Analysis

  • max time kernel
    103s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    16/03/2023, 16:18

General

  • Target

    Shipping Document.xls

  • Size

    1.5MB

  • MD5

    d6e8a2e96771f3bbeb8d251fc7fd4c25

  • SHA1

    1e934b13fbc564c4553ecc2a45b9750cc8b14a86

  • SHA256

    1bbf0cf12da84316094c5335876420a8ea7e9dd3eb7dbfdba92fac23f0f01803

  • SHA512

    4cba8d44748fc490ca0b6f3d92433fd4ea27220b3373a62fbd3c8c9859c0ed1360c7d142711030ed6885dd6181c61554523c6e9bf82477aa4e2033fd75da089f

  • SSDEEP

    24576:tLKUZy8NXUZyiDDa+EZyFrdJPrdJHZyASeHZy8G7pJZy6Zn0jnUoTABoRYPon:tLKG+vD0Sjbd4qTDTtYPa

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 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\Shipping Document.xls"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1960
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Loads dropped DLL
    • Launches Equation Editor
    • Suspicious use of WriteProcessMemory
    PID:268
    • C:\Users\Public\vbc.exe
      "C:\Users\Public\vbc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1764

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\F68A4B77.emf

    Filesize

    95KB

    MD5

    986deaf7c6b0ba04af6484e2d0a11afc

    SHA1

    dbcfd65bf6c6dfef96018b6a4740eea45091f0ac

    SHA256

    f186514f595d3beb01e21a8ed39736ea54e8346ee4a30ad123898a5751d6a571

    SHA512

    32e3699abf8cc926cf26761b7b2074196651501791c68a23731e48e2dda142ca3ddb7925cf62cf36c034c90df65288b9d2181d8df760dd0e16a9b0f1f9812cad

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\FDB63F0C.emf

    Filesize

    1.4MB

    MD5

    a01b9617553432807b9b58025b338d97

    SHA1

    439bdcc450408b9735b2428c2d53d2e6977fa58c

    SHA256

    7a0426ed2e2349916969ff7087c0f76089fb8ce7f4627f3d11ccbc1aaefcedce

    SHA512

    312cc2563fa865d6a939fea85a520627c73ed9a95bafc98c89495f21d535dc658825be74b64f0f5c5815d1d234fc6e77a71779247e4973e39ba8dccec2f09bee

  • C:\Users\Public\vbc.exe

    Filesize

    1.0MB

    MD5

    374fb48a959a96ce92ae0e4346763293

    SHA1

    ce9cba115e6efff3bf100335f04da05ffff82b9d

    SHA256

    f2d2638afb528c7476c9ee8e83ddb20e686b0b05f53f2f966fd9eb962427f8aa

    SHA512

    63b2858711ff1a219fe969d563307e9a708be165f9fcedfc2c1c48da270775d033ac915d361a8ac34a98d60904e0abf364b7ccaf27e9fc5a8993fe88c4bd26a3

  • C:\Users\Public\vbc.exe

    Filesize

    1.0MB

    MD5

    374fb48a959a96ce92ae0e4346763293

    SHA1

    ce9cba115e6efff3bf100335f04da05ffff82b9d

    SHA256

    f2d2638afb528c7476c9ee8e83ddb20e686b0b05f53f2f966fd9eb962427f8aa

    SHA512

    63b2858711ff1a219fe969d563307e9a708be165f9fcedfc2c1c48da270775d033ac915d361a8ac34a98d60904e0abf364b7ccaf27e9fc5a8993fe88c4bd26a3

  • \Users\Public\vbc.exe

    Filesize

    1.0MB

    MD5

    374fb48a959a96ce92ae0e4346763293

    SHA1

    ce9cba115e6efff3bf100335f04da05ffff82b9d

    SHA256

    f2d2638afb528c7476c9ee8e83ddb20e686b0b05f53f2f966fd9eb962427f8aa

    SHA512

    63b2858711ff1a219fe969d563307e9a708be165f9fcedfc2c1c48da270775d033ac915d361a8ac34a98d60904e0abf364b7ccaf27e9fc5a8993fe88c4bd26a3

  • \Users\Public\vbc.exe

    Filesize

    1.0MB

    MD5

    374fb48a959a96ce92ae0e4346763293

    SHA1

    ce9cba115e6efff3bf100335f04da05ffff82b9d

    SHA256

    f2d2638afb528c7476c9ee8e83ddb20e686b0b05f53f2f966fd9eb962427f8aa

    SHA512

    63b2858711ff1a219fe969d563307e9a708be165f9fcedfc2c1c48da270775d033ac915d361a8ac34a98d60904e0abf364b7ccaf27e9fc5a8993fe88c4bd26a3

  • \Users\Public\vbc.exe

    Filesize

    1.0MB

    MD5

    374fb48a959a96ce92ae0e4346763293

    SHA1

    ce9cba115e6efff3bf100335f04da05ffff82b9d

    SHA256

    f2d2638afb528c7476c9ee8e83ddb20e686b0b05f53f2f966fd9eb962427f8aa

    SHA512

    63b2858711ff1a219fe969d563307e9a708be165f9fcedfc2c1c48da270775d033ac915d361a8ac34a98d60904e0abf364b7ccaf27e9fc5a8993fe88c4bd26a3

  • \Users\Public\vbc.exe

    Filesize

    1.0MB

    MD5

    374fb48a959a96ce92ae0e4346763293

    SHA1

    ce9cba115e6efff3bf100335f04da05ffff82b9d

    SHA256

    f2d2638afb528c7476c9ee8e83ddb20e686b0b05f53f2f966fd9eb962427f8aa

    SHA512

    63b2858711ff1a219fe969d563307e9a708be165f9fcedfc2c1c48da270775d033ac915d361a8ac34a98d60904e0abf364b7ccaf27e9fc5a8993fe88c4bd26a3

  • \Users\Public\vbc.exe

    Filesize

    1.0MB

    MD5

    374fb48a959a96ce92ae0e4346763293

    SHA1

    ce9cba115e6efff3bf100335f04da05ffff82b9d

    SHA256

    f2d2638afb528c7476c9ee8e83ddb20e686b0b05f53f2f966fd9eb962427f8aa

    SHA512

    63b2858711ff1a219fe969d563307e9a708be165f9fcedfc2c1c48da270775d033ac915d361a8ac34a98d60904e0abf364b7ccaf27e9fc5a8993fe88c4bd26a3

  • memory/1960-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1960-85-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB