Overview

overview

10

Static

static

5

f88e9104df...01.exe

windows7-x64

10

f88e9104df...01.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    204s
  • max time network
    218s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 03:58

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General

  • Target

    f88e9104df99cf75c54e9ae5d0d05cb63a107c17b57ba2f04fb3c64ce3101f01.exe

  • Size

    1.0MB

  • MD5

    24a555c616a2e1e144591f690e3f6a0c

  • SHA1

    f994653839fa49c8aef18cee6d5129b0887d3059

  • SHA256

    f88e9104df99cf75c54e9ae5d0d05cb63a107c17b57ba2f04fb3c64ce3101f01

  • SHA512

    2e85d1225f7f8935c880f427e99fd2fc77b0205ccc1c61585e7debb39d772c3484f6d373e2008bb97058c98a5d39b5df07a29036d8581ce3ad2b2a08d845cc69

  • SSDEEP

    12288:TaWzgMg7v3qnCiMErQohh0F4CCJ8lny/QPO4re39oGE15jSsFZyoopSqM14C:WaHMv6Corjqny/QPOGetoRNFZyomW4C

Score
10/10
isrstealercollectionspywarestealertrojanupx

Malware Config

Signatures

  • ISR Stealer

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

    trojanstealerisrstealer
  • ISR Stealer payload 4 IoCs
  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • Nirsoft 3 IoCs
  • UPX packed file 9 IoCs

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

    upx
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
    collection
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f88e9104df99cf75c54e9ae5d0d05cb63a107c17b57ba2f04fb3c64ce3101f01.exe
    "C:\Users\Admin\AppData\Local\Temp\f88e9104df99cf75c54e9ae5d0d05cb63a107c17b57ba2f04fb3c64ce3101f01.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Users\Admin\AppData\Local\Temp\f88e9104df99cf75c54e9ae5d0d05cb63a107c17b57ba2f04fb3c64ce3101f01.exe
      "C:\Users\Admin\AppData\Local\Temp\f88e9104df99cf75c54e9ae5d0d05cb63a107c17b57ba2f04fb3c64ce3101f01.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:216
      • C:\Users\Admin\AppData\Local\Temp\f88e9104df99cf75c54e9ae5d0d05cb63a107c17b57ba2f04fb3c64ce3101f01.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\AlYqgzob50.ini"
        3⤵
          PID:3340
        • C:\Users\Admin\AppData\Local\Temp\f88e9104df99cf75c54e9ae5d0d05cb63a107c17b57ba2f04fb3c64ce3101f01.exe
          /scomma "C:\Users\Admin\AppData\Local\Temp\on98Jrb2v7.ini"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:3744

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\AlYqgzob50.ini
      Filesize

      5B

      MD5

      d1ea279fb5559c020a1b4137dc4de237

      SHA1

      db6f8988af46b56216a6f0daf95ab8c9bdb57400

      SHA256

      fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

      SHA512

      720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

      Download Submit
    • memory/216-133-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

      Download
    • memory/216-137-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

      Download
    • memory/216-153-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

      Download
    • memory/216-132-0x0000000000000000-mapping.dmp
      Download
    • memory/216-145-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

      Download
    • memory/3340-139-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

      Download
    • memory/3340-143-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

      Download
    • memory/3340-142-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

      Download
    • memory/3340-141-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

      Download
    • memory/3340-138-0x0000000000000000-mapping.dmp
      Download
    • memory/3744-146-0x0000000000000000-mapping.dmp
      Download
    • memory/3744-147-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

      Download
    • memory/3744-149-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

      Download
    • memory/3744-150-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

      Download
    • memory/3744-151-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

      Download
    • memory/3744-152-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

      Download