Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 08:31

General

  • Target

    SecuriteInfo.com.Other.Malware-gen.29890.16438.xls

  • Size

    288KB

  • MD5

    8b330fca4e3f56131727b3fc246ea937

  • SHA1

    ee2f2a899e8f2ee68a1b1bbcf3d54625682944f0

  • SHA256

    489e6a77763d56312fa2f10bf16dda809618217106b58709e29ccd8fed01a9a6

  • SHA512

    c489c96918d453e1527df509d9dce4a853e00764957777f5b38d226fd7dc978ec0ca410f9a76b80d8966a92ae6611ceaee5aa0673fea39713bf27bef68b7387c

  • SSDEEP

    6144:P/uZ+RwPONXoRjDhIcp0fDlavx+W26nAKGy0PQmU1Nd00lzL3:PFQmUdFB

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

us90

Decoy

1expresno.app

thepsychic.africa

burjbinghattitower.com

hotelurgell.com

goldenassistant.com

ecovod-servise.ru

kbjnonprofit.com

dope.trade

babylon-it.net

dsatyui.xyz

myexpertisebybbl.app

2185866.com

inboxwired.xyz

lamy.life

gic-invest.info

eliteconstructionsni.co.uk

lamygeo.com

courean.space

cremation-services-75688.com

fapearte.com

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook payload 4 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 6 IoCs
  • 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: EnumeratesProcesses 25 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1368
    • 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\SecuriteInfo.com.Other.Malware-gen.29890.16438.xls
      2⤵
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:1696
    • C:\Windows\SysWOW64\raserver.exe
      "C:\Windows\SysWOW64\raserver.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\dsdbla.exe"
        3⤵
          PID:1564
    • 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:1224
      • C:\Users\Public\vbc.exe
        "C:\Users\Public\vbc.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:992
        • C:\Users\Admin\AppData\Local\Temp\dsdbla.exe
          "C:\Users\Admin\AppData\Local\Temp\dsdbla.exe" C:\Users\Admin\AppData\Local\Temp\liijoebg.mh
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1268
          • C:\Users\Admin\AppData\Local\Temp\dsdbla.exe
            "C:\Users\Admin\AppData\Local\Temp\dsdbla.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            PID:1996

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\dsdbla.exe
      Filesize

      104KB

      MD5

      94602804a99dca871f93226f5b96ea72

      SHA1

      64337e2b7b7774d49063797b68804146481d641d

      SHA256

      ccb9e20dd6659f49a7e79337849608b121ca1a52f96a1f9420c9eccf9d66acb2

      SHA512

      c97648551f3c32c723c524c5ccbf7907c664aaa4cadf8dad8de538544a3690aea7b0182452dab59171b3e44dbb125252279314d97c965a36d4d5d10e3870722b

    • C:\Users\Admin\AppData\Local\Temp\dsdbla.exe
      Filesize

      104KB

      MD5

      94602804a99dca871f93226f5b96ea72

      SHA1

      64337e2b7b7774d49063797b68804146481d641d

      SHA256

      ccb9e20dd6659f49a7e79337849608b121ca1a52f96a1f9420c9eccf9d66acb2

      SHA512

      c97648551f3c32c723c524c5ccbf7907c664aaa4cadf8dad8de538544a3690aea7b0182452dab59171b3e44dbb125252279314d97c965a36d4d5d10e3870722b

    • C:\Users\Admin\AppData\Local\Temp\dsdbla.exe
      Filesize

      104KB

      MD5

      94602804a99dca871f93226f5b96ea72

      SHA1

      64337e2b7b7774d49063797b68804146481d641d

      SHA256

      ccb9e20dd6659f49a7e79337849608b121ca1a52f96a1f9420c9eccf9d66acb2

      SHA512

      c97648551f3c32c723c524c5ccbf7907c664aaa4cadf8dad8de538544a3690aea7b0182452dab59171b3e44dbb125252279314d97c965a36d4d5d10e3870722b

    • C:\Users\Admin\AppData\Local\Temp\gjldvdpgwtq.wu
      Filesize

      185KB

      MD5

      dc178368ef86f9e47be7b46d80973b7f

      SHA1

      188ad6c5b474a5a173b707a401858236052349fa

      SHA256

      64536c8c1548dfce51f857bfd87cbe2071ab3888fe3ddda942d6a5827680507c

      SHA512

      f2d00cfeda08309ee9b6c43d3f7b6250bfd8d7668f563da70e28c2963a11202c499f3d3f835b26ccfecb0439a97bb1360f7d5fc50438b5cab73656960acd71bf

    • C:\Users\Admin\AppData\Local\Temp\liijoebg.mh
      Filesize

      5KB

      MD5

      e074e51a3b0f9f1d64f6eeb23b3032e0

      SHA1

      08aef3eaf7300ef03a83a285edf2b1171b240331

      SHA256

      c990ccf8006c966795c1de212b08a205c6bbfd11bfdd5e4010ae318941cca399

      SHA512

      029d2ab2441bbc8716c09161f4127301c1e1ff8d20c85c9b1326c59ac13a5ad1ef459c446564eb1049fbd8add4ebdd47e0aace6b14a10841564c42042852df72

    • C:\Users\Public\vbc.exe
      Filesize

      257KB

      MD5

      2bdc884f5196976c0de3167589f63522

      SHA1

      5b978a100bbb83b0bbec915bd1c3b07525196259

      SHA256

      0646127a521c320e61c31e4ae2c035e53438d7ff8d25e28cd7150367f40d9504

      SHA512

      a50a9949662bd8e0eafe665c5ab65b1c488c4e3122535908aea91a8584bc005b6744610cb973fcf761ce3165ae324c627d23d144f211e2a57f63a36d13c6d690

    • C:\Users\Public\vbc.exe
      Filesize

      257KB

      MD5

      2bdc884f5196976c0de3167589f63522

      SHA1

      5b978a100bbb83b0bbec915bd1c3b07525196259

      SHA256

      0646127a521c320e61c31e4ae2c035e53438d7ff8d25e28cd7150367f40d9504

      SHA512

      a50a9949662bd8e0eafe665c5ab65b1c488c4e3122535908aea91a8584bc005b6744610cb973fcf761ce3165ae324c627d23d144f211e2a57f63a36d13c6d690

    • \Users\Admin\AppData\Local\Temp\dsdbla.exe
      Filesize

      104KB

      MD5

      94602804a99dca871f93226f5b96ea72

      SHA1

      64337e2b7b7774d49063797b68804146481d641d

      SHA256

      ccb9e20dd6659f49a7e79337849608b121ca1a52f96a1f9420c9eccf9d66acb2

      SHA512

      c97648551f3c32c723c524c5ccbf7907c664aaa4cadf8dad8de538544a3690aea7b0182452dab59171b3e44dbb125252279314d97c965a36d4d5d10e3870722b

    • \Users\Admin\AppData\Local\Temp\dsdbla.exe
      Filesize

      104KB

      MD5

      94602804a99dca871f93226f5b96ea72

      SHA1

      64337e2b7b7774d49063797b68804146481d641d

      SHA256

      ccb9e20dd6659f49a7e79337849608b121ca1a52f96a1f9420c9eccf9d66acb2

      SHA512

      c97648551f3c32c723c524c5ccbf7907c664aaa4cadf8dad8de538544a3690aea7b0182452dab59171b3e44dbb125252279314d97c965a36d4d5d10e3870722b

    • \Users\Public\vbc.exe
      Filesize

      257KB

      MD5

      2bdc884f5196976c0de3167589f63522

      SHA1

      5b978a100bbb83b0bbec915bd1c3b07525196259

      SHA256

      0646127a521c320e61c31e4ae2c035e53438d7ff8d25e28cd7150367f40d9504

      SHA512

      a50a9949662bd8e0eafe665c5ab65b1c488c4e3122535908aea91a8584bc005b6744610cb973fcf761ce3165ae324c627d23d144f211e2a57f63a36d13c6d690

    • memory/992-61-0x0000000000000000-mapping.dmp
    • memory/1268-66-0x0000000000000000-mapping.dmp
    • memory/1368-78-0x0000000006570000-0x0000000006683000-memory.dmp
      Filesize

      1.1MB

    • memory/1368-90-0x0000000006FA0000-0x00000000070DC000-memory.dmp
      Filesize

      1.2MB

    • memory/1368-89-0x0000000006FA0000-0x00000000070DC000-memory.dmp
      Filesize

      1.2MB

    • memory/1564-82-0x0000000000000000-mapping.dmp
    • memory/1696-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1696-57-0x0000000072ACD000-0x0000000072AD8000-memory.dmp
      Filesize

      44KB

    • memory/1696-92-0x0000000072ACD000-0x0000000072AD8000-memory.dmp
      Filesize

      44KB

    • memory/1696-91-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1696-54-0x000000002FE51000-0x000000002FE54000-memory.dmp
      Filesize

      12KB

    • memory/1696-55-0x0000000071AE1000-0x0000000071AE3000-memory.dmp
      Filesize

      8KB

    • memory/1696-58-0x00000000766D1000-0x00000000766D3000-memory.dmp
      Filesize

      8KB

    • memory/1696-86-0x0000000072ACD000-0x0000000072AD8000-memory.dmp
      Filesize

      44KB

    • memory/1964-83-0x00000000009C0000-0x00000000009DC000-memory.dmp
      Filesize

      112KB

    • memory/1964-84-0x0000000000080000-0x00000000000AF000-memory.dmp
      Filesize

      188KB

    • memory/1964-85-0x0000000001DE0000-0x00000000020E3000-memory.dmp
      Filesize

      3.0MB

    • memory/1964-79-0x0000000000000000-mapping.dmp
    • memory/1964-87-0x00000000007E0000-0x0000000000873000-memory.dmp
      Filesize

      588KB

    • memory/1964-88-0x0000000000080000-0x00000000000AF000-memory.dmp
      Filesize

      188KB

    • memory/1996-73-0x000000000041F170-mapping.dmp
    • memory/1996-80-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/1996-76-0x0000000000810000-0x0000000000B13000-memory.dmp
      Filesize

      3.0MB

    • memory/1996-77-0x00000000002C0000-0x00000000002D4000-memory.dmp
      Filesize

      80KB

    • memory/1996-75-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB