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Analysis

  • max time kernel
    190s
  • max time network
    101s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23/11/2022, 14:13

General

  • Target

    5b72ca62dd81f1419b3b7598c96160c19d124fe6ec657d0d35f55795a467e35b.exe

  • Size

    1.2MB

  • MD5

    fe5175560342c0936f33072bc5f125c2

  • SHA1

    12f3bb5a0822e8317cf0444a215322f5bed9e6dd

  • SHA256

    5b72ca62dd81f1419b3b7598c96160c19d124fe6ec657d0d35f55795a467e35b

  • SHA512

    8ae02d9e6e44db218f99e84b6b945d228646ea4bb5e1dae5621d03f1a09a043e729723dbb1ee463a4ce15507d1cd21f30f64ebd1a09ef4266fa770fd78c0960d

  • SSDEEP

    24576:di4FmmfgFuk/3OtOZHcgxW7NbQkGt4ST69cv20euBXaXlSJitbxSrYFnDzh/hvEe:di4FmmfgUk/etOZHcgY7NbQkGqST69w+

Malware Config

Signatures

  • ISR Stealer

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

  • ISR Stealer payload 6 IoCs
  • NirSoft MailPassView 4 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 12 IoCs
  • Executes dropped EXE 7 IoCs
  • UPX packed file 13 IoCs

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

  • Loads dropped DLL 8 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
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b72ca62dd81f1419b3b7598c96160c19d124fe6ec657d0d35f55795a467e35b.exe
    "C:\Users\Admin\AppData\Local\Temp\5b72ca62dd81f1419b3b7598c96160c19d124fe6ec657d0d35f55795a467e35b.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\cTMGA.exe
      "C:\Users\Admin\AppData\Local\Temp\cTMGA.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1368
      • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
        C:\Users\Admin\AppData\Local\Temp\\cvtres.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1984
        • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
          "C:\Users\Admin\AppData\Local\Temp\cvtres.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1196
          • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
            "C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
            5⤵
            • Executes dropped EXE
            PID:1456
          • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
            "C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:1728
          • C:\Users\Admin\AppData\Local\Temp\cvtres.exe
            "C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
            5⤵
            • Executes dropped EXE
            • Accesses Microsoft Outlook accounts
            PID:1620
      • C:\Users\Admin\AppData\Local\Temp\dCbv.exe
        "C:\Users\Admin\AppData\Local\Temp\dCbv.exe"
        3⤵
        • Executes dropped EXE
        PID:1600
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
      dw20.exe -x -s 944
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      PID:684
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x254
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:788

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\cTMGA.exe

    Filesize

    818KB

    MD5

    259d1c6bd3ae9af95fbb0a0f73f0c8e2

    SHA1

    c5892add06d8c3de974f37ff1055ec2a7cea284a

    SHA256

    421ed289a2696c3e4233234a9d8cf48537295b9158d27dbc8ff304c8a9d7e2ba

    SHA512

    552a7a18ad42374edfde4e002afcdc139781445f3cf448fd7b72125bd43695a4e381339c25d98eec558ebfaf40a3ce80fdb017df72b2d73df5a5c8e0b1203409

  • C:\Users\Admin\AppData\Local\Temp\cTMGA.exe

    Filesize

    818KB

    MD5

    259d1c6bd3ae9af95fbb0a0f73f0c8e2

    SHA1

    c5892add06d8c3de974f37ff1055ec2a7cea284a

    SHA256

    421ed289a2696c3e4233234a9d8cf48537295b9158d27dbc8ff304c8a9d7e2ba

    SHA512

    552a7a18ad42374edfde4e002afcdc139781445f3cf448fd7b72125bd43695a4e381339c25d98eec558ebfaf40a3ce80fdb017df72b2d73df5a5c8e0b1203409

  • C:\Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • C:\Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • C:\Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • C:\Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • C:\Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • C:\Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • C:\Users\Admin\AppData\Local\Temp\dCbv.exe

    Filesize

    255KB

    MD5

    8f064640da380d34a0485de34d03388c

    SHA1

    488e5da5a955aaed1848c026ced220b0fbeb1190

    SHA256

    b158a4635a85827f3d78a9c26c6ad9a0bc3126f4cf6329c2fdd039ed9fa71356

    SHA512

    34cee8a5741bfe23e6909398c7e12cdfd926de46afcd984ddba32936639686a61320622adc45d0c3be549ed0d6385d2954377a5ae36099998cb176313f438157

  • \Users\Admin\AppData\Local\Temp\cTMGA.exe

    Filesize

    818KB

    MD5

    259d1c6bd3ae9af95fbb0a0f73f0c8e2

    SHA1

    c5892add06d8c3de974f37ff1055ec2a7cea284a

    SHA256

    421ed289a2696c3e4233234a9d8cf48537295b9158d27dbc8ff304c8a9d7e2ba

    SHA512

    552a7a18ad42374edfde4e002afcdc139781445f3cf448fd7b72125bd43695a4e381339c25d98eec558ebfaf40a3ce80fdb017df72b2d73df5a5c8e0b1203409

  • \Users\Admin\AppData\Local\Temp\cTMGA.exe

    Filesize

    818KB

    MD5

    259d1c6bd3ae9af95fbb0a0f73f0c8e2

    SHA1

    c5892add06d8c3de974f37ff1055ec2a7cea284a

    SHA256

    421ed289a2696c3e4233234a9d8cf48537295b9158d27dbc8ff304c8a9d7e2ba

    SHA512

    552a7a18ad42374edfde4e002afcdc139781445f3cf448fd7b72125bd43695a4e381339c25d98eec558ebfaf40a3ce80fdb017df72b2d73df5a5c8e0b1203409

  • \Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • \Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • \Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • \Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • \Users\Admin\AppData\Local\Temp\cvtres.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • \Users\Admin\AppData\Local\Temp\dCbv.exe

    Filesize

    255KB

    MD5

    8f064640da380d34a0485de34d03388c

    SHA1

    488e5da5a955aaed1848c026ced220b0fbeb1190

    SHA256

    b158a4635a85827f3d78a9c26c6ad9a0bc3126f4cf6329c2fdd039ed9fa71356

    SHA512

    34cee8a5741bfe23e6909398c7e12cdfd926de46afcd984ddba32936639686a61320622adc45d0c3be549ed0d6385d2954377a5ae36099998cb176313f438157

  • memory/1196-86-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-87-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-79-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-83-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-84-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-85-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-114-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-78-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-89-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-93-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1196-92-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1368-132-0x0000000074F50000-0x00000000754FB000-memory.dmp

    Filesize

    5.7MB

  • memory/1368-80-0x0000000074F50000-0x00000000754FB000-memory.dmp

    Filesize

    5.7MB

  • memory/1368-137-0x0000000074F50000-0x00000000754FB000-memory.dmp

    Filesize

    5.7MB

  • memory/1456-97-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1456-140-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1456-95-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1456-128-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1456-127-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1620-122-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1620-121-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1620-111-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1620-141-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1620-138-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1620-125-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1620-117-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1620-109-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1728-126-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1728-120-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1728-123-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1728-116-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1728-101-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1728-104-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1728-130-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1984-68-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1984-133-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1984-65-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1984-82-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1984-64-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1984-70-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/1984-142-0x0000000000400000-0x0000000000470000-memory.dmp

    Filesize

    448KB

  • memory/2024-131-0x0000000074F50000-0x00000000754FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2024-55-0x0000000074F50000-0x00000000754FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2024-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

    Filesize

    8KB