Analysis

  • max time kernel
    47s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 21:08

General

  • Target

    a7a36552acee8be0bb07d23b42d4541092fabd0f34e4d4c73765cda431ba18ea.exe

  • Size

    931KB

  • MD5

    be1d729e901cf7609cc7199b3e14ecc1

  • SHA1

    298125a233b355285694a0cd9950cdd7936fa597

  • SHA256

    a7a36552acee8be0bb07d23b42d4541092fabd0f34e4d4c73765cda431ba18ea

  • SHA512

    7d73ad79b1ff3f304fe92486224be15b3e6944371ef2c0666259b983d25014a04dc99c6628bff9e2a591f740edf2ea896ad6d0818a83307ef7cb8b9484366b39

  • SSDEEP

    24576:h1OYdaOYCZ/iWCvu/2sWsJA/jlt+DHhsm:h1OsyCpYO/dJJDHhsm

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 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
  • Drops file in System32 directory 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7a36552acee8be0bb07d23b42d4541092fabd0f34e4d4c73765cda431ba18ea.exe
    "C:\Users\Admin\AppData\Local\Temp\a7a36552acee8be0bb07d23b42d4541092fabd0f34e4d4c73765cda431ba18ea.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\LkjiRkiMJiEahA2.exe
      .\LkjiRkiMJiEahA2.exe
      2⤵
      • Executes dropped EXE
      • Drops Chrome extension
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1228

Network

MITRE ATT&CK Matrix ATT&CK v6

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:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\LkjiRkiMJiEahA2.dat
    Filesize

    1KB

    MD5

    52514756fd2358e0ffd2de72b30322a9

    SHA1

    6dafb608fc66e21ee9d9ef429b33954ead024dc1

    SHA256

    f7da17c176d4f76f8e1c44ddd3aaa3c9dd31b70ca1c8f2b9f93009245bff19ff

    SHA512

    fd540328f536a7175b9f72bdf0f9fce65c0ab39463ed29bbc600859028b3f7f6192c8925663052bc862feaecb41646d0ee9d52abaeacc77b4e0afe8417556672

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\LkjiRkiMJiEahA2.exe
    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\icdlleaiebjpeafeolocfgafcoagfinm\ArVz83q.js
    Filesize

    6KB

    MD5

    17b897eec66405de708a4a513643820e

    SHA1

    69414f997566611c37196cbe5147217c13c3aa42

    SHA256

    809bfe841b78f0fb7ef4955d67426b0beaad41e4cc331707d77eec31619ed997

    SHA512

    e423c6ab80fe8d3bdab909ccaf8106a60512fa4fb2baa19790e13eeb50f8eb076d2efb6a8eac12761df0e0c278330afe9c2958d53f0826ee4ea17d2e741f3523

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\icdlleaiebjpeafeolocfgafcoagfinm\background.html
    Filesize

    144B

    MD5

    dd03505b620ae49f823aff1fbeebaa87

    SHA1

    121cd4a96e376bc3c08c8168390055702143cc32

    SHA256

    3190ce205c1430f3443b62c6b62ea5c5871d21ac8fb31f9500290da6cce81517

    SHA512

    785d51b68ec40f00a9ed3fcdf35d35688334688823e12c0a6ad1a2b1cd593b484422e9ca487a46396f6f294ea132d5d192e9ed22769c6d99b6af500386d4d9ba

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\icdlleaiebjpeafeolocfgafcoagfinm\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\icdlleaiebjpeafeolocfgafcoagfinm\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\icdlleaiebjpeafeolocfgafcoagfinm\manifest.json
    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\[email protected]\bootstrap.js
    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\[email protected]\chrome.manifest
    Filesize

    35B

    MD5

    648207a469f8e28cb6822b429b76500b

    SHA1

    8cbb94d473421e32ade6dcd1748379f1bfb7edf9

    SHA256

    8cb48352a9fc2291da9ae38d81c5ea7cd7099ed57260b5d05b64876a757daae4

    SHA512

    137a98c06aae30ade22915dbf417b24d654d93d13f812f0b85f3de45aa8b81538b2e74e6eb7501a6a188d8c9b7460c8ca1d2d726a0231326e0173036bb42b7e7

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\[email protected]\content\bg.js
    Filesize

    8KB

    MD5

    3937a525b50107bb3d12ccaf4044ae8a

    SHA1

    8e127bd33aeaf1832c5663768c2923fa7bc8addd

    SHA256

    029a5fec2215eca7dae604d75927d72206daf2cef00051707923a83ff06b3f42

    SHA512

    7ad939dc66808d50e2fee3bcc6db386a9bcbb65ee6a03b35b699efe65afb6438692a9833c7684a9ef00160cc846b0563d34c586bb20c93ae3caf1b8a263fe9ef

  • C:\Users\Admin\AppData\Local\Temp\7zS255D.tmp\[email protected]\install.rdf
    Filesize

    599B

    MD5

    7243485dd4ee66db79acff3e62755f5d

    SHA1

    db27da8c6b05d369b5c3e226d4dfb8b880a648e7

    SHA256

    e96e7781c38277f266a20397046108cb46b1c7fca6302c0b49ccefd678f8298c

    SHA512

    d320dbc33557703c9ceffa32705a2c5407fa2014abfcdf0cf8e79dcf4c58aef87792d21b9b41d6d23c9112c74cffdeb238e6e8f43b372fb93212788e83a3810e

  • \Users\Admin\AppData\Local\Temp\7zS255D.tmp\LkjiRkiMJiEahA2.exe
    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • memory/1204-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp
    Filesize

    8KB

  • memory/1228-56-0x0000000000000000-mapping.dmp