Analysis

  • max time kernel
    146s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-06-2024 02:05

General

  • Target

    b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c.exe

  • Size

    1.9MB

  • MD5

    b1a1b801d4d4cd9a69432cbac0a53393

  • SHA1

    0ca06e648515de6973846fbd1d3c2ddd67af0157

  • SHA256

    b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c

  • SHA512

    3b8c5bb38009e03b45c99e207170847bc91c7691624663602d14b417e2f20266a3098e67e13c2e6a5a77bdbabe98058c3adbd89adad0674e5860bedb746db034

  • SSDEEP

    24576:mxWVeyRYcR0Ow9HMobQi3AlbWAcAYDgWlZiibmwa+5v0DmZlbmw7orwi1KxOqO:m8Yc2zsobQrhRR+mibhv0DmT6I6DkO

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 33 IoCs
  • Drops file in Windows directory 64 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c.exe
    "C:\Users\Admin\AppData\Local\Temp\b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4248

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins3d\prcrPlugin.exe

    Filesize

    1.9MB

    MD5

    74ff4246031397f0415ff4365582545c

    SHA1

    36d670443d1cd48ee8431054f1b567f90f24a6f8

    SHA256

    9f26bccdb96445a3b717f538ae64e2ab0dd001b3da95451eb6917979d5f17256

    SHA512

    17dbd25667faf922670f3b0ed94c255150eb9fd424625c751a398a09cb062ceb271492e28b01829144a5f542e0c8be37203c13f44f213a179d2c0389552902a2

  • C:\Program Files (x86)\Common Files\Microsoft Shared\ink\fr-FR\TipResdexploitation.exe

    Filesize

    1.9MB

    MD5

    b1a1b801d4d4cd9a69432cbac0a53393

    SHA1

    0ca06e648515de6973846fbd1d3c2ddd67af0157

    SHA256

    b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c

    SHA512

    3b8c5bb38009e03b45c99e207170847bc91c7691624663602d14b417e2f20266a3098e67e13c2e6a5a77bdbabe98058c3adbd89adad0674e5860bedb746db034

  • C:\Program Files (x86)\WindowsPowerShell\Modules\PackageManagement\1.0.0.1\fr\RCX3DE6.tmp

    Filesize

    1.9MB

    MD5

    b7b51c33a1abae87f0b95f46d7d99cc7

    SHA1

    c8fc561911c9185c9b2b8f635ae4426a5b783cbf

    SHA256

    351d44e4a1b35ff87a962d8529d1b6d60dc5f18e6fc9d8c8bf5fa0b89698e040

    SHA512

    205f5377aff836294380097893798001b2170265afb55b3c04f94be2f8f2f0444541ab72973620534d9f1d94935ca84c25ec40285ca4d2ce477fdc2bba1af38b