Resubmissions

10-10-2024 08:00

241010-jv1gmsxcpq 10

10-10-2024 07:46

241010-jlylpaxbnl 10

Analysis

  • max time kernel
    599s
  • max time network
    594s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-10-2024 08:00

General

  • Target

    OZsK1zm3hpiRCD2.exe

  • Size

    751KB

  • MD5

    2e5a55a46c75aa53efd566270938d168

  • SHA1

    ce2dbc6468deedaff70830ffa2e7af2c2f36f333

  • SHA256

    57e610ffae08a6189ecc331352a5115093c0c8b9372756b2211f2e164d052dc5

  • SHA512

    8eef317a65dacf9686df9b22b47b9bf6738ec607983740279079b9927f02b4a3413b166500f7c11e1944b62e241aaa0552d1e2b73755dbaecaaed178a49e72a1

  • SSDEEP

    12288:v39mEqOVzmIJnfTu6EKrVwTBbHsot5ZeVK7EWWlPYnlMWn:vIEqE6sTxBwBtve0WRnW

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

t18n

Decoy

tmusicoregon.net

atici.online

j7u7.xyz

iewunucierwuerwnziqi1.info

ruvabetgiris.website

acik.lat

obsk.top

sphaltpaving-ttp1-shd-us-2.shop

ispensarynearme.news

b3nd.bond

urelook.xyz

gearlpfbm.top

aconstructionjob.bond

killsnexis.info

oshon.xyz

ashabsxw.top

ussiatraiding.buzz

raipsehumus.homes

6ae23rx.forum

edar88vvip.shop

Signatures

  • Formbook

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

  • Formbook payload 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3480
    • C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe
      "C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4940
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1448
      • C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe
        "C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:444
    • C:\Windows\SysWOW64\chkdsk.exe
      "C:\Windows\SysWOW64\chkdsk.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2344
      • C:\Windows\SysWOW64\cmd.exe
        /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5048
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:3204

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\DB1

      Filesize

      40KB

      MD5

      a182561a527f929489bf4b8f74f65cd7

      SHA1

      8cd6866594759711ea1836e86a5b7ca64ee8911f

      SHA256

      42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

      SHA512

      9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wjncwvj2.nhs.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\L4R79R46\L4Rlogim.jpeg

      Filesize

      71KB

      MD5

      7c3a94d9e544ff082dd0d431f72cc773

      SHA1

      eb6a8efc3ce6c11eb41bf0eb5b49fdf5fae7d70e

      SHA256

      b28cef8804edd29b6f222be43981dce07a9d3ae48aa11110b77aad54ac4c9607

      SHA512

      2c5b8666f7819aca1abdfa75d12c8955642890fcae97965c784fc0bfbc47b63c0ef2f764cb3db8b92e869a0b6c29d62a955aa4b0fcf5d894631f836b3c161ccf

    • C:\Users\Admin\AppData\Roaming\L4R79R46\L4Rlogrf.ini

      Filesize

      40B

      MD5

      2f245469795b865bdd1b956c23d7893d

      SHA1

      6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

      SHA256

      1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

      SHA512

      909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

    • C:\Users\Admin\AppData\Roaming\L4R79R46\L4Rlogrg.ini

      Filesize

      38B

      MD5

      4aadf49fed30e4c9b3fe4a3dd6445ebe

      SHA1

      1e332822167c6f351b99615eada2c30a538ff037

      SHA256

      75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

      SHA512

      eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

    • C:\Users\Admin\AppData\Roaming\L4R79R46\L4Rlogri.ini

      Filesize

      40B

      MD5

      d63a82e5d81e02e399090af26db0b9cb

      SHA1

      91d0014c8f54743bba141fd60c9d963f869d76c9

      SHA256

      eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

      SHA512

      38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

    • C:\Users\Admin\AppData\Roaming\L4R79R46\L4Rlogrv.ini

      Filesize

      872B

      MD5

      bbc41c78bae6c71e63cb544a6a284d94

      SHA1

      33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

      SHA256

      ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

      SHA512

      0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

    • memory/444-11-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/444-15-0x00000000014B0000-0x00000000017FA000-memory.dmp

      Filesize

      3.3MB

    • memory/444-16-0x0000000001350000-0x0000000001364000-memory.dmp

      Filesize

      80KB

    • memory/444-17-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/1448-38-0x0000000006300000-0x000000000634C000-memory.dmp

      Filesize

      304KB

    • memory/1448-51-0x0000000007400000-0x000000000741E000-memory.dmp

      Filesize

      120KB

    • memory/1448-70-0x0000000074580000-0x0000000074D30000-memory.dmp

      Filesize

      7.7MB

    • memory/1448-67-0x00000000078B0000-0x00000000078B8000-memory.dmp

      Filesize

      32KB

    • memory/1448-66-0x00000000078D0000-0x00000000078EA000-memory.dmp

      Filesize

      104KB

    • memory/1448-18-0x000000007458E000-0x000000007458F000-memory.dmp

      Filesize

      4KB

    • memory/1448-19-0x0000000004CB0000-0x0000000004CE6000-memory.dmp

      Filesize

      216KB

    • memory/1448-20-0x0000000005430000-0x0000000005A58000-memory.dmp

      Filesize

      6.2MB

    • memory/1448-23-0x0000000004DF0000-0x0000000004E00000-memory.dmp

      Filesize

      64KB

    • memory/1448-65-0x00000000077D0000-0x00000000077E4000-memory.dmp

      Filesize

      80KB

    • memory/1448-21-0x0000000074580000-0x0000000074D30000-memory.dmp

      Filesize

      7.7MB

    • memory/1448-24-0x00000000051A0000-0x00000000051C2000-memory.dmp

      Filesize

      136KB

    • memory/1448-26-0x0000000005C30000-0x0000000005C96000-memory.dmp

      Filesize

      408KB

    • memory/1448-25-0x0000000005B10000-0x0000000005B76000-memory.dmp

      Filesize

      408KB

    • memory/1448-64-0x00000000077C0000-0x00000000077CE000-memory.dmp

      Filesize

      56KB

    • memory/1448-36-0x0000000005CA0000-0x0000000005FF4000-memory.dmp

      Filesize

      3.3MB

    • memory/1448-37-0x0000000006260000-0x000000000627E000-memory.dmp

      Filesize

      120KB

    • memory/1448-63-0x0000000074580000-0x0000000074D30000-memory.dmp

      Filesize

      7.7MB

    • memory/1448-39-0x000000007FA20000-0x000000007FA30000-memory.dmp

      Filesize

      64KB

    • memory/1448-40-0x0000000007420000-0x0000000007452000-memory.dmp

      Filesize

      200KB

    • memory/1448-41-0x00000000703A0000-0x00000000703EC000-memory.dmp

      Filesize

      304KB

    • memory/1448-53-0x0000000004DF0000-0x0000000004E00000-memory.dmp

      Filesize

      64KB

    • memory/1448-52-0x0000000004DF0000-0x0000000004E00000-memory.dmp

      Filesize

      64KB

    • memory/1448-62-0x000000007458E000-0x000000007458F000-memory.dmp

      Filesize

      4KB

    • memory/1448-54-0x0000000007460000-0x0000000007503000-memory.dmp

      Filesize

      652KB

    • memory/1448-55-0x0000000007BD0000-0x000000000824A000-memory.dmp

      Filesize

      6.5MB

    • memory/1448-56-0x0000000007590000-0x00000000075AA000-memory.dmp

      Filesize

      104KB

    • memory/1448-57-0x0000000007600000-0x000000000760A000-memory.dmp

      Filesize

      40KB

    • memory/1448-58-0x0000000007810000-0x00000000078A6000-memory.dmp

      Filesize

      600KB

    • memory/1448-59-0x0000000007790000-0x00000000077A1000-memory.dmp

      Filesize

      68KB

    • memory/2480-60-0x0000000000C30000-0x0000000000C3A000-memory.dmp

      Filesize

      40KB

    • memory/2480-61-0x0000000000C30000-0x0000000000C3A000-memory.dmp

      Filesize

      40KB

    • memory/2480-72-0x00000000003A0000-0x00000000003CF000-memory.dmp

      Filesize

      188KB

    • memory/3480-75-0x0000000008F10000-0x00000000090A3000-memory.dmp

      Filesize

      1.6MB

    • memory/3480-71-0x00000000091C0000-0x000000000933B000-memory.dmp

      Filesize

      1.5MB

    • memory/3480-22-0x00000000091C0000-0x000000000933B000-memory.dmp

      Filesize

      1.5MB

    • memory/4940-10-0x0000000006CC0000-0x0000000006D5C000-memory.dmp

      Filesize

      624KB

    • memory/4940-9-0x0000000006A00000-0x0000000006A76000-memory.dmp

      Filesize

      472KB

    • memory/4940-8-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/4940-7-0x000000007450E000-0x000000007450F000-memory.dmp

      Filesize

      4KB

    • memory/4940-0-0x000000007450E000-0x000000007450F000-memory.dmp

      Filesize

      4KB

    • memory/4940-13-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/4940-6-0x0000000005C20000-0x0000000005C38000-memory.dmp

      Filesize

      96KB

    • memory/4940-5-0x0000000005710000-0x000000000571A000-memory.dmp

      Filesize

      40KB

    • memory/4940-4-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/4940-3-0x0000000005750000-0x00000000057E2000-memory.dmp

      Filesize

      584KB

    • memory/4940-2-0x0000000005C60000-0x0000000006204000-memory.dmp

      Filesize

      5.6MB

    • memory/4940-1-0x0000000000C40000-0x0000000000D02000-memory.dmp

      Filesize

      776KB