Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2022, 01:27

General

  • Target

    953243c7a380f8851420003c9d5b607f97100ae0bdbc7285220816fb6cbcbadf.exe

  • Size

    250KB

  • MD5

    d4ef935eb245e4fa46aab5b246f6cf66

  • SHA1

    d1ae57e732d4ce961e622813743fe48cd99e61c2

  • SHA256

    953243c7a380f8851420003c9d5b607f97100ae0bdbc7285220816fb6cbcbadf

  • SHA512

    1f37996467dfedede6b6c8319f9f05f1f8799fc997117fd9ca2da54b122c123e12d5b8629e707e8f027cb8e855f6ab3730b4906a945c808219c6e5b97cee114d

  • SSDEEP

    6144:h1OgDPdkBAFZWjadD4s5B2J+x2RGK5jAEsJxDoiyAj1DUWm:h1OgLdaOB2JGXxDoiyw5m

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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.

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • NSIS installer 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\953243c7a380f8851420003c9d5b607f97100ae0bdbc7285220816fb6cbcbadf.exe
    "C:\Users\Admin\AppData\Local\Temp\953243c7a380f8851420003c9d5b607f97100ae0bdbc7285220816fb6cbcbadf.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2080
    • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\506f2c004b75a.exe
      .\506f2c004b75a.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:1508

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Bcool\506f2c004b791.ocx

    Filesize

    151KB

    MD5

    c78c6140cb88ef4dc94f999291bb5ab1

    SHA1

    65b47ed5ec889e0e558c79a13a81193fc59b8ce9

    SHA256

    6cfc7fb43715fb13c53ab2a29b68f3a0a0f285c85d1b1443f2c5e73526646851

    SHA512

    ac8865cb1bec889ba493cad3f4c4bac87bfb2fdb15c518626ffa5f8ac6799a6f5c84f358d3e7d35824d6aba29af46c1078acdf30c3bd93981be61312baf6bd26

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    33f591a434fc738c92fcde343d69da57

    SHA1

    d11634f70e6c7231ef0c273f71439b9cb04c4ef7

    SHA256

    48da9471c17cd432e2363d37539ae5a6ffd2fc75d8eecc798c0a10fa8f7111d6

    SHA512

    8c5c5fc739426d344b11214e81516fb3309cb14cb55345aaa32c6dc77d40136fe14c7c97764bf5607f06285bfa395e5f80b68a880c3b502d9be3744bcec50fbd

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\[email protected]\chrome.manifest

    Filesize

    116B

    MD5

    8a037a620585997eb8bec958f12f9e5c

    SHA1

    7775d6fe10b39fa59c6a4d590c797d1375a26352

    SHA256

    bc122c582f9540bf66d09779037f7894b9cd968abaa246f0ce8fb32cd6843578

    SHA512

    615ff09c97c71cc4778ca11c1dbf37ba5fe9565097908982badf9cc92e12005b6ebba9d6231fbc939854a643b6d3956f528647922818c6d7225c5ea1927b769d

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\[email protected]\content\bg.js

    Filesize

    8KB

    MD5

    92bccc5ed094d0d187dac9146c0caf08

    SHA1

    f591335c86dbe4027b2e9ba4c4606c52f245b460

    SHA256

    d14ac1523775cb7031f55e9f269ae1bab236f03c49798386ffb60ca378b0c8d5

    SHA512

    743882d36ba26460b46f2c47f9a011d880a247ce0f1fdce858a3d5f74c413ffde7004289b6dffca07c1408f7bfda2d431fc62d77758e5436c4a2108d44bb20e9

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\[email protected]\content\zy.xul

    Filesize

    225B

    MD5

    8c57a5f3c32a2e64c9847f891a9c814d

    SHA1

    62f6a373dd16ca3229238a586d6c7dd057461c1c

    SHA256

    b68556ed5746aa937a37f641feb599209137d86d00ea02e4216ff8ad48db587e

    SHA512

    a26ec7fd77380070d75d8cf363ecb85bcacd4acdf22367940e9091edc56995b214e3e88058e1319e9af0f8838929ce4ce9e633cb6f942f62c7ee7bd7583a2243

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\[email protected]\install.rdf

    Filesize

    700B

    MD5

    c7fb2447dfe67e5109fe4ac1fac6591c

    SHA1

    aaa4e738ccaafeadc7b6a6df6274c2c954fe5cc3

    SHA256

    f6c739d659c5d8021de0fe6ca759bd672a749022cb86dc7839b37418800551fe

    SHA512

    c47d7aa120c6c16499c30995cfa02134cd13447ba8829f5173b4dbd2a3295944a4ca7c3c8c6d5116ed361d5e340a1b0b150eeca09b426171aa018417e7ab7bf9

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\506f2c004b75a.exe

    Filesize

    65KB

    MD5

    4ccf1a317aa8539c857835e4ebe9c806

    SHA1

    223b73d09d7398f40aff3ccc569e66cae3886ee9

    SHA256

    4529889c5575cd4e28b3691f0489c806442840292a9e459ada4dab3e024cc242

    SHA512

    ecab68799b5a51c7d2a3735a9b3c17ba20a315618aa9575a5b02d5d4535716966031a26982012669f069dbfd8a6ab62f95737b7c402bf680f3a498900f627312

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\506f2c004b75a.exe

    Filesize

    65KB

    MD5

    4ccf1a317aa8539c857835e4ebe9c806

    SHA1

    223b73d09d7398f40aff3ccc569e66cae3886ee9

    SHA256

    4529889c5575cd4e28b3691f0489c806442840292a9e459ada4dab3e024cc242

    SHA512

    ecab68799b5a51c7d2a3735a9b3c17ba20a315618aa9575a5b02d5d4535716966031a26982012669f069dbfd8a6ab62f95737b7c402bf680f3a498900f627312

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\506f2c004b791.ocx

    Filesize

    151KB

    MD5

    c78c6140cb88ef4dc94f999291bb5ab1

    SHA1

    65b47ed5ec889e0e558c79a13a81193fc59b8ce9

    SHA256

    6cfc7fb43715fb13c53ab2a29b68f3a0a0f285c85d1b1443f2c5e73526646851

    SHA512

    ac8865cb1bec889ba493cad3f4c4bac87bfb2fdb15c518626ffa5f8ac6799a6f5c84f358d3e7d35824d6aba29af46c1078acdf30c3bd93981be61312baf6bd26

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\506f2c004b7c8.html

    Filesize

    4KB

    MD5

    d384da0cbbd3d26ed7e5fd399a99fd72

    SHA1

    4e910d9a5676570d3e2a474a9e0eba3a12e8d655

    SHA256

    218faffda086ba63c2f8d37cdaa99329db63566c51412e89749ff68ffdd8fb45

    SHA512

    953549facd9b725681d5d54a82418681ce38a4358030ccc2b07c9632818548056d21775959342ff34e6cfbf84825433cdd5c53209013240ac2c7b08776ef7641

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\506f2c004b7d2.js

    Filesize

    9B

    MD5

    99fa5d714d971a49b67de27e0d8871be

    SHA1

    d0621e846ea60fa8d0b2c8e622e495af49cd7359

    SHA256

    f560d76474380da948a0c5ab8682dc026822d9685268c592f315224b1b968bf6

    SHA512

    2fec19e4f2a974227922a7e057890141523ae73fbfa127f9e8cd00dff71b29abb93cb865c6d74ecf3df8bca440c558d4fbf2f80e82cc9636320ab5edb95ebad5

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\lmflkgbhaooodklnkekgclpnihobdijk.crx

    Filesize

    7KB

    MD5

    c5931da994fe03982af021dedbb6f2ab

    SHA1

    20aff5243aa4a917f86b4449a7a2f0cf827eecdf

    SHA256

    8debe6e183583e047de3974568185d4a2b170fafc7e69f916607cc39357df075

    SHA512

    48c6f18cff20c10472e1407c9f18fab994a6413591a2f09c5b802762661af794bd60b6d71e416846460ca5373dc4ce994fa5c2cdcf2819df997276f07b98ffd1

  • C:\Users\Admin\AppData\Local\Temp\7zS82CC.tmp\settings.ini

    Filesize

    882B

    MD5

    134b884ca222e243f57f0298e95a0c6a

    SHA1

    38fb0aea57ae73e59f9064eadb6aa8cc7823e278

    SHA256

    d0478df190449ea4cf5f0cb3cc2e827a50875d76f0013b0e714e487955d81d37

    SHA512

    5975759776ff8bf75e1c85da203b6c29e875b33ce487d8ea74d80a620b4ada678f63214bb3da7e620a1b359b9d489ecbf97efe1911bfc3eae34701878ffbc7c6

  • C:\Users\Admin\AppData\Local\Temp\nso9BF3.tmp\UserInfo.dll

    Filesize

    4KB

    MD5

    7579ade7ae1747a31960a228ce02e666

    SHA1

    8ec8571a296737e819dcf86353a43fcf8ec63351

    SHA256

    564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

    SHA512

    a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b