Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2023, 10:45

General

  • Target

    tmp.exe

  • Size

    228KB

  • MD5

    8b37c8c2c2beefd373d98526c700109a

  • SHA1

    e5acac1ffd8ced2e30313a0e93129524dd91c952

  • SHA256

    64a8c9065258f70f7567b5d52da2738c6e63580cc64a95273b454f45addf50f5

  • SHA512

    f41ff902b633f2119c584290f3089922a828d546b1a484659225d2426c70f961993e305c911896d1abf738d87bfcd31dc51d18b1d9e692099d74644e6b2963eb

  • SSDEEP

    6144:/Ya6qkxtNGqZnjsvzTXRDK6wgQ7js0YXQzf8PWFJMNXYSZm3k:/YUkEqZQH9KJgis0uRYSYk

Malware Config

Extracted

Family

formbook

Campaign

u8ow

Decoy

uzhDDUNgg10rOh8rkUMGYiLuNnRWl9gwMQ==

bfkA4IUaSgYi7IA=

ezX5yHeR21O3h2RCgQ==

x3E4ntHeLMGQm0kdTi6PJtjOVS6Em8UaKA==

xJuAYwcZLAfqrVazWjvkirgFxDSf

qrGugLdannLYegX5dCtFMA==

i61nMddueAYi7IA=

RoNMKNhtdDWpeiYoaB37TPiHTLo=

RFj3UHHrDtAktSZhYku36opnsaMbNA==

lx0g+6RPl4jwwNPRPuTD

MyEQ4oGk6vXrMM4V

0IVWH0rfKe1J4nn6J9XB

SYVlN3Zrnq2OaWpDiQ==

fNa0jy3P8KQK25rpmwqd0t8=

UZuSZpW+9ffX9KXzmgqd0t8=

Vxf85YCWvYNZjkcDdCtFMA==

0gG1EzLP7/DrMM4V

WExRGVAEE6YS5tJkTxMhR636+A==

6Tv7U4QdURt1KUI+gw==

ooR7RXgsXPtaEutnaQ3efjIXmfJePavzIA==

Signatures

  • Formbook

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

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader payload 4 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 6 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1524
      • C:\Users\Admin\AppData\Local\Temp\rlgffyq.exe
        "C:\Users\Admin\AppData\Local\Temp\rlgffyq.exe" C:\Users\Admin\AppData\Local\Temp\mewbf.gv
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1472
        • C:\Users\Admin\AppData\Local\Temp\rlgffyq.exe
          "C:\Users\Admin\AppData\Local\Temp\rlgffyq.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:1112
          • C:\Windows\SysWOW64\netsh.exe
            "C:\Windows\SysWOW64\netsh.exe"
            5⤵
            • Adds policy Run key to start application
            • Suspicious use of SetThreadContext
            • Drops file in Program Files directory
            • Modifies Internet Explorer settings
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:844
            • C:\Windows\SysWOW64\cmd.exe
              /c del "C:\Users\Admin\AppData\Local\Temp\rlgffyq.exe"
              6⤵
                PID:1320
              • C:\Program Files\Mozilla Firefox\Firefox.exe
                "C:\Program Files\Mozilla Firefox\Firefox.exe"
                6⤵
                  PID:552
        • C:\Program Files (x86)\Gmtqhbpj\help6ldhghf.exe
          "C:\Program Files (x86)\Gmtqhbpj\help6ldhghf.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1636
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1636 -s 124
            3⤵
            • Loads dropped DLL
            • Program crash
            PID:1804

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Program Files (x86)\Gmtqhbpj\help6ldhghf.exe

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

            • C:\Program Files (x86)\Gmtqhbpj\help6ldhghf.exe

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

            • C:\Users\Admin\AppData\Local\Temp\mewbf.gv

              Filesize

              5KB

              MD5

              3c244d8bf6174dbc41727abc9ece7acf

              SHA1

              797f05cbef6c579880841488a2ef85a8064db9fa

              SHA256

              fa3e5994908aed3ee28a15d4f45f396603fd9026db11a342a90c590f5d48a85b

              SHA512

              93030940192dcbe0e83895c89de7d57998199fdd6dc71d4dd76d62b2fbadff9aa2a43aea5797bc3d1b17afeda64104a202bde6255647f04a6cb42b8f5282b253

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

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

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

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

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

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

            • C:\Users\Admin\AppData\Local\Temp\zkoclolbinv.obd

              Filesize

              196KB

              MD5

              7ae7dcc7e63caee1fd3da08154fa103d

              SHA1

              c2c152ce21732ad9be3c06d28de2aa28340a095a

              SHA256

              5395f4b1e2cdd4ab2cc06957df8e8f4264cfea3fbd7e6970ab9e9a6f0ff2d58b

              SHA512

              c707b92084a8bde6c11bfa36519389c017cda33b8e1223a116e3055549d7c713f05d16113f739e466c9d3d03dbc8b32058eee43c3caace8e8a6ab4adfb6c232b

            • \Program Files (x86)\Gmtqhbpj\help6ldhghf.exe

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

            • \Program Files (x86)\Gmtqhbpj\help6ldhghf.exe

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

            • \Program Files (x86)\Gmtqhbpj\help6ldhghf.exe

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

            • \Program Files (x86)\Gmtqhbpj\help6ldhghf.exe

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

            • \Users\Admin\AppData\Local\Temp\rlgffyq.exe

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

            • \Users\Admin\AppData\Local\Temp\rlgffyq.exe

              Filesize

              6KB

              MD5

              44a7bf46a9c01d3e0486c93767b6cc0f

              SHA1

              3cc13566319f0d73f4931a101799862907cd361d

              SHA256

              b016acfefe7a25f43ec9f9e89bff4d03ea9470941e283b10599acb6769cf76b9

              SHA512

              e36053cba4c316a26a72857959c12db9813f1c1187c03d2ecfb545fb54fde6286302054b353a6aead3bb15429ffb6bc2d1bee68cb65cf8df7c0994ff3ffe0602

            • memory/844-78-0x00000000001C0000-0x00000000001EC000-memory.dmp

              Filesize

              176KB

            • memory/844-73-0x00000000009A0000-0x00000000009BB000-memory.dmp

              Filesize

              108KB

            • memory/844-76-0x0000000002260000-0x00000000022F0000-memory.dmp

              Filesize

              576KB

            • memory/844-75-0x0000000001F50000-0x0000000002253000-memory.dmp

              Filesize

              3.0MB

            • memory/844-74-0x00000000001C0000-0x00000000001EC000-memory.dmp

              Filesize

              176KB

            • memory/1112-66-0x00000000002C0000-0x00000000002D1000-memory.dmp

              Filesize

              68KB

            • memory/1112-68-0x0000000000330000-0x0000000000341000-memory.dmp

              Filesize

              68KB

            • memory/1112-71-0x0000000000400000-0x000000000042C000-memory.dmp

              Filesize

              176KB

            • memory/1112-64-0x0000000000400000-0x000000000042C000-memory.dmp

              Filesize

              176KB

            • memory/1112-65-0x0000000000850000-0x0000000000B53000-memory.dmp

              Filesize

              3.0MB

            • memory/1360-77-0x0000000006430000-0x000000000651C000-memory.dmp

              Filesize

              944KB

            • memory/1360-67-0x0000000004920000-0x0000000004A64000-memory.dmp

              Filesize

              1.3MB

            • memory/1360-79-0x0000000006430000-0x000000000651C000-memory.dmp

              Filesize

              944KB

            • memory/1360-69-0x0000000004D40000-0x0000000004DF1000-memory.dmp

              Filesize

              708KB

            • memory/1524-54-0x0000000075B51000-0x0000000075B53000-memory.dmp

              Filesize

              8KB