Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 13:43

General

  • Target

    af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14.exe

  • Size

    2.7MB

  • MD5

    9f843bb1b987bc8fb36c20d3cabeefc3

  • SHA1

    5e43f6065741e382f308a99e34a8db0fcb857d20

  • SHA256

    af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14

  • SHA512

    6ca63987946a0344d362c49b1800d1b8d9886cdba8c2d7aa3815d167dd64ed80e3b9568904976ed0b8c80689c2c3600b3946ab34a5ff2ca3c12a873d202c490e

  • SSDEEP

    49152:R6KN3J3DrBW/NTy0ljNLHbW0e6v2D5NTtSbXUuE11eJC53B3AQ7iRrxdS8iyEuXE:RZZJnBW/ZjNL7pe6v2D5NTS3E1vHwQu8

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14.exe
    "C:\Users\Admin\AppData\Local\Temp\af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\Temp\af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14.exe
      C:\Users\Admin\AppData\Local\Temp\af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14.exe --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=90.0.4480.48 --initial-client-data=0x188,0x18c,0x190,0x15c,0x194,0x74cd89c8,0x74cd89d8,0x74cd89e4
      2⤵
      • Loads dropped DLL
      PID:2872
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    a09ba21ac79ecc47b0df39449fd2e59e

    SHA1

    03ae3c2fba659543dc4f0c198caf740d298a06b7

    SHA256

    ef3001c3fa9ef1df8fdbae76ec2f2e5f3bfdfc098dba6926e64dc5433450545b

    SHA512

    1cc7b49f0c39c9d4940b1abde8ed4f741fe72d388decf86db1dbbf32b2158d7e5bb2177d6be41c05e713750c51e5d4f4831280533989a1c286780c511953812d

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    9158bac6bc837edf88d53a41414bccbf

    SHA1

    e45b1e51f87147166044b60c959e2f64c2ff586f

    SHA256

    6fa0643f523d3995d06b394b364bf502278f3a888fd497dd93579657055a2a9d

    SHA512

    93da44c986a1698df9fd4c6924ce76e746023029d38d625159e2729b74c16a378f2143495aab0ce73c13cfb5153be0e2adfbf029476d419be50bd4dd81c35e6a

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    a7364a028f007d34fbec7e419757ee65

    SHA1

    ee2b4ea80b79bb2b26e5d3011b4632451ceaa122

    SHA256

    f39cdd36fa030fcc32a668befac380f91dd8d1a1ddf2532e0606370068dab0a8

    SHA512

    364e52fe1d9bba8e0d1f581a7e48ecfdba953a8dcc8e8d1445e4435888cfbb42ba1d83b11470b7fa10474122ee86d5d4840ef7ad199c48ebd102a9c93aec7fa6

  • C:\Users\Admin\AppData\Local\Temp\Cab11EB.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Cab12EB.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar11F0.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • C:\Users\Admin\AppData\Local\Temp\Tar12FF.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14.exe

    Filesize

    2.7MB

    MD5

    9f843bb1b987bc8fb36c20d3cabeefc3

    SHA1

    5e43f6065741e382f308a99e34a8db0fcb857d20

    SHA256

    af7892e321b7057ad7879f7e1ae568878153afec03bd216dd80a04a99fb3ed14

    SHA512

    6ca63987946a0344d362c49b1800d1b8d9886cdba8c2d7aa3815d167dd64ed80e3b9568904976ed0b8c80689c2c3600b3946ab34a5ff2ca3c12a873d202c490e

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2406121343103861904.dll

    Filesize

    4.5MB

    MD5

    81fe65af3d3707ef3d58020f87c8ae21

    SHA1

    d25b438f9c2a4ef5929ca4167e2f6526f9252703

    SHA256

    c2be617c6c6a77724400992878a95dfdb7dd24571330a167e9c423d33098cb7b

    SHA512

    2a3cd92b9f5df14834cff9b37e5fa40faf47d8bb4a637fe44d58d69b0fdc218d2ea39e179b711ebad715eb656c8fb7fa2b7b4642c3301e000bf60fc38a6e0969

  • memory/1904-16-0x0000000003350000-0x000000000387E000-memory.dmp

    Filesize

    5.2MB

  • memory/1904-1-0x0000000000400000-0x000000000092E000-memory.dmp

    Filesize

    5.2MB

  • memory/1904-493-0x0000000000400000-0x000000000092E000-memory.dmp

    Filesize

    5.2MB

  • memory/1904-778-0x00000000027B0000-0x0000000002CDE000-memory.dmp

    Filesize

    5.2MB

  • memory/1904-785-0x0000000003350000-0x000000000387E000-memory.dmp

    Filesize

    5.2MB

  • memory/2612-21-0x0000000000400000-0x000000000092E000-memory.dmp

    Filesize

    5.2MB

  • memory/2612-20-0x0000000000400000-0x000000000092E000-memory.dmp

    Filesize

    5.2MB

  • memory/2872-10-0x0000000000400000-0x000000000092E000-memory.dmp

    Filesize

    5.2MB