Analysis

  • max time kernel
    82s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 15:31

General

  • Target

    efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exe

  • Size

    2.1MB

  • MD5

    8999cb74343edefdc6f51d9abf9f6a31

  • SHA1

    8f445366a91a979cac7aab45b93866d3aba35c42

  • SHA256

    efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e

  • SHA512

    e6ddd572924fc720fd3c14b46432bf2daeb7581e433fdc46d9bd02881078623102b4eac30a08c3c046a1d69974c3c3ba541f6e5b94122ed78a120dd60d3e473d

  • SSDEEP

    49152:h1OsaAxPqbaJ0CqWfTAeP20icuFMDoiXrBSdCIlE05XwjXr3X:h1O9Axib7CqWfTAeP2vaDhtSdp4

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 Program Files directory 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exe
    "C:\Users\Admin\AppData\Local\Temp\efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1524
    • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\ej47FdSYCE0ysdk.exe
      .\ej47FdSYCE0ysdk.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:912
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:1908

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.dat

    Filesize

    6KB

    MD5

    a1495739f9e2c23583e941264354fb55

    SHA1

    3e61cf9d385712ca862d82a6ae483ac0b2ebb22b

    SHA256

    93c91c05d0207bceb58fa43e612bad3767c88d316ee9edc66d3eb02e1ffb5734

    SHA512

    6c205306c3c52170faa7dc295995195d8ae49e1ab32fb64c89478887cea54ee5d917bd9cb98db3ccdb6d6bf23eaae74a04ac4942cead2d7e0c73a566a9941daa

  • C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll

    Filesize

    697KB

    MD5

    09b1827343abfccf344d2b04268c1b87

    SHA1

    1c60bbd56c0b33be582c3dac053e9b28b94d588b

    SHA256

    a9181af1ead8778d27a22e862145aa5e1dd7ac40cf6e994f8c6b1ae7b58f302a

    SHA512

    cb4ac4ff93405372a7ab65e1910d58f88a30c9b4d62c06b84fd3fd5f51ca10459c351efcc394418e27aafa27e87bd1a359d20006804da8f171b37cf2fd26f965

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

    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

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

    Filesize

    35B

    MD5

    438ebe6e2f2f59a0265be6e05eb48902

    SHA1

    d18329b8c09dfb0252f53f7f8a786c00469e27e2

    SHA256

    0687d1852d3f9f35b8762debc649ead205542cbfba7a1a034f0d05a62a30dea7

    SHA512

    c3b0bc7fa980fb87e2e0b35b8acce6ba26549604f00a0bd0ef9ffae797a54fa26c7e6ce9ab5f397faa73519844603f3e49cfa015f1d8feacd99ee11f4674a4aa

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

    Filesize

    7KB

    MD5

    e6a26a005fc77b7bf05bcd1a7be04308

    SHA1

    23097ae4fbfe068c4c86e6e8968fe3d3fd925b19

    SHA256

    b9e3c13902501dc17d1c3ac247ef884643e454a641725f4cd9f5189649eb335f

    SHA512

    30aa93116ef41a53f6266b862df07aef2de3dc7e8e48b7b8f7b8dfc86f6d2ee935febb3d0377e1505f178c4f0579714c7c4f4032f460455b196e90fcf136f930

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

    Filesize

    594B

    MD5

    2b857013840563d10e2e6a791d6290d5

    SHA1

    3bb24ae4bf5376c73c3dabd900d0c2535d86c83c

    SHA256

    0402620180c9bb8ce8241381c87fd4d04c49ce024ad601ff6133ec6589ec5069

    SHA512

    fab8efa9b87305e88c5634173a5fcc8ae459f3d970f072075720fb25a5bb84029c9765cac0a7d80659257fc3345f2fa75d110a82faec424b018b232a2ca2a7ec

  • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\ej47FdSYCE0ysdk.dat

    Filesize

    6KB

    MD5

    a1495739f9e2c23583e941264354fb55

    SHA1

    3e61cf9d385712ca862d82a6ae483ac0b2ebb22b

    SHA256

    93c91c05d0207bceb58fa43e612bad3767c88d316ee9edc66d3eb02e1ffb5734

    SHA512

    6c205306c3c52170faa7dc295995195d8ae49e1ab32fb64c89478887cea54ee5d917bd9cb98db3ccdb6d6bf23eaae74a04ac4942cead2d7e0c73a566a9941daa

  • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\ej47FdSYCE0ysdk.exe

    Filesize

    634KB

    MD5

    39bca0c0295e43a1d256f93c4bc41a7d

    SHA1

    163629228f4ad397c594ae4acc1162d2990f7d5f

    SHA256

    2e46c5d7d549885057d92525f35b60a19cb428600a397245e5f6ce0238b5e1cd

    SHA512

    e16570bea11aa8680f4e547f099e8c099c1654e6a3060fca871a42dffb9e256811f5aa9bba9f00dc14b218ad32b56c916987b3a270893540a0992f832bcf2a4d

  • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\ej47FdSYCE0ysdk.exe

    Filesize

    634KB

    MD5

    39bca0c0295e43a1d256f93c4bc41a7d

    SHA1

    163629228f4ad397c594ae4acc1162d2990f7d5f

    SHA256

    2e46c5d7d549885057d92525f35b60a19cb428600a397245e5f6ce0238b5e1cd

    SHA512

    e16570bea11aa8680f4e547f099e8c099c1654e6a3060fca871a42dffb9e256811f5aa9bba9f00dc14b218ad32b56c916987b3a270893540a0992f832bcf2a4d

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

    Filesize

    140B

    MD5

    7fea1a097b784f4ec45f03d42de04ad1

    SHA1

    142f44da22123d7f7480a843ca380dafed13efb3

    SHA256

    83db4ebacbf8fbf2f7a452775b73961f3bc60e2fdfaa8c7416aef69c58d8adeb

    SHA512

    41c22dbe49ec3b61ae6ed5491eee5171d4d47b4dc010e73980c8cfa616a81afda7f4de0f24b5c12cafacb017e68db213e62d7158fd9be895e655ea1dc866bf9e

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

    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\oflbekffmpabolblkemagffdchlodmhf\lsdb.js

    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\oflbekffmpabolblkemagffdchlodmhf\manifest.json

    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\oflbekffmpabolblkemagffdchlodmhf\xQ1.js

    Filesize

    5KB

    MD5

    cbe90d55fbc3ca18445d85c74b6cafa1

    SHA1

    4ccc5adf57180f80b5837ce5451cf03fc13105fe

    SHA256

    eadbfd90f2b3a0ed811574e774de8738f1b00f87e1309c1e25b879b66e01945a

    SHA512

    a16943a116a9d7c76e16957539bb126453510a058cafa651ed00905b8528f4246494909f2ee6a0c1815b25f706cc554dbd870b8c8f6437c4490b1994ea44f7c5

  • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\pZw4TUjA2pHih8.dll

    Filesize

    617KB

    MD5

    840d829dddf8d035522e4f3547f72799

    SHA1

    1f669f414a0935ef806bdb8a93d2755f00104519

    SHA256

    a8405b5162305f768093c227ad9ece6ddd74f6dfe17fd0878a4e64e61e125d42

    SHA512

    e447ed7f6bbaacd8523984bae1584f39c4c38e93abd43d4e25c8056143d3228a3993d7aab8fd92d2e6baf0157a1d8638a1254eed037f3eb64250b6ca586913c7

  • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\pZw4TUjA2pHih8.tlb

    Filesize

    3KB

    MD5

    6fb4d3c40d62e1e378e92280f2cd93a4

    SHA1

    cdcd20abfab5c8f24b0bf2e24b43930a33b4d147

    SHA256

    ffe3ee2134494c6e175cf01e0fc518402384a1f79a46a37f441e6e3c74183983

    SHA512

    960ecc2ce3d9ee0a828780d0770a4966211a55c8587e36b460c3c5d2bf7a338bd538c13bb07e93b647b5c1056fc0c14f90cf59a4b13508350922cda38ab6538d

  • C:\Users\Admin\AppData\Local\Temp\7zSEABD.tmp\pZw4TUjA2pHih8.x64.dll

    Filesize

    697KB

    MD5

    09b1827343abfccf344d2b04268c1b87

    SHA1

    1c60bbd56c0b33be582c3dac053e9b28b94d588b

    SHA256

    a9181af1ead8778d27a22e862145aa5e1dd7ac40cf6e994f8c6b1ae7b58f302a

    SHA512

    cb4ac4ff93405372a7ab65e1910d58f88a30c9b4d62c06b84fd3fd5f51ca10459c351efcc394418e27aafa27e87bd1a359d20006804da8f171b37cf2fd26f965

  • \Program Files (x86)\GoSave\pZw4TUjA2pHih8.dll

    Filesize

    617KB

    MD5

    840d829dddf8d035522e4f3547f72799

    SHA1

    1f669f414a0935ef806bdb8a93d2755f00104519

    SHA256

    a8405b5162305f768093c227ad9ece6ddd74f6dfe17fd0878a4e64e61e125d42

    SHA512

    e447ed7f6bbaacd8523984bae1584f39c4c38e93abd43d4e25c8056143d3228a3993d7aab8fd92d2e6baf0157a1d8638a1254eed037f3eb64250b6ca586913c7

  • \Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll

    Filesize

    697KB

    MD5

    09b1827343abfccf344d2b04268c1b87

    SHA1

    1c60bbd56c0b33be582c3dac053e9b28b94d588b

    SHA256

    a9181af1ead8778d27a22e862145aa5e1dd7ac40cf6e994f8c6b1ae7b58f302a

    SHA512

    cb4ac4ff93405372a7ab65e1910d58f88a30c9b4d62c06b84fd3fd5f51ca10459c351efcc394418e27aafa27e87bd1a359d20006804da8f171b37cf2fd26f965

  • \Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll

    Filesize

    697KB

    MD5

    09b1827343abfccf344d2b04268c1b87

    SHA1

    1c60bbd56c0b33be582c3dac053e9b28b94d588b

    SHA256

    a9181af1ead8778d27a22e862145aa5e1dd7ac40cf6e994f8c6b1ae7b58f302a

    SHA512

    cb4ac4ff93405372a7ab65e1910d58f88a30c9b4d62c06b84fd3fd5f51ca10459c351efcc394418e27aafa27e87bd1a359d20006804da8f171b37cf2fd26f965

  • \Users\Admin\AppData\Local\Temp\7zSEABD.tmp\ej47FdSYCE0ysdk.exe

    Filesize

    634KB

    MD5

    39bca0c0295e43a1d256f93c4bc41a7d

    SHA1

    163629228f4ad397c594ae4acc1162d2990f7d5f

    SHA256

    2e46c5d7d549885057d92525f35b60a19cb428600a397245e5f6ce0238b5e1cd

    SHA512

    e16570bea11aa8680f4e547f099e8c099c1654e6a3060fca871a42dffb9e256811f5aa9bba9f00dc14b218ad32b56c916987b3a270893540a0992f832bcf2a4d

  • memory/912-73-0x0000000000000000-mapping.dmp

  • memory/1524-54-0x0000000075C11000-0x0000000075C13000-memory.dmp

    Filesize

    8KB

  • memory/1908-78-0x000007FEFC1E1000-0x000007FEFC1E3000-memory.dmp

    Filesize

    8KB

  • memory/1908-77-0x0000000000000000-mapping.dmp

  • memory/2024-56-0x0000000000000000-mapping.dmp