Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-02-2024 05:48

General

  • Target

    e64a5a0e34ecb51c2c40cb84016354e096b7c5bc34f5a841d685e94844644ad6.exe

  • Size

    814KB

  • MD5

    8fc83cdc44075773ee401f010d2443b0

  • SHA1

    96cd91bb463dcb0f7b56e94bf2cb15d7dc8f63b6

  • SHA256

    220977b28fc847b8a2d7c65d3d19a3859e3e62dc5e19edaf4909965516a91694

  • SHA512

    12a5cf0ee3c995faf09f821e4f4db1bf4f50c5ead57e72bf6e518b38c4d14a020724698e0930ea515ddeb810464ab9c9a616e3c8cd0a7e82ce64ab58a614f597

  • SSDEEP

    12288:mj6mRlmDKClMfkrPEBuGKw3f+s2geR3VJ6wGllh5VelrQTydKp:m2a4KCycrPQIo+aePgDalrQTl

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kmge

Decoy

jia0752d.com

cq0jt.sbs

whimsicalweddingrentals.com

meetsex-here.life

hhe-crv220.com

bedbillionaire.com

soycmo.com

mrawkward.xyz

11ramshornroad.com

motoyonaturals.com

thischicloves.com

gacorbet.pro

ihsanid.com

pancaketurner.com

santanarstore.com

cr3dtv.com

negotools.com

landfillequip.com

sejasuapropriachefe.com

diamant-verkopen.store

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook payload 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 63 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e64a5a0e34ecb51c2c40cb84016354e096b7c5bc34f5a841d685e94844644ad6.exe
    "C:\Users\Admin\AppData\Local\Temp\e64a5a0e34ecb51c2c40cb84016354e096b7c5bc34f5a841d685e94844644ad6.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4492
    • C:\Users\Admin\AppData\Local\Temp\skype.exe
      "C:\Users\Admin\AppData\Local\Temp\skype.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2696
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c ping 127.0.0.1 -n 11 > nul && copy "C:\Users\Admin\AppData\Local\Temp\skype.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\skype\skype.exe" && ping 127.0.0.1 -n 11 > nul && "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\skype\skype.exe"
        3⤵
        • Drops startup file
        • Suspicious use of WriteProcessMemory
        PID:3424
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 11
          4⤵
          • Runs ping.exe
          PID:3884
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 11
          4⤵
          • Runs ping.exe
          PID:3724
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\skype\skype.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\skype\skype.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4816
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
            5⤵
              PID:4300
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
              5⤵
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of AdjustPrivilegeToken
              PID:1900
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3456
      • C:\Windows\SysWOW64\control.exe
        "C:\Windows\SysWOW64\control.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Modifies Internet Explorer settings
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4420
        • C:\Windows\SysWOW64\cmd.exe
          /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
          3⤵
            PID:4896
          • C:\Program Files\Mozilla Firefox\Firefox.exe
            "C:\Program Files\Mozilla Firefox\Firefox.exe"
            3⤵
              PID:1960

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Defense Evasion

        Modify Registry

        1
        T1112

        Credential Access

        Unsecured Credentials

        1
        T1552

        Credentials In Files

        1
        T1552.001

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Remote System Discovery

        1
        T1018

        Collection

        Data from Local System

        1
        T1005

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\skype.exe.log
          Filesize

          1KB

          MD5

          b18bd43958115cd3b7b22e45103c10c5

          SHA1

          ff9fd020e81b03fd84c878ea24f27e8b41389435

          SHA256

          67cb85ee85191bd3203adf49b1d0199867ac66f0b114a09a8392d5d5b1dd36d4

          SHA512

          5101dd146815472c878a05cd345eae6a7f730c2059a368c56673e9c3ec47696e788162f15390b54b4e1d066fd56cae56fc6e8bf7ea6e5af250aaf1e8c8e68c00

        • C:\Users\Admin\AppData\Local\Temp\DB1
          Filesize

          46KB

          MD5

          02d2c46697e3714e49f46b680b9a6b83

          SHA1

          84f98b56d49f01e9b6b76a4e21accf64fd319140

          SHA256

          522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

          SHA512

          60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

        • C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logim.jpeg
          Filesize

          75KB

          MD5

          20e5c142fc1b1cbd25f252d9010ca228

          SHA1

          2d01a8311b1813e1ed9b07aa60d9d997bcf2bed9

          SHA256

          b5eac7bc81b4fdae6f8bccdc895115a1638813c5f35886c5ec96a6114897c110

          SHA512

          0baf4cd02d37b9a4693f8543f7d4be8424a8d169216a0898fea7fcc73d94a2eabf5b52ad7b18bdd790583a3769fc6f1f531500cb84510a32376b1326843559cb

        • C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrf.ini
          Filesize

          40B

          MD5

          2f245469795b865bdd1b956c23d7893d

          SHA1

          6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

          SHA256

          1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

          SHA512

          909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

        • C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrg.ini
          Filesize

          38B

          MD5

          4aadf49fed30e4c9b3fe4a3dd6445ebe

          SHA1

          1e332822167c6f351b99615eada2c30a538ff037

          SHA256

          75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

          SHA512

          eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

        • C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logri.ini
          Filesize

          40B

          MD5

          d63a82e5d81e02e399090af26db0b9cb

          SHA1

          91d0014c8f54743bba141fd60c9d963f869d76c9

          SHA256

          eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

          SHA512

          38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

        • C:\Users\Admin\AppData\Roaming\LK3BNUQ2\LK3logrv.ini
          Filesize

          872B

          MD5

          bbc41c78bae6c71e63cb544a6a284d94

          SHA1

          33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

          SHA256

          ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

          SHA512

          0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\skype\skype.exe
          Filesize

          814KB

          MD5

          8fc83cdc44075773ee401f010d2443b0

          SHA1

          96cd91bb463dcb0f7b56e94bf2cb15d7dc8f63b6

          SHA256

          220977b28fc847b8a2d7c65d3d19a3859e3e62dc5e19edaf4909965516a91694

          SHA512

          12a5cf0ee3c995faf09f821e4f4db1bf4f50c5ead57e72bf6e518b38c4d14a020724698e0930ea515ddeb810464ab9c9a616e3c8cd0a7e82ce64ab58a614f597

        • memory/1900-36-0x0000000000400000-0x000000000042F000-memory.dmp
          Filesize

          188KB

        • memory/1900-37-0x0000000001BE0000-0x0000000001BF4000-memory.dmp
          Filesize

          80KB

        • memory/1900-34-0x0000000001750000-0x0000000001A9A000-memory.dmp
          Filesize

          3.3MB

        • memory/1900-32-0x0000000000400000-0x000000000042F000-memory.dmp
          Filesize

          188KB

        • memory/2696-14-0x0000000005060000-0x0000000005070000-memory.dmp
          Filesize

          64KB

        • memory/2696-11-0x0000000074920000-0x00000000750D0000-memory.dmp
          Filesize

          7.7MB

        • memory/2696-16-0x0000000074920000-0x00000000750D0000-memory.dmp
          Filesize

          7.7MB

        • memory/2696-13-0x0000000005060000-0x0000000005070000-memory.dmp
          Filesize

          64KB

        • memory/3456-60-0x0000000008220000-0x0000000008331000-memory.dmp
          Filesize

          1.1MB

        • memory/3456-65-0x0000000008340000-0x00000000084A1000-memory.dmp
          Filesize

          1.4MB

        • memory/3456-38-0x0000000008220000-0x0000000008331000-memory.dmp
          Filesize

          1.1MB

        • memory/3456-66-0x0000000008340000-0x00000000084A1000-memory.dmp
          Filesize

          1.4MB

        • memory/3456-74-0x0000000008340000-0x00000000084A1000-memory.dmp
          Filesize

          1.4MB

        • memory/4420-64-0x00000000023D0000-0x0000000002463000-memory.dmp
          Filesize

          588KB

        • memory/4420-58-0x00000000023D0000-0x0000000002463000-memory.dmp
          Filesize

          588KB

        • memory/4420-43-0x0000000000690000-0x00000000006BF000-memory.dmp
          Filesize

          188KB

        • memory/4420-42-0x0000000002590000-0x00000000028DA000-memory.dmp
          Filesize

          3.3MB

        • memory/4420-41-0x0000000000690000-0x00000000006BF000-memory.dmp
          Filesize

          188KB

        • memory/4420-40-0x0000000000950000-0x0000000000977000-memory.dmp
          Filesize

          156KB

        • memory/4420-39-0x0000000000950000-0x0000000000977000-memory.dmp
          Filesize

          156KB

        • memory/4492-9-0x0000000007B90000-0x00000000080BC000-memory.dmp
          Filesize

          5.2MB

        • memory/4492-5-0x0000000005790000-0x00000000057A0000-memory.dmp
          Filesize

          64KB

        • memory/4492-7-0x0000000005A40000-0x0000000005A4A000-memory.dmp
          Filesize

          40KB

        • memory/4492-0-0x0000000000E50000-0x0000000000F22000-memory.dmp
          Filesize

          840KB

        • memory/4492-1-0x0000000074920000-0x00000000750D0000-memory.dmp
          Filesize

          7.7MB

        • memory/4492-2-0x0000000005400000-0x000000000549C000-memory.dmp
          Filesize

          624KB

        • memory/4492-3-0x0000000005A50000-0x0000000005FF4000-memory.dmp
          Filesize

          5.6MB

        • memory/4492-4-0x0000000005540000-0x00000000055D2000-memory.dmp
          Filesize

          584KB

        • memory/4492-6-0x00000000058A0000-0x00000000058E4000-memory.dmp
          Filesize

          272KB

        • memory/4492-12-0x0000000074920000-0x00000000750D0000-memory.dmp
          Filesize

          7.7MB

        • memory/4816-27-0x00000000068E0000-0x00000000068FA000-memory.dmp
          Filesize

          104KB

        • memory/4816-25-0x0000000004EE0000-0x0000000004EF0000-memory.dmp
          Filesize

          64KB

        • memory/4816-24-0x00000000748F0000-0x00000000750A0000-memory.dmp
          Filesize

          7.7MB

        • memory/4816-23-0x0000000000DD0000-0x0000000000EA2000-memory.dmp
          Filesize

          840KB

        • memory/4816-26-0x0000000004EE0000-0x0000000004EF0000-memory.dmp
          Filesize

          64KB

        • memory/4816-28-0x0000000006880000-0x0000000006886000-memory.dmp
          Filesize

          24KB

        • memory/4816-29-0x00000000748F0000-0x00000000750A0000-memory.dmp
          Filesize

          7.7MB

        • memory/4816-30-0x0000000004EE0000-0x0000000004EF0000-memory.dmp
          Filesize

          64KB

        • memory/4816-31-0x0000000004EE0000-0x0000000004EF0000-memory.dmp
          Filesize

          64KB

        • memory/4816-33-0x00000000748F0000-0x00000000750A0000-memory.dmp
          Filesize

          7.7MB