Resubmissions

10-04-2024 02:55

240410-dektcsff5x 10

10-04-2024 02:54

240410-dd6z7scc89 10

10-04-2024 02:54

240410-dd6pfacc88 10

10-04-2024 02:54

240410-dd53xacc87 10

09-09-2023 16:01

230909-tgqqdscd3z 7

Analysis

  • max time kernel
    119s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    09-09-2023 16:01

General

  • Target

    dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe

  • Size

    203KB

  • MD5

    661cdb95fe5810f365ddb936ea8f3432

  • SHA1

    6210c0691ee20e61dc9a9da1a371d561cd850774

  • SHA256

    dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236a

  • SHA512

    aa25009dfbddfb300c14ab65c9eeb68aa785a54d40fa28a684275b9f506cc6fd337842cf42c54bcff79018241c9a0ac606ad4ebf614a2a355aed7e6dbe70c41d

  • SSDEEP

    6144:8N0J0dLFzW/wKWsBGKqkv07bKXZSgsBuQdwLhXC1:8NDpzGAsgL+ZSwQdwLhXC1

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && schtasks /create /tn "dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe" /rl HIGHEST /f && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe" &&START "" "C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:2068
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:2320
        • C:\Windows\system32\PING.EXE
          ping 127.0.0.1
          3⤵
          • Runs ping.exe
          PID:2328
        • C:\Windows\system32\schtasks.exe
          schtasks /create /tn "dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe" /rl HIGHEST /f
          3⤵
          • Creates scheduled task(s)
          PID:2788
        • C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe
          "C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2972
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 2972 -s 3036
            4⤵
            • Program crash
            PID:2932
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {5888D063-B761-4CB2-B085-97E7B065672E} S-1-5-21-686452656-3203474025-4140627569-1000:UUVOHKNL\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2988
      • C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe
        C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe
        2⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:2288
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 2288 -s 2928
          3⤵
          • Program crash
          PID:788

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

      Filesize

      344B

      MD5

      c85a8fc9f7667256a8ad99392a873407

      SHA1

      fee923f6f6ec8bab2156a078993d326d4a206388

      SHA256

      93e6017845bb8ce0cd470d28c9744fc7ebaffd479e7833d2847fee0f1161ff34

      SHA512

      e8471cbe49c77bc6cf8e5a7737ba5a3a8d75ba69a52d1442fd9f7ce4ce49f35875ffd7783b6d69837a16444e52ac28d65c912a7d409dc93b706973a3a160a533

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

      Filesize

      344B

      MD5

      8291344e1276963a80903f52db455316

      SHA1

      7e70058ed6c620f6d8a145584883bd82524719fe

      SHA256

      eb703c6027d7a58aabaf0afafad8634dfe80c9e31c729eff54194ef1c078c430

      SHA512

      a628ab6ef38cf7de9936411dee32b49e5c43a09e09de0334d2d9d6a8d569c576630fe1bce09569c82828358cbd82b3489933973ecdd04b9ee936eb7ff2b39558

    • C:\Users\Admin\AppData\Local\9krryil1hy\port.dat

      Filesize

      4B

      MD5

      769675d7c11f336ae6573e7e533570ec

      SHA1

      71c0186acf3f622ff5df4a828f0adc5b2e9ba9f4

      SHA256

      41b241da3723567782becdfe87b2425ac6bcdf92ff2d2025de42067af61b9096

      SHA512

      fe6eb7ef681a408cdb8248af6c4ddc2c1431346a621a98da92ad5529ce2a713d15b108e25aaf7b07c7d5488a1ab2acddd6a594a075794490d166bfb98098f94a

    • C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe

      Filesize

      203KB

      MD5

      661cdb95fe5810f365ddb936ea8f3432

      SHA1

      6210c0691ee20e61dc9a9da1a371d561cd850774

      SHA256

      dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236a

      SHA512

      aa25009dfbddfb300c14ab65c9eeb68aa785a54d40fa28a684275b9f506cc6fd337842cf42c54bcff79018241c9a0ac606ad4ebf614a2a355aed7e6dbe70c41d

    • C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe

      Filesize

      203KB

      MD5

      661cdb95fe5810f365ddb936ea8f3432

      SHA1

      6210c0691ee20e61dc9a9da1a371d561cd850774

      SHA256

      dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236a

      SHA512

      aa25009dfbddfb300c14ab65c9eeb68aa785a54d40fa28a684275b9f506cc6fd337842cf42c54bcff79018241c9a0ac606ad4ebf614a2a355aed7e6dbe70c41d

    • C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe

      Filesize

      203KB

      MD5

      661cdb95fe5810f365ddb936ea8f3432

      SHA1

      6210c0691ee20e61dc9a9da1a371d561cd850774

      SHA256

      dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236a

      SHA512

      aa25009dfbddfb300c14ab65c9eeb68aa785a54d40fa28a684275b9f506cc6fd337842cf42c54bcff79018241c9a0ac606ad4ebf614a2a355aed7e6dbe70c41d

    • C:\Users\Admin\AppData\Local\Temp\Cab6AA8.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\Tar6B47.tmp

      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • C:\Users\Admin\AppData\Local\Temp\installUtilLog.txt

      Filesize

      82B

      MD5

      1d2c0986ba3c3af924ad4b8776a45190

      SHA1

      e4199810598c592fb4304eb37cf90d2ce2065a11

      SHA256

      8f8cc850ea7e227ba100ad943c4c9000857e39d66a0aa6a245f599e6868d04c2

      SHA512

      275f4de2999bc947be2a179aab2ed6e33d7591d3464d3ba43d3ca1b6fc0ada3aae2090f39dc3620bfcfa57824e26aba7b401145137f87115bbd4c3589a291524

    • memory/1916-5-0x000007FEF5750000-0x000007FEF613C000-memory.dmp

      Filesize

      9.9MB

    • memory/1916-0-0x00000000010A0000-0x00000000010D8000-memory.dmp

      Filesize

      224KB

    • memory/1916-1-0x000007FEF5750000-0x000007FEF613C000-memory.dmp

      Filesize

      9.9MB

    • memory/1916-2-0x000000001B260000-0x000000001B2E0000-memory.dmp

      Filesize

      512KB

    • memory/2288-90-0x000000001ABC0000-0x000000001AC40000-memory.dmp

      Filesize

      512KB

    • memory/2288-89-0x000007FEF4D60000-0x000007FEF574C000-memory.dmp

      Filesize

      9.9MB

    • memory/2288-112-0x000007FEF4D60000-0x000007FEF574C000-memory.dmp

      Filesize

      9.9MB

    • memory/2972-87-0x000000001A980000-0x000000001AA00000-memory.dmp

      Filesize

      512KB

    • memory/2972-86-0x000007FEF4D60000-0x000007FEF574C000-memory.dmp

      Filesize

      9.9MB

    • memory/2972-11-0x000000001A980000-0x000000001AA00000-memory.dmp

      Filesize

      512KB

    • memory/2972-9-0x00000000003F0000-0x0000000000428000-memory.dmp

      Filesize

      224KB

    • memory/2972-10-0x000007FEF4D60000-0x000007FEF574C000-memory.dmp

      Filesize

      9.9MB