Analysis

  • max time kernel
    14s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    09/11/2024, 15:35

General

  • Target

    eb5ec3b7d5e40e7e5ac48e35aa92e95c2cedde328d1363122c72e4b637764327N.exe

  • Size

    640KB

  • MD5

    9d750dc7d494f5a04cc82c91a0cfe110

  • SHA1

    3954f855a79773eb2b4b7a6acf4d32b23d1350a1

  • SHA256

    eb5ec3b7d5e40e7e5ac48e35aa92e95c2cedde328d1363122c72e4b637764327

  • SHA512

    8073525c7440e3e1e8a21967102869c2e2b898a5bc59bcc0e73983df0ae627795e05d6d3c43ee9ef8b04366a4317b57209744a48f07dc56202b7be17e7b1db87

  • SSDEEP

    12288:8SvoAT6AV0E7BAmEjCtLwwsv+KKhlz/HjrGoSf7FHfMdHnBjvrEH7p:8SZmAtTFwFM/xSxfMBlrEH7p

Malware Config

Signatures

  • Floxif family
  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Detects Floxif payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • UPX packed file 5 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb5ec3b7d5e40e7e5ac48e35aa92e95c2cedde328d1363122c72e4b637764327N.exe
    "C:\Users\Admin\AppData\Local\Temp\eb5ec3b7d5e40e7e5ac48e35aa92e95c2cedde328d1363122c72e4b637764327N.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2280
    • \??\c:\c8c6b46cebdfffe06e\update\update.exe
      c:\c8c6b46cebdfffe06e\update\update.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2744

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • \c8c6b46cebdfffe06e\_sfx_.dll

    Filesize

    25KB

    MD5

    ee207e35aea4d5df41d90221e1b66efa

    SHA1

    757469cf9ad2f21f267bbe730560114fdf8a89a5

    SHA256

    cf64c95e9a2d02967efc22b00efb3736156b913a95231eb63c1df45d43475e64

    SHA512

    43e9f75725daa4f3428b2d9cee2c2cc8b2f2e991b8e58d72d2f429fbdfb614c86d172f03d3f9da98756bd4e245643d9a57c6efa422d6c60ad364a2322245542d

  • \c8c6b46cebdfffe06e\update\UPDSPAPI.dll.tmp

    Filesize

    413KB

    MD5

    daa477b22e2c19a9cc11db2392827bc4

    SHA1

    be3bac2f074f4fad2f363fbf65ef52f9988e230a

    SHA256

    e47f9a541ffeed772639abbecf4a070ced7f0dcaf8cae54e368633227cc8430c

    SHA512

    cee274314ace10ed8110397446823f0528b52ea575357687d1b881482be1f0eff3b0e9c1d30dde7b008f0e7e78567e72442d1e46899f8045c63c487900427fed

  • \c8c6b46cebdfffe06e\update\update.exe

    Filesize

    683KB

    MD5

    e265f4549a137e02dd049102ec73f8da

    SHA1

    9ef4c6208913b66670b19662845024b144511e55

    SHA256

    c870e6680683cefffb7f7ecad848ab956099095bdf8ae7a68055384407d8d6ee

    SHA512

    9f2da8efd2677a99e2484e6d2734bb320beceed8a482d95e99fea1fd21b52bc9818526ce4ed90dbc288b2da6ba2accf09af8bb75ed73fece89025727513f9ee4

  • \c8c6b46cebdfffe06e\update\updspapi.dll

    Filesize

    337KB

    MD5

    50166a8cac712edf084573eb0de57a30

    SHA1

    424cd652fa5db27d789f17c9473448c1e96a38ec

    SHA256

    c78fb1c4310b660659c749a6f9e04b6a1aca80579d9120ddbff9a909369347a1

    SHA512

    b5d73d75102ebd420b2a0e640b6b3d44b0d67820ac3e2b1d4941f6bc5e8672e2a179dabe9fc189c605ca236665f1dbb94b033acb8fe25414a534bd3620bbeaf8

  • memory/2280-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2280-5-0x0000000001003000-0x0000000001006000-memory.dmp

    Filesize

    12KB

  • memory/2280-59-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2280-60-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2280-65-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2744-61-0x0000000000400000-0x0000000000456000-memory.dmp

    Filesize

    344KB

  • memory/2744-62-0x0000000000400000-0x0000000000456000-memory.dmp

    Filesize

    344KB