Analysis

  • max time kernel
    38s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 16:30

General

  • Target

    fcc78cc2759825bba27e8200fcff310fa6fd16a5d0c553f882e0905ad345c0ed.exe

  • Size

    2.5MB

  • MD5

    920d6f8ad5874219b1c10c5c90de41de

  • SHA1

    cf8d16e9cdd73fadc268b67387417c7f1ad626f7

  • SHA256

    fcc78cc2759825bba27e8200fcff310fa6fd16a5d0c553f882e0905ad345c0ed

  • SHA512

    1c2765c5ef712a55266fe12f17bced571f1785514ccaca1e217d34b2ad50643469994de8aa547560d5d603667cfc3f7b78f353fef69b3f73a171a06acf7fd28a

  • SSDEEP

    49152:h1OsUPHVmVhYwiLtKkKyW4nFU0I+NP/f7I3lMOaYjdxvL0Hm:h1ObHVl71RnFXINxvX

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\fcc78cc2759825bba27e8200fcff310fa6fd16a5d0c553f882e0905ad345c0ed.exe
    "C:\Users\Admin\AppData\Local\Temp\fcc78cc2759825bba27e8200fcff310fa6fd16a5d0c553f882e0905ad345c0ed.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\MCBy7ove7Qv42vb.exe
      .\MCBy7ove7Qv42vb.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:1092
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\YoutubeAdBlocke\hF2YLtva3diUju.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1800
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\YoutubeAdBlocke\hF2YLtva3diUju.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:1100

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)\YoutubeAdBlocke\hF2YLtva3diUju.dat
    Filesize

    6KB

    MD5

    703683daeee93bc6bb21d8dd225647d4

    SHA1

    2bd3a61161db0ecba768ab6079e84bb991d1d26e

    SHA256

    1706e86a96ad36986c4c64f5ae50f10118a03f777e3e5bee8bfa584aa0943402

    SHA512

    ffff2c431e81cfbddfda1c344b41b72ccd001e8408bf81c7c74ca5de9cedc03fd8a14bf022f1e7e8dd574efa5b6599d799e2fb4c7ca60add696a6d705e5a7025

  • C:\Program Files (x86)\YoutubeAdBlocke\hF2YLtva3diUju.x64.dll
    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\MCBy7ove7Qv42vb.dat
    Filesize

    6KB

    MD5

    703683daeee93bc6bb21d8dd225647d4

    SHA1

    2bd3a61161db0ecba768ab6079e84bb991d1d26e

    SHA256

    1706e86a96ad36986c4c64f5ae50f10118a03f777e3e5bee8bfa584aa0943402

    SHA512

    ffff2c431e81cfbddfda1c344b41b72ccd001e8408bf81c7c74ca5de9cedc03fd8a14bf022f1e7e8dd574efa5b6599d799e2fb4c7ca60add696a6d705e5a7025

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\MCBy7ove7Qv42vb.exe
    Filesize

    760KB

    MD5

    dcd148f6f3af3e3b0935c4fcc9f41811

    SHA1

    ee9bdbc7c568c7832d90b85921ab20030b6734cd

    SHA256

    f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4

    SHA512

    34be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\MCBy7ove7Qv42vb.exe
    Filesize

    760KB

    MD5

    dcd148f6f3af3e3b0935c4fcc9f41811

    SHA1

    ee9bdbc7c568c7832d90b85921ab20030b6734cd

    SHA256

    f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4

    SHA512

    34be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\fihjccogblipnfcmepolnkndckeamimm\background.html
    Filesize

    142B

    MD5

    bdb2aad26722dab0f505e0c9dffdca5e

    SHA1

    5e9ad5d79aa4ccfa6802c497e3904bdb9a70ebc4

    SHA256

    ac1fb41f50284d7e3eda364d78b39fd9832b0c685d9ed705a0f2db696f770198

    SHA512

    31c7aff99e62531c5002a8cd1ff70a771107944d63e87097afc7cac8604cf2ba45c9b386bcb379ea1caf4f6e98f18e03261301951bd8a8f0f44f38fd488f713b

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\fihjccogblipnfcmepolnkndckeamimm\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\fihjccogblipnfcmepolnkndckeamimm\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\fihjccogblipnfcmepolnkndckeamimm\manifest.json
    Filesize

    507B

    MD5

    d429395a45a9aa09e4ee9054e9196b30

    SHA1

    c5dbab4e27650b07d4d159c305d08a9d578c3a3e

    SHA256

    674fc32cde82ed69cb8595bbea9f70f69097062c39bd6a3a505227a4f4a45344

    SHA512

    4a5bc7c005e573bf0cdb89489d676fb26c5fe116d397a6cd7a1ebb2cae9605b3d1657378e17d354cb102e93c39b32fa8d2963f375af37c871452f3170356101e

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\fihjccogblipnfcmepolnkndckeamimm\tqvo1.js
    Filesize

    5KB

    MD5

    199f17bc926b6dfbc2f998025873f091

    SHA1

    69d7d5667df4f8dedc8fddbbff22e006a6e7cef1

    SHA256

    cd824b36e548c6e47c94fd6a881dba058eeee7bc64f410da17cdd06058d3e473

    SHA512

    5fa7ec43940260f0d15cae8b48a481187de0b5fd1549b85513812f14ce2604643db39116ab78e50d428d67a602ae63ca0a3b8705e048ba49133c49b29e5ee2cf

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\hF2YLtva3diUju.dll
    Filesize

    747KB

    MD5

    d949da968ea04ac3a7ddf0e300bb32be

    SHA1

    581d7d799c538b8e9e578cf57c420fb802d5a201

    SHA256

    5c4756451acf8622efa75639f9131ca8215c165e2ef21cc1ab7f8fee77db462b

    SHA512

    fd00e332af52646425f0d4032bb1bbfc85a44ff274bcf212f1264a29be546db4c1ceab7da32c70248a6baa2c55d2dff47dcb2ac441c783a1d9d1260c4685eb7e

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\hF2YLtva3diUju.tlb
    Filesize

    3KB

    MD5

    5b503f1b4056c3d4fbf2d03f88e1adfe

    SHA1

    c8d659ea27bf0ca0bbfd46865d5796589bf9ef68

    SHA256

    231ef0fef77ab6c7fea053f64a9ce7f9e21646b868bfe391962262fc15c9bb6c

    SHA512

    229207201368d9674258389df19132070390f913aa5cc21b7567c515be5f5e0f07cdaa460d497ae355f27f00f7fc75538783d8890f6c9c0e861a7ecb8f520bdb

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\hF2YLtva3diUju.x64.dll
    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\[email protected]\bootstrap.js
    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\[email protected]\chrome.manifest
    Filesize

    35B

    MD5

    cf441ebe59bae22ad339a687024afe98

    SHA1

    1f35418d1fa184af13dcf91493b5bbc49f84053b

    SHA256

    3f5a5e90ffc0774168798ebaa14c1d9b3a0308d274676e7fb299a58109041080

    SHA512

    9a01d996ca4d179f12d07ff7c51d24c56e37d43a220d6890a923c9ebedfa77fb96dc6d25d076bee945290f951305f3d73c5a774cfe807d07519c79c45586fe8d

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\[email protected]\content\bg.js
    Filesize

    7KB

    MD5

    35d4ccb32e8ca48b36a042bce69f5c68

    SHA1

    a0ade1c326d296ae688345fb141b9b6ec7fff0db

    SHA256

    25ab79120290b38e1d6368d4f2d06c51933ff01b6db75f741de8bf0d5e83f69f

    SHA512

    25fc09efa89efb564a43f6f11ef2e6c8876f941217bf687f664c5bf19721aec9b69806cf823c48c1c148170adda527736122f633fabb4395ec0c897296f151ea

  • C:\Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\[email protected]\install.rdf
    Filesize

    604B

    MD5

    feb8842fb94b51b29b0ea620f4ec2e8f

    SHA1

    13c8965d080f28abd17685fe42e3a51e1ce38f10

    SHA256

    4dfd4b6fd13f4e8d5d7b26bc2e4d87a2148412e99e3648340b1e9cd50ae503e6

    SHA512

    9b9192af0637589a810f57f06af7f697ed755e14a21e5eaac51ad33d92260098b7f6da86710b21d00067e215327b626e826f18a1dd7f4b3519d98dcaa4f1b97c

  • \Program Files (x86)\YoutubeAdBlocke\hF2YLtva3diUju.dll
    Filesize

    747KB

    MD5

    d949da968ea04ac3a7ddf0e300bb32be

    SHA1

    581d7d799c538b8e9e578cf57c420fb802d5a201

    SHA256

    5c4756451acf8622efa75639f9131ca8215c165e2ef21cc1ab7f8fee77db462b

    SHA512

    fd00e332af52646425f0d4032bb1bbfc85a44ff274bcf212f1264a29be546db4c1ceab7da32c70248a6baa2c55d2dff47dcb2ac441c783a1d9d1260c4685eb7e

  • \Program Files (x86)\YoutubeAdBlocke\hF2YLtva3diUju.x64.dll
    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • \Program Files (x86)\YoutubeAdBlocke\hF2YLtva3diUju.x64.dll
    Filesize

    885KB

    MD5

    1a6b1013f17c1cdc6e98f82cd2568ea8

    SHA1

    c96e7bdba616743a5c05b08a342d89ed102376b0

    SHA256

    fa9dd2bd7850053b251c9b5f27f1ac43ad04abf85de61b1928b7c2d562d3290a

    SHA512

    10596f46c52ca3f50d6b3c7c894fff8b41f4fe920c6e5e0138cf7e95e85bfe1db8d5f1a63939832cd48cf29f571dd36de40ebb931fb9b14a106518ae4fc17ef9

  • \Users\Admin\AppData\Local\Temp\7zSAEC7.tmp\MCBy7ove7Qv42vb.exe
    Filesize

    760KB

    MD5

    dcd148f6f3af3e3b0935c4fcc9f41811

    SHA1

    ee9bdbc7c568c7832d90b85921ab20030b6734cd

    SHA256

    f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4

    SHA512

    34be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886

  • memory/1092-56-0x0000000000000000-mapping.dmp
  • memory/1100-77-0x0000000000000000-mapping.dmp
  • memory/1100-78-0x000007FEFB8E1000-0x000007FEFB8E3000-memory.dmp
    Filesize

    8KB

  • memory/1740-54-0x0000000075291000-0x0000000075293000-memory.dmp
    Filesize

    8KB

  • memory/1800-73-0x0000000000000000-mapping.dmp