Analysis

  • max time kernel
    39s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 16:39

General

  • Target

    f9f2bd2251695de76cf3b4eae7b4489d7fe2f3f2bc9199a89cab2b0a05bdb879.exe

  • Size

    2.5MB

  • MD5

    d6b826bf9c31ce5f72cc231761fcd315

  • SHA1

    846b3fd6bf67763d9c4605e3cc847312fe7cfcca

  • SHA256

    f9f2bd2251695de76cf3b4eae7b4489d7fe2f3f2bc9199a89cab2b0a05bdb879

  • SHA512

    325f4b8cc12117a5d8a3c9e85fa6dc00d602de5caf9a18fd27cdb608d3ec9a803010017707c31d8b6dd85399aee2e10b873b2021b932e423e961ecf60eafec90

  • SSDEEP

    49152:h1OsQ+QK3xQpjajXKioFMpYphqd3ArqvFUmEaDxEAxh4UR9TEd:h1OWQCjbKioVg3ArKh40U

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\f9f2bd2251695de76cf3b4eae7b4489d7fe2f3f2bc9199a89cab2b0a05bdb879.exe
    "C:\Users\Admin\AppData\Local\Temp\f9f2bd2251695de76cf3b4eae7b4489d7fe2f3f2bc9199a89cab2b0a05bdb879.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\WhwKbBbqiv2wFti.exe
      .\WhwKbBbqiv2wFti.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:1516
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\zjZS65MrLKnm80.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:768
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\zjZS65MrLKnm80.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:1572

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\zjZS65MrLKnm80.dat
    Filesize

    6KB

    MD5

    6fb56e9c31d78c1a22d95188a0a6060d

    SHA1

    e80b4354f8cb4c5537fb2f68068b7bc4fa88f5c8

    SHA256

    c51f6d749ac83d021b1c55fecc4bf24aae0538dadb8549e1b47c7b1e27188058

    SHA512

    3a7ef12a5bc053a077aa929e9f67b17ce43ceb8915e15d8535018eff99de801b0c3054eac990143319bb23e757a03b63f720c8059cc322d5976827dadedd8b84

  • C:\Program Files (x86)\GoSave\zjZS65MrLKnm80.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\WhwKbBbqiv2wFti.dat
    Filesize

    6KB

    MD5

    6fb56e9c31d78c1a22d95188a0a6060d

    SHA1

    e80b4354f8cb4c5537fb2f68068b7bc4fa88f5c8

    SHA256

    c51f6d749ac83d021b1c55fecc4bf24aae0538dadb8549e1b47c7b1e27188058

    SHA512

    3a7ef12a5bc053a077aa929e9f67b17ce43ceb8915e15d8535018eff99de801b0c3054eac990143319bb23e757a03b63f720c8059cc322d5976827dadedd8b84

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\WhwKbBbqiv2wFti.exe
    Filesize

    765KB

    MD5

    102dfa10cc29d7f1ded876dfd7274280

    SHA1

    f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

    SHA256

    67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

    SHA512

    c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\WhwKbBbqiv2wFti.exe
    Filesize

    765KB

    MD5

    102dfa10cc29d7f1ded876dfd7274280

    SHA1

    f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

    SHA256

    67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

    SHA512

    c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\abajpomkliiekaiimhchipeanjocjfok\Iq9lBgwh.js
    Filesize

    5KB

    MD5

    f100f77e7f593239da554549db7d34c0

    SHA1

    9b7e0a9ab00fbbc1b45c584f60274fb07c9f3cb6

    SHA256

    0524d717e765e867be5d581c566aeb43d19abcc69c796cb09b0ab3c354c0ac55

    SHA512

    c6e6d36f112a1bada06592749690490615d232e84e1bcb84371b25e87e004baa8416b2d63ce46c3d37b793f90ea01b92b438a509282c82436ac243b347b6e9c3

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\abajpomkliiekaiimhchipeanjocjfok\background.html
    Filesize

    145B

    MD5

    f9606b930727ca06575fc7bcefe6a537

    SHA1

    bb352575ab64e126ed14928a1bc85dd0e28bce3e

    SHA256

    ac1b4b6d5fb7f18a816c8c0329be7c37512e1f932dc0b6ea9fa8f0a8bdd398d9

    SHA512

    529eb85c653ce0b34b251ad52b608af6923a9fe36d33e8028ec0cd292d1446806f958b17cddc07f01c613f5b58ede5bcf97db79c160af2205a0af3480717d7a0

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\abajpomkliiekaiimhchipeanjocjfok\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\abajpomkliiekaiimhchipeanjocjfok\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\abajpomkliiekaiimhchipeanjocjfok\manifest.json
    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\zjZS65MrLKnm80.dll
    Filesize

    748KB

    MD5

    c4836ef373cdfa7eac3738c59ae9fb83

    SHA1

    2f019c1b3357e3be378ac804acfc98ec4f80b576

    SHA256

    5c7ba1a9e0bf346f3b4baa8e6965981b0ff412eabc879ecc531e98f268c34e3e

    SHA512

    e459aeba63802639c8e7245afc139d86e75a805e14b90318b926ff00fe384d14ac209dc76fb88319218c89fe1562c737ed4c5847cd92e698d529ba6737c2fb4d

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\zjZS65MrLKnm80.tlb
    Filesize

    3KB

    MD5

    f461159d95e1a49a534ad0320ff3984b

    SHA1

    e3363285437846f046b126adbcd8e4789aa1f486

    SHA256

    d6967480d6f6fd4b9d31fb7e38ee6f04c76c36edd2795f852ec3938d984993d6

    SHA512

    2a12587d4a69c967771d8b4ed43e857a81899e177d5ec8ddf8365eaa4e8752032fac8d25b5c3a89ae5efc82b4c6dfd4ba2d26e998b3ad95cc8fdc6ef0c7416ed

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\zjZS65MrLKnm80.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\[email protected]\bootstrap.js
    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\[email protected]\chrome.manifest
    Filesize

    35B

    MD5

    a1a58527c056659456beb32661e6ebe1

    SHA1

    ed0104053103eb1df6f885ed15bf12d4393e9a41

    SHA256

    619b4f6c80c54fd2a582ef33f74c28b835a3c16d6bff7dcb1c94b6f1a82e7672

    SHA512

    05ce2c88e41b5ba91967820379f4e581a05472f80ff2fc2a4836a033fd0a06236fdd3cfb97bfe75a83391939b16baa9f9298ebfaec41a02040c7d447f2937af2

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\[email protected]\content\bg.js
    Filesize

    7KB

    MD5

    05c8237200bd4c57a773846f9acc4d70

    SHA1

    8a4b42a51f2eca504ff2e81d806bddab70fa5fcf

    SHA256

    96ed67a5ca69056e357ef342d8ac5108b6821ad4125179ba9747b5fd6d499c05

    SHA512

    cd44cf0536a0771a4cafcaf613ff866716659f88576c0e25ba6b3b9022de188265ea54c76b5a6fe7dc824f347e2d42d736138454dcdf7f553e49997f79355901

  • C:\Users\Admin\AppData\Local\Temp\7zS79E2.tmp\[email protected]\install.rdf
    Filesize

    597B

    MD5

    da3fc4a85addc820bdda7c2f7d9f2002

    SHA1

    327b116219bb88348aaba6f0c48b1468f80e46c2

    SHA256

    7e3b807250e3fda39f4f4a9b6dfce61676826103cd6aae76f74117fd3e9d090f

    SHA512

    05afd75b0974e38573630b31840ea75e6de5f6fba094efec350fb91ab4f71b3c690c80b2c4ebd9572deccb4b221df76de4dd17b56827234ef306743723d5fde5

  • \Program Files (x86)\GoSave\zjZS65MrLKnm80.dll
    Filesize

    748KB

    MD5

    c4836ef373cdfa7eac3738c59ae9fb83

    SHA1

    2f019c1b3357e3be378ac804acfc98ec4f80b576

    SHA256

    5c7ba1a9e0bf346f3b4baa8e6965981b0ff412eabc879ecc531e98f268c34e3e

    SHA512

    e459aeba63802639c8e7245afc139d86e75a805e14b90318b926ff00fe384d14ac209dc76fb88319218c89fe1562c737ed4c5847cd92e698d529ba6737c2fb4d

  • \Program Files (x86)\GoSave\zjZS65MrLKnm80.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • \Program Files (x86)\GoSave\zjZS65MrLKnm80.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • \Users\Admin\AppData\Local\Temp\7zS79E2.tmp\WhwKbBbqiv2wFti.exe
    Filesize

    765KB

    MD5

    102dfa10cc29d7f1ded876dfd7274280

    SHA1

    f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

    SHA256

    67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

    SHA512

    c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

  • memory/768-73-0x0000000000000000-mapping.dmp
  • memory/1516-56-0x0000000000000000-mapping.dmp
  • memory/1572-77-0x0000000000000000-mapping.dmp
  • memory/1572-78-0x000007FEFBAB1000-0x000007FEFBAB3000-memory.dmp
    Filesize

    8KB

  • memory/2020-54-0x0000000075451000-0x0000000075453000-memory.dmp
    Filesize

    8KB