Analysis

  • max time kernel
    172s
  • max time network
    76s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 11:26

General

  • Target

    111.exe

  • Size

    346KB

  • MD5

    7eb1dab5352b08d22f9bc9adff2fe769

  • SHA1

    3b7d70bd225c687a86481ca1fad6a9979c02b512

  • SHA256

    31451031271efb07c67bf5a6864471ffc092f16e63aac290a49bdb86f6e47fd8

  • SHA512

    55120acc9c744d13e42907ea6da1a8b7572c30c7f40d384dd40060fab3a6c72144ee723284b0201bb98a1ef96620436666fd67415b432c2013dc976d83697d51

  • SSDEEP

    6144:aIsmmCy886hKGj1FzwVOHpLJPpRlYcgy8uuaaAiUDVoL0XYcYhUMdcL77s3QpjKv:KN8jhUsHpLPFl8uuaaloMdl

Malware Config

Signatures

  • ISR Stealer

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

  • ISR Stealer payload 9 IoCs
  • NirSoft MailPassView 4 IoCs

    Password recovery tool for various email clients

  • Nirsoft 4 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 15 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\111.exe
    "C:\Users\Admin\AppData\Local\Temp\111.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\m2TxoDMJwY.ini"
        3⤵
          PID:1620
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          /scomma "C:\Users\Admin\AppData\Local\Temp\jyuzGOn7jd.ini"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:1592
      • C:\Users\Admin\AppData\Roaming\Microsoft\AeLookupSvi.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\AeLookupSvi.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1680
        • C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1320
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
            4⤵
            • Suspicious use of SetThreadContext
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:832
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
              /scomma "C:\Users\Admin\AppData\Local\Temp\vHZ9rHUuFL.ini"
              5⤵
                PID:1472
              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
                /scomma "C:\Users\Admin\AppData\Local\Temp\VvEZuDyc8g.ini"
                5⤵
                • Accesses Microsoft Outlook accounts
                PID:1776

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

        Filesize

        2KB

        MD5

        8cd381eca2d5342e36b1e65a9b7f82d5

        SHA1

        d9b529576e1ea26e8daf88fcda26b7a0069da217

        SHA256

        17ff373fb2deb3ef3931ae098202097211226848ea6c581ceb9514e7a6e49369

        SHA512

        c888bcac5413df3eac3b068d37c866362d37915f1a25508743d818f79ce5b0518fe7ec7a4ff29be51d2404eb5f999b5d2238e60a8670375b82a8a96566101154

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

        Filesize

        61KB

        MD5

        3dcf580a93972319e82cafbc047d34d5

        SHA1

        8528d2a1363e5de77dc3b1142850e51ead0f4b6b

        SHA256

        40810e31f1b69075c727e6d557f9614d5880112895ff6f4df1767e87ae5640d1

        SHA512

        98384be7218340f95dae88d1cb865f23a0b4e12855beb6e74a3752274c9b4c601e493864db777bca677a370d0a9dbffd68d94898a82014537f3a801cce839c42

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

        Filesize

        1KB

        MD5

        8641ac0a62e1e72023be75ceed4638a9

        SHA1

        a347dbd79e99d81cdd6ec77783008fec9f7e7d42

        SHA256

        d291f90a287f0bf8702208bab880ef95c5b2bd22a2c21762e828a707a004da2c

        SHA512

        9a12e4baf2ca8bc5c4ca5a8606a9200241da8fb413e50ef6c0b6b4597c25a2636915bd9dfd7e9a97e0f58a15859629bad9222188dccdaf4efdbb8e14884d0ffe

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C6872375A2E1BC120603F5605C3CEC71

        Filesize

        472B

        MD5

        b5170f55c5fd102cd23a641a76db5095

        SHA1

        9c9855182d6d8c7d281a88eb74c4ad964c166d51

        SHA256

        87cd0f31cae591c772a1ce76a198c8480e575b163cfcde3a0a191ae7a491e6e8

        SHA512

        b503d73c7b9e99a0f43c0fea92a2b8f49bfb164a2ef290f69860dd20623c735199f6b3abbaac472585365d71c3551e006bcef504456fcd728d7f781fe1d568c0

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

        Filesize

        488B

        MD5

        bc7964d8873aafec3dfc457690282ab6

        SHA1

        881a5886cfe8253d9d57cf4272d0a23773cb5c9b

        SHA256

        092a867f86f502dfba96ebd0ce299e4db5ebf3f54b96ea495b27d862383c80dc

        SHA512

        f74f0d83b59ff955a53d594b88e5c0a11524d8c1b3683dbf4b5be745595513726c2240f9a637d85a4a50b13b09c40564127caf49a1e7c4fa9a0db5741be046a0

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

        Filesize

        342B

        MD5

        60f063c7dbef203cc398f8ce4f334379

        SHA1

        6e3d30a5738a98fe0710e1265adc750787881aec

        SHA256

        79c79431290a42ef35dee38c72db3191facbc619e280294f33c1c6ca107079d9

        SHA512

        5b3e3595e2258759a98853e302bf072ffaa5bf00d3233810dfcc2242e463a6d82949e071dbf605cac2cd61d285aeffedbb80ab166d82656ce4e62fdb1689f511

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

        Filesize

        482B

        MD5

        930bfd5bf2e167b6cf0082e2205afc19

        SHA1

        a316b70aa706e5ab54747829de3dfea222321561

        SHA256

        b571aa7aad931631d51478adad26b68255d6f865cc48465666cc14bee6d6064d

        SHA512

        0b2a21cc2a7f7ec3bbfcd3839339df5ed676a2654b538e3de9a0d7626420713fb3de651259227aa55bf9e8f28382c9a84bc8bf1bf06d4f98046bd49646c48dd4

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C6872375A2E1BC120603F5605C3CEC71

        Filesize

        484B

        MD5

        6d99ba40fd283ace8af925ef835c785d

        SHA1

        b055062edef7d29ff70bac7b2294608868fe3f5c

        SHA256

        3ec94931e06c650884f514e9e585aadd5f022212b7ef6da4e16b10cfbad44fcc

        SHA512

        000bad8133bae026a08e2011baf4de89b241fc18badec95ac242098c26f9aaccb7a16be092ef6715dde9eeaa138d5dc4d043ae2a43cc23635fac7b894b812284

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\XB6YKGN8\index[1].htm

        Filesize

        162B

        MD5

        4f8e702cc244ec5d4de32740c0ecbd97

        SHA1

        3adb1f02d5b6054de0046e367c1d687b6cdf7aff

        SHA256

        9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

        SHA512

        21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

      • C:\Users\Admin\AppData\Local\Temp\m2TxoDMJwY.ini

        Filesize

        5B

        MD5

        d1ea279fb5559c020a1b4137dc4de237

        SHA1

        db6f8988af46b56216a6f0daf95ab8c9bdb57400

        SHA256

        fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

        SHA512

        720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

      • C:\Users\Admin\AppData\Local\Temp\vHZ9rHUuFL.ini

        Filesize

        5B

        MD5

        d1ea279fb5559c020a1b4137dc4de237

        SHA1

        db6f8988af46b56216a6f0daf95ab8c9bdb57400

        SHA256

        fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

        SHA512

        720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

      • C:\Users\Admin\AppData\Roaming\Microsoft\AeLookupSvi.exe

        Filesize

        8KB

        MD5

        0ad079e611cf1a31bc5b01ee17fe607d

        SHA1

        d769361e8d0289cfc79adb2b0a5e6f3b9af33c15

        SHA256

        8a0d39c067024add12353126cd79c6ceb8f1680895a0f81737aae070568e38f5

        SHA512

        f78ebeda9e01b6deab338a800be8b267e594845ee258c3e83e12f8c216a11599fe63c15147c26fbab2b4090d30739893299b506cbc28025154ea4ec0726e1f05

      • C:\Users\Admin\AppData\Roaming\Microsoft\AeLookupSvi.exe

        Filesize

        8KB

        MD5

        0ad079e611cf1a31bc5b01ee17fe607d

        SHA1

        d769361e8d0289cfc79adb2b0a5e6f3b9af33c15

        SHA256

        8a0d39c067024add12353126cd79c6ceb8f1680895a0f81737aae070568e38f5

        SHA512

        f78ebeda9e01b6deab338a800be8b267e594845ee258c3e83e12f8c216a11599fe63c15147c26fbab2b4090d30739893299b506cbc28025154ea4ec0726e1f05

      • C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe

        Filesize

        346KB

        MD5

        7eb1dab5352b08d22f9bc9adff2fe769

        SHA1

        3b7d70bd225c687a86481ca1fad6a9979c02b512

        SHA256

        31451031271efb07c67bf5a6864471ffc092f16e63aac290a49bdb86f6e47fd8

        SHA512

        55120acc9c744d13e42907ea6da1a8b7572c30c7f40d384dd40060fab3a6c72144ee723284b0201bb98a1ef96620436666fd67415b432c2013dc976d83697d51

      • C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe

        Filesize

        346KB

        MD5

        7eb1dab5352b08d22f9bc9adff2fe769

        SHA1

        3b7d70bd225c687a86481ca1fad6a9979c02b512

        SHA256

        31451031271efb07c67bf5a6864471ffc092f16e63aac290a49bdb86f6e47fd8

        SHA512

        55120acc9c744d13e42907ea6da1a8b7572c30c7f40d384dd40060fab3a6c72144ee723284b0201bb98a1ef96620436666fd67415b432c2013dc976d83697d51

      • \Users\Admin\AppData\Roaming\Microsoft\AeLookupSvi.exe

        Filesize

        8KB

        MD5

        0ad079e611cf1a31bc5b01ee17fe607d

        SHA1

        d769361e8d0289cfc79adb2b0a5e6f3b9af33c15

        SHA256

        8a0d39c067024add12353126cd79c6ceb8f1680895a0f81737aae070568e38f5

        SHA512

        f78ebeda9e01b6deab338a800be8b267e594845ee258c3e83e12f8c216a11599fe63c15147c26fbab2b4090d30739893299b506cbc28025154ea4ec0726e1f05

      • \Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe

        Filesize

        346KB

        MD5

        7eb1dab5352b08d22f9bc9adff2fe769

        SHA1

        3b7d70bd225c687a86481ca1fad6a9979c02b512

        SHA256

        31451031271efb07c67bf5a6864471ffc092f16e63aac290a49bdb86f6e47fd8

        SHA512

        55120acc9c744d13e42907ea6da1a8b7572c30c7f40d384dd40060fab3a6c72144ee723284b0201bb98a1ef96620436666fd67415b432c2013dc976d83697d51

      • memory/832-110-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/832-137-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/948-59-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/948-84-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/948-61-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/948-57-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/948-68-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/948-118-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/948-56-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/1320-92-0x0000000074500000-0x0000000074AAB000-memory.dmp

        Filesize

        5.7MB

      • memory/1320-138-0x0000000074500000-0x0000000074AAB000-memory.dmp

        Filesize

        5.7MB

      • memory/1340-91-0x0000000074500000-0x0000000074AAB000-memory.dmp

        Filesize

        5.7MB

      • memory/1340-55-0x0000000074500000-0x0000000074AAB000-memory.dmp

        Filesize

        5.7MB

      • memory/1340-54-0x0000000076041000-0x0000000076043000-memory.dmp

        Filesize

        8KB

      • memory/1340-83-0x0000000074500000-0x0000000074AAB000-memory.dmp

        Filesize

        5.7MB

      • memory/1472-107-0x0000000000400000-0x0000000000453000-memory.dmp

        Filesize

        332KB

      • memory/1472-108-0x0000000000400000-0x0000000000453000-memory.dmp

        Filesize

        332KB

      • memory/1472-109-0x0000000000400000-0x0000000000453000-memory.dmp

        Filesize

        332KB

      • memory/1592-111-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/1592-117-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/1592-116-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/1592-115-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/1620-80-0x0000000000400000-0x0000000000453000-memory.dmp

        Filesize

        332KB

      • memory/1620-78-0x0000000000400000-0x0000000000453000-memory.dmp

        Filesize

        332KB

      • memory/1620-77-0x0000000000400000-0x0000000000453000-memory.dmp

        Filesize

        332KB

      • memory/1620-76-0x0000000000400000-0x0000000000453000-memory.dmp

        Filesize

        332KB

      • memory/1620-66-0x0000000000400000-0x0000000000453000-memory.dmp

        Filesize

        332KB

      • memory/1680-79-0x0000000074500000-0x0000000074AAB000-memory.dmp

        Filesize

        5.7MB

      • memory/1680-85-0x0000000074500000-0x0000000074AAB000-memory.dmp

        Filesize

        5.7MB

      • memory/1776-134-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/1776-135-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/1776-136-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB