Resubmissions

06-12-2022 13:34

221206-qvapjscc96 10

06-12-2022 13:32

221206-qtc4aacb99 10

Analysis

  • max time kernel
    690s
  • max time network
    702s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2022 13:34

General

  • Target

    altek inquiry_06122022.exe

  • Size

    240KB

  • MD5

    57e28993ff25e296f1671cf08842bc72

  • SHA1

    789a67ffbbfbdbd722371580a26f6bb39f86124f

  • SHA256

    ef183500f8b2a320013adb7f7594aaf7562d43cfd17026f8c7a4cd26a243965a

  • SHA512

    76820c62bb5f5ce2cbfcf98aaa8b6f2d1c3acb28aeb972b7039ce63e4bb0072867425477bf80ae09c4a11c1c14257d94a40d666aec782f01c4781ec1235d046c

  • SSDEEP

    6144:xBnYpliv3Ux2/jeM5C4fR99KWb8YPo9hUCCkPBByiL:UpEv3yxKFPBkP3yiL

Malware Config

Extracted

Family

formbook

Campaign

m5oe

Decoy

HdR8hG6r12hBYuHY4zv6YeeFPQ==

tD1V9gswYvgQXEGd

1xKtJ1LdqRYMRMC84U1A

MbhjiWb7Lz8z7KIWl3UyUIJwA6Tb

joVB5Xggy2RtE+odsZg=

TrduAIay6Y3SvoIK20xI

pSna7LOsXXwXT/zz3Iow4g==

QnthmO4Qst5gC3sDoA==

eAirzOOgO7SOCenz3Iow4g==

xg0uSbfLTg==

YWQXwyGRzPEHzGrDFE8CBSE=

ujLnfuXoH9dbgHIK20xI

291v0XsGFrYQXEGd

MRvTd/qMuaHpjCM=

X131fLC6VWX4MsvCb2IPjIfq8wlksWfg

Y9Bur8DbgqFt/Yni86MMCCE=

q6RTBmJkmy5pWTmmCCrvmuCDPw==

mQS26DojT+EQXEGd

sjHQ+Kav2Wx9FeodsZg=

JA24UKnTA5re1LhcQaVo/w==

Signatures

  • Formbook

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

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2640
    • C:\Users\Admin\AppData\Local\Temp\altek inquiry_06122022.exe
      "C:\Users\Admin\AppData\Local\Temp\altek inquiry_06122022.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4904
      • C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe
        "C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe" C:\Users\Admin\AppData\Local\Temp\ewfvsnuhhs.yk
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:3720
        • C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe
          "C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe"
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4544
          • C:\Windows\SysWOW64\netsh.exe
            "C:\Windows\SysWOW64\netsh.exe"
            5⤵
            • Suspicious use of SetThreadContext
            • Modifies Internet Explorer settings
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2624
            • C:\Program Files\Mozilla Firefox\Firefox.exe
              "C:\Program Files\Mozilla Firefox\Firefox.exe"
              6⤵
                PID:3948

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ewfvsnuhhs.yk

      Filesize

      5KB

      MD5

      cc9e28dede16cfda70a7f5c2286ac096

      SHA1

      e21dfb2a1424f3907451117e65dc5feae3665fb0

      SHA256

      a96297e01a5e02d8e01ac0ffde09e15ee37ef5a8947085e4e37aeead7912fb95

      SHA512

      4e11dacf0073e7b150e58a6110c7ea67be7d15a682c4817de7ba7193fbeda0cb8f875cd4f3bead163e955cef00964b3ee1c25f6f4dff26ad268202d8f1771df3

    • C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe

      Filesize

      13KB

      MD5

      bd75ead41fcfd1e05e01dccbab8201ee

      SHA1

      0d8e4692652a07ba557ac05cf7981d6655054a45

      SHA256

      949fc794150daaf10537cc5b230097b0e9f384e3722486b9a6f71a2f6e4bdb34

      SHA512

      fd9cbdc659a0d700f372ea88b4ce5da9fa5de56229848a9eadee139f75677ab38b0cc6a7840ff20310d3e9cde3e8a122c940063ed58e797cb48a3b689cc826de

    • C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe

      Filesize

      13KB

      MD5

      bd75ead41fcfd1e05e01dccbab8201ee

      SHA1

      0d8e4692652a07ba557ac05cf7981d6655054a45

      SHA256

      949fc794150daaf10537cc5b230097b0e9f384e3722486b9a6f71a2f6e4bdb34

      SHA512

      fd9cbdc659a0d700f372ea88b4ce5da9fa5de56229848a9eadee139f75677ab38b0cc6a7840ff20310d3e9cde3e8a122c940063ed58e797cb48a3b689cc826de

    • C:\Users\Admin\AppData\Local\Temp\gnfyjw.exe

      Filesize

      13KB

      MD5

      bd75ead41fcfd1e05e01dccbab8201ee

      SHA1

      0d8e4692652a07ba557ac05cf7981d6655054a45

      SHA256

      949fc794150daaf10537cc5b230097b0e9f384e3722486b9a6f71a2f6e4bdb34

      SHA512

      fd9cbdc659a0d700f372ea88b4ce5da9fa5de56229848a9eadee139f75677ab38b0cc6a7840ff20310d3e9cde3e8a122c940063ed58e797cb48a3b689cc826de

    • C:\Users\Admin\AppData\Local\Temp\xaulttvxgxs.z

      Filesize

      185KB

      MD5

      2b417f4ae947c108780502ee6d73b7ca

      SHA1

      0e6440e5b52cc7190af856e4784b7f0bdf6a0963

      SHA256

      ad93f99bbbeebd3a9d196ae6c9457b9faec9986e268c0341a0720764902e55e9

      SHA512

      29e8360bdb883416813d1305af43424f81864eceb770f7a7ece73de068924684395b09867db910521b25b3401b25cd3c204295312174e7571c9eda820473e02e

    • memory/2624-148-0x0000000000000000-mapping.dmp

    • memory/2624-155-0x0000000000D60000-0x0000000000D8D000-memory.dmp

      Filesize

      180KB

    • memory/2624-154-0x00000000015D0000-0x000000000165F000-memory.dmp

      Filesize

      572KB

    • memory/2624-153-0x0000000001B20000-0x0000000001E6A000-memory.dmp

      Filesize

      3.3MB

    • memory/2624-152-0x0000000000D60000-0x0000000000D8D000-memory.dmp

      Filesize

      180KB

    • memory/2624-151-0x0000000001030000-0x000000000104E000-memory.dmp

      Filesize

      120KB

    • memory/2640-157-0x0000000003130000-0x00000000031F6000-memory.dmp

      Filesize

      792KB

    • memory/2640-156-0x0000000003130000-0x00000000031F6000-memory.dmp

      Filesize

      792KB

    • memory/2640-143-0x0000000007BF0000-0x0000000007CFC000-memory.dmp

      Filesize

      1.0MB

    • memory/2640-147-0x0000000008130000-0x000000000820F000-memory.dmp

      Filesize

      892KB

    • memory/3720-132-0x0000000000000000-mapping.dmp

    • memory/4544-144-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/4544-149-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/4544-150-0x0000000000401000-0x000000000042F000-memory.dmp

      Filesize

      184KB

    • memory/4544-146-0x00000000015B0000-0x00000000015C0000-memory.dmp

      Filesize

      64KB

    • memory/4544-145-0x0000000000401000-0x000000000042F000-memory.dmp

      Filesize

      184KB

    • memory/4544-142-0x0000000000D80000-0x0000000000D90000-memory.dmp

      Filesize

      64KB

    • memory/4544-141-0x0000000001600000-0x000000000194A000-memory.dmp

      Filesize

      3.3MB

    • memory/4544-140-0x0000000000401000-0x000000000042F000-memory.dmp

      Filesize

      184KB

    • memory/4544-139-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/4544-137-0x0000000000000000-mapping.dmp