Analysis

  • max time kernel
    100s
  • max time network
    101s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    20/02/2024, 18:05

General

  • Target

    setup_installer.exe

  • Size

    1.5MB

  • MD5

    78418bfb23c7adf70828f675e990de49

  • SHA1

    534a26817c39972287abf166bb00c831440a1e57

  • SHA256

    b14218cb639c6afa35a66cf418035ce10475b53f5386896a44327fd48d8447c8

  • SHA512

    5df88e9bd4d241b69acba4499845e68286cd24fffed582864c24ad4c5d9bd47041c99ac32cc023c7a6dbe4cecaed39882274cbf4e12aedd5220c6e51075a8dd8

  • SSDEEP

    24576:xcVkKSqXCeomdCFDWHp/7F82H1qjUEPY/RQ5DsvLwcaBhdZIl9mTkPdei+uYvSm1:xcBFCpZgu2VqjUEwJ84vLRaBtIl9mT4Y

Malware Config

Extracted

Family

nullmixer

C2

http://wxkeww.xyz/

Extracted

Family

smokeloader

Botnet

pub6

Extracted

Family

smokeloader

Version

2020

C2

http://conceitosseg.com/upload/

http://integrasidata.com/upload/

http://ozentekstil.com/upload/

http://finbelportal.com/upload/

http://telanganadigital.com/upload/

rc4.i32
rc4.i32

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 7 IoCs
  • NullMixer

    NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • RisePro

    RisePro stealer is an infostealer distributed by PrivateLoader.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • ASPack v2.12-2.42 5 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 23 IoCs
  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
    "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\setup_install.exe
      "C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\setup_install.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2092
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c karotima_1.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2696
        • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_1.exe
          karotima_1.exe
          4⤵
          • Modifies Windows Defender Real-time Protection settings
          • Executes dropped EXE
          • Loads dropped DLL
          • Modifies system certificate store
          PID:2600
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c karotima_2.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2604
        • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_2.exe
          karotima_2.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks SCSI registry key(s)
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          PID:1712
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 372
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2888

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_1.exe

    Filesize

    337KB

    MD5

    65d122622d7539f0cd9b47812c26e212

    SHA1

    c0ef5a7977c7cdf3bd5eef62af0242d0c2c88d7f

    SHA256

    26a465712504b9c6e33b9bd66245f66e1e4b0b14233f9d2d875077fade0fce54

    SHA512

    f7ed2dac6ab35cd9f3fbd3a8b84174f7db20b8681133d45a18fa24114ae1c301d0b703e5b45a200606e380a814ca59a31972bd80d63e0d89527df4242298c06f

  • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_1.txt

    Filesize

    362KB

    MD5

    ce04ad8bf5ecb90049a94eb3dd88de41

    SHA1

    de7da831a3cf4704590513d36238e1e79130b9b6

    SHA256

    58d0419de5b71bc127963de102e217c94b20b00cdd119fe592b9dd3b75226ca3

    SHA512

    eec337f237ca22741eeb71506ddc0bcc31c1f4a5c4e37d5d3b59ca77b826e85150a10085cc84a59ba034f38169b22ae56e9eccf68b620039183364cf7627147f

  • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_2.exe

    Filesize

    183KB

    MD5

    801fb18516635addc0d401430c41b118

    SHA1

    6c6d6126e42dc9d1463036a685459dabd8ac7e45

    SHA256

    1a04b31ab225f1822b7b972d37e2490bb89fd7bd05aa37155c45f5a0287e8305

    SHA512

    56c3fa81fd553165fdebad282952aeec1771155a721ff1923e695a59d3f2129ecb94d1694d677e06f85322896eecba0ee840a9d1037e9e5881d3bb88f1bcb7b0

  • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_2.txt

    Filesize

    222KB

    MD5

    80e74cf9f38c5712c6c2432a509c8bc7

    SHA1

    62ccdca04b3685728ce7f1a785cc01f3a3f3b3dc

    SHA256

    9ff44c4da853cdbe606d2cfe4d04b410c3ae603acf0f1d3f75195b6236e0e123

    SHA512

    d602cd95ad38cacae41b4848e72ac54ad81d287e1c825d68a088009512b14b5290a5a6c3032ebb2c91fecb5f743d519e92f1ccb27f5fe2841094a693d2b8de49

  • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\libcurl.dll

    Filesize

    218KB

    MD5

    d09be1f47fd6b827c81a4812b4f7296f

    SHA1

    028ae3596c0790e6d7f9f2f3c8e9591527d267f7

    SHA256

    0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e

    SHA512

    857f44a1383c29208509b8f1164b6438d750d5bb4419add7626986333433e67a0d1211ec240ce9472f30a1f32b16c8097aceba4b2255641b3d8928f94237f595

  • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\libcurlpp.dll

    Filesize

    54KB

    MD5

    e6e578373c2e416289a8da55f1dc5e8e

    SHA1

    b601a229b66ec3d19c2369b36216c6f6eb1c063e

    SHA256

    43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f

    SHA512

    9df6a8c418113a77051f6cb02745ad48c521c13cdadb85e0e37f79e29041464c8c7d7ba8c558fdd877035eb8475b6f93e7fc62b38504ddfe696a61480cabac89

  • C:\Users\Admin\AppData\Local\Temp\7zS8B681E86\libstdc++-6.dll

    Filesize

    249KB

    MD5

    6fbb80ab3cb67c5801d363c85eef4979

    SHA1

    011a11b344cdd35304c27f8f138a5d0e2107cacf

    SHA256

    2193045512aaa2243be0983ba6f11d3e39e69672a5ecddcb63ee06582a135624

    SHA512

    4021c2051b0f37debc96ce96d66d5eb6f9767271fc4daa5d6ddc6dc3428b05823d905a43becf7f6a09e34854f58df6be86a022a5525fb94e2cee1b4751f56a50

  • C:\Users\Admin\AppData\Local\Temp\CabA8A0.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarA8E2.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • \Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_1.exe

    Filesize

    223KB

    MD5

    23a43cbf0209dfe2b6eb0890f56401d5

    SHA1

    9915b4f6a3cc9619da21c6e9c4480e9a75c45d47

    SHA256

    e2e9a0b5a04b49d0e6cd6df3e5efd4348d1767b6d77e803b0060245bcde02e0e

    SHA512

    e4dae4dbcc1495d5db362fadc59aa6e98f2e0e03684556a6b9ef667b3d961784fcd95448524fb418ad4f38038f77ab472fc1e4eb8c9844bbefe5e0c33b59fd92

  • \Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_1.exe

    Filesize

    98KB

    MD5

    ed7f5444ea8fbf529b4d5fcf59010242

    SHA1

    ae50ee6a5df3d8f294194152bbe169499fb7364d

    SHA256

    098ec317b15331df8b69f3ebd811340fee5d4601ac068aadb234e900fe4e1372

    SHA512

    c227440018c665acdea1edce7f1dbcd3e17f2853b470dee2eaacf1004ef98c166cc5167581dc74f9214ab7fb0b7b80101a2013db60b5a9a03f9f6f3552a205de

  • \Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_1.exe

    Filesize

    79KB

    MD5

    55dd84b0e5c7944a9209e869ae70a98d

    SHA1

    9ba2d8a97b0a6e89088ec81e07b9f74e47fa32f9

    SHA256

    cc5e020287006f0498d328f3e888d99cd05279048588aee947f22b53b642cd1b

    SHA512

    f261176385a42cce3c3bba17413589e14de2082066e552566151581a89d35569bfc8c9d7f40b11dc3697bb341d0b88f6fb16cf786a72033f107f76e877d58ab9

  • \Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_2.exe

    Filesize

    198KB

    MD5

    cf8bbfa6f43cdc8823d15b8e2c89b8be

    SHA1

    5ad23acb472bddc4988e354dfd14309c7feeb59c

    SHA256

    f3d554f5e9d4eaa1170d76dd143bcb33c2c46d70fb235868e5cad54dd38caebc

    SHA512

    8c37c2f8cc208fca92cde2677afb0e9a5cfd9cd58e625a3dc288fc2d9a3fac6b3025235991328c3acc96c4af3d88ea8d5c74a48f04e7521dff53fb1d16e1b3f2

  • \Users\Admin\AppData\Local\Temp\7zS8B681E86\karotima_2.exe

    Filesize

    48KB

    MD5

    c0d215472d53240b8619ded3c177279a

    SHA1

    cda87cda88bf1d59599d555176efbcff54827624

    SHA256

    bfd66ecca9cf618aeec0b491967aa6970b1254fcb1d15626f9bc946a56bac48b

    SHA512

    2b372507fc8ea26612f5ef1d8fa29fc389d21b12ed56c6f7e91a9420e52c3ca53bd88b7354af22057c4e2138a5209b3899bafba9e7099bc7700034fb1f80221b

  • \Users\Admin\AppData\Local\Temp\7zS8B681E86\libgcc_s_dw2-1.dll

    Filesize

    113KB

    MD5

    9aec524b616618b0d3d00b27b6f51da1

    SHA1

    64264300801a353db324d11738ffed876550e1d3

    SHA256

    59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e

    SHA512

    0648a26940e8f4aad73b05ad53e43316dd688e5d55e293cce88267b2b8744412be2e0d507dadad830776bf715bcd819f00f5d1f7ac1c5f1c4f682fb7457a20d0

  • \Users\Admin\AppData\Local\Temp\7zS8B681E86\libstdc++-6.dll

    Filesize

    199KB

    MD5

    86685e4b99ccdb4d484f24c3bcf5208a

    SHA1

    d1d72d83558d3bdb3b2c845ff0543f29605639ef

    SHA256

    81eb56f6e895d886ab25c5d476a96924444b960f48e494d7be94b8b711feb360

    SHA512

    3ea5a80e8afccee71a72ee1cce68344c8e6c00732a90e4ca39ab3d59d3ef9550bc908e3d78fe159c9678ee1b700d2564c612951648a6185115a2c203304190df

  • \Users\Admin\AppData\Local\Temp\7zS8B681E86\libwinpthread-1.dll

    Filesize

    69KB

    MD5

    1e0d62c34ff2e649ebc5c372065732ee

    SHA1

    fcfaa36ba456159b26140a43e80fbd7e9d9af2de

    SHA256

    509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723

    SHA512

    3653f8ed8ad3476632f731a3e76c6aae97898e4bf14f70007c93e53bc443906835be29f861c4a123db5b11e0f3dd5013b2b3833469a062060825df9ee708dc61

  • \Users\Admin\AppData\Local\Temp\7zS8B681E86\setup_install.exe

    Filesize

    290KB

    MD5

    118f130d93db3be4452ad8a0751509df

    SHA1

    4cac4b964784aadc7e6f41c21b854c668dca6981

    SHA256

    f7dec887c3345567ce86ce60cc8841a6a54eda35049811049debd1c5451656f4

    SHA512

    ec263d9cfc0a0324f8f79f6f6703f507d06f454cbc9964595a00d9606aae86c34920c8a10ef3d4413aceb85e33d731634200c0e7ee099b8a35baf8e69f46234f

  • \Users\Admin\AppData\Local\Temp\CC4F.tmp

    Filesize

    1.2MB

    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

  • memory/1220-124-0x0000000002AD0000-0x0000000002AE5000-memory.dmp

    Filesize

    84KB

  • memory/1712-117-0x0000000002CD0000-0x0000000002DD0000-memory.dmp

    Filesize

    1024KB

  • memory/1712-118-0x0000000000240000-0x0000000000249000-memory.dmp

    Filesize

    36KB

  • memory/1712-122-0x0000000000400000-0x0000000002B7B000-memory.dmp

    Filesize

    39.5MB

  • memory/1712-125-0x0000000000400000-0x0000000002B7B000-memory.dmp

    Filesize

    39.5MB

  • memory/1712-128-0x0000000000240000-0x0000000000249000-memory.dmp

    Filesize

    36KB

  • memory/1720-28-0x0000000002910000-0x0000000002A2E000-memory.dmp

    Filesize

    1.1MB

  • memory/1720-27-0x0000000002910000-0x0000000002A2E000-memory.dmp

    Filesize

    1.1MB

  • memory/1720-20-0x0000000002910000-0x0000000002A2E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-52-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2092-64-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-66-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-67-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-65-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-61-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-62-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-63-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-59-0x000000006B280000-0x000000006B2A6000-memory.dmp

    Filesize

    152KB

  • memory/2092-60-0x000000006B280000-0x000000006B2A6000-memory.dmp

    Filesize

    152KB

  • memory/2092-57-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2092-56-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2092-55-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2092-47-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2092-49-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2092-50-0x0000000064940000-0x0000000064959000-memory.dmp

    Filesize

    100KB

  • memory/2092-53-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2092-54-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2092-48-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2092-37-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2092-34-0x000000006B280000-0x000000006B2A6000-memory.dmp

    Filesize

    152KB

  • memory/2092-30-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-129-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2092-130-0x000000006B280000-0x000000006B2A6000-memory.dmp

    Filesize

    152KB

  • memory/2092-131-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2092-132-0x000000006EB40000-0x000000006EB63000-memory.dmp

    Filesize

    140KB

  • memory/2092-133-0x0000000064940000-0x0000000064959000-memory.dmp

    Filesize

    100KB

  • memory/2092-134-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB