Analysis

  • max time kernel
    140s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/12/2023, 23:34

General

  • Target

    1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe

  • Size

    1.6MB

  • MD5

    a60057963482f87b07cdfb1d38e5efc9

  • SHA1

    8cfe2ab8f39d12e2f2df3e57ebfe13603feb6ae2

  • SHA256

    1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10

  • SHA512

    62d8f8ef85dd4247bcaab5dc84b5ae66a66135e9d58021fa5fd31928d5b0f3552a7d2b6cef2fc8919da6007e41a8adb419fbf846b7e627a088aa2cd238f12417

  • SSDEEP

    49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe
    "C:\Users\Admin\AppData\Local\Temp\1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10.exe"
    1⤵
    • Drops startup file
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:4960
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:3952
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:4280
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 1736
      2⤵
      • Program crash
      PID:888
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4464
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:4072
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4960 -ip 4960
        1⤵
          PID:944
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
          1⤵
            PID:4092
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k UnistackSvcGroup
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1240

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                  Filesize

                  1.6MB

                  MD5

                  a60057963482f87b07cdfb1d38e5efc9

                  SHA1

                  8cfe2ab8f39d12e2f2df3e57ebfe13603feb6ae2

                  SHA256

                  1b70da7380ad4cbea5b200f1562426393530344b4fb2b34ba56291885957bc10

                  SHA512

                  62d8f8ef85dd4247bcaab5dc84b5ae66a66135e9d58021fa5fd31928d5b0f3552a7d2b6cef2fc8919da6007e41a8adb419fbf846b7e627a088aa2cd238f12417

                • C:\Users\Admin\AppData\Local\Temp\grandUIA4yTG5o3sDGim3\information.txt

                  Filesize

                  3KB

                  MD5

                  993fec0a960551e5a010168f2e0bd7e3

                  SHA1

                  616ed15c95175260666450ad0f4e032f47a184c1

                  SHA256

                  54f5b18b4e1773254077ac0cd48f9f1fa42eff366b836154963530118dd9983d

                  SHA512

                  8d7408dbea672e0a0b3d049c5b5740c5304631f9d9157330bbbd993aafddb9cc8aed390c09b261bea9507f2042d2a4a4fa89f5c512b53b1ee1882ede0a569a5f

                • C:\Users\Admin\AppData\Local\Temp\posterBox4yTG5o3sDGim3\QdX9ITDLyCRBWeb Data

                  Filesize

                  92KB

                  MD5

                  9ee081ca0d9c3cd479031e1ff265961b

                  SHA1

                  a2bfa65a2ddcd529a134ea08efd6965bcd0e5665

                  SHA256

                  2a260265cd76d10c19658a7db48e7f328aba6df399e28e2e73642d5904dd73b4

                  SHA512

                  6b9f28e80628042205df78d5393ba53ff9866ee25d92500a806055333f0fe3a93cb1516754b617c42a342d2852cb4f2cd37c849dbfd19bedb71aef5e642c33e6

                • C:\Users\Admin\AppData\Local\Temp\posterBox4yTG5o3sDGim3\ZunTSaNJLBVfWeb Data

                  Filesize

                  116KB

                  MD5

                  f70aa3fa04f0536280f872ad17973c3d

                  SHA1

                  50a7b889329a92de1b272d0ecf5fce87395d3123

                  SHA256

                  8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                  SHA512

                  30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

                • memory/1240-120-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-124-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-115-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-114-0x000001FB71530000-0x000001FB71531000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-118-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-117-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-116-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-121-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-98-0x000001FB68F40000-0x000001FB68F50000-memory.dmp

                  Filesize

                  64KB

                • memory/1240-123-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-122-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-82-0x000001FB68E40000-0x000001FB68E50000-memory.dmp

                  Filesize

                  64KB

                • memory/1240-119-0x000001FB71560000-0x000001FB71561000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-128-0x000001FB71180000-0x000001FB71181000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-131-0x000001FB71170000-0x000001FB71171000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-134-0x000001FB710B0000-0x000001FB710B1000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-126-0x000001FB71170000-0x000001FB71171000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-146-0x000001FB712B0000-0x000001FB712B1000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-148-0x000001FB712C0000-0x000001FB712C1000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-125-0x000001FB71180000-0x000001FB71181000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-150-0x000001FB713D0000-0x000001FB713D1000-memory.dmp

                  Filesize

                  4KB

                • memory/1240-149-0x000001FB712C0000-0x000001FB712C1000-memory.dmp

                  Filesize

                  4KB