Analysis

  • max time kernel
    132s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/10/2022, 21:12

General

  • Target

    135708784e05f373f6ad37ca5cd1f4073c485a2326c2bcf2afe6bc1502a29c76.exe

  • Size

    313KB

  • MD5

    96a8792746c1cead63d29ff10aec3f0f

  • SHA1

    e7bfb4285338795371bbcb9944e02d838c1082fc

  • SHA256

    135708784e05f373f6ad37ca5cd1f4073c485a2326c2bcf2afe6bc1502a29c76

  • SHA512

    94cc85bbf8d86fa51958bcdd7608a40aaae42b322196f22947f3a7d8b0f8ab3fd934b899575547c8de210fa8a978a0197ae4456c9dfa9111396bcbe2d1b2b956

  • SSDEEP

    6144:91OgDPdkBAFZWjadD4sJxpRnHaQPFggB4hwyuKelTUWD30sBH9:91OgLdasnHacbB4juKfg30sz

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.

  • 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\135708784e05f373f6ad37ca5cd1f4073c485a2326c2bcf2afe6bc1502a29c76.exe
    "C:\Users\Admin\AppData\Local\Temp\135708784e05f373f6ad37ca5cd1f4073c485a2326c2bcf2afe6bc1502a29c76.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4116
    • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\setup.exe
      .\setup.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:3436

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\wxDfast\bhoclass.dll

    Filesize

    137KB

    MD5

    ac13c733379328f86568f6e514c2f7f8

    SHA1

    338901240fedcef4e3892fd4c723c89154f4de05

    SHA256

    7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

    SHA512

    35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\[email protected]\chrome.manifest

    Filesize

    114B

    MD5

    6bb1f8bb285245f4045adc300262a0e4

    SHA1

    f3ef56a568d0aab662c787e53eccc82a3dd29b7a

    SHA256

    dc4eb6becf3453dbe998fd31b2f39959a3aacecb25252f9485500449aa2d06fc

    SHA512

    39a71831cd8dfa9e1bc4d678df07262e623860a9fa9c0b102b15fca1cbab3b5bbf4d36b07678d5bced4537b0c10b3839692aa7fd986b09636f85caba6c62681a

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\[email protected]\content\indexeddb.js

    Filesize

    1KB

    MD5

    498634d4748aead47b9a06dd42340972

    SHA1

    ab940090aaff1bc1bac960eeb5d12b7236bd41e0

    SHA256

    78369efa6e0fc66ecfa5d4e08264048b3ad838b42687c8c63a961818c421e325

    SHA512

    319cddff2e724ebb806514f5c668b4d1c76f0e0d1380d2a1474a923b7a58530463ca35ff05cefb126a41de37597010a122c2f1ace0838f94ba1eefb961374803

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\[email protected]\content\jquery.js

    Filesize

    91KB

    MD5

    4bab8348a52d17428f684ad1ec3a427e

    SHA1

    56c912a8c8561070aee7b9808c5f3b2abec40063

    SHA256

    3739b485ac39b157caa066b883e4d9d3f74c50beff0b86cd8a24ce407b179a23

    SHA512

    a693069c66d8316d73a3c01ed9e6a4553c9b92d98b294f0e170cc9f9f5502c814255f5f92b93aeb07e0d6fe4613f9a1d511e1bfd965634f04e6cf18f191a7480

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\[email protected]\content\jsext.js

    Filesize

    6KB

    MD5

    266b4d5d4d30d376e849c5debdb38b63

    SHA1

    0144d6620c9069529600058d975be9a973d014bf

    SHA256

    731668bef5dc1dd4edfcec33b70c418fde1a11aeee5eaede04d45fea8c6e2400

    SHA512

    d763ab0a5931283cf9ae5db85296f4b89dbf296ceb7ef6125c4baeb2c7fce263e82652afa91af5cf14952b49ee5db7688d1cad252b153cb552394ef8f1636598

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\[email protected]\content\lsdb.js

    Filesize

    1KB

    MD5

    29aec5ba42e71f0f718f81f967e827ab

    SHA1

    be5b329e7bd7ba1f5ec0dd33b44f74d7b7bde0bd

    SHA256

    4750733e4fd30964f34bca321d4423eabb0d508371ee723639be78578b48a503

    SHA512

    650b99d4c19ccbef99eed68a66552fa2153b57590ce684489b82e8a64779b20fc1958098806b785e4d8cfcc690ddbe986d3487f7dee2c66d83f8ff0e587c7360

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\[email protected]\content\prfdb.js

    Filesize

    1KB

    MD5

    4628796d050b89d79eaecdfb2bad977d

    SHA1

    3403d1d0ea38041d1bb3ca67c06f20bcb8bc38a9

    SHA256

    9e503e134a0727174a0844db18a0f6dafd46047c26920327d7f3a6f7711da3af

    SHA512

    ff5f42973b1c9207798038920949fccb7bbab53abfbbe72cdb991a4d362d7f5b7050bd6dc7017d40073c01ebf799e48bbf4f43f9660e98f296e4e01fec3eb425

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\[email protected]\content\sqlite.js

    Filesize

    1KB

    MD5

    c468a7429c4950af6d44d9349839d316

    SHA1

    702308e6f42b1c5a33bba29582ee3edd8391bef4

    SHA256

    84d7f67363f277dc340cd5458d73f8c1e793d635ebef49b431779b0a450a8063

    SHA512

    5b8ed39b75075d14ffdd07abdf6270ccfc6e14a9ba11864af53474a2eec1c55acba5b1927f7923467fb185407e5c402566c124e7fc9e14cb5bd3b2768d630d69

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\[email protected]\content\wx.xul

    Filesize

    228B

    MD5

    189012b12df198156cc9c6590497f253

    SHA1

    3ff1c01e0e54fabe109f5b44153ff0257943f846

    SHA256

    b547241033afd21e00e64a52e94ea964ff8ca45242d8df599c677033c720a6c0

    SHA512

    2cccda7cba87c755894b59869b6522dd0055176ee1d30da0f08c52f38133fb2c28ad5a97a8157a52e32b6d396fe54b5eeff66554cf9f23ba2a62c9ee672bed47

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\[email protected]\install.rdf

    Filesize

    677B

    MD5

    71858341c71fed7dfbf4194224e14d9f

    SHA1

    f293d79d7d233233722db0c5f9cc0bc8fbd05c26

    SHA256

    3695defd49ca177558adfc174e164d7b19d3fddc8b348f6d90cc80407a84e400

    SHA512

    da963b263590c7cccf26e803496a9a2ae6c2ca56d2c5186c0f803c0f05ee6a0b05a815a06e416c91b1fb0f890e5978b0a503fc9bd4cdb671bdb7d92b983210d3

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\background.html

    Filesize

    5KB

    MD5

    b6c9cc917a85ec2083fca5770ff68f38

    SHA1

    f86c8ae8ba421cea09b7e68ab725c9da237caa03

    SHA256

    37382b8ec0099e706aab657730feb073b570101888ce74e5193a206dd7ee172d

    SHA512

    34a3a236ab643bb93b560c9a4c40b9883d081065adc40b086eca66cd80fca8ecaf03cad487ba42b428a282ee334bd72e5771db29dfe6653edae202a95ef504d9

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\bhoclass.dll

    Filesize

    137KB

    MD5

    ac13c733379328f86568f6e514c2f7f8

    SHA1

    338901240fedcef4e3892fd4c723c89154f4de05

    SHA256

    7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

    SHA512

    35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\content.js

    Filesize

    386B

    MD5

    9ab47c1a69db9a2cb1b73e3870dad030

    SHA1

    b352d52809dce6faca5a8b0db6cd416e891b0dc6

    SHA256

    e2cfc28ae4f4a98d88cc028f4b2f71244e6dee1d693b863bdaf73c93c653a455

    SHA512

    aba7649f15f245cc9743204ecf558312019f12bd48e5915cb01a252dadbb8c67ed9f7460697da68084c6fc4b7e02fffa6673930909c0ab83c9729f537acf2529

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\ofbghdipkieneenifchpkdphcnfnhjac.crx

    Filesize

    37KB

    MD5

    ccc6b6290f8f7f0395f71199eddef098

    SHA1

    60266111c30e0a0432e73b4ed93bd2ca3c6c86dd

    SHA256

    1d8bd15d5c723c421e3229fcb48955b07ab619da7f1b629eb37151590c2e9e39

    SHA512

    fc8375ca68f5f07911878bbfa850c81340221b7994d8df775f623dbc2fd6767053bd45b1b223be4b76cd88f545b8cdc804471e8416704b6c2c075e4bccbf688d

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\settings.ini

    Filesize

    599B

    MD5

    4f0d6cee68e16b5b9a0dcab1320e7564

    SHA1

    efb62f3101314953bb823976e46650ecf2bc825c

    SHA256

    91806f7d2e47c0511afb4e2da6d55022ca6f4a201b06db0b430a6ad222a77833

    SHA512

    273ce926f1e82eeb0db759e2f49939075a5eb59f7340411eae7146fc1178c64825c7d02c13a965e806f03746a2b503c1c60ef9aebc61e769ce9226b16a58919d

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\setup.exe

    Filesize

    61KB

    MD5

    201d2311011ffdf6c762fd46cdeb52ab

    SHA1

    65c474ca42a337745e288be0e21f43ceaafd5efe

    SHA256

    15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

    SHA512

    235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b

  • C:\Users\Admin\AppData\Local\Temp\7zSCA59.tmp\setup.exe

    Filesize

    61KB

    MD5

    201d2311011ffdf6c762fd46cdeb52ab

    SHA1

    65c474ca42a337745e288be0e21f43ceaafd5efe

    SHA256

    15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

    SHA512

    235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b