Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/01/2024, 03:41

General

  • Target

    4a57dc33e1dd8a6ac06309534326430a.exe

  • Size

    990KB

  • MD5

    4a57dc33e1dd8a6ac06309534326430a

  • SHA1

    1172185575ac1efaed8f697d97986b5bb931adce

  • SHA256

    402bef3fa2c40c93e8c4bd23e4605783a172e861e2d542a9f6172858fd438868

  • SHA512

    6c9c5836cb1e42ad8bfb548688f876714364e8a4acbbae5388ee89361e84901559a9d0289bf44a852ff92212a4e6f38f2f8d68734c49efd366586cdb518ef24b

  • SSDEEP

    24576:u95sjkZcf3Eo63487oYbJd5A8uvKzS4MvKCINHPf4xVE4:ssR3EoxYBbSDvKz0vKCINvgxVE4

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 48 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a57dc33e1dd8a6ac06309534326430a.exe
    "C:\Users\Admin\AppData\Local\Temp\4a57dc33e1dd8a6ac06309534326430a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1088
    • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\dlhelpdl.exe
      C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\dlhelpdl.exe ~URL Parts Error~~~~URL Parts Error~URL Parts Error~~#~2921~2951~~URL Parts Error~~SendRequest Error~DE-9D-3A-49-EF-0E~#~~SendRequest Error~~~~
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 1584
      2⤵
      • Program crash
      PID:4192
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1088 -ip 1088
    1⤵
      PID:2648

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\GetVersion.dll

            Filesize

            6KB

            MD5

            5264f7d6d89d1dc04955cfb391798446

            SHA1

            211d8d3e7c2b2f57f54a11cb8bc4fa536df08acc

            SHA256

            7d76c7dd8f7cd5a87e0118dacb434db3971a049501e22a5f4b947154621ab3d4

            SHA512

            80d27ee2f87e2822bd5c8c55cc3d1e49beebb86d8557c92b52b7cbea9f27882d80e59eefa25e414eecee268a9a6193b6b50b748de33c778b007cde24ef8bcfb7

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\GetVersion.dll

            Filesize

            1KB

            MD5

            ad41d2238c7c9c2c0deb3d4a03ba18fd

            SHA1

            ec3c3dc197d8fc2e73afee1a07b52518b31109ad

            SHA256

            1e8f08bb409b72ec8a0f0f954821d1aa61eb0e603de1cbe4885a40d8a13a768c

            SHA512

            bfb298bbbd9d9a1540c61da6560d0b9d8cdaca800054908f41296e1e9ee947f7c498bf61e6cdf7725f0e5ab687569509d7fbc2bc9ac256993a021e9d513ab652

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\Math.dll

            Filesize

            66KB

            MD5

            b140459077c7c39be4bef249c2f84535

            SHA1

            c56498241c2ddafb01961596da16d08d1b11cd35

            SHA256

            0598f7d83db44929b7170c1285457b52b4281185f63ced102e709bf065f10d67

            SHA512

            fbcb19a951d96a216d73b6b3e005338bbb6e11332c6cc8c3f179ccd420b4db0e5682dc4245bd120dcb67bc70960eab368e74c68c7c165a485a12a7d0d8a00328

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\UserInfo.dll

            Filesize

            4KB

            MD5

            7579ade7ae1747a31960a228ce02e666

            SHA1

            8ec8571a296737e819dcf86353a43fcf8ec63351

            SHA256

            564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

            SHA512

            a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\dlhelpdl.exe

            Filesize

            62KB

            MD5

            9797ba82ab34a1c544ebee45d1edf711

            SHA1

            44754625d99b6896e1b9f01d30537f6274730311

            SHA256

            66f806a7c68fa5902a0a7bb20761520350dcfb0ab59c4a2644249d2363bd1070

            SHA512

            1d9ac6cb047c7e580d1a7b2663a09ce6bad50612750edc371374fc241bbfafad03b677b0ad9bc67be89a6c5ea7842202328381c6d815a63ba75c05d89d8b3340

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\dlhelpdl.exe

            Filesize

            60KB

            MD5

            9fb4d5536d6300d8d8caddfa4132e801

            SHA1

            a44f3dfb6ea79cef9d91db78fe2a17485998c408

            SHA256

            5585aeca4cbb3882a0deb6431c70aae22af5fe7552ea07088733d1bf8109cb03

            SHA512

            998abf434310d041bb3fb7bcd9fa6c429f9271b741806be5a247b39dc0632e293a8bae5d0911ccb1a0d90d6b02a783571917110d50cd1f00c1425e2c9c98d1bd

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\intlib.dll

            Filesize

            1KB

            MD5

            6789f6f686109a31e8282a64d4710061

            SHA1

            d29e63d0c01714d860f59f71c2ad72f2d6aba265

            SHA256

            5e56b042927d13266a4d4bcfc458d29094ea86c771048be81cd4f63e6672a3fd

            SHA512

            bebde4b8510a66d83d0a2ba7cc90371202fc824c37f72101751640031dc01074d98322230efc4c8815f465db6cd5fea62efdd4323c6c168c4c29a7676c4375f1

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\intlib.dll

            Filesize

            5KB

            MD5

            0e894133b6e53a20fec5cafda17a6610

            SHA1

            7812be995cbc449d622466d96bcc1e4145c02201

            SHA256

            b7240dc8ded4da1ce7c13609c4fc6819d2545ddd2ea02e6e43e148ee64b59bd4

            SHA512

            a04468a592cb0636cc41f2d2a15b92db66a06d67e14ff087c0ca24bf641b68718b105cc2c6b783ced4c346a5a1bb584c1bd1866bdd5b0cad8d9fb27b1a2f14fb

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\intlib.dll

            Filesize

            24KB

            MD5

            1efbbf5a54eb145a1a422046fd8dfb2c

            SHA1

            ec4efd0a95bb72fd4cf47423647e33e5a3fddf26

            SHA256

            983859570099b941c19d5eb9755eda19dd21f63e8ccad70f6e93f055c329d341

            SHA512

            7fdeba8c961f3507162eb59fb8b9b934812d449cc85c924f61722a099618d771fed91cfb3944e10479280b73648a9a5cbb23482d7b7f8bfb130f23e8fd6c15fb

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\nsDialogs.dll

            Filesize

            9KB

            MD5

            c10e04dd4ad4277d5adc951bb331c777

            SHA1

            b1e30808198a3ae6d6d1cca62df8893dc2a7ad43

            SHA256

            e31ad6c6e82e603378cb6b80e67d0e0dcd9cf384e1199ac5a65cb4935680021a

            SHA512

            853a5564bf751d40484ea482444c6958457cb4a17fb973cf870f03f201b8b2643be41bccde00f6b2026dc0c3d113e6481b0dc4c7b0f3ae7966d38c92c6b5862e

          • C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\registry.dll

            Filesize

            16KB

            MD5

            24a7a119e289f1b5b69f3d6cf258db7c

            SHA1

            fec84298f9819adf155fcf4e9e57dd402636c177

            SHA256

            ae53f8e00574a87dd243fdf344141417cfe2af318c6c5e363a030d727a6c75d1

            SHA512

            fdbbedcc877bf020a5965f6ba8586ade48cfbe03ac0af8190a8acf077fb294ffd6b5a7ae49870bff8cacd9e33d591be63b5b3d5c2e432c640212bdcd0c602861

          • memory/1088-71-0x0000000002B00000-0x0000000002B1A000-memory.dmp

            Filesize

            104KB