Analysis

  • max time kernel
    117s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2023 22:38

General

  • Target

    40db340467a18d6d18be879487871a61.exe

  • Size

    313KB

  • MD5

    40db340467a18d6d18be879487871a61

  • SHA1

    dac000f58eeb379c0885a0ca15588b19631e4f50

  • SHA256

    41ccc626af243568051e627af617517468c45c71c21b5f423449703e60b8619c

  • SHA512

    8575ed0012807a3d9f987891e6a09ce1583a29741a375e6c900403b557dd584c8ef2a3cd5af70e97d88efd83c13b155b89cc928b17fb737f43219645aec07f60

  • SSDEEP

    6144:91OgDPdkBAFZWjadD4sEamIGauKQLgAuDZ9Y0RXDH/K+lTUP:91OgLdahPaHQLFwZTDHJW

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\40db340467a18d6d18be879487871a61.exe
    "C:\Users\Admin\AppData\Local\Temp\40db340467a18d6d18be879487871a61.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2664
    • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\setup.exe
      .\setup.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\wxDfast\uninstall.exe

    Filesize

    46KB

    MD5

    2628f4240552cc3b2ba04ee51078ae0c

    SHA1

    5b0cca662149240d1fd4354beac1338e97e334ea

    SHA256

    03c965d0bd9827a978ef4080139533573aa800c9803599c0ce91da48506ad8f6

    SHA512

    6ecfcc97126373e82f1edab47020979d7706fc2be39ca792e8f30595133cd762cd4a65a246bee9180713e40e61efa373ecfb5eb72501ee18b38f13e32e61793b

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\[email protected]\chrome.manifest

    Filesize

    114B

    MD5

    b8857a39a20d1101ad835a9b0b433288

    SHA1

    57c27bd1a162935b2dede9a9d7e3c9d0efc549aa

    SHA256

    e6e146479140325d7ba1e10d40b56cad9e72e032479200f1c47ff4b2521db535

    SHA512

    15fb2a589e0fa1248b78584bd2914a7cf2b74d5edf097be5f58dd1c1960f985abfb85fe1e5e16241e212d2500f28674e1a860fa6e3b619d37609ff6fc7c2d210

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\[email protected]\content\indexeddb.js

    Filesize

    1KB

    MD5

    804dc8c72de966a1d03cd9a22777e800

    SHA1

    29857f02399f712208d0ff828948ec9b6d05dba8

    SHA256

    ad9c2121af94aab9480a1615eb90464d884d436526b9cc8e3411a6058c7224c3

    SHA512

    91f8d9d77fa0d8be243e5ce3204ec1250648f0218089b09c85e989ddb7391404482a6d50635cbd57365d9b7e86ce1bf8ff23cd06a449cb63f11cb3479d2d5b56

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\[email protected]\content\jquery.js

    Filesize

    91KB

    MD5

    4bab8348a52d17428f684ad1ec3a427e

    SHA1

    56c912a8c8561070aee7b9808c5f3b2abec40063

    SHA256

    3739b485ac39b157caa066b883e4d9d3f74c50beff0b86cd8a24ce407b179a23

    SHA512

    a693069c66d8316d73a3c01ed9e6a4553c9b92d98b294f0e170cc9f9f5502c814255f5f92b93aeb07e0d6fe4613f9a1d511e1bfd965634f04e6cf18f191a7480

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\[email protected]\content\jsext.js

    Filesize

    6KB

    MD5

    06d78b642df48da6c611761d8b616136

    SHA1

    48ba92c2974779909047b2f1887b5d66e9c9325d

    SHA256

    5c17c18c96981130c96c24a87114b90676efea7635cbd2cfc6a07a33097445dd

    SHA512

    b6ed05b8686699cd1f5e38a76c86638e562e064fd36c3905ba757b08c4a46bde30fc23c5e20201a95d7af00ce9985d23c61652542f08c8ccee1751f0fcae072d

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\[email protected]\content\lsdb.js

    Filesize

    1KB

    MD5

    e39261215fb1c10ffb236e73a3d030d0

    SHA1

    9dd7bce9fbebdbfc9788020d51da5f637520a3e7

    SHA256

    6ee2c0672e12f09046d5975d2f372e2a4d7c35152c75928eccd81edf77442e9e

    SHA512

    20a8d4b60aa7321fc7ad95faab0e85ddd860dfacde4586e0c273930d975f5355cc3e916ee7e3e12271f5272212b51c2f15421011d1bf54fc1e8ed428e8c1cba6

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\[email protected]\content\prfdb.js

    Filesize

    1KB

    MD5

    a39f1a82ed0db74dee0c7bc4b7f80e15

    SHA1

    4ed5a458e3bc43a8b82a05e5ac5566d81920e614

    SHA256

    160ae8edb3aabbe96a2a2067f9242b5cb7655867ec056798881368959890eab3

    SHA512

    cbdbf7beb778ac4593240dfb7dc821a2d12876a61c8a6e67290f157171433fb29c95056dbac5c110334fbc7bcf73763e84ed37fc349fcfd97457b610228cb278

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\[email protected]\content\sqlite.js

    Filesize

    1KB

    MD5

    ead3485db2ed817389304084e463eaea

    SHA1

    53051a6e0cb6ac4f9b21392f3757145c6214be88

    SHA256

    2bd2dae86eca63b36f85a6120e6730036c64d5f4b2a74e52332644d7f0c45965

    SHA512

    f6f8a5052552525602ab325d3ce03686a04ab9a2e03cc04337afccb1e1528c4dd66fba91fc2d12389b84d39184408727d73c5b65a51f33c1127278d1f7ee7cad

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\[email protected]\content\wx.xul

    Filesize

    228B

    MD5

    c36104441feb5a0b2ab443c953ddacc3

    SHA1

    ccd306c9171c7bb7354993281d4303eb7d1dace7

    SHA256

    99fa570d5008f4f9ab020e4b80bbfd2ff1f079e475e83269b44a49b0779f3f34

    SHA512

    72c73d1076605784fe33ce5950857f068352357f4697a083f7de9a5fdfeca4cb383af891a504e12e841cd88961ea0c0cb03d865c3d7ac4a897b38440c3ee3e8c

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\[email protected]\install.rdf

    Filesize

    677B

    MD5

    7a682996274bcd9769bb9d56906bfb00

    SHA1

    519d1a03d39b5833d5b756d7bb54049eb62c11fd

    SHA256

    12020cebc53574fbf3ca86c9c73863a3e6987d72675c050a1ca7a0aebc012b69

    SHA512

    e608f2d3e36c50fb66fca206cc2f81cabe99e82c48bc7e936945c8242fc833222e96ed0afeaf2294766d8a34d96850d53ab015329a37dff8e1ee014b9f86438f

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\background.html

    Filesize

    5KB

    MD5

    74fbcc665f4b5056e177c411994b26fa

    SHA1

    78f7a4b5c72eb4fa52dbaf374ee4e516c56bd1b8

    SHA256

    38f7eed1804c5a9fcd826f76ec9786ff4bf477eacb9ee93785648220ec9a3fb9

    SHA512

    a2534e1f48f95835624d357f43daca9fb2abcd09bde2f69d88fec5f2c27f1428a40ec2f467636356d3e40e14a57b6e740a324025a06e7ff7a28db8c527ea3d5e

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\bhoclass.dll

    Filesize

    137KB

    MD5

    ac13c733379328f86568f6e514c2f7f8

    SHA1

    338901240fedcef4e3892fd4c723c89154f4de05

    SHA256

    7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

    SHA512

    35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\content.js

    Filesize

    386B

    MD5

    6698c2cb7bdd929ec1019627aa11e36e

    SHA1

    9e3435584b882492c7c65c80236eba0014fbc48c

    SHA256

    00d07bcf6d43c4c2d134e014321c6f65fa8eb6141a9dfe7e31fe2a5807fdeaa8

    SHA512

    9e067e8e5dff395e901ed5c55988eef16e0ea3739fd238d218ab6f69a75bc3d0c53e2d1dce46508524a63cdb2d403a1f882f5978996bcbd4f4a41adc4e0aa1be

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\fildoiepmckiekpdaimnanlhlbhjiekk.crx

    Filesize

    37KB

    MD5

    59fa7e0e774c04a31c16d1d55fb9987e

    SHA1

    d22af56e09b8ffcccd85e4c619ee32d7d10f18e5

    SHA256

    ad5f6c4acd15a9dd2306aba75c422e7b4370f00ac3e815c8ded697b2cb8dfa9c

    SHA512

    88ad9549f7472521a61c4c72921b45da5703202e0f4abecc846eb8539501aa07930c28a87da52495171969ead88c1a8e49296c77572eda99c8075d028ce22f63

  • C:\Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\settings.ini

    Filesize

    599B

    MD5

    0789d272b31dd6d1c0f5513eafb3d927

    SHA1

    cef1d81f087b67f7f8c4606cfe23363434432aa4

    SHA256

    18390d4b46fc5940bc88306454b2e3e1910375e8a5d93b77fb6862a083c899a2

    SHA512

    f1b3c66aec68116df0b985c0a776e40655f6ef3f053f4f03160ae29195f9fe14480f836e16d654306a07260b642c3725045332baa6644e2be48728fb8df26d15

  • \Users\Admin\AppData\Local\Temp\7zSEF3F.tmp\setup.exe

    Filesize

    61KB

    MD5

    201d2311011ffdf6c762fd46cdeb52ab

    SHA1

    65c474ca42a337745e288be0e21f43ceaafd5efe

    SHA256

    15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

    SHA512

    235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b