Analysis

  • max time kernel
    69s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    18-08-2022 09:00

General

  • Target

    Remittance_Advice_BofA.xls

  • Size

    129KB

  • MD5

    ef647821a5b83276209b316934bad8ab

  • SHA1

    1e01b86c162aad282434c34d13147dd404e8d59a

  • SHA256

    adbbd78d5c79c11d3e5f723085b3d5d3fb2a34047a3e2a8791cdd764b78b08f7

  • SHA512

    a2d6cb284376ac52fbeaf895b85e7924b17248b4af8b057c5c24990430963aa0a04a427a3aa2634e4d8594579c23411afa5bbc446933f2fee2bf65dd60e4f55c

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Remittance_Advice_BofA.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1972
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\rkWwH.js"
      2⤵
      • Process spawned unexpected child process
      PID:1792

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\rkWwH.js
    Filesize

    695B

    MD5

    a51c8b5b1cc6760162e64ad7a78f2a58

    SHA1

    b77df00003a083c6ef6931814f22f396262d4d8b

    SHA256

    099c3c05d2bd26e2095a122aba20ec47a0710ecf7cc17b262419cfab6fc38381

    SHA512

    855e733e65c55c0f00b1df3fa3e6fe396a90eb9ea23efbd044c9c91eced84d96d8ae09eae65e67b9387af4e47e50d943f0f53f721875472b1fcc87d617a87828

  • memory/1792-79-0x0000000000000000-mapping.dmp
  • memory/1972-68-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-58-0x0000000076761000-0x0000000076763000-memory.dmp
    Filesize

    8KB

  • memory/1972-69-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-70-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-60-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-61-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-62-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-63-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-64-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-65-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-66-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-67-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-82-0x0000000072A7D000-0x0000000072A88000-memory.dmp
    Filesize

    44KB

  • memory/1972-57-0x0000000072A7D000-0x0000000072A88000-memory.dmp
    Filesize

    44KB

  • memory/1972-59-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-71-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-72-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-73-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-74-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-75-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-76-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-77-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-78-0x00000000004D7000-0x00000000004E2000-memory.dmp
    Filesize

    44KB

  • memory/1972-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1972-55-0x0000000071A91000-0x0000000071A93000-memory.dmp
    Filesize

    8KB

  • memory/1972-54-0x000000002FE11000-0x000000002FE14000-memory.dmp
    Filesize

    12KB