Analysis

  • max time kernel
    53s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 09:03

General

  • Target

    7159dc8eee8e2cfbeb071acc877a4f499cd0110146311f045b0279f0a77047ff.exe

  • Size

    1.1MB

  • MD5

    7d1cc2d002bae3faebd68f653cd4273f

  • SHA1

    1151f7fb080c0d24785bbcb63868757f7598fc57

  • SHA256

    7159dc8eee8e2cfbeb071acc877a4f499cd0110146311f045b0279f0a77047ff

  • SHA512

    6011e19b15b7f00b8011608da316667cef50fb760528b554e7a8182d6ea037a468f134a9a9c9063f9aea659b02183fe14ea7208a839e0d990e06229250ab23fc

  • SSDEEP

    12288:m/O2MP+/sybq5p3hQxz9qKav7CSfnfmC7Bl04eMQWLNSMjc2OfbXqqE0K17FP7uw:Nr0U30a+SDrpjOfN/KLDj

Malware Config

Signatures

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • ISR Stealer payload 5 IoCs
  • NirSoft MailPassView 4 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 13 IoCs
  • Executes dropped EXE 5 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7159dc8eee8e2cfbeb071acc877a4f499cd0110146311f045b0279f0a77047ff.exe
    "C:\Users\Admin\AppData\Local\Temp\7159dc8eee8e2cfbeb071acc877a4f499cd0110146311f045b0279f0a77047ff.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1380
    • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe
      C:\Users\Admin\AppData\Local\Temp\\AppLaunch\winlogon.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:820
      • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe
        "C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:812
        • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe
          "C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
          4⤵
          • Executes dropped EXE
          PID:276
        • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe
          "C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
          4⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook accounts
          PID:1332
        • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe
          "C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:1576

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • C:\Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • \Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • \Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • \Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • \Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • \Users\Admin\AppData\Local\Temp\AppLaunch\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • memory/276-113-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/276-119-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/276-120-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/276-86-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/276-88-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/812-71-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-74-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-79-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-82-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-77-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-84-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-75-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-76-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-110-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-70-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/812-73-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/820-58-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/820-123-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/820-60-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/820-115-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/820-62-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/820-57-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1332-112-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1332-114-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1332-116-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1332-121-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1332-100-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1332-102-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1380-122-0x0000000074270000-0x000000007481B000-memory.dmp

    Filesize

    5.7MB

  • memory/1380-54-0x00000000757A1000-0x00000000757A3000-memory.dmp

    Filesize

    8KB

  • memory/1380-55-0x0000000074270000-0x000000007481B000-memory.dmp

    Filesize

    5.7MB

  • memory/1576-93-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1576-118-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1576-108-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1576-117-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1576-105-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1576-95-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB