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Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/03/2024, 04:33

General

  • Target

    c4fc33abd8bfcbdc094010f5682b99ec.exe

  • Size

    249KB

  • MD5

    c4fc33abd8bfcbdc094010f5682b99ec

  • SHA1

    7b4b5ed08de7cbd2d7c499fd1e980f2ce0199181

  • SHA256

    27cce5adc271a57236913ea2c2af6bbe15747a3f458f4f45fb33c81d26225220

  • SHA512

    611a7c3568bd452cd14cbc82742712c9f1af467e4e030a8772c46101070f8bb8e77eba1b48ef7aa235d0aedb9f7e7ec36f832e1252ea7669dec7b5fb8f630c81

  • SSDEEP

    6144:h1OgDPdkBAFZWjadD4s5DEya/AOKh0uw1ndSgo5:h1OgLdaOIIOKiJJo

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 3 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).

  • NSIS installer 4 IoCs
  • Modifies registry class 45 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c4fc33abd8bfcbdc094010f5682b99ec.exe
    "C:\Users\Admin\AppData\Local\Temp\c4fc33abd8bfcbdc094010f5682b99ec.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1828
    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\50e4f88a723a7.exe
      .\50e4f88a723a7.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:2808
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1328 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3004

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\SaveAs\uninstall.exe

      Filesize

      48KB

      MD5

      e9c9582996a23b2a49a058dcaa3b5525

      SHA1

      f527cc64e759f06c011e5eeffbd217d5249c04df

      SHA256

      43c3e8d7aa00a299f084db17e384aa96de508565f82264ee88bd9c7647fa9fc9

      SHA512

      665613fc7f20e2c4ea40b7a8f39b4c2ea2a24c5119ee86ef072bbe29f606cd78a43081aa0a89b678a46d34e470e1ed10e31d590d3cb5447e1231707fea8e490f

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\[email protected]\bootstrap.js

      Filesize

      2KB

      MD5

      c4234fb051e7c22948a366f946281e9a

      SHA1

      788ab1f8bbb98934a420efde8ee47dba23510c8d

      SHA256

      b0d0d9bfe8daf855eb655660fb291ef83fd68cac0084779975bf2abadd3dd54b

      SHA512

      ec9999dcb5f1346ab7431453a28bbd9f901e626c872b43259367996fc32f7cf6c94b9f44635b9ffc927d6c23aa2a9f2648cb7fa0b0e1be6972b14ae2a7cde881

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\[email protected]\chrome.manifest

      Filesize

      116B

      MD5

      345089fe6cbdee79782333cd60c81336

      SHA1

      728de608d29ec2cb78236573d2b2b52da71b1905

      SHA256

      6bc8efb12c3d64d402aa84bc6a08c63370ea42c76162f76c4c59463835678112

      SHA512

      ebbf134e35a7f9eded08b0bd2715672adb0282e577e11137a3ebe4940c1f9218a80fcf6659ea6e1dd6602b01fdea54fd82f0a691519d4ce77a4708cae4febb73

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\[email protected]\content\bg.js

      Filesize

      8KB

      MD5

      778f5be2e6e4ee8739509e4d01ae7a2d

      SHA1

      828143631ce149712377f6688fc15b277665fcef

      SHA256

      583451d93b1bd0200a6e7449f24e177d6330d93a34eae65022295dd8c4876a68

      SHA512

      2c688786de204871853a5577aacd3e79d2888fbd441a548a70fb83c6acdbb668383d7174da6d4b2a322cfffb770bd7de8dd28b102c08ad984179157c1951b4f3

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\[email protected]\content\zy.xul

      Filesize

      225B

      MD5

      b03876d3e2b4e71c4787c17a128574f1

      SHA1

      c88bc93d3222714acbb8c96b6188834c165746b5

      SHA256

      8c2029f195fdcacc8ca32e33a45d1a3fe5074f7607b5390a14653a928d831226

      SHA512

      b9c39aee9e17d9bcc9cd7f0203f3ce67bc716f00e34a2c4c59f5039d1caebce519ea735864ffefe05785023ed35dce9693ed69e40b617323a8c7e31478bf9ede

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\[email protected]\install.rdf

      Filesize

      702B

      MD5

      b1950611947e00729077fa66fd5476a4

      SHA1

      190c21dd4a5910d6907e04dd2ffabad04393d407

      SHA256

      d04d52e7bd0a993af93c26fe1b3b0a05ef96fb21577d1697fc967e20967b445f

      SHA512

      222df6100a214f6d2a84891dcdacdf7ea05007a8babc69f0c217fbf98dbcf6321986d28f3ddc2bd42b05c92b94b589e8e23972dbb30dd08a4b74c1d5b45bde26

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\50e4f88a723a7.exe

      Filesize

      70KB

      MD5

      ebcc3eb1a7021aaead55fb677465a717

      SHA1

      3c8347f0fd520ee423a4aafea1112a0b06f4b6c8

      SHA256

      5e74f0e710c067ad82301c7c14ed6afb138f974f351042cfe0ecd275cea2612c

      SHA512

      0f18c22e6eff8ec90ccc616e62f32701d046185311e01e5f506778fae0c31f35123c3ce756ff2c0eef6f23e06e280f870b80080d11dc6da3aa25901f5a92d995

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\50e4f88a723e0.dll

      Filesize

      115KB

      MD5

      6696822add17061dc0bb8ee5b42cc2d4

      SHA1

      d4622558ba366f2f94560da301a81c6c16f95a3c

      SHA256

      73c44d8943947e3cf9ecabdeea4d9a37652614f5490a1f972816be4123795125

      SHA512

      0f1946ce002441d010f67156f67b9d18e01ba35edfeb66ce8096467d3126b547e5040032253275b173f2dba9bce983775f360d83ec026986b55cb85e4b63f099

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\50e4f88a723e0.tlb

      Filesize

      2KB

      MD5

      096a65b8a695249d5d554776f1eeace3

      SHA1

      2f2506b886a59b4408b23653d8734004ec2dda6d

      SHA256

      a602c790bcf424c154a082a88a495b256dd5456f627943568c358c74f606c568

      SHA512

      6e832caff1951b4fdb489997af5736fdbafa1de5573f629fc6798666bffd0ca0715311ce6590202cc970cce4492d94994a588547bb579bf70bc264683bc45cdc

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\gciogfllloojbghjgijhdlmepbefgmnj.crx

      Filesize

      8KB

      MD5

      20caacbffc43ebe2c7ae71cb5fe9faa8

      SHA1

      aa47a95d1a38d70259b7a5424800e656c3948c2e

      SHA256

      9a2295fa6291e601957eea614f5914dda64c1187aeca84a441b17738526fb7b7

      SHA512

      3be076a3b249d6496136fa5d03fbd8a855840efe0e188726fb9a653bf050f9a815ca20bf92863cdc849b4542d6e5bd6d17e991733573b45dcd75c9d741fa0c87

    • C:\Users\Admin\AppData\Local\Temp\7zS47F.tmp\settings.ini

      Filesize

      6KB

      MD5

      f4517f9a00c604e7cdd85a2446a66c61

      SHA1

      6002dfb93f35f14f47aa0431ae26a433171f3775

      SHA256

      6d7ab4f6c2587145fe676642301c219f5b45b0b7275418f5be34eb4ae9d67db8

      SHA512

      75040a78ed817af9024e3ad759293da801755141d3b0169f0dec79a149bc6e2e7ee5a4928782956b7de9bc2fda867bf4dd3434efe0c68697608bd10438529c37

    • C:\Users\Admin\AppData\Local\Temp\nsh1682.tmp\UserInfo.dll

      Filesize

      4KB

      MD5

      7579ade7ae1747a31960a228ce02e666

      SHA1

      8ec8571a296737e819dcf86353a43fcf8ec63351

      SHA256

      564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

      SHA512

      a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

    • C:\Users\Admin\AppData\Local\Temp\nsh1682.tmp\nsJSON.dll

      Filesize

      7KB

      MD5

      b9cd1b0fd3af89892348e5cc3108dce7

      SHA1

      f7bc59bf631303facfc970c0da67a73568e1dca6

      SHA256

      49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384

      SHA512

      fdcbdd21b831a92ca686aab5b240f073a89a08588e42439564747cad9160d79cfa8e3c103b6b4f2917684c1a591880203b4303418b85bc040f9f00b6658b0c90

    • memory/2808-52-0x0000000074800000-0x000000007480A000-memory.dmp

      Filesize

      40KB