Analysis

  • max time kernel
    66s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 08:27

General

  • Target

    7_202211790307252511.xls

  • Size

    73KB

  • MD5

    d8be49f5aba47292936a2cf6428e2229

  • SHA1

    0271e4c7027acc0fe964c7080dace4c2aa1cdb0d

  • SHA256

    4ef7f2a96112164a71c07fb9fe2c784eb21e0d51e6aa1a5118d3a6781d27fe7e

  • SHA512

    596ac9225e539a13b3f55e26b00aac568822c4a2958584946901308df62f111b59cf0d2f410379b747fca31dc6d5db1ac13222fa35d24262718e510a686fdcd9

  • SSDEEP

    1536:mblYkEIbSkKBEqEXPgsRZmbaoFhZhR0cixIHm0QS5iCGK97gdXaHVk8gASsacQui:mblYkEIuPm3fNRZmbaoFhZhR0cixIHmV

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • 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 5 IoCs
  • Suspicious use of WriteProcessMemory 12 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\7_202211790307252511.xls
    1⤵
    • Loads dropped DLL
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1812
    • C:\Users\Admin\Documents\calc.exe
      C:\Users\Admin\Documents\calc.exe -s C:\Users\Admin\Documents\6636702.
      2⤵
      • Executes dropped EXE
      PID:1340
    • C:\Users\Admin\Documents\calc.exe
      C:\Users\Admin\Documents\calc.exe -s C:\Users\Admin\Documents\5074049.
      2⤵
      • Executes dropped EXE
      PID:840
    • C:\Users\Admin\Documents\calc.exe
      C:\Users\Admin\Documents\calc.exe -s C:\Users\Admin\Documents\5492527.
      2⤵
      • Executes dropped EXE
      PID:1764

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\Documents\calc.exe
    Filesize

    14KB

    MD5

    432be6cf7311062633459eef6b242fb5

    SHA1

    a774a816662ff5b75669aa5bce751bab9d0972b8

    SHA256

    890c1734ed1ef6b2422a9b21d6205cf91e014add8a7f41aa5a294fcf60631a7b

    SHA512

    02dace1d807e9f2a6034688ff8950bb156ff36ea4eacbf5af8bcc8011106904e1810e26e4c12a20120640ae0c4acaa56372d956f16d037838b8d7dcc921cfa05

  • C:\Users\Admin\Documents\calc.exe
    Filesize

    14KB

    MD5

    432be6cf7311062633459eef6b242fb5

    SHA1

    a774a816662ff5b75669aa5bce751bab9d0972b8

    SHA256

    890c1734ed1ef6b2422a9b21d6205cf91e014add8a7f41aa5a294fcf60631a7b

    SHA512

    02dace1d807e9f2a6034688ff8950bb156ff36ea4eacbf5af8bcc8011106904e1810e26e4c12a20120640ae0c4acaa56372d956f16d037838b8d7dcc921cfa05

  • C:\Users\Admin\Documents\calc.exe
    Filesize

    14KB

    MD5

    432be6cf7311062633459eef6b242fb5

    SHA1

    a774a816662ff5b75669aa5bce751bab9d0972b8

    SHA256

    890c1734ed1ef6b2422a9b21d6205cf91e014add8a7f41aa5a294fcf60631a7b

    SHA512

    02dace1d807e9f2a6034688ff8950bb156ff36ea4eacbf5af8bcc8011106904e1810e26e4c12a20120640ae0c4acaa56372d956f16d037838b8d7dcc921cfa05

  • \Users\Admin\Documents\calc.exe
    Filesize

    14KB

    MD5

    432be6cf7311062633459eef6b242fb5

    SHA1

    a774a816662ff5b75669aa5bce751bab9d0972b8

    SHA256

    890c1734ed1ef6b2422a9b21d6205cf91e014add8a7f41aa5a294fcf60631a7b

    SHA512

    02dace1d807e9f2a6034688ff8950bb156ff36ea4eacbf5af8bcc8011106904e1810e26e4c12a20120640ae0c4acaa56372d956f16d037838b8d7dcc921cfa05

  • \Users\Admin\Documents\calc.exe
    Filesize

    14KB

    MD5

    432be6cf7311062633459eef6b242fb5

    SHA1

    a774a816662ff5b75669aa5bce751bab9d0972b8

    SHA256

    890c1734ed1ef6b2422a9b21d6205cf91e014add8a7f41aa5a294fcf60631a7b

    SHA512

    02dace1d807e9f2a6034688ff8950bb156ff36ea4eacbf5af8bcc8011106904e1810e26e4c12a20120640ae0c4acaa56372d956f16d037838b8d7dcc921cfa05

  • \Users\Admin\Documents\calc.exe
    Filesize

    14KB

    MD5

    432be6cf7311062633459eef6b242fb5

    SHA1

    a774a816662ff5b75669aa5bce751bab9d0972b8

    SHA256

    890c1734ed1ef6b2422a9b21d6205cf91e014add8a7f41aa5a294fcf60631a7b

    SHA512

    02dace1d807e9f2a6034688ff8950bb156ff36ea4eacbf5af8bcc8011106904e1810e26e4c12a20120640ae0c4acaa56372d956f16d037838b8d7dcc921cfa05

  • memory/840-259-0x0000000000000000-mapping.dmp
  • memory/1340-256-0x0000000000000000-mapping.dmp
  • memory/1764-262-0x0000000000000000-mapping.dmp
  • memory/1812-84-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-92-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-60-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-61-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-62-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-63-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-64-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-65-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-66-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-69-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-68-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-67-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-71-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-70-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-72-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-73-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-74-0x000000007261D000-0x0000000072628000-memory.dmp
    Filesize

    44KB

  • memory/1812-76-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-75-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-78-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-77-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-80-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-82-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-79-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-83-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-81-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-85-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-58-0x0000000076411000-0x0000000076413000-memory.dmp
    Filesize

    8KB

  • memory/1812-87-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-86-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-88-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-89-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-90-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-59-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-91-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-93-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-94-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-95-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-96-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-97-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-99-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-98-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-101-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-100-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-102-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-103-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-104-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-105-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-107-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-106-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-109-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-108-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-111-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-110-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-113-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-112-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-115-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-57-0x000000007261D000-0x0000000072628000-memory.dmp
    Filesize

    44KB

  • memory/1812-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1812-55-0x0000000071631000-0x0000000071633000-memory.dmp
    Filesize

    8KB

  • memory/1812-54-0x000000002F571000-0x000000002F574000-memory.dmp
    Filesize

    12KB

  • memory/1812-114-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-117-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-116-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-118-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB

  • memory/1812-119-0x000000000070B000-0x0000000000710000-memory.dmp
    Filesize

    20KB