Analysis

  • max time kernel
    147s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    07-09-2023 11:07

General

  • Target

    tmp.exe

  • Size

    598KB

  • MD5

    5a8637cc62a5884edc586b690d0bac10

  • SHA1

    33ff0da34d35ef8051d5c88641502ee7bf2f0333

  • SHA256

    54d08c079e162698607d24a232cc8b51ea0cecf8df1d6fefa27726041e2cd366

  • SHA512

    818ea5ef21b7bb392cdd17bd9f0878cf1caa27d1d5a0e1fd8d05a22da73f3cf0859a97b0ad7ea0bc17ef8b83fba2eb93322b79a607676861abc308182db1764f

  • SSDEEP

    12288:BsniF9L2hCugpGy1Md/VmA01Z0/ROPRfxzIZp+kD/etaJedzY+GG:BsniKhjo1K/V01ZKRWPEX+K/jJed0+r

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

oi24

Decoy

sorterexpo.com

50imty.xyz

biscotrucking.com

urawep.xyz

parthaviorganic.com

quali-con.com

wgimawmo.click

19829e.com

wendywardband.com

peraepin.com

wintercot.com

cqfvnzlk.click

furar.top

fcvorbww.click

gazetarendaextra.com

bakerstack.com

plant-nursery-boweco.com

30235p.com

sartensaludable.com

dalmatiangarden.com

Signatures

  • Formbook

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

  • Formbook payload 4 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2956
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NRGdELGVSZiWc.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2636
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NRGdELGVSZiWc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB23.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2608
      • C:\Users\Admin\AppData\Local\Temp\tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2780
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\SysWOW64\wscript.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2596
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        3⤵
        • Deletes itself
        PID:2424

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpDB23.tmp

    Filesize

    1KB

    MD5

    1e90c62a1d204bab2a199975110e2580

    SHA1

    65563b3c9361b8c41d1620f1ddfdcdf8104f9ab4

    SHA256

    efc8c3a3ac37e43db68e2bef2c5d19937d5ffe7eaea84fdb723f478178dbaea7

    SHA512

    9df905937500a58bb6fb8c951d45bcc04160a4aee737eae7b1ae33850ddf80229ef4cbecc6c19e5e744b04b481632f48bf6c355844c2828c73d6dcf9d01fde58

  • memory/1272-44-0x0000000009440000-0x00000000095B0000-memory.dmp

    Filesize

    1.4MB

  • memory/1272-42-0x0000000009440000-0x00000000095B0000-memory.dmp

    Filesize

    1.4MB

  • memory/1272-41-0x0000000009440000-0x00000000095B0000-memory.dmp

    Filesize

    1.4MB

  • memory/1272-40-0x0000000002C00000-0x0000000002D00000-memory.dmp

    Filesize

    1024KB

  • memory/1272-31-0x0000000006D00000-0x0000000006E22000-memory.dmp

    Filesize

    1.1MB

  • memory/2596-33-0x0000000000C30000-0x0000000000C56000-memory.dmp

    Filesize

    152KB

  • memory/2596-39-0x0000000000A40000-0x0000000000AD4000-memory.dmp

    Filesize

    592KB

  • memory/2596-37-0x0000000000070000-0x000000000009F000-memory.dmp

    Filesize

    188KB

  • memory/2596-36-0x00000000021F0000-0x00000000024F3000-memory.dmp

    Filesize

    3.0MB

  • memory/2596-35-0x0000000000070000-0x000000000009F000-memory.dmp

    Filesize

    188KB

  • memory/2596-34-0x0000000000C30000-0x0000000000C56000-memory.dmp

    Filesize

    152KB

  • memory/2636-27-0x00000000023D0000-0x0000000002410000-memory.dmp

    Filesize

    256KB

  • memory/2636-32-0x000000006EB10000-0x000000006F0BB000-memory.dmp

    Filesize

    5.7MB

  • memory/2636-24-0x000000006EB10000-0x000000006F0BB000-memory.dmp

    Filesize

    5.7MB

  • memory/2636-25-0x000000006EB10000-0x000000006F0BB000-memory.dmp

    Filesize

    5.7MB

  • memory/2636-30-0x00000000023D0000-0x0000000002410000-memory.dmp

    Filesize

    256KB

  • memory/2780-29-0x0000000000350000-0x0000000000365000-memory.dmp

    Filesize

    84KB

  • memory/2780-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2780-13-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2780-26-0x0000000000840000-0x0000000000B43000-memory.dmp

    Filesize

    3.0MB

  • memory/2780-28-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2780-17-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2780-21-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2956-5-0x0000000004D70000-0x0000000004DB0000-memory.dmp

    Filesize

    256KB

  • memory/2956-1-0x0000000074470000-0x0000000074B5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2956-22-0x0000000074470000-0x0000000074B5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2956-7-0x0000000005C20000-0x0000000005C8E000-memory.dmp

    Filesize

    440KB

  • memory/2956-6-0x0000000000360000-0x000000000036E000-memory.dmp

    Filesize

    56KB

  • memory/2956-4-0x0000000074470000-0x0000000074B5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2956-3-0x0000000000240000-0x0000000000256000-memory.dmp

    Filesize

    88KB

  • memory/2956-2-0x0000000004D70000-0x0000000004DB0000-memory.dmp

    Filesize

    256KB

  • memory/2956-0-0x00000000013C0000-0x000000000145A000-memory.dmp

    Filesize

    616KB