Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28/12/2023, 20:30

General

  • Target

    f61529037f2797ba220ad590ab75f524.exe

  • Size

    742KB

  • MD5

    f61529037f2797ba220ad590ab75f524

  • SHA1

    6d8ef255f14110f8da3fc28fb98361768cbcbafb

  • SHA256

    40faadf5f6cfa52935883b71c6d25567faa8e7aa336012366ab9efb9d2177d2c

  • SHA512

    4ab0809c929abf4797e55bcf1c9bf63c541e13fe7f41533d3462257a7d04fd17007c6e4bf1f41379a8a11909afb2ff3a1eed0c21091fba791106cf145538877a

  • SSDEEP

    12288:rWr9bbFmtq6uI0UrzuUKNfaqBjuG0MCtHuFPxhwY1+uzlJMA4O8c5geV:rWhBmiIfXwNCvBwhwck2P5gy

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 21 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f61529037f2797ba220ad590ab75f524.exe
    "C:\Users\Admin\AppData\Local\Temp\f61529037f2797ba220ad590ab75f524.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\rinst.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\rinst.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2728
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:3056
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3056 -s 384
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:2140
      • C:\WINDOWS\SysWOW64\bpk.exe
        C:\WINDOWS\system32\bpk.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:2604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    242KB

    MD5

    d7bb223c7cd79667337817f9aceb03ae

    SHA1

    e8041fea371f16a2d926d2992a9f8cf0e4098d13

    SHA256

    935958d5d21d954ae4d1b0bbeb81a8b2dc089e0585c49f3770217c2dfcc8281c

    SHA512

    a462144a184fa2a4feb6e5e6e1c02f6716510a441bf7149f72b4427a975e2719eb40facd79530c93529c675e18ffac21b28cc0977e2b7d193d91d0736c708cb8

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    223KB

    MD5

    448ff693721a98fc0eebbf347760730c

    SHA1

    d5d2e422eb8dcb0f91848f00f887bb137fb28de0

    SHA256

    ea4329e3fb8767976a523069cbff073158d8ef43a921f50c50797336752a6877

    SHA512

    e25747b335697093ac263916e8165e85961c017b46a8e4ad6d9e3b0ec1d084644e726f02d68cadc078079bbe7e5b1ec84a353715d43376cbbb294d823a55ed01

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\bpk.exe

    Filesize

    117KB

    MD5

    212e027f956bc3d0e52115e5642455b6

    SHA1

    a9b41736867c0d5ef45c09a9a30fb72832da0110

    SHA256

    53d945e2d7fcd9ebbe118c9af20cebc49ddea051864634b894f7607861f5476b

    SHA512

    bf976356eee4b705eb4f4af9729ff53230b1e786c1aff4ba42c18260f8a294f27e72c9bbd78281799e59ba4ce23137e7301d721617e7d12247310157496225c9

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\bpkhk.dll

    Filesize

    21KB

    MD5

    908dd7421e90ef30c8b90c8eb57cab07

    SHA1

    d74a0a42f033bbb4261eaec84f06c37aab70bebd

    SHA256

    f078c6b98015ceee90fa9e9cb4c3d4d3cc512163c2304ad9e4aea35766aa163e

    SHA512

    b8e1c82c51d81bb01e0a87fb70c29c4c61df23d46146fd8e03a36fea89d4c0d0053bf5757baeda708adb02fecc3df3dc76d12bd6f37d28a6bf3a7581fcf289cd

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\inst.dat

    Filesize

    1KB

    MD5

    cc01c08c7c310119474d7e8ff589743f

    SHA1

    4320e3572a731b5c1262750619bcc9c54de08b19

    SHA256

    8d93a6a6070390e547f0a16d8215b86d97265b86a183e0bf66ab4055a306cf7c

    SHA512

    79ba34ac0c5ef4d2b5a4ade5905402e24a6006542d7b36cc14267c055e7725f06b8a2200fb716cd6f133a062a9be34c2e4a8675cb5a6c1f9f2f2125c8731fc7c

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\pk.bin

    Filesize

    7KB

    MD5

    49e689e5829c2d64d3efc865a34602d5

    SHA1

    dbb1a30a4865a51369a3843a997eb437ad9cfcda

    SHA256

    2f2c1bc96b99528e95bf6d328adc564ef679d0356d8f4fe4477e42446fcc7734

    SHA512

    04ff490b8a6e355456700e07dc257a86a8bf40e2fa1f53cf8fda9889299cc17795dccffbb9b667f3e3af90b9a1e1ad88d2eea4366e31585f02a0155d5de00673

  • C:\WINDOWS\SysWOW64\bpk.exe

    Filesize

    42KB

    MD5

    b975d50e6e00688b11bededc3782548b

    SHA1

    aa0f3398d0a0b010c37fca3b542b9f1bf21a6215

    SHA256

    a254073f1874ce9d85d639448fc6207d110d9e99463ee10af16c979beee98c0e

    SHA512

    c4072f80849115f24da1d5dd99908bb15d0d758862295f321610c1de6ec8dca348225f757125ed47e3f0130a113584df548052ff064892963a1b119f2315c610

  • C:\WINDOWS\SysWOW64\pk.bin

    Filesize

    7KB

    MD5

    6ba988044478023cc4b072e42360fb89

    SHA1

    f52abd197c5300103d718a7afc4351d3bfa2befc

    SHA256

    104cb6739a79fdf3fb70e408962551f8380dfcdd6106eccee9d76243133b095c

    SHA512

    72d76077a3923455173d8bd635c8277f574a7172fec75034957433fc6e802e92a34167c96c59977382c0ba76cd3161532c8a1916dec1cd42eee785ec9932a8fd

  • C:\Windows\SysWOW64\bpk.exe

    Filesize

    26KB

    MD5

    0cce21e7176137933293a838eaea5c45

    SHA1

    c1cd72512c8c0e3189bf07d56d5b6a60b6161856

    SHA256

    e10284df00568224847e83e033fdbaa9a6185a8b8c3b865c5dfcd789e55ddd17

    SHA512

    6b5b58e7e591d373d1e5b7eaa295dddb042be45f68b60036a20727ab79ab512c0b4c2c8f3ae8801fa50b2e5c444a889f2c6ce2b1ea718847deaa180eae922db0

  • C:\Windows\SysWOW64\bpk.exe

    Filesize

    37KB

    MD5

    58c734e56c4fa0924304befe5f996120

    SHA1

    4ca80e2b61a20a2b5a17b293d3cc04917fedc057

    SHA256

    50e26bdebca754c6b5f3adbf536bee2c4d37ceeb3fdb2d45f53b9440d2002a2f

    SHA512

    23bdc1ba9a700a1c01a9a28a59c6d243de032194e475a306f8089add6740af0bf60cee96ffc58ec4ca77e102f3db0c20b08baeabd175c60d695bfb0f0051bcc2

  • \Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    263KB

    MD5

    f8f74fb81b2c8af561c63374b99034d3

    SHA1

    32ed988341cd4a76bfbc0d4cbcbbbd2e54abaca4

    SHA256

    d354f7d9c8c5b9220fece8734483fcc303eab59ceeadb346cb7bc117d603c768

    SHA512

    87f98f78561739fe61cccd1cd4ade4f9d167026ac4da88c0cc2388e756f8c26f399078b5f0d529b9380950f28ca7ab841ca8f745814fe6b3b5f9d1db70c37d5e

  • \Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    306KB

    MD5

    a53c53073f27f4f3a92e54ec9955c13d

    SHA1

    a37623ee9e9df70ffc1481caaf9ba6969866cdb3

    SHA256

    7d2b44545d441e607810727a17e23edc8a187f29d526fb2def592a46dc45fd49

    SHA512

    df92aff6af29016dcdd75a322d85be7af6466882598b0311a33fee84e635ba297a70c78b23e3abc860035b4bb7af01e498e7fdc4689b3d41f2a33da77aaa02c1

  • \Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    408KB

    MD5

    b2bdab4e497e689c969331336d3b79ce

    SHA1

    97db006e7ad7e0927421b80965deab01a70825ba

    SHA256

    8b7231541601a75e1f0418a8a241b680db85d07ed4a23a5e02df2a409b3a287b

    SHA512

    8423140eac4f72b373b4e008b55fef9a54d5f6cc2d53af933cfad231c4093a67bbd3855037459648f012a1668d7aa48c703b5c609ed8274a33784a763431368c

  • \Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    343KB

    MD5

    1277d69ba582e10179971a639a20b810

    SHA1

    de5d5677601a41b134489d1d7b96ae354d05a744

    SHA256

    5be372ccc939bc9070b1a7bc6a8822700ceed592e42f6fb5abbd82e3c7221bbc

    SHA512

    b5a9277287e4e7c1efc7563a132e85f4e4fe79c3b3978546d433f88f0c3076c2f466dbb2ce370faaaa3d9dcc3bef10f8031cdf7f82277d1d970a2cafbe9aadc5

  • \Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    398KB

    MD5

    473474564576bd874f27ff9fcfb9f523

    SHA1

    7750cf66683b87143176ddf4ff9a177f3fe93f04

    SHA256

    3e777b5dc868ad7163109c86a3b863e4470ce207dda861f814e0fd99cc63f359

    SHA512

    2bfdede799a406002ade630deb95b5ecf0095c8b48a80254ccee34bf725236bea397ac42c0b8ea7c54f651a8cec1376febce7a1071a61f376a1612f8b8a3add2

  • \Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    115KB

    MD5

    e68293064d280bca0f1e9f8af2501caf

    SHA1

    f57e376149d3dde48664c07ce968993f7aab820b

    SHA256

    45eef7a47e38ecce5ab36d5c9ad5fc1686682be365ea87eeb634e0821077ba0c

    SHA512

    99e9083a4e0b7cc3f135b0283905dc174906e0719aa5f4e24b83be3e84b1f6d632f87f0f89015826b4a3b7e0e249dc6051b7b78f30c0909e605562c4290968ab

  • \Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    168KB

    MD5

    3960090239c1b4044ff5f342fa1d9794

    SHA1

    380efd0b94b962f45a5404903913195ba6058a1e

    SHA256

    99b7b4b1fffdfa41f389e1a2c202ae390e50a658871c9feb392e431a8806e6b4

    SHA512

    8815e47ec2b8f9e839a2f57ae3368ff4466836e42b2efdf283bfa2dd7bf2f5a5ff41df0a059b2838bdf7c26168a8a95a0e2bb879ca3552d4fb028fbc2072d58a

  • \Users\Admin\AppData\Local\Temp\RarSFX0\ISTIRAP.exe

    Filesize

    79KB

    MD5

    bc03d574539446dcf823622153ce6ab2

    SHA1

    0c3061c2e9eeb3768216e1eba8e3aa1665451ccd

    SHA256

    adf2b1b32ed1936b32703105d36b9551333a90a09123a860e3b58ff823e4374c

    SHA512

    f18683b784a6d9539b576c7fb7b5fab808e4c298ae3a61454f861008ac0f8a7b549d3d812578d5c3d5c50699d8bb21efc3b43595eadee4de74bab58d2b7336f0

  • \Users\Admin\AppData\Local\Temp\RarSFX0\rinst.exe

    Filesize

    22KB

    MD5

    9a00d512f9e1464ad793702cf2b1eda0

    SHA1

    39a47a90cd3dd132dbab9f5052dda38dbd7c63f6

    SHA256

    98d257f639ee9df968f77b1f66c78230d07d86e58a7ddf0d306a24af3873dc5b

    SHA512

    18604f20351db1d418f48f2eb023be07588754b428b5d6abb0a7c40d6bf174ce7dcab2ae6e06f22585e12f1bfdb6e408b17bf20e2a7ba137620002ac04b8b4ba

  • \Windows\SysWOW64\bpk.exe

    Filesize

    181KB

    MD5

    ef3d72043408475f4b7afeae38729496

    SHA1

    597093aaf46ae1e4ac055cf304e911778f5591d1

    SHA256

    7d1cec4e7bcd763bcf5b4b9174bb7005afac4da855db74094b399e3a03d5f3dc

    SHA512

    9fe3a2a3be0c5303d7de2907d18033ba1ba22f992bbbbf65d22513f820fd2ac9ff8fd32914cc455d495909635fdf71cfc3b3002c43829a8d0a66253b5049ee46

  • \Windows\SysWOW64\bpk.exe

    Filesize

    80KB

    MD5

    9a09252e6dea4ff81c982515a6ea62e2

    SHA1

    b3ec4264abc773840242a0f3313678519863b877

    SHA256

    2e4a2eac3d20fddb611edf8bdd150481d8cdba96a6b1ac2799cec02da045266e

    SHA512

    8b470297e84cc29cb1a865ff6e15391c996cf0d8a8975e5899d1d8d31ece80507bfa818860bd3c177d114eed3cf215ff57e89958f6893129472f7bdce2f80880

  • \Windows\SysWOW64\bpk.exe

    Filesize

    68KB

    MD5

    0dfb784db7e2c058b5fbd2d0d079bde8

    SHA1

    d7d9696377ee320c4c787f4fca26d6f96a5df591

    SHA256

    02a12fc443da67591a8e33996ba18b5e4c7341d635331d8a6fff5071375a45de

    SHA512

    a1c86c287d7f215f6814ed3c3410324ff9c37d031b41ec4eb083acd5c0110fc4abdec02b09396a6e1fb649befa0e4da711643b4e56db23233f527854ecc659ff

  • \Windows\SysWOW64\bpk.exe

    Filesize

    83KB

    MD5

    2f949b1939c52771e0d8ef67452af304

    SHA1

    1c4eafa47a38eea2df516840204595de36bd3d10

    SHA256

    8e3e83326b2c0af6940c29c71d5dd72d306f2a37c108bd33a7db6389675599cb

    SHA512

    0f704fc030abc8fcc64c589a8ed7d89a204bd226c0582f0a2f5880ae39b32b3a2f95690c512bf3853765fae8aa83d2fd94d73cabaa3c3f998298c994b603d252

  • \Windows\SysWOW64\bpk.exe

    Filesize

    85KB

    MD5

    dfb18d861d1a601264192a503a36354e

    SHA1

    bf48030bed46b4fa2004b599a674396cd38e5b5b

    SHA256

    cf0f6524d049686a4d1687ef5bcc55062ef8d22c4c4760c87bd1109e18866f1c

    SHA512

    3812088faae568a5a1130b500e163a7044e9d1e92e9b21e977a181294fd26b7592e7817ab028f1ccae696ea2860d9e5613845bd44edb204dbaa7ca142c30c579

  • \Windows\SysWOW64\bpkhk.dll

    Filesize

    21KB

    MD5

    a11068817ba83d7b8c61a5c53c5a72ab

    SHA1

    cf4685ae095d5b1e92062c9d299cf9d250b6bab2

    SHA256

    0ee6154256e55de7d451e729c590f5bbf65479503099c3dfeaa10deac6fe4901

    SHA512

    a5ef2ec37eaf688c1fa926349227d25de1c5568c5630e56f8e5e3104ae6ee45275de8599d33d164cd2fc7c5b5dd853433e4228ff553d83228ae3f925446e9bae

  • memory/2188-69-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2188-70-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2728-44-0x0000000002500000-0x00000000025CB000-memory.dmp

    Filesize

    812KB

  • memory/2728-28-0x0000000002500000-0x00000000025CB000-memory.dmp

    Filesize

    812KB

  • memory/3056-43-0x0000000000590000-0x00000000005E0000-memory.dmp

    Filesize

    320KB

  • memory/3056-45-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/3056-42-0x0000000000930000-0x00000000009FB000-memory.dmp

    Filesize

    812KB

  • memory/3056-41-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/3056-71-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/3056-73-0x0000000000590000-0x00000000005E0000-memory.dmp

    Filesize

    320KB