Analysis

  • max time kernel
    151s
  • max time network
    146s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    03-05-2021 06:03

General

  • Target

    SWIT BANK PAPER PAYMENT.exe

  • Size

    229KB

  • MD5

    8f885ac76bebc591a72f73eb3deb3d73

  • SHA1

    82af5568c6ed1af66f1f69616fc836e4c31cabb0

  • SHA256

    7f81bdd235dca279812a46cec7f585bde9d681906dba1398e8ac86dfc877d079

  • SHA512

    fb942be934ac962294c6534441c971e491f33f9d72c97f7f533edcb94e531ab675748e7775a663f133e20b3997f34e135ed663957cb8bb9ea7543fd2d2fb9d00

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.magnumopuspro.com/nyr/

Decoy

anemone-vintage.com

ironcitytools.com

joshandmatthew.com

breathtakingscenery.photos

karabakh-terror.com

micahelgall.com

entretiendesterrasses.com

mhgholdings.com

blewm.com

sidewalknotary.com

ytrs-elec.com

danhpham.com

ma21cle2henz.xyz

lotusforlease.com

shipleyphotoandfilm.com

bulktool.xyz

ouedzmala.com

yichengvpr.com

connectmygames.com

chjcsc.com

Signatures

  • Formbook

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

  • Formbook Payload 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2568
    • C:\Users\Admin\AppData\Local\Temp\SWIT BANK PAPER PAYMENT.exe
      "C:\Users\Admin\AppData\Local\Temp\SWIT BANK PAPER PAYMENT.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:644
      • C:\Users\Admin\AppData\Local\Temp\SWIT BANK PAPER PAYMENT.exe
        "C:\Users\Admin\AppData\Local\Temp\SWIT BANK PAPER PAYMENT.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2448
    • C:\Windows\SysWOW64\msdt.exe
      "C:\Windows\SysWOW64\msdt.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2228
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\SWIT BANK PAPER PAYMENT.exe"
        3⤵
          PID:3020

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\nsi747C.tmp\kwq9wzwxz56exb.dll

      MD5

      95694f0a16bdcab0875c4eaee1a0e6aa

      SHA1

      cc31b625caea8f110986001234a3ce6fafe5fcf4

      SHA256

      3a6e5bd0e4ce4116b4b76cd3e2272a7d1197992bfa031de834d0c838e8dda7bb

      SHA512

      c1646c61e02182129182200cc48499dc81aedeb86a15b53e7e01b84fe7733bdb196bcd4f8a71eae5a8eb79cbcfcf810b2cee126fc101a0553869a170b61bf5e3

    • memory/644-116-0x0000000002290000-0x0000000002292000-memory.dmp

      Filesize

      8KB

    • memory/2228-121-0x0000000000000000-mapping.dmp

    • memory/2228-126-0x0000000000DA0000-0x0000000000E33000-memory.dmp

      Filesize

      588KB

    • memory/2228-124-0x0000000000580000-0x00000000005AE000-memory.dmp

      Filesize

      184KB

    • memory/2228-125-0x0000000004610000-0x0000000004930000-memory.dmp

      Filesize

      3.1MB

    • memory/2228-123-0x0000000001090000-0x0000000001203000-memory.dmp

      Filesize

      1.4MB

    • memory/2448-117-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/2448-118-0x00000000009C0000-0x0000000000CE0000-memory.dmp

      Filesize

      3.1MB

    • memory/2448-119-0x00000000006D0000-0x00000000006E4000-memory.dmp

      Filesize

      80KB

    • memory/2448-115-0x000000000041EBA0-mapping.dmp

    • memory/2568-120-0x0000000005A90000-0x0000000005BC4000-memory.dmp

      Filesize

      1.2MB

    • memory/2568-127-0x0000000005BD0000-0x0000000005C78000-memory.dmp

      Filesize

      672KB

    • memory/3020-122-0x0000000000000000-mapping.dmp