Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    14-03-2024 19:34

General

  • Target

    setup_installer.exe

  • Size

    1.5MB

  • MD5

    d9ff1676cb62a8cd8cf24bb2c5a3d8e3

  • SHA1

    d8f2ccdf1e3feb18f726ccd35f8f80611a8b019e

  • SHA256

    abe3c1a4d337159c98b15959921d18f0f28add956f482c703cb5609c2656c630

  • SHA512

    215812b82cf4e5c00132538d4f1e3447294633ae08d9626d85730d99ba9e401a3f9843890f82506fd45c57b89ebda51c3efa7ef4c0f29ddea175c8a32f181e5a

  • SSDEEP

    24576:xcVkKSkXCeomdCFDWHp/7F82BzWTpEPY/RQ5DsvLwcaBhdZIl9mToWznWFJpJYqu:xcB3CpZgu2BCFEwJ84vLRaBtIl9mTo8/

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 4 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:2912
    • C:\Users\Admin\AppData\Local\Temp\7zS06BA0226\setup_install.exe
      "C:\Users\Admin\AppData\Local\Temp\7zS06BA0226\setup_install.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2468
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c karotima_1.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2352
        • C:\Users\Admin\AppData\Local\Temp\7zS06BA0226\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:2460
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c karotima_2.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2360
        • C:\Users\Admin\AppData\Local\Temp\7zS06BA0226\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:2412
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 368
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:1360

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    67KB

    MD5

    753df6889fd7410a2e9fe333da83a429

    SHA1

    3c425f16e8267186061dd48ac1c77c122962456e

    SHA256

    b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

    SHA512

    9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

  • C:\Users\Admin\AppData\Local\Temp\7zS06BA0226\karotima_1.exe

    Filesize

    175KB

    MD5

    37e9ff6e68bc8554b9eb330092ba7ffc

    SHA1

    28afb283c0f4c4e6da7f886021ce3b731fef0b13

    SHA256

    c3577497302d2d1f02800bfd1b2c10e44b6951d4f4f433fb61c56b4ade201be6

    SHA512

    a8a1b0ef99e0a12991f7a21c3c9fcc77a619fe6be56cd7943ee32848ca1199311285cc1ec09c414a44a4c43c05c26ad47f956b4aacfbc776acdf586e308a7636

  • C:\Users\Admin\AppData\Local\Temp\7zS06BA0226\karotima_1.txt

    Filesize

    252KB

    MD5

    f37b95a3b494da7aa17217bd0d1df439

    SHA1

    ba8d1ab3c5311f90180824f365b29432c6ff1664

    SHA256

    2c8814fc1bd03b91ccb843cd64ee120ed580c9643b04c9235cba00fd55c34226

    SHA512

    075a627c04bef31b7b854ad5bdf8df56178a717837a6c50ee00e01d9ab8570374280908e6a5d9912a55afdc82c0fa7268ad1b25dcbd8809d5968136acce8a645

  • C:\Users\Admin\AppData\Local\Temp\7zS06BA0226\karotima_2.txt

    Filesize

    201KB

    MD5

    7e3cb6bf4000e17ada2121b84b63ddc1

    SHA1

    3d9d09e4603b89913b0eca604021df3c49b4aa31

    SHA256

    439c74d75423ffb0071e342f248c48567f50f50e1f836ae119f5db1387147188

    SHA512

    0989ca525843ca03ebfb32b1f000307e7be9674b7453c7a8724f2206028e9ecc04b9f2ef130639858041d37a2b7a11d7e9b1e23197f22bb0e95f9d6f75291ebf

  • C:\Users\Admin\AppData\Local\Temp\7zS06BA0226\libcurlpp.dll

    Filesize

    54KB

    MD5

    e6e578373c2e416289a8da55f1dc5e8e

    SHA1

    b601a229b66ec3d19c2369b36216c6f6eb1c063e

    SHA256

    43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f

    SHA512

    9df6a8c418113a77051f6cb02745ad48c521c13cdadb85e0e37f79e29041464c8c7d7ba8c558fdd877035eb8475b6f93e7fc62b38504ddfe696a61480cabac89

  • C:\Users\Admin\AppData\Local\Temp\7zS06BA0226\libwinpthread-1.dll

    Filesize

    69KB

    MD5

    1e0d62c34ff2e649ebc5c372065732ee

    SHA1

    fcfaa36ba456159b26140a43e80fbd7e9d9af2de

    SHA256

    509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723

    SHA512

    3653f8ed8ad3476632f731a3e76c6aae97898e4bf14f70007c93e53bc443906835be29f861c4a123db5b11e0f3dd5013b2b3833469a062060825df9ee708dc61

  • C:\Users\Admin\AppData\Local\Temp\Tar2801.tmp

    Filesize

    175KB

    MD5

    dd73cead4b93366cf3465c8cd32e2796

    SHA1

    74546226dfe9ceb8184651e920d1dbfb432b314e

    SHA256

    a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

    SHA512

    ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

  • \Users\Admin\AppData\Local\Temp\7zS06BA0226\karotima_1.exe

    Filesize

    120KB

    MD5

    14b4ef6bc60c853155db7caef659ca22

    SHA1

    863559eb63b36f6c738bc5215aa90137873a6fb8

    SHA256

    30ac612a7804260d3137be17839af733f970396f20a248a13aa6a68c4b4dafa7

    SHA512

    b3c7fbb66f2f577284ad1801cc34d98d37e4e8297a4b38d4d540036c25b4a8442863e6d791fc08853c1004e4cf4d55efb2f0446e5bdda01b6c1e6d97cc9ae6fb

  • \Users\Admin\AppData\Local\Temp\7zS06BA0226\karotima_1.exe

    Filesize

    89KB

    MD5

    2f17911d8c2ca1e8b66af79ac3bc28cb

    SHA1

    b958472cfcb796fb35f40193c1e107ce91ee419b

    SHA256

    d8ca9cb7864a51ce7d962ed237100972dbc66ae9751c0384348d780d232bcad0

    SHA512

    f3f81f5ed68bb939c34153a0f72652460b8aa1bb54fcb0a4dceebab9ef2149c7c09d2143b6a5bc04823bcd9707e09852e2303622b3529de947a78f3d4078d302

  • \Users\Admin\AppData\Local\Temp\7zS06BA0226\karotima_1.exe

    Filesize

    151KB

    MD5

    a2f79d2573b70983c284aa68902341cb

    SHA1

    c193f75e3ea1dcc6a3f386ff6f0698c22c7dba27

    SHA256

    0a970bf5ffd9c3408e3c040da7dfdc4b6ada077644ee206d5a9f562a71a21e09

    SHA512

    e75628be8bb309c0c2b3afd3ce1e295a956b80620e173183cfb68e2dad1c63f71b89cf4c817cdc508f502466f2423d83564494e79750c63c48aff31168063181

  • \Users\Admin\AppData\Local\Temp\7zS06BA0226\karotima_2.exe

    Filesize

    126KB

    MD5

    1f1cebf893b222b1eae1194a04b9c687

    SHA1

    9d103b7e1abdf37d1e5e455ce38fda6763cd8104

    SHA256

    1f9a4f78db5d03c52da6581a433e8f209ed184735cb02026f72b411b5fabbf33

    SHA512

    abe46408ae427442f1e771ba1ae799da93db86c620a1baae66448d25646b3ad2d96c125cd820ae4e011d55e565aebd80be6946924f05d6d5522976cad6771fe2

  • \Users\Admin\AppData\Local\Temp\7zS06BA0226\karotima_2.exe

    Filesize

    116KB

    MD5

    973d7688908fa22b14247441bec5b53b

    SHA1

    1eeb3dbf9477c0d996329e77848844f0b54509a9

    SHA256

    f0f4a9dccc0c9051a8af08931540b8593aa54208fa34eaa68ef4176047450242

    SHA512

    a5663b4c1d77d7089f6e444f7339214f30ff455ab8ac64c251d12f480cdf8f7712be7598178a74b2b8a8338facd71d1cd5c55bd4d652db24d0bb3d0cbe0096ea

  • \Users\Admin\AppData\Local\Temp\7zS06BA0226\libcurl.dll

    Filesize

    218KB

    MD5

    d09be1f47fd6b827c81a4812b4f7296f

    SHA1

    028ae3596c0790e6d7f9f2f3c8e9591527d267f7

    SHA256

    0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e

    SHA512

    857f44a1383c29208509b8f1164b6438d750d5bb4419add7626986333433e67a0d1211ec240ce9472f30a1f32b16c8097aceba4b2255641b3d8928f94237f595

  • \Users\Admin\AppData\Local\Temp\7zS06BA0226\libgcc_s_dw2-1.dll

    Filesize

    113KB

    MD5

    9aec524b616618b0d3d00b27b6f51da1

    SHA1

    64264300801a353db324d11738ffed876550e1d3

    SHA256

    59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e

    SHA512

    0648a26940e8f4aad73b05ad53e43316dd688e5d55e293cce88267b2b8744412be2e0d507dadad830776bf715bcd819f00f5d1f7ac1c5f1c4f682fb7457a20d0

  • \Users\Admin\AppData\Local\Temp\7zS06BA0226\libstdc++-6.dll

    Filesize

    647KB

    MD5

    5e279950775baae5fea04d2cc4526bcc

    SHA1

    8aef1e10031c3629512c43dd8b0b5d9060878453

    SHA256

    97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87

    SHA512

    666325e9ed71da4955058aea31b91e2e848be43211e511865f393b7f537c208c6b31c182f7d728c2704e9fc87e7d1be3f98f5fee4d34f11c56764e1c599afd02

  • \Users\Admin\AppData\Local\Temp\7zS06BA0226\setup_install.exe

    Filesize

    287KB

    MD5

    117e1a64b0ccd2b5a68a3b5e65fb901b

    SHA1

    11b8fdef6a1f49d132d39bbad6fe9c6bbd7deb5a

    SHA256

    72a4d83686943a9436736bf25a88af512e83b6a8c984e83a64d18cac674e7e24

    SHA512

    035d7f48480198f16df3f2cb8d65f16d0df0bbf7f3a3b57f5dd5a485569e4f52446e993db264ab64053c44a6a1be8683287ae69166ff822a6410e345247ebdc7

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

    Filesize

    740KB

    MD5

    2eaea22e3b2aaefa790ca988d89e2c40

    SHA1

    d657061db2d0b4143404040df9abdbc71dc36a85

    SHA256

    8f3caaf35a85b354c5d60b9792b14a77b9abb8ae5dd0af8b150d6ecefa59f97e

    SHA512

    ae0351005a5bb15aa472c05a3d3d1ab879b30d24e8d19dc7a7ccc4f004e85c9b789d4cd93e8a350a0d4dd16f41973e2ed57e54ef233c4e91799a5cf95d7a4c66

  • memory/1064-125-0x0000000002B00000-0x0000000002B15000-memory.dmp

    Filesize

    84KB

  • memory/2412-83-0x0000000000400000-0x000000000089C000-memory.dmp

    Filesize

    4.6MB

  • memory/2412-82-0x0000000000250000-0x0000000000259000-memory.dmp

    Filesize

    36KB

  • memory/2412-81-0x0000000000950000-0x0000000000A50000-memory.dmp

    Filesize

    1024KB

  • memory/2412-126-0x0000000000400000-0x000000000089C000-memory.dmp

    Filesize

    4.6MB

  • memory/2468-63-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2468-64-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2468-60-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2468-59-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2468-58-0x000000006B280000-0x000000006B2A6000-memory.dmp

    Filesize

    152KB

  • memory/2468-57-0x000000006B280000-0x000000006B2A6000-memory.dmp

    Filesize

    152KB

  • memory/2468-52-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2468-51-0x0000000064940000-0x0000000064959000-memory.dmp

    Filesize

    100KB

  • memory/2468-49-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2468-48-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2468-46-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2468-45-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2468-38-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2468-62-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2468-65-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2468-61-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2468-55-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2468-53-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2468-50-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2468-47-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2468-36-0x000000006B280000-0x000000006B2A6000-memory.dmp

    Filesize

    152KB

  • memory/2468-28-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2468-134-0x000000006FE40000-0x000000006FFC6000-memory.dmp

    Filesize

    1.5MB

  • memory/2468-129-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2468-130-0x0000000064940000-0x0000000064959000-memory.dmp

    Filesize

    100KB

  • memory/2468-131-0x000000006B280000-0x000000006B2A6000-memory.dmp

    Filesize

    152KB

  • memory/2468-132-0x000000006B440000-0x000000006B4CF000-memory.dmp

    Filesize

    572KB

  • memory/2468-133-0x000000006EB40000-0x000000006EB63000-memory.dmp

    Filesize

    140KB

  • memory/2912-25-0x0000000003140000-0x000000000325E000-memory.dmp

    Filesize

    1.1MB