Analysis

  • max time kernel
    141s
  • max time network
    124s
  • 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, 23:21

General

  • Target

    e9e79b9b5180ab5c25c4edeb67f428467f24c0ecabb51526ff527b7f6673e1b4.exe

  • Size

    1.6MB

  • MD5

    219a78e642ad2c0350149bfe490c2ed3

  • SHA1

    3a5d6ed0920825a1cca53df3a9b62e603ef346bc

  • SHA256

    e9e79b9b5180ab5c25c4edeb67f428467f24c0ecabb51526ff527b7f6673e1b4

  • SHA512

    a7739f82a6c0509b7255a4024acd9d35a06719fbe37af842111de4c1e3606de2b48fe81ac5582f006058d495e18569e6c1c6d337236eb0e08ee8354cebfa467e

  • 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\e9e79b9b5180ab5c25c4edeb67f428467f24c0ecabb51526ff527b7f6673e1b4.exe
    "C:\Users\Admin\AppData\Local\Temp\e9e79b9b5180ab5c25c4edeb67f428467f24c0ecabb51526ff527b7f6673e1b4.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:4488
    • 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:4400
    • 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:4852
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4488 -s 1676
      2⤵
      • Program crash
      PID:1648
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4448
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:3912
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4488 -ip 4488
        1⤵
          PID:2532
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
          1⤵
            PID:1496
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k UnistackSvcGroup
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3860

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                  Filesize

                  1.6MB

                  MD5

                  219a78e642ad2c0350149bfe490c2ed3

                  SHA1

                  3a5d6ed0920825a1cca53df3a9b62e603ef346bc

                  SHA256

                  e9e79b9b5180ab5c25c4edeb67f428467f24c0ecabb51526ff527b7f6673e1b4

                  SHA512

                  a7739f82a6c0509b7255a4024acd9d35a06719fbe37af842111de4c1e3606de2b48fe81ac5582f006058d495e18569e6c1c6d337236eb0e08ee8354cebfa467e

                • C:\Users\Admin\AppData\Local\Comms\UnistoreDB\store.jfm

                  Filesize

                  16KB

                  MD5

                  da8b7cd82c044ed951396684298dd375

                  SHA1

                  7a713f5b48bd6112de8bdeb404602300630f983d

                  SHA256

                  d3b8c27a9aae23de8feb646c553e467fef60f2829ef75d18c42bc844b4f9904d

                  SHA512

                  e437890da0409a82bc5a2520f89077ae934d86b366902323724dc85a62c3cf66edb6a36cfce3640060ed585f89ebfff2485dcc8e0beebea737710ab7dcd34a18

                • C:\Users\Admin\AppData\Local\Temp\grandUIAqsJMMUZwNh8FS\information.txt

                  Filesize

                  3KB

                  MD5

                  ef4c2377a90e6f6b2d95b148c9c50d42

                  SHA1

                  9e5c71708e1736e8614c1583f2a8f4105a4db3e3

                  SHA256

                  41d46cd57c82744103fc44d4ec37d733447932a17019e993d986be09514e5955

                  SHA512

                  6f94163c11a402313417c9c8e2debc27fc2e1dc3a10137557f1655dbea1348b8dbe3df38fb724b51189947dfe684f5ba3e5a9af54cfdf00bbf07fc317f32ddc0

                • C:\Users\Admin\AppData\Local\Temp\posterBoxqsJMMUZwNh8FS\QdX9ITDLyCRBWeb Data

                  Filesize

                  92KB

                  MD5

                  5bca7f96843d97e2c39afbb8b5f9865b

                  SHA1

                  e64666a5d705a768e2351621577a386400111251

                  SHA256

                  e25c46923271e687a972edfcf511d7685c24ce2e509a5b10d0ba4cd6f2bfeab2

                  SHA512

                  40771d495b407c0ede8ad3e5d8e77cf588a607426f0597f0c10a81ec7b2614f28a66a1c5ff36bf8bf6905bdc6b537d8cc5a749725adfc57f72ec3c9ee17f76d3

                • C:\Users\Admin\AppData\Local\Temp\posterBoxqsJMMUZwNh8FS\ZunTSaNJLBVfWeb Data

                  Filesize

                  116KB

                  MD5

                  f70aa3fa04f0536280f872ad17973c3d

                  SHA1

                  50a7b889329a92de1b272d0ecf5fce87395d3123

                  SHA256

                  8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                  SHA512

                  30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

                • memory/3860-120-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-124-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-115-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-116-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-117-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-118-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-119-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-98-0x000001F7D4340000-0x000001F7D4350000-memory.dmp

                  Filesize

                  64KB

                • memory/3860-121-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-122-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-123-0x000001F7DC8D0000-0x000001F7DC8D1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-114-0x000001F7DC8A0000-0x000001F7DC8A1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-125-0x000001F7DC500000-0x000001F7DC501000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-126-0x000001F7DC4F0000-0x000001F7DC4F1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-128-0x000001F7DC500000-0x000001F7DC501000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-131-0x000001F7DC4F0000-0x000001F7DC4F1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-134-0x000001F7D3BE0000-0x000001F7D3BE1000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-82-0x000001F7D4240000-0x000001F7D4250000-memory.dmp

                  Filesize

                  64KB

                • memory/3860-146-0x000001F7DC620000-0x000001F7DC621000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-148-0x000001F7DC630000-0x000001F7DC631000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-149-0x000001F7DC630000-0x000001F7DC631000-memory.dmp

                  Filesize

                  4KB

                • memory/3860-150-0x000001F7DC740000-0x000001F7DC741000-memory.dmp

                  Filesize

                  4KB