Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2022 11:00

General

  • Target

    Ödeme Tavsiye Notu - 0000274553.PDF.exe

  • Size

    535KB

  • MD5

    40f56e889ab81bdb74a78010b3fe006b

  • SHA1

    03fb1836e3ea68ed18a41b10ce530d09f3ff3308

  • SHA256

    4c143b9e9804d87732fa2ca95ddc355cb0b5944ad57f33b6fe08fac0947d32f5

  • SHA512

    f3b0bfd497390cfaf0e3eadc6f54f3ad804812d2cdd46654916f580bddb4be10e50d42535c96a1aa14256884490045317e5756662d460fbb592077b6d4af9894

  • SSDEEP

    12288:slzAKpkuaBv1XP2uqLerOEU0iFr2FDaJ3:slDpQ/WXEU0iUDG

Malware Config

Extracted

Family

formbook

Campaign

m9ae

Decoy

nWTQpX6TYm6dfT3Lcw==

7JaBLgMm8EKn2AlTy5Ksj4Jq

yWRJIhE3viQgqEpZS3o=

ES9dFo0bytF8vlvRcg==

aX/aBZn29pD+cg==

lU64sYOZV7ZVpUy1ag==

9BpOCYAPv8L8TyIFAiTp2PSqLg==

uEJ2RyQ1BcBXfFr8kT5Z1KV0

oVM42Ury9pD+cg==

0Zl3VkcuKaY+

OjZeGI8dw67Z6eWtnOoBfoI=

ytwFn9j4i+N8nKYRSgcfh3xn5LU=

xMb1+YkOyxmbxJ53JsP7Pg==

HODQpzTBS1gVoi4X0hStKQ==

fQ417ycwD+ziKt1u0hStKQ==

nsApOqE62sA8uS735uCXVP+YcrQ=

4aobG3oZ3AHqTPs=

P2LEwJatZbQZUTayTW0=

/bopO7NR6clCfT3Lcw==

bBxRRkFY01R+20pZS3o=

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.

  • Adds Run key to start application 2 TTPs 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.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\Ödeme Tavsiye Notu - 0000274553.PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\Ödeme Tavsiye Notu - 0000274553.PDF.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2688
      • C:\Users\Admin\AppData\Local\Temp\svenboa.exe
        "C:\Users\Admin\AppData\Local\Temp\svenboa.exe" C:\Users\Admin\AppData\Local\Temp\stgmpxbhdcx.tyv
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:3988
        • C:\Users\Admin\AppData\Local\Temp\svenboa.exe
          "C:\Users\Admin\AppData\Local\Temp\svenboa.exe"
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:3088
    • C:\Windows\SysWOW64\NETSTAT.EXE
      "C:\Windows\SysWOW64\NETSTAT.EXE"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2376
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:1612

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\rjoqr.i

      Filesize

      185KB

      MD5

      5a363369f79b9aa5fb7f30c36255cdca

      SHA1

      ab1c4fa718eae050ffd726f23a25dac9c05f6408

      SHA256

      7d0d734491e4b96aa91ddb7da56c78d6d5e6f43476c4b496b8061b5859794dca

      SHA512

      c10b5c08482e4acbac15f125a4d9ee19fa2af67d02809794d9b9218cb50b9b0d9b229542ee959e74806ddd69264f6fb444548f616017acac3664a8839ad3e9f1

    • C:\Users\Admin\AppData\Local\Temp\stgmpxbhdcx.tyv

      Filesize

      7KB

      MD5

      916c81137e81c83b2301ded71317eaf8

      SHA1

      54b3b7538b9cf0648c615ab02020414213b80e98

      SHA256

      18c6e9457b9571852cb9857037dcc3b17c9bcdaf50d56da147440624fad58fdf

      SHA512

      5f4a9e7999a0b41e60c50d8bf36ef6c1e9435057f8999460822c9b40b7e189963a508458b9fc9d4eaadc831f3ea4b785cba8c28d320c3f8180aa99b89701e52d

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

      Filesize

      287KB

      MD5

      ee906eb277fa085c43d530fef366449c

      SHA1

      43faf3d997e01f647f654b606d4f4e130b7d74a3

      SHA256

      b1941867cd5af254cafe02824733f022da84f8d826851004b39bb3535977366b

      SHA512

      bf234d8a8ed84c9025cdd5e386c2293a6d0cdf9450512375253edf336b3c11fd2f3e7a34a0fb096700f6432d03fcf5468bfa0f294d49bf2d55a258553ad5a24d

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

      Filesize

      287KB

      MD5

      ee906eb277fa085c43d530fef366449c

      SHA1

      43faf3d997e01f647f654b606d4f4e130b7d74a3

      SHA256

      b1941867cd5af254cafe02824733f022da84f8d826851004b39bb3535977366b

      SHA512

      bf234d8a8ed84c9025cdd5e386c2293a6d0cdf9450512375253edf336b3c11fd2f3e7a34a0fb096700f6432d03fcf5468bfa0f294d49bf2d55a258553ad5a24d

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

      Filesize

      287KB

      MD5

      ee906eb277fa085c43d530fef366449c

      SHA1

      43faf3d997e01f647f654b606d4f4e130b7d74a3

      SHA256

      b1941867cd5af254cafe02824733f022da84f8d826851004b39bb3535977366b

      SHA512

      bf234d8a8ed84c9025cdd5e386c2293a6d0cdf9450512375253edf336b3c11fd2f3e7a34a0fb096700f6432d03fcf5468bfa0f294d49bf2d55a258553ad5a24d

    • memory/2180-154-0x0000000003610000-0x0000000003751000-memory.dmp

      Filesize

      1.3MB

    • memory/2180-152-0x0000000003610000-0x0000000003751000-memory.dmp

      Filesize

      1.3MB

    • memory/2180-144-0x0000000003180000-0x00000000032D6000-memory.dmp

      Filesize

      1.3MB

    • memory/2376-148-0x0000000000610000-0x000000000061B000-memory.dmp

      Filesize

      44KB

    • memory/2376-153-0x0000000000BA0000-0x0000000000BCD000-memory.dmp

      Filesize

      180KB

    • memory/2376-151-0x0000000001340000-0x00000000013CF000-memory.dmp

      Filesize

      572KB

    • memory/2376-150-0x0000000001510000-0x000000000185A000-memory.dmp

      Filesize

      3.3MB

    • memory/2376-149-0x0000000000BA0000-0x0000000000BCD000-memory.dmp

      Filesize

      180KB

    • memory/2376-145-0x0000000000000000-mapping.dmp

    • memory/3088-142-0x0000000000422000-0x0000000000424000-memory.dmp

      Filesize

      8KB

    • memory/3088-147-0x0000000000401000-0x000000000042F000-memory.dmp

      Filesize

      184KB

    • memory/3088-146-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/3088-143-0x0000000000BE0000-0x0000000000BF0000-memory.dmp

      Filesize

      64KB

    • memory/3088-141-0x00000000011D0000-0x000000000151A000-memory.dmp

      Filesize

      3.3MB

    • memory/3088-139-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/3088-140-0x0000000000401000-0x000000000042F000-memory.dmp

      Filesize

      184KB

    • memory/3088-137-0x0000000000000000-mapping.dmp

    • memory/3988-132-0x0000000000000000-mapping.dmp