Analysis

  • max time kernel
    25s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 02:05

General

  • Target

    46dbef87e434aa47f02882058608c00d4623b640f1e6f87062c5bea9685bfebe.exe

  • Size

    2.5MB

  • MD5

    15b231fb1babac13ffeef8489e235fc9

  • SHA1

    b3da12bdd920b11328c1d7855d8b982e52e5068a

  • SHA256

    46dbef87e434aa47f02882058608c00d4623b640f1e6f87062c5bea9685bfebe

  • SHA512

    5a747fcf9220e9807da08b1075e05b93b74f026d845e15d2ae7c40e31429f0b1a9cca7dcda511ac89329242f06f55cd0ec232f5ccbca16f57f6b5e0ac5303961

  • SSDEEP

    49152:h1OsJPHVmVhYwiLtKkKyW4nFU0I+NP/f7I3lMOaYjdxvL0HF:h1OOHVl71RnFXINxvI

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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\46dbef87e434aa47f02882058608c00d4623b640f1e6f87062c5bea9685bfebe.exe
    "C:\Users\Admin\AppData\Local\Temp\46dbef87e434aa47f02882058608c00d4623b640f1e6f87062c5bea9685bfebe.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:948
    • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\bxSMeW7BaTsWuvv.exe
      .\bxSMeW7BaTsWuvv.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 AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1484
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\UzDrC2CoAjzKq9.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:516
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\UzDrC2CoAjzKq9.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:896

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\GoSave\UzDrC2CoAjzKq9.dat
    Filesize

    7KB

    MD5

    a54a272dc9a336b8b663fa42e41b8ab7

    SHA1

    a53a80526907a81afeef90037b5f02f8cd3c9369

    SHA256

    b0be7c96b103b005f0ad9536bad9a6244ea6aa24c103de9336b84a383620f252

    SHA512

    d8edf557df9a8e3aab9950944c87586dc89f737999b0c11e21cb21506568254f64e93871baac4e766f3f97b3ce3b04a552734fe51017709f8bca06000b85517f

  • C:\Program Files (x86)\GoSave\UzDrC2CoAjzKq9.x64.dll
    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\[email protected]\bootstrap.js
    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\[email protected]\chrome.manifest
    Filesize

    35B

    MD5

    04a764e5f88d895d7bbdecddcb16ca30

    SHA1

    3b73902c6beada40e426d1165337d062b900836e

    SHA256

    8aae31b00a993a7db3fed89123283844fa3dd16d3741ba38b42d6b3e255efd94

    SHA512

    4265b6362b648b230e44e506df2335ccdb6d7ffc8937be338e3d5bfc0cf032cba7b61546a59bd4ceef73ef2434cab144e30878f063ed2fa573e0d14cc08b204a

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\[email protected]\content\bg.js
    Filesize

    8KB

    MD5

    be7e7e2e5d430680b52703b8deae7e65

    SHA1

    9d78520bd9b3cc9a874b29a278707074812f5478

    SHA256

    c2275c96e8a7a7f3081b1088817653c2e217eefbf0871832730b218220607553

    SHA512

    57e29c9eb0208ced65f699ab6006071015f5bc9bc99ce53a9eac1b4d92550ec1eb3acdba8e41260bbca67d4f5c97ac8b3ecdac1495600ad0c3574616c47b52d7

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\[email protected]\install.rdf
    Filesize

    593B

    MD5

    d431ba88b05d8dd288c47e4edf79f9d3

    SHA1

    ef9f0765d40765911faa1e08678fe8096ac56ffd

    SHA256

    e33066d93b7ff337ae5e7d5f6e8e948bf67eaf91acf4503a5c134ac78c7c1a26

    SHA512

    900655a7fcc7fd1ff07a692f4aa32515281d4db30bdf188926a904e095e918ab88cc2d5346204d8ae5a8357fa2a85fed1f1e2eabc76fc556f3284d8cca683616

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\UzDrC2CoAjzKq9.dll
    Filesize

    747KB

    MD5

    d949da968ea04ac3a7ddf0e300bb32be

    SHA1

    581d7d799c538b8e9e578cf57c420fb802d5a201

    SHA256

    5c4756451acf8622efa75639f9131ca8215c165e2ef21cc1ab7f8fee77db462b

    SHA512

    fd00e332af52646425f0d4032bb1bbfc85a44ff274bcf212f1264a29be546db4c1ceab7da32c70248a6baa2c55d2dff47dcb2ac441c783a1d9d1260c4685eb7e

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\UzDrC2CoAjzKq9.tlb
    Filesize

    3KB

    MD5

    5b503f1b4056c3d4fbf2d03f88e1adfe

    SHA1

    c8d659ea27bf0ca0bbfd46865d5796589bf9ef68

    SHA256

    231ef0fef77ab6c7fea053f64a9ce7f9e21646b868bfe391962262fc15c9bb6c

    SHA512

    229207201368d9674258389df19132070390f913aa5cc21b7567c515be5f5e0f07cdaa460d497ae355f27f00f7fc75538783d8890f6c9c0e861a7ecb8f520bdb

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\UzDrC2CoAjzKq9.x64.dll
    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\bxSMeW7BaTsWuvv.dat
    Filesize

    7KB

    MD5

    a54a272dc9a336b8b663fa42e41b8ab7

    SHA1

    a53a80526907a81afeef90037b5f02f8cd3c9369

    SHA256

    b0be7c96b103b005f0ad9536bad9a6244ea6aa24c103de9336b84a383620f252

    SHA512

    d8edf557df9a8e3aab9950944c87586dc89f737999b0c11e21cb21506568254f64e93871baac4e766f3f97b3ce3b04a552734fe51017709f8bca06000b85517f

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\bxSMeW7BaTsWuvv.exe
    Filesize

    760KB

    MD5

    dcd148f6f3af3e3b0935c4fcc9f41811

    SHA1

    ee9bdbc7c568c7832d90b85921ab20030b6734cd

    SHA256

    f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4

    SHA512

    34be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\bxSMeW7BaTsWuvv.exe
    Filesize

    760KB

    MD5

    dcd148f6f3af3e3b0935c4fcc9f41811

    SHA1

    ee9bdbc7c568c7832d90b85921ab20030b6734cd

    SHA256

    f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4

    SHA512

    34be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\imejhncfobhdcjkckleblgaofahlokll\background.html
    Filesize

    147B

    MD5

    f40a2e591aa4de22cc88681d1f946496

    SHA1

    481873d1d16377424bf409c5495a316f87e38ae4

    SHA256

    392627f8dff33c8a612f26a2b7a5eb05d529f036f0f186634d269ad382883032

    SHA512

    3c4bd454253265bec975e8dd4622f419789888ca2d28ca8f5395b336ca53ba074dc2225ecf16c63b8b6f5ceb9fea3e78d322282f122d3c448d699d01f80c6a58

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\imejhncfobhdcjkckleblgaofahlokll\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\imejhncfobhdcjkckleblgaofahlokll\j0XavAdT9D.js
    Filesize

    6KB

    MD5

    c1f2c46713f0976c634d0de1f13b2499

    SHA1

    ced7742e14ac92983ca1bfdcc406bfa55b678db7

    SHA256

    c24d3a392884b06f90ea9daeda4beb42e9388abef31ed56340ca1c9b119731ea

    SHA512

    6c05d02f2dccf1d20860e06e1c3771bd9388a538d295433c1db59c033923d3b025b59646c2a5103b8cd23ae454c5e9ad314cf6e0b747152871f2f1f08f7afef0

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\imejhncfobhdcjkckleblgaofahlokll\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zS3A63.tmp\imejhncfobhdcjkckleblgaofahlokll\manifest.json
    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • \Program Files (x86)\GoSave\UzDrC2CoAjzKq9.dll
    Filesize

    747KB

    MD5

    d949da968ea04ac3a7ddf0e300bb32be

    SHA1

    581d7d799c538b8e9e578cf57c420fb802d5a201

    SHA256

    5c4756451acf8622efa75639f9131ca8215c165e2ef21cc1ab7f8fee77db462b

    SHA512

    fd00e332af52646425f0d4032bb1bbfc85a44ff274bcf212f1264a29be546db4c1ceab7da32c70248a6baa2c55d2dff47dcb2ac441c783a1d9d1260c4685eb7e

  • \Program Files (x86)\GoSave\UzDrC2CoAjzKq9.x64.dll
    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • \Program Files (x86)\GoSave\UzDrC2CoAjzKq9.x64.dll
    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • \Users\Admin\AppData\Local\Temp\7zS3A63.tmp\bxSMeW7BaTsWuvv.exe
    Filesize

    760KB

    MD5

    dcd148f6f3af3e3b0935c4fcc9f41811

    SHA1

    ee9bdbc7c568c7832d90b85921ab20030b6734cd

    SHA256

    f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4

    SHA512

    34be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886

  • memory/516-73-0x0000000000000000-mapping.dmp
  • memory/896-77-0x0000000000000000-mapping.dmp
  • memory/896-78-0x000007FEFB741000-0x000007FEFB743000-memory.dmp
    Filesize

    8KB

  • memory/948-54-0x0000000075DA1000-0x0000000075DA3000-memory.dmp
    Filesize

    8KB

  • memory/1484-56-0x0000000000000000-mapping.dmp