Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    18-09-2023 10:35

General

  • Target

    b41f769385869cc9e25151ef8c4c9766fb5c7be93402aae8ef7f8d761767f125.exe

  • Size

    26KB

  • MD5

    995fdf2170f9337f84f2521ace69aab4

  • SHA1

    e6ca69c7a57735649b59f12943de8cfdd1ca5d4a

  • SHA256

    b41f769385869cc9e25151ef8c4c9766fb5c7be93402aae8ef7f8d761767f125

  • SHA512

    6045d417de67989c19fed9d572906bf639ada4cc006846a8c384e475d0e28cd6beda238b2cc4fb6916562b1c69f9473dd25fe1670163f99e73aeb967889ab930

  • SSDEEP

    384:qc0J+vqBoLotA8oPNIrxKRQSv7QrzVVvOytGxboE9K/mKHrjpjv0:8Q3LotOPNSQVwVVxGKEvKHrV0

Malware Config

Signatures

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

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b41f769385869cc9e25151ef8c4c9766fb5c7be93402aae8ef7f8d761767f125.exe
    "C:\Users\Admin\AppData\Local\Temp\b41f769385869cc9e25151ef8c4c9766fb5c7be93402aae8ef7f8d761767f125.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Windows\spoolsv.exe
      "C:\Windows\spoolsv.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      PID:2212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\wSeGm9tmE76cB7z.exe

    Filesize

    26KB

    MD5

    4789f671833a3026f61bcd334267fb55

    SHA1

    e2fc65ea7142399484a6417304e66d204444183c

    SHA256

    550640a4bf1612ef8cbd4dfc7b4772489cb6659fc4e35788bbe1e26718465bb6

    SHA512

    4e80d2c0c9035ac90012b6fa1d21172d5bc777b98cc66af282d649a1543f34ea913376b580043503a1dc41792d17a4611e45e1f762bcad45118ebacd796804bb

  • C:\Users\Admin\AppData\Local\Temp\wSeGm9tmE76cB7z.exe

    Filesize

    26KB

    MD5

    4789f671833a3026f61bcd334267fb55

    SHA1

    e2fc65ea7142399484a6417304e66d204444183c

    SHA256

    550640a4bf1612ef8cbd4dfc7b4772489cb6659fc4e35788bbe1e26718465bb6

    SHA512

    4e80d2c0c9035ac90012b6fa1d21172d5bc777b98cc66af282d649a1543f34ea913376b580043503a1dc41792d17a4611e45e1f762bcad45118ebacd796804bb

  • C:\Windows\spoolsv.exe

    Filesize

    25KB

    MD5

    82071fd2379c64429acf376487fcddff

    SHA1

    2da42c7eaa62ecee65757b441c939f12b52228fb

    SHA256

    272bd07fa6c2678fd96a026237a184fceffa65d319f6844bac582aff90ce25d8

    SHA512

    194bdbdf624ec425a095a44116032687c46b3e2370f3c436e2d5516dcc778824ff57fa69edfacb42e5e76e05894eb0a40acf32dcee3b80ba397f823ec82b6adb

  • C:\Windows\spoolsv.exe

    Filesize

    25KB

    MD5

    82071fd2379c64429acf376487fcddff

    SHA1

    2da42c7eaa62ecee65757b441c939f12b52228fb

    SHA256

    272bd07fa6c2678fd96a026237a184fceffa65d319f6844bac582aff90ce25d8

    SHA512

    194bdbdf624ec425a095a44116032687c46b3e2370f3c436e2d5516dcc778824ff57fa69edfacb42e5e76e05894eb0a40acf32dcee3b80ba397f823ec82b6adb