Analysis

  • max time kernel
    42s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 05:05

General

  • Target

    6f5f3586dc9a2588b67d29c0fedc54499272a0d55c7a3c480d91de7e638b401e.exe

  • Size

    2.1MB

  • MD5

    1dbc31e157e8a783b78f534785ec0c25

  • SHA1

    6aa56c88422b45dbf7b1c11d5b9510bf68f2a202

  • SHA256

    6f5f3586dc9a2588b67d29c0fedc54499272a0d55c7a3c480d91de7e638b401e

  • SHA512

    b8a58f492e4a86cd3ac7451036bb5a61262e9ef71b6c454296b91da5bee31b1a4d446ce31089db91da9044b19a1bdc419b509164f6c8ce0abcdd0591b5967dc9

  • SSDEEP

    24576:h1OYdaOGGiAEAd/KjjBKyu73i8mxcmMMV6zs+G/pC2d1RJoTJnQqphTuS2MD3GvE:h1OsJMAd/OxfV6zZGYg1RJQnFrTc2SW

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 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.

  • Drops Chrome extension 3 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 11 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f5f3586dc9a2588b67d29c0fedc54499272a0d55c7a3c480d91de7e638b401e.exe
    "C:\Users\Admin\AppData\Local\Temp\6f5f3586dc9a2588b67d29c0fedc54499272a0d55c7a3c480d91de7e638b401e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:560
    • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\fSp9E2cZvweldbh.exe
      .\fSp9E2cZvweldbh.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSiave\Hj7FT96D1dzswj.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1500
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSiave\Hj7FT96D1dzswj.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:108

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GoSiave\Hj7FT96D1dzswj.dat

    Filesize

    6KB

    MD5

    b1ceaa501c0e4963eeeedc6cbccac23a

    SHA1

    db04a8c15aa4c7800e6e8bcda0e4995bc85056a5

    SHA256

    d86210a5e9f8e410ae278e86da98ae566b560ac5942ae11d3dca55d0fe78c36d

    SHA512

    9145bfd2e4e61a40d370d6e75f450502ea690beee3b43e8bade22f163bd279fe57dbccca9bc1b6672c2e37601c0b48ebe593dd7d67982e834113bab7365d874f

  • C:\Program Files (x86)\GoSiave\Hj7FT96D1dzswj.x64.dll

    Filesize

    702KB

    MD5

    1287246338d36f26f77735bd58d74e70

    SHA1

    aabda37cd307e50f2444c73bd656eaf2b78fc291

    SHA256

    4d1d5893df770fc7c94b33c90f87f8cc8b9d7669f4f914df9139ddb22042acc1

    SHA512

    ee4177dbd58c1327ea0334e43499e99cea642d458844b589116d147d72a6f71e063fe5dadbe262a7bca7cf0ba7ec48708e64827b513abc3e46144bcfcc6f46f1

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\Hj7FT96D1dzswj.dll

    Filesize

    619KB

    MD5

    4f328f4e17a2c81830aac4c8c3d67141

    SHA1

    063c8e33d6a263dd604d072ffd143305f6c3d4a8

    SHA256

    303917029755e7a44a6e7392c5e751e4fbcb66feaa8a5f09142efaf5a91ad2fc

    SHA512

    d387cf9ee95426717be8bac7a6cd422b8ddc2aa925723a9b25a169d9b4a0f5cb5607e2f2b8161cadb0e4333d1fda4ba24ecb838dbb49571d55a6799efce404c0

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\Hj7FT96D1dzswj.tlb

    Filesize

    3KB

    MD5

    62cb4133d9d3a46f4f1c6c0fb3688619

    SHA1

    feaaef6e2b8c41be2575d0763cc8de3e8c19478e

    SHA256

    3ddcfb4b206fc4856f5bb5c06bcc3761dde53882eea20b5dc5ddf4ee8864bea5

    SHA512

    cb30dc73d52eb502f745fe32b4055b53306f62f0847cae1275d0856608949ea62c30f40d7f252ad450909a4bd425cf0e50012400175cc42a4096cf1451d90123

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\Hj7FT96D1dzswj.x64.dll

    Filesize

    702KB

    MD5

    1287246338d36f26f77735bd58d74e70

    SHA1

    aabda37cd307e50f2444c73bd656eaf2b78fc291

    SHA256

    4d1d5893df770fc7c94b33c90f87f8cc8b9d7669f4f914df9139ddb22042acc1

    SHA512

    ee4177dbd58c1327ea0334e43499e99cea642d458844b589116d147d72a6f71e063fe5dadbe262a7bca7cf0ba7ec48708e64827b513abc3e46144bcfcc6f46f1

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\fSp9E2cZvweldbh.dat

    Filesize

    6KB

    MD5

    b1ceaa501c0e4963eeeedc6cbccac23a

    SHA1

    db04a8c15aa4c7800e6e8bcda0e4995bc85056a5

    SHA256

    d86210a5e9f8e410ae278e86da98ae566b560ac5942ae11d3dca55d0fe78c36d

    SHA512

    9145bfd2e4e61a40d370d6e75f450502ea690beee3b43e8bade22f163bd279fe57dbccca9bc1b6672c2e37601c0b48ebe593dd7d67982e834113bab7365d874f

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\fSp9E2cZvweldbh.exe

    Filesize

    623KB

    MD5

    cd6bf363f5af45a16926343310023db4

    SHA1

    e5bcbe9735e5a8d6243af1c2a4593784e8e63aa6

    SHA256

    bfa98e4e677c8bcb7348aed64d51915e3bacb05925d0234e646e2bb7cc3cdd06

    SHA512

    3ccb2c4ea143ac58d4df43751bf1c8781795b2321f3acb5d85a0249e4b43c1bf3f93c41c0c59cc2933b923069340a3f7425e9ddce1d7355e60eec843d9158ced

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\fSp9E2cZvweldbh.exe

    Filesize

    623KB

    MD5

    cd6bf363f5af45a16926343310023db4

    SHA1

    e5bcbe9735e5a8d6243af1c2a4593784e8e63aa6

    SHA256

    bfa98e4e677c8bcb7348aed64d51915e3bacb05925d0234e646e2bb7cc3cdd06

    SHA512

    3ccb2c4ea143ac58d4df43751bf1c8781795b2321f3acb5d85a0249e4b43c1bf3f93c41c0c59cc2933b923069340a3f7425e9ddce1d7355e60eec843d9158ced

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\jaemggpohklfiiagmcfifhpohppkochp\BDa7RNz.js

    Filesize

    6KB

    MD5

    9c73e2b834f224472983705e7b871905

    SHA1

    3d368d346affa647809ac2eb490700b636fdd3c4

    SHA256

    e45183df53f29b6d429d79003ae3aaf10ac166d054d4b8d92dcb7f0ec0fee61c

    SHA512

    02c85e327c4505de01453b8074505261e182ef46bc177afd01478d82acab6d12573eb99f3c7ee2090b117a9b66044c542fdce27bd11d33dcc05070f35f92076f

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\jaemggpohklfiiagmcfifhpohppkochp\background.html

    Filesize

    144B

    MD5

    b4cdedd56b55443042c6d6a4d14ca45c

    SHA1

    d7f2287bd66be34f266ecda40ce6105677931f32

    SHA256

    656000cc3789b4b02b2ece831bf03205cff587618a0e8e91fc9acbea0c523eb9

    SHA512

    0b1dacb80ecd47696e212cdbf84c898c2bc58ef86fe5401744d32c0fd08fa5e36bb780af1cb3f11a023cc1efcbba7659078b16b63cfb723f17faa645dbafa952

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\jaemggpohklfiiagmcfifhpohppkochp\content.js

    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\jaemggpohklfiiagmcfifhpohppkochp\lsdb.js

    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\jaemggpohklfiiagmcfifhpohppkochp\manifest.json

    Filesize

    499B

    MD5

    866e59ce4292605efb1956f5f322e4f5

    SHA1

    916cd9818f80b63a11a39a6456a5a9c9b8b62473

    SHA256

    e3641913f13e083faf248b9d2aa98cef4ef2b47c3f3f402b9f8d20e1fcb35d59

    SHA512

    c2704e7378fa7f09aee17e2d3707b5f9e5145bfeb92ed2165a313a4b80d0016a84539008212daafae2b61f31d58c8b0407ba9f20d9eba80e6ecafeaaa0cc0868

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\[email protected]\chrome.manifest

    Filesize

    35B

    MD5

    9b752762e3a4b031461f3365c7fe1aa3

    SHA1

    981abc7f77ffc15ee2fe8faf3f14902a09dcb3d3

    SHA256

    3a2e4f50a32a3ce60038635c77c8f4f6ef725bc288c7d33de0fb0c97a94364b7

    SHA512

    3a324c5fe971069a5e9669bda7442d4dcb5bb8882e0e8d4bce16ab084ba379307834ff741b5f57fe9725bbeed7f913c7eb42726c302a3b4807f22293845e9cac

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\[email protected]\content\bg.js

    Filesize

    8KB

    MD5

    65402370e4d030d00a93690e797d7990

    SHA1

    488a1d7bf12d8c998385284070bd7d8c113c809a

    SHA256

    7baa933e391f3eec2b6ab24805b421c4d6b293b993c12e8d3202f5396138d804

    SHA512

    9dc544740c65ea9a6e9c6dcbc2b871be7554f6e41497607b2849454bfcf4a1e81d4c7e2b974c903d2ca83fdd0105d146a7743dcd3f8dbb1a36cf066315f90bc4

  • C:\Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\[email protected]\install.rdf

    Filesize

    593B

    MD5

    c104fe2afcd3e4c87f60f839bb80088b

    SHA1

    1e051e0f161373d2f51f85fb6deb0fbdaaafcb71

    SHA256

    5f68d2d097242f2bd522cc345b876bae1ab91872f21550cb94bd2cab01ef4714

    SHA512

    24fa3a5d4943a3da945ec488709641966db58bfa5eadeddf940c3bf3ec0070e84c1e00a584942479b68627d3179fd69f163f0395aa820a800594cd0561d8f20f

  • \Program Files (x86)\GoSiave\Hj7FT96D1dzswj.dll

    Filesize

    619KB

    MD5

    4f328f4e17a2c81830aac4c8c3d67141

    SHA1

    063c8e33d6a263dd604d072ffd143305f6c3d4a8

    SHA256

    303917029755e7a44a6e7392c5e751e4fbcb66feaa8a5f09142efaf5a91ad2fc

    SHA512

    d387cf9ee95426717be8bac7a6cd422b8ddc2aa925723a9b25a169d9b4a0f5cb5607e2f2b8161cadb0e4333d1fda4ba24ecb838dbb49571d55a6799efce404c0

  • \Program Files (x86)\GoSiave\Hj7FT96D1dzswj.x64.dll

    Filesize

    702KB

    MD5

    1287246338d36f26f77735bd58d74e70

    SHA1

    aabda37cd307e50f2444c73bd656eaf2b78fc291

    SHA256

    4d1d5893df770fc7c94b33c90f87f8cc8b9d7669f4f914df9139ddb22042acc1

    SHA512

    ee4177dbd58c1327ea0334e43499e99cea642d458844b589116d147d72a6f71e063fe5dadbe262a7bca7cf0ba7ec48708e64827b513abc3e46144bcfcc6f46f1

  • \Program Files (x86)\GoSiave\Hj7FT96D1dzswj.x64.dll

    Filesize

    702KB

    MD5

    1287246338d36f26f77735bd58d74e70

    SHA1

    aabda37cd307e50f2444c73bd656eaf2b78fc291

    SHA256

    4d1d5893df770fc7c94b33c90f87f8cc8b9d7669f4f914df9139ddb22042acc1

    SHA512

    ee4177dbd58c1327ea0334e43499e99cea642d458844b589116d147d72a6f71e063fe5dadbe262a7bca7cf0ba7ec48708e64827b513abc3e46144bcfcc6f46f1

  • \Users\Admin\AppData\Local\Temp\7zSFC2B.tmp\fSp9E2cZvweldbh.exe

    Filesize

    623KB

    MD5

    cd6bf363f5af45a16926343310023db4

    SHA1

    e5bcbe9735e5a8d6243af1c2a4593784e8e63aa6

    SHA256

    bfa98e4e677c8bcb7348aed64d51915e3bacb05925d0234e646e2bb7cc3cdd06

    SHA512

    3ccb2c4ea143ac58d4df43751bf1c8781795b2321f3acb5d85a0249e4b43c1bf3f93c41c0c59cc2933b923069340a3f7425e9ddce1d7355e60eec843d9158ced

  • memory/108-78-0x000007FEFBB81000-0x000007FEFBB83000-memory.dmp

    Filesize

    8KB

  • memory/560-54-0x0000000076041000-0x0000000076043000-memory.dmp

    Filesize

    8KB