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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10/12/2024, 01:54

General

  • Target

    2024-12-10_ee3579580b42ee99adb8e7c43b0a7c60_floxif_mafia.exe

  • Size

    2.4MB

  • MD5

    ee3579580b42ee99adb8e7c43b0a7c60

  • SHA1

    73e92b419e2f43cf1db9c2fd399c6ec2211303b5

  • SHA256

    63e1c181a47207dff537b57f00057fc2453b9bf31ab01d19ef2dacd9a42fa699

  • SHA512

    08b25b472dc3446083750081517016de365c254addec321d8fb9e94f5d767580763f744b018b35aae3511151d4123004c08f4a7f98d5cee0a1cd5a68a994f861

  • SSDEEP

    49152:2fuQ7AkqIxGrGYyZa/tgrYJUGfZC3wA6EylfwEaFW31qW:bQ7AfrlyutLxC3sEwwM3UW

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 2 IoCs
  • Loads dropped DLL 12 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Network Service Discovery 1 TTPs 9 IoCs

    Attempt to gather information on host's network.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 5 IoCs

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

  • Drops file in Program Files directory 49 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • NSIS installer 2 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-10_ee3579580b42ee99adb8e7c43b0a7c60_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-10_ee3579580b42ee99adb8e7c43b0a7c60_floxif_mafia.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • 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 WriteProcessMemory
    PID:2096
    • C:\Windows\SysWOW64\arp.exe
      arp -a
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2808
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.0.1 0d-b1-f9-b2-db-97
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2888
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.255.255 3a-3a-a3-d8-64-df
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2796
    • C:\Windows\SysWOW64\arp.exe
      arp -s 37.27.61.181 f6-bc-43-b1-3e-dd
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2724
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.22 5b-e1-f0-c4-7e-c9
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2268
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.251 b7-b6-2a-bb-33-f8
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2760
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.252 c9-63-bf-96-d4-38
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2896
    • C:\Windows\SysWOW64\arp.exe
      arp -s 239.255.255.250 84-73-39-b1-69-95
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2980
    • C:\Windows\SysWOW64\arp.exe
      arp -s 255.255.255.255 fb-fd-a1-59-87-88
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:1804
    • C:\Users\Admin\AppData\Local\Temp\minidownload.exe
      "C:\Users\Admin\AppData\Local\Temp\minidownload.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      PID:1776
    • C:\Program Files (x86)\SogouSoftware\SogouSoftware.exe
      "C:\Program Files (x86)\SogouSoftware\SogouSoftware.exe" /Loader /DownLoad?status=true&softurl=https%3A%2F%2Fxiazai.sogou.com%2Fcomm%2Fredir%3Fsoftdown%3D1%26u%3DG30HdQ8G4ngDpbEHfW1gEXYhwD6lzpDc8HlTAHx7scbrxDthotkHK0HexvlOWvJbJd76eqnPU0MQPeaLH3gS2w..%26pcid%3D-2241203717467645359%26fr%3Dxiazai%26source%3Dxixi%26filename%3Dpdfwjt.zip&iconurl=https%3A%2F%2Fpic.cr173.com%2Fup%2F2014-4%2F201449152326.jpg&softname=PDF%E8%BD%AC%E6%8D%A2%E9%80%9A&softsize=19.05MB
      2⤵
      • Executes dropped EXE
      PID:2176
    • C:\Windows\SysWOW64\arp.exe
      arp -d
      2⤵
      • System Location Discovery: System Language Discovery
      PID:832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\SogouSoftware\SogouSoftware.exe

    Filesize

    232KB

    MD5

    0bc2d003fcfe3fa65f4c3ba7a015fa41

    SHA1

    72ed85bc1c57259b4f2ed36d16ce3fed4e30607c

    SHA256

    388069590fb9569b6c498f941d0565416cb52fc803648ee21b8c59917c63eb4b

    SHA512

    ae8d83e6ca21ee9b0d5e5845fac3a4dc01c6038243da36b4360b2f42763478265cdafc89072c47672b9738de1930e5e5191e2bf91715055cbd16a949d313ff24

  • C:\Program Files (x86)\SogouSoftware\download\download\.svn\prop-base\atl71.dll.svn-base

    Filesize

    53B

    MD5

    113136892f2137aa0116093a524ade0b

    SHA1

    a0284943f8ddfe69ceec90833e66d96bdf4a97f0

    SHA256

    ebbf7e8800c3446bc3a195fa53573bde1073b0bf7581a614372f1391a9286d02

    SHA512

    d3201cc19ae702a9813aa8bc39612ebaa48138903e9ede64dcadff213691f6e711876aa4fa083887c545325d5d8bf70649523c528090542459f2b01697180e99

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

    Filesize

    1.9MB

    MD5

    0618e9851ea4a522abeded8d40c2f19e

    SHA1

    c6772967fdf545e32d28f3b46e97aec5b9ff99f5

    SHA256

    506c374fbdf14420306e2da8d123c2138c2ceabd2046178317508a25949d3dc4

    SHA512

    b8c4816d81aa14646a3b690da76c0d33f59b7d419305638747503dba6bb84a63b906fe7d0ced59850ad25db37c1e0e6f3bd614a902f2f5ffb3d2bf74ec4e571f

  • \??\c:\program files (x86)\sogousoftware\SogouSoftwareLoader.dll

    Filesize

    450KB

    MD5

    b1ce2dba9515e144908aa34ac77f5a46

    SHA1

    0a3e601eeba273a16d815c5e59793eb73db9daad

    SHA256

    5a7349e46f16ec394af8575b666c132c010bacaa2c59da472b842ffeccc5623f

    SHA512

    d0a78b5de9126b8126b531fb8f72ae375aac898930dccd8a61f173c28470895daab56b368c34a5925020dfdc642785651445967904d8756bb1ce7c1d2f95525a

  • \??\c:\program files (x86)\sogousoftware\crash\ExceptionReport.exe

    Filesize

    110KB

    MD5

    5d4a135fedd49b7ab79cf2c2d8e2d611

    SHA1

    4f838f694da6f598d81f71751fb1ba70e6dcffa2

    SHA256

    1624c019d1f2befa579420a71649b352cae80afa1e43409e9ad5bf2a5ab0dd7a

    SHA512

    a83d95f4fabb69238c5f84bffa9421003226d9c6b75f632c04a3a282a0966cb8ef4363bf18d42ef65980f306e0bf47b762e0f2f412106da204940f215f52efd7

  • \??\c:\program files (x86)\sogousoftware\download\download\MiniTPFw.exe

    Filesize

    58KB

    MD5

    58bb62e88687791ad2ea5d8d6e3fe18b

    SHA1

    0ffb029064741d10c9cf3f629202aa97167883de

    SHA256

    f02fa7ddab2593492b9b68e3f485e59eb755380a9235f6269705f6d219dff100

    SHA512

    cd36b28f87be9cf718f0c44bf7c500d53186edc08889bcfa5222041ff31c5cbee509b186004480efbd99c36b2233182ae0969447f4051510e1771a73ed209da5

  • \??\c:\program files (x86)\sogousoftware\download\download\MiniThunderPlatform.exe

    Filesize

    262KB

    MD5

    e2e9483568dc53f68be0b80c34fe27fb

    SHA1

    8919397fcc5ce4f91fe0dc4e6f55cea5d39e4bb9

    SHA256

    205c40f2733ba3e30cc538adc6ac6ee46f4c84a245337a36108095b9280abb37

    SHA512

    b6810288e5f9ad49dcbf13bf339eb775c52e1634cfa243535ab46fda97f5a2aac112549d21e2c30a95306a57363819be8ad5efd4525e27b6c446c17c9c587e4e

  • \??\c:\program files (x86)\sogousoftware\download\download\ThunderFW.exe

    Filesize

    71KB

    MD5

    f0372ff8a6148498b19e04203dbb9e69

    SHA1

    27fe4b5f8cb9464ab5ddc63e69c3c180b77dbde8

    SHA256

    298d334b630c77b70e66cf5e9c1924c7f0d498b02c2397e92e2d9efdff2e1bdf

    SHA512

    65d84817cdddb808b6e0ab964a4b41e96f7ce129e3cc8c253a31642efe73a9b7070638c22c659033e1479322aceea49d1afdceff54f8ed044b1513bffd33f865

  • \??\c:\program files (x86)\sogousoftware\download\download\atl71.dll

    Filesize

    87KB

    MD5

    79cb6457c81ada9eb7f2087ce799aaa7

    SHA1

    322ddde439d9254182f5945be8d97e9d897561ae

    SHA256

    a68e1297fae2bcf854b47ffa444f490353028de1fa2ca713b6cf6cc5aa22b88a

    SHA512

    eca4b91109d105b2ce8c40710b8e3309c4cc944194843b7930e06daf3d1df6ae85c1b7063036c7e5cd10276e5e5535b33e49930adbad88166228316283d011b8

  • \??\c:\program files (x86)\sogousoftware\download\download\dl_peer_id.dll

    Filesize

    89KB

    MD5

    dba9a19752b52943a0850a7e19ac600a

    SHA1

    3485ac30cd7340eccb0457bca37cf4a6dfda583d

    SHA256

    69a5e2a51094dc8f30788d63243b12a0eb2759a3f3c3a159b85fd422fc00ac26

    SHA512

    a42c1ec5594c6f6cae10524cdad1f9da2bdc407f46e685e56107de781b9bce8210a8cd1a53edacd61365d37a1c7ceba3b0891343cf2c31d258681e3bf85049d3

  • \??\c:\program files (x86)\sogousoftware\download\download\download_engine.dll

    Filesize

    3.4MB

    MD5

    1a87ff238df9ea26e76b56f34e18402c

    SHA1

    2df48c31f3b3adb118f6472b5a2dc3081b302d7c

    SHA256

    abaeb5121548256577ddd8b0fc30c9ff3790649ad6a0704e4e30d62e70a72964

    SHA512

    b2e63aba8c081d3d38bd9633a1313f97b586b69ae0301d3b32b889690327a575b55097f19cc87c6e6ed345f1b4439d28f981fdb094e6a095018a10921dae80d9

  • \??\c:\program files (x86)\sogousoftware\download\download\msvcp71.dll

    Filesize

    492KB

    MD5

    a94dc60a90efd7a35c36d971e3ee7470

    SHA1

    f936f612bc779e4ba067f77514b68c329180a380

    SHA256

    6c483cbe349863c7dcf6f8cb7334e7d28c299e7d5aa063297ea2f62352f6bdd9

    SHA512

    ff6c41d56337cac074582002d60cbc57263a31480c67ee8999bc02fc473b331eefed93ee938718d297877cf48471c7512741b4aebc0636afc78991cdf6eddfab

  • \??\c:\program files (x86)\sogousoftware\download\download\msvcr71.dll

    Filesize

    340KB

    MD5

    ca2f560921b7b8be1cf555a5a18d54c3

    SHA1

    432dbcf54b6f1142058b413a9d52668a2bde011d

    SHA256

    c4d4339df314a27ff75a38967b7569d9962337b8d4cd4b0db3aba5ff72b2bfbb

    SHA512

    23e0bdd9458a5a8e0f9bbcb7f6ce4f87fcc9e47c1ee15f964c17ff9fe8d0f82dd3a0f90263daaf1ee87fad4a238aa0ee92a16b3e2c67f47c84d575768edba43e

  • \??\c:\program files (x86)\sogousoftware\download\download\zlib1.dll

    Filesize

    58KB

    MD5

    89f6488524eaa3e5a66c5f34f3b92405

    SHA1

    330f9f6da03ae96dfa77dd92aae9a294ead9c7f7

    SHA256

    bd29d2b1f930e4b660adf71606d1b9634188b7160a704a8d140cadafb46e1e56

    SHA512

    cfe72872c89c055d59d4de07a3a14cd84a7e0a12f166e018748b9674045b694793b6a08863e791be4f9095a34471fd6abe76828dc8c653be8c66923a5802b31e

  • \Program Files (x86)\SogouSoftware\SogouSoftwareLoader.dll.tmp

    Filesize

    531KB

    MD5

    54001a18e0d401fe300be8355c911dcb

    SHA1

    28e456f9f414d594ef0ef14dcef68b076fc4823f

    SHA256

    6aaf6ca2cb74b91e67207d0266d0dd4ebb10487cd83fc30ea8bc73ccff69adce

    SHA512

    9d8c5bf8ebf58931de4326851cb22f8c0d7cb7b315d1ec1166ee8842f9b0ebfd57114e5bfd7761259bb99351fd941fdc00cd424c586a987f480013633e68f5a1

  • \Program Files (x86)\SogouSoftware\crash\ExceptionReport.exe.tmp

    Filesize

    190KB

    MD5

    108695ae8b4aa324718c109dfb191e2d

    SHA1

    99d373720fb57b1b41f80e522e2b958473e01526

    SHA256

    4329d8483e205a2dd674553765899832d2b376e020a264601b35a1875d099574

    SHA512

    1ec416e6c7ba73ef995ba6dd030122f8b79527d2111ffb3b76482a264bc272ef957d01b320d5ee43efc0c6c638e13a0a908186cbb40cd6bd9092ef519946b157

  • \Program Files (x86)\SogouSoftware\download\download\atl71.dll.tmp

    Filesize

    167KB

    MD5

    8e5b55d525691a918f9110f9ddce72d9

    SHA1

    3e4ddcc55e00736b3f97ebb90482b26dda0dfc21

    SHA256

    d33e90e73d321260c818c55caa194cf64b586552da498fc94fa1ceb172e75eee

    SHA512

    ea5a53bf535f2ce0be5f0b2d4094debecad531c85ea7507263f5cc7adc17b6255cecc92719cc1bbc2c4f6a11e4f40d333bc387e0fc98a5e088b8d4932114de38

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

    Filesize

    71KB

    MD5

    4fcd7574537cebec8e75b4e646996643

    SHA1

    efa59bb9050fb656b90d5d40c942fb2a304f2a8b

    SHA256

    8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

    SHA512

    7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

  • memory/2096-6-0x00000000008E1000-0x00000000008E2000-memory.dmp

    Filesize

    4KB

  • memory/2096-3-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2096-108-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2096-110-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2096-109-0x00000000008E0000-0x0000000000B2A000-memory.dmp

    Filesize

    2.3MB

  • memory/2096-118-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2096-116-0x00000000008E0000-0x0000000000B2A000-memory.dmp

    Filesize

    2.3MB