d5b5bd75215fb2e373b67b6252470789596a1272ed918432960

  • SHA512

    c57ded08c75e84fc04c4617d6d94e52d07b4b9d752bc33df2863ab0fdc91c2b9da37e6ff8e0e7f4f9d20d87ce82333f742ea87a29459c1cda043f8b870ada902

  • SSDEEP

    3072:vnOn7t7XpdpCCTg/sxFgJceq8KzCK8djotcRXojk:vKpdcCrT/8KOnEt5k

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d7159e3d852ef6674617f30e7470d8e7.exe
    "C:\Users\Admin\AppData\Local\Temp\d7159e3d852ef6674617f30e7470d8e7.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3260
    • C:\Users\Admin\AppData\Local\Temp\nsb5759.tmp\downloadmr.exe
      C:\Users\Admin\AppData\Local\Temp\nsb5759.tmp\downloadmr.exe /e57748 /u4dc9054e-38b0-4614-bdd5-20605bc06f26
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:1244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsb5759.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • C:\Users\Admin\AppData\Local\Temp\nsb5759.tmp\downloadmr.exe

    Filesize

    135KB

    MD5

    fb753ca8f8abe185c761c5a729552f05

    SHA1

    d87aeac1b5c45792997dd6da20687c2a60072665

    SHA256

    d9b21b59169dc040c604bf10bf53521633fbe54911a32ae9ea78136297f3c454

    SHA512

    271be08c81bc23ecf3ab0c6355f7c171cbd227b773b1cde3ff6389ea01246952bee4d8c213f4e2428ff6f62510dfbe609c66f079e0d4b03c148894989061ac15

  • memory/1244-13-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/1244-14-0x0000000000D50000-0x0000000000D60000-memory.dmp

    Filesize

    64KB

  • memory/1244-15-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/1244-26-0x0000000000D50000-0x0000000000D60000-memory.dmp

    Filesize

    64KB

  • memory/1244-27-0x0000000000D50000-0x0000000000D60000-memory.dmp

    Filesize

    64KB

  • memory/1244-28-0x0000000000D50000-0x0000000000D60000-memory.dmp

    Filesize

    64KB

  • memory/1244-30-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/3260-34-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB