Analysis

  • max time kernel
    143s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 19:10

General

  • Target

    a4f9bc6d511e630a8629557f5b79ba9cd8fcd23bdc8786ee5ebe15d1f61a40fc.exe

  • Size

    1.2MB

  • MD5

    c62f172c3b59196d73b8a8ba0be84bfa

  • SHA1

    09d83e5578eda48c72cfad84579b9cdb7f09e77b

  • SHA256

    a4f9bc6d511e630a8629557f5b79ba9cd8fcd23bdc8786ee5ebe15d1f61a40fc

  • SHA512

    819d209841a085db303e4caabe353ce13796a790f4bea8844556a160eeb4740dcb8ed7a0852382e212e56a7388c9ebbecc867789af9e4f3c90d3e908c38c40dc

  • SSDEEP

    24576:kIgUH4/nTnej9r2PlwBwd8/JF+cd3Hksx7qJ1j4coCYHb0YL2KGrEH7J:kgc09r2PGB1Hki7qJ1UcophTD

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
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • 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 8 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4f9bc6d511e630a8629557f5b79ba9cd8fcd23bdc8786ee5ebe15d1f61a40fc.exe
    "C:\Users\Admin\AppData\Local\Temp\a4f9bc6d511e630a8629557f5b79ba9cd8fcd23bdc8786ee5ebe15d1f61a40fc.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Common Files\System\symsrv.dll.000

    Filesize

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

  • C:\ProgramData\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\a4f9bc6d511e630a8629557f5b79ba9cd8fcd23bdc8786ee5ebe15d1f61a40fc.exe_v2\57d3e894-62ae-433b-a607-3dd6b55f7aa2.json

    Filesize

    2KB

    MD5

    08ccb46d6f6d8617ddb7bb7df978a290

    SHA1

    b818a14da4ba1f7ceb7276646e8f0ce491cfc739

    SHA256

    0ace6fa82314f233bf05a751e240260a603094252048364b982c6bc7489cea62

    SHA512

    5dfed4931003cf142029b6f7c888a45b7c8921718e86a77b5691378a78db887abfd13f6aa0f399147b11f40d775e3eb071ac0f92f386f7f4f0e1eb9eed576b47

  • C:\ProgramData\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\a4f9bc6d511e630a8629557f5b79ba9cd8fcd23bdc8786ee5ebe15d1f61a40fc.exe_v2\UNO.ini

    Filesize

    7B

    MD5

    be9d6efbd8632e482c64618f00a701fa

    SHA1

    cc7c0702a34305282ba77d4eb88db1fa0bbed850

    SHA256

    d94fd0c7e43df0a03014a44d79653c0845adb29e6222ca47718c46af90847b84

    SHA512

    c59eee3a838ec35f447c28a701289f3f35ea5ec08d0c38df54482b39a2219598074d49fc162b1ef46d9e20c336221f53bc86de7163183193001b466ff36dd5c8

  • C:\ProgramData\CyberLink\Downloader\Item0.ini

    Filesize

    496B

    MD5

    09a8d66bdea7b54e394e7b98d16fcdb0

    SHA1

    cf4b53ea6ad566da71210c8b345fa355bd74c436

    SHA256

    25667ba6b416dfe1fcc7971a2bbd2e35e57d1173429fcccd7b92851a70b4dc9b

    SHA512

    cc906397ec3887c0faf2c72a42fb13e35e68d21d2abaf1be0bae7de4edbf2db748ac9e20a41963d774fa454000893f0ee91717097f66523cc1b41519d49ecdd8

  • C:\Users\Admin\AppData\Local\Temp\Cab69AD.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar6A6C.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • \Users\Admin\AppData\Local\Temp\A1D26E2\690085887C.tmp

    Filesize

    1.1MB

    MD5

    6beb9d113086247bc7529bbf08aae03c

    SHA1

    3b92b56ead3a7b0c2fbf86f3ce1d3dfca332e776

    SHA256

    b2523687f20ec36094fda56804d85de6c3852d0cce3d33a9337841b15b5810b7

    SHA512

    a089ff074c5bfd4fe99d3e8ec9c760605b61e5044340dfc0be5236ce08e5a58520079b6833ac3fb859c804f452d2fe972eef6aea8f4f79defe54c2b988b91a25

  • memory/2172-165-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2172-174-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2172-157-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2172-156-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-161-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2172-160-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2172-164-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-153-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2172-171-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2172-170-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-151-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-173-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-175-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-177-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-179-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-181-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-183-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-185-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-187-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB

  • memory/2172-189-0x0000000000E50000-0x0000000000F72000-memory.dmp

    Filesize

    1.1MB