Analysis

  • max time kernel
    40s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 07:19

General

  • Target

    5937b3abf88b5b7d876e87d449e70092ffd446330e0b052f4b27ba350b14bbbe.exe

  • Size

    252KB

  • MD5

    91eaf010bcca4c5d129ff4bba070af9e

  • SHA1

    95ce34ed338c12745cbdbd912e5395c8ef0cc3c7

  • SHA256

    5937b3abf88b5b7d876e87d449e70092ffd446330e0b052f4b27ba350b14bbbe

  • SHA512

    f5def8d002c84ea64634ca9bd7e12d713b7e027bcaa1a939d93e248dc551327c9a76113ad91526ef4f36c6bd1705f4f96e2626aea509bbfb97d4ac60776f264c

  • SSDEEP

    6144:h1OgDPdkBAFZWjadD4s5NPLQdHT0SqqQGIs/WYAVNF2pG:h1OgLdaONPUdH4SuwWYAVB

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.

  • 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 8 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5937b3abf88b5b7d876e87d449e70092ffd446330e0b052f4b27ba350b14bbbe.exe
    "C:\Users\Admin\AppData\Local\Temp\5937b3abf88b5b7d876e87d449e70092ffd446330e0b052f4b27ba350b14bbbe.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1780
    • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\50649890d5717.exe
      .\50649890d5717.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:2040

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\[email protected]\bootstrap.js

          Filesize

          2KB

          MD5

          60d38b6b573949180b85c4b98f436bca

          SHA1

          4d2cbc33892b0bbd96e82287052f4841c2e76813

          SHA256

          3cb337824ff07758e81b1804483a9662286e286878e527a5ae576c4a9dfa7948

          SHA512

          fb58eec84305dfa3260cd37bfc0cffb577a8713120e35a93f6d454cf698a63133008c5208a45f28c4de2def3ff00c6a77967a199396db38710f68bd9d32f34cb

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\[email protected]\chrome.manifest

          Filesize

          116B

          MD5

          4212788d4354d16cbab1a2e2fb947d97

          SHA1

          fac12dc88e636f0c362871d2a2ea133674b5492b

          SHA256

          9d2279a86365d2ebd190572c8670ece99497e22d9c0e792da69edb4bd17bf8ed

          SHA512

          f16bd75c49a9846f4a820b6cad6cf71a7dea646cf3e3880763a2c601c3ee8e7db773283b288ae42eeb827d397498add528bb404a8bde7d7db4f537d9f48adb24

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\[email protected]\content\bg.js

          Filesize

          8KB

          MD5

          c7ad303f9b7186392a49af56b45b3547

          SHA1

          86bbc5079708df0edcdfbd449b5281cac553ec78

          SHA256

          60a4791ea1aaa332d9d2278c1047cb261878f81c7d09e046c2592196bebdb0d0

          SHA512

          67a0d03f55c8268198b25f19b5c52d4c04efe62ffd7f1094d1b7c08bf27e4a31a446e365a25847add748f15b93f7f5d5cb01aa85e80f3d4c2013357afd116a0b

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\[email protected]\content\zy.xul

          Filesize

          225B

          MD5

          424bbd737a0e5ab3e64c731793161966

          SHA1

          7ebb6cff0fbda7bfd61e803a1781beeb646e8e70

          SHA256

          f8ae4801d1f38ad232c7dcfdbd2bf4832399484e06d86a430cf2a87cc8144cd6

          SHA512

          dde649db9e7757fea3f77851f061ea890b6d0154f5ed06d1f51b15dff093452d1fe5f93315e2473fd1f06b5b99669964b6c660fbf382d3fb3b9dcd07105bf182

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\[email protected]\install.rdf

          Filesize

          717B

          MD5

          81917d7a3d0f92121dded8f8436beabe

          SHA1

          1e1819e22a010e70a032f239538735d26971fe73

          SHA256

          3b10cdca7a6810e4b04594ab74c9dac91baafb50673e4fb065dc706c2058661a

          SHA512

          42708674fe71dac9d7695a8e31c27a5b7d7508739c1bde2ac4bff3df731277bb6c7561a4166d5a2cf010e8c573db30b918edc84163c55b46c373e6259500fda0

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\50649890d5717.exe

          Filesize

          65KB

          MD5

          4ccf1a317aa8539c857835e4ebe9c806

          SHA1

          223b73d09d7398f40aff3ccc569e66cae3886ee9

          SHA256

          4529889c5575cd4e28b3691f0489c806442840292a9e459ada4dab3e024cc242

          SHA512

          ecab68799b5a51c7d2a3735a9b3c17ba20a315618aa9575a5b02d5d4535716966031a26982012669f069dbfd8a6ab62f95737b7c402bf680f3a498900f627312

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\50649890d5717.exe

          Filesize

          65KB

          MD5

          4ccf1a317aa8539c857835e4ebe9c806

          SHA1

          223b73d09d7398f40aff3ccc569e66cae3886ee9

          SHA256

          4529889c5575cd4e28b3691f0489c806442840292a9e459ada4dab3e024cc242

          SHA512

          ecab68799b5a51c7d2a3735a9b3c17ba20a315618aa9575a5b02d5d4535716966031a26982012669f069dbfd8a6ab62f95737b7c402bf680f3a498900f627312

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\50649890d5750.ocx

          Filesize

          142KB

          MD5

          633e7480df2a82ffb537684d1c4b5be1

          SHA1

          6534c6f3342819ec7ad126fcae46aa70e8a277e7

          SHA256

          de1c043cd39c887c12ab24581903cd242287afeb46c7c02e9b52a659ae2945a7

          SHA512

          f77d7a0b1bb2bbbfb8eab7fa2d50a13f4f75c7a56bcdc26d026981940bcb1c30cbf8c27e07a0f828dc214616759dc9ecddf184f672f437df8606e76693f3270c

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\50649890d5789.html

          Filesize

          4KB

          MD5

          67fb4ffbd487a58c0521a3cffe8056b8

          SHA1

          ec5c42167d1e63fd88389e2840240975a8048843

          SHA256

          8fb59673cdc586e3bc9b9bf1508f6db1573e345b53cfb29c6755b64cf87a7fa3

          SHA512

          12ecfbf0823f83566c447cf9331270a3ef8144407b82d0d4e2ea066a29d7a9755a9f58a1a45e40abf0692316d1fc906a0169e3d91f9527f5f27a55172ea34261

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\50649890d57c3.js

          Filesize

          9B

          MD5

          99fa5d714d971a49b67de27e0d8871be

          SHA1

          d0621e846ea60fa8d0b2c8e622e495af49cd7359

          SHA256

          f560d76474380da948a0c5ab8682dc026822d9685268c592f315224b1b968bf6

          SHA512

          2fec19e4f2a974227922a7e057890141523ae73fbfa127f9e8cd00dff71b29abb93cb865c6d74ecf3df8bca440c558d4fbf2f80e82cc9636320ab5edb95ebad5

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\lpcgbgbhnfonnbnhijdffgdalefonieb.crx

          Filesize

          7KB

          MD5

          34cbc42015c41b50af28396e8921bd84

          SHA1

          05927664ea327bd6b93f9245e306f795fe291223

          SHA256

          4c2ef58fa85f5e87212a149e1ec9cc967345b63f18df427be83e9967f8ff3ae2

          SHA512

          7a8c57392a6885b40b9a2f098a5771879af38791e0ede27a51838b0a2aa2a823d4d33ac135b2f4eaa4d4d35e0065712e6245db817de9eef44402f8ab63c74e1a

        • C:\Users\Admin\AppData\Local\Temp\7zS53F.tmp\settings.ini

          Filesize

          903B

          MD5

          b6b60f3d4cda5d91019bd092025276c3

          SHA1

          f3194c311bed7c44e94e909f6db218f5d252d839

          SHA256

          cc4a75f2450f11c098e2977512aacbaa8e227ce8d9f9a82d6abeb534394c3ae0

          SHA512

          50e6ad9504ce049130e670deafd780761fd39d487075439794c2c21ca832a132577aa18a08990c8975dfee43bcffbbbd93b5bf282a0dcb2aeef4564b1d3ccc75

        • \ProgramData\wxDownload\50649890d5750.ocx

          Filesize

          142KB

          MD5

          633e7480df2a82ffb537684d1c4b5be1

          SHA1

          6534c6f3342819ec7ad126fcae46aa70e8a277e7

          SHA256

          de1c043cd39c887c12ab24581903cd242287afeb46c7c02e9b52a659ae2945a7

          SHA512

          f77d7a0b1bb2bbbfb8eab7fa2d50a13f4f75c7a56bcdc26d026981940bcb1c30cbf8c27e07a0f828dc214616759dc9ecddf184f672f437df8606e76693f3270c

        • \ProgramData\wxDownload\uninstall.exe

          Filesize

          48KB

          MD5

          a724dac649142fef71fe4b529684e969

          SHA1

          e2878e84886ec53a1332ad969a825062526b5cd4

          SHA256

          b58c58b5073034d74c5d93902bbb9d402be063e907bdf77115b55bbb99af21dc

          SHA512

          9f475ad52fa2b7f82e74df87c02e42f937b5e3b62773b7d51cb53facfcc8b4934ad3c2fc21496cfabaa4dd103a309ed5cccad1ad3d6037f6c4f3a540e3e9d5b3

        • \Users\Admin\AppData\Local\Temp\7zS53F.tmp\50649890d5717.exe

          Filesize

          65KB

          MD5

          4ccf1a317aa8539c857835e4ebe9c806

          SHA1

          223b73d09d7398f40aff3ccc569e66cae3886ee9

          SHA256

          4529889c5575cd4e28b3691f0489c806442840292a9e459ada4dab3e024cc242

          SHA512

          ecab68799b5a51c7d2a3735a9b3c17ba20a315618aa9575a5b02d5d4535716966031a26982012669f069dbfd8a6ab62f95737b7c402bf680f3a498900f627312

        • \Users\Admin\AppData\Local\Temp\nsi781.tmp\UserInfo.dll

          Filesize

          4KB

          MD5

          7579ade7ae1747a31960a228ce02e666

          SHA1

          8ec8571a296737e819dcf86353a43fcf8ec63351

          SHA256

          564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

          SHA512

          a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

        • memory/1780-54-0x00000000762F1000-0x00000000762F3000-memory.dmp

          Filesize

          8KB