Analysis

  • max time kernel
    151s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    01-10-2021 20:22

General

  • Target

    d7a4223e43b194c93b0663e8e319fbaa.exe

  • Size

    204KB

  • MD5

    d7a4223e43b194c93b0663e8e319fbaa

  • SHA1

    d6cbe3198b1875a485773496b0e9c2b944b23133

  • SHA256

    ff96c05cc539eae59ea43c37f1996372589b33aa2ba3a9bdc5a1e7b20b1f75b2

  • SHA512

    e4dac4cbe21956caed99d65d0753119b2df38444b0a6831cd1008b80cf4a6a581e25ef07c1c2ff2cd010dd8d94bcadec4c5812751f8a1f02428cb11f8b37c13c

Malware Config

Extracted

Family

redline

Botnet

@soul3ss

C2

95.216.43.58:40566

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 1 IoCs
  • UAC bypass 3 TTPs
  • Windows security bypass 2 TTPs
  • Nirsoft 7 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 9 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 8 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d7a4223e43b194c93b0663e8e319fbaa.exe
    "C:\Users\Admin\AppData\Local\Temp\d7a4223e43b194c93b0663e8e319fbaa.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1548
    • C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
      "C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1288
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\603c0340b4\
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1688
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\603c0340b4\
          4⤵
            PID:1228
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN sqtvvs.exe /TR "C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe" /F
          3⤵
          • Creates scheduled task(s)
          PID:1772
        • C:\Users\Admin\AppData\Local\Temp\soul3ss\soul3ss.exe
          "C:\Users\Admin\AppData\Local\Temp\soul3ss.\soul3ss.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Windows security modification
          • Checks whether UAC is enabled
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:340
          • C:\Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe
            "C:\Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1160
            • C:\Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe
              "C:\Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe" /SpecialRun 4101d8 1160
              5⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1352
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\soul3ss\soul3ss.exe" -Force
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1696
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\soul3ss\soul3ss.exe" -Force
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1704
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {C0F1212D-63E4-452B-A1C9-6271B9820FC4} S-1-5-21-3456797065-1076791440-4146276586-1000:JZCKHXIN\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1072
      • C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
        C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
        2⤵
        • Executes dropped EXE
        PID:1352
      • C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
        C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
        2⤵
        • Executes dropped EXE
        PID:1284

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Bypass User Account Control

    1
    T1088

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    6
    T1112

    Disabling Security Tools

    4
    T1089

    Bypass User Account Control

    1
    T1088

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\15213456797065107679
      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • C:\Users\Admin\AppData\Local\Temp\15213456797065107679
      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • C:\Users\Admin\AppData\Local\Temp\15213456797065107679
      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • C:\Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • C:\Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • C:\Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
      MD5

      d7a4223e43b194c93b0663e8e319fbaa

      SHA1

      d6cbe3198b1875a485773496b0e9c2b944b23133

      SHA256

      ff96c05cc539eae59ea43c37f1996372589b33aa2ba3a9bdc5a1e7b20b1f75b2

      SHA512

      e4dac4cbe21956caed99d65d0753119b2df38444b0a6831cd1008b80cf4a6a581e25ef07c1c2ff2cd010dd8d94bcadec4c5812751f8a1f02428cb11f8b37c13c

    • C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
      MD5

      d7a4223e43b194c93b0663e8e319fbaa

      SHA1

      d6cbe3198b1875a485773496b0e9c2b944b23133

      SHA256

      ff96c05cc539eae59ea43c37f1996372589b33aa2ba3a9bdc5a1e7b20b1f75b2

      SHA512

      e4dac4cbe21956caed99d65d0753119b2df38444b0a6831cd1008b80cf4a6a581e25ef07c1c2ff2cd010dd8d94bcadec4c5812751f8a1f02428cb11f8b37c13c

    • C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
      MD5

      d7a4223e43b194c93b0663e8e319fbaa

      SHA1

      d6cbe3198b1875a485773496b0e9c2b944b23133

      SHA256

      ff96c05cc539eae59ea43c37f1996372589b33aa2ba3a9bdc5a1e7b20b1f75b2

      SHA512

      e4dac4cbe21956caed99d65d0753119b2df38444b0a6831cd1008b80cf4a6a581e25ef07c1c2ff2cd010dd8d94bcadec4c5812751f8a1f02428cb11f8b37c13c

    • C:\Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
      MD5

      d7a4223e43b194c93b0663e8e319fbaa

      SHA1

      d6cbe3198b1875a485773496b0e9c2b944b23133

      SHA256

      ff96c05cc539eae59ea43c37f1996372589b33aa2ba3a9bdc5a1e7b20b1f75b2

      SHA512

      e4dac4cbe21956caed99d65d0753119b2df38444b0a6831cd1008b80cf4a6a581e25ef07c1c2ff2cd010dd8d94bcadec4c5812751f8a1f02428cb11f8b37c13c

    • C:\Users\Admin\AppData\Local\Temp\soul3ss\soul3ss.exe
      MD5

      377f11494e745c06327edfca7fda6828

      SHA1

      46f3b951f24ab73bae86f5541e7c138122a11501

      SHA256

      4f8aa4f9de14c9cd75d2572a078c1553b5ed269ab6e5d4a33985c4ac5484f7b1

      SHA512

      c8a3e429d48f0d90b252d47216bcf73ad34ca9671a5674aafc9f6c81abb623ff7475769d561a9ba2e0467c7611399fdfdfcfc2eaab5b776b45b7fa64f79dc3f4

    • C:\Users\Admin\AppData\Local\Temp\soul3ss\soul3ss.exe
      MD5

      377f11494e745c06327edfca7fda6828

      SHA1

      46f3b951f24ab73bae86f5541e7c138122a11501

      SHA256

      4f8aa4f9de14c9cd75d2572a078c1553b5ed269ab6e5d4a33985c4ac5484f7b1

      SHA512

      c8a3e429d48f0d90b252d47216bcf73ad34ca9671a5674aafc9f6c81abb623ff7475769d561a9ba2e0467c7611399fdfdfcfc2eaab5b776b45b7fa64f79dc3f4

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
      MD5

      ba868ce566aba5f4b90e8484a180eb68

      SHA1

      098fbb37510e66a975b33d724cc251d68b350734

      SHA256

      d6525b1978336c842532904a92cce9d91d671128287f77c1d38fd6fb9aa07a67

      SHA512

      db3f0835ae914082c1eb814dac2f267e068230e2f846306177acb33e2f06453c5d80559709b1b9f2a0e6a1ee4809a99cfc6e641ff00b4774693d1c6951cbb866

    • \Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • \Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • \Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • \Users\Admin\AppData\Local\Temp\4f6f8f61-0fa7-499f-b8bc-435846b71ab2\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • \Users\Admin\AppData\Local\Temp\603c0340b4\sqtvvs.exe
      MD5

      d7a4223e43b194c93b0663e8e319fbaa

      SHA1

      d6cbe3198b1875a485773496b0e9c2b944b23133

      SHA256

      ff96c05cc539eae59ea43c37f1996372589b33aa2ba3a9bdc5a1e7b20b1f75b2

      SHA512

      e4dac4cbe21956caed99d65d0753119b2df38444b0a6831cd1008b80cf4a6a581e25ef07c1c2ff2cd010dd8d94bcadec4c5812751f8a1f02428cb11f8b37c13c

    • \Users\Admin\AppData\Local\Temp\soul3ss\soul3ss.exe
      MD5

      377f11494e745c06327edfca7fda6828

      SHA1

      46f3b951f24ab73bae86f5541e7c138122a11501

      SHA256

      4f8aa4f9de14c9cd75d2572a078c1553b5ed269ab6e5d4a33985c4ac5484f7b1

      SHA512

      c8a3e429d48f0d90b252d47216bcf73ad34ca9671a5674aafc9f6c81abb623ff7475769d561a9ba2e0467c7611399fdfdfcfc2eaab5b776b45b7fa64f79dc3f4

    • \Users\Admin\AppData\Local\Temp\soul3ss\soul3ss.exe
      MD5

      377f11494e745c06327edfca7fda6828

      SHA1

      46f3b951f24ab73bae86f5541e7c138122a11501

      SHA256

      4f8aa4f9de14c9cd75d2572a078c1553b5ed269ab6e5d4a33985c4ac5484f7b1

      SHA512

      c8a3e429d48f0d90b252d47216bcf73ad34ca9671a5674aafc9f6c81abb623ff7475769d561a9ba2e0467c7611399fdfdfcfc2eaab5b776b45b7fa64f79dc3f4

    • \Users\Admin\AppData\Local\Temp\soul3ss\soul3ss.exe
      MD5

      377f11494e745c06327edfca7fda6828

      SHA1

      46f3b951f24ab73bae86f5541e7c138122a11501

      SHA256

      4f8aa4f9de14c9cd75d2572a078c1553b5ed269ab6e5d4a33985c4ac5484f7b1

      SHA512

      c8a3e429d48f0d90b252d47216bcf73ad34ca9671a5674aafc9f6c81abb623ff7475769d561a9ba2e0467c7611399fdfdfcfc2eaab5b776b45b7fa64f79dc3f4

    • \Users\Admin\AppData\Local\Temp\soul3ss\soul3ss.exe
      MD5

      377f11494e745c06327edfca7fda6828

      SHA1

      46f3b951f24ab73bae86f5541e7c138122a11501

      SHA256

      4f8aa4f9de14c9cd75d2572a078c1553b5ed269ab6e5d4a33985c4ac5484f7b1

      SHA512

      c8a3e429d48f0d90b252d47216bcf73ad34ca9671a5674aafc9f6c81abb623ff7475769d561a9ba2e0467c7611399fdfdfcfc2eaab5b776b45b7fa64f79dc3f4

    • memory/340-66-0x0000000000000000-mapping.dmp
    • memory/340-72-0x0000000001FD0000-0x0000000002038000-memory.dmp
      Filesize

      416KB

    • memory/340-71-0x0000000004A90000-0x0000000004A91000-memory.dmp
      Filesize

      4KB

    • memory/340-69-0x00000000002C0000-0x00000000002C1000-memory.dmp
      Filesize

      4KB

    • memory/340-86-0x0000000001F10000-0x0000000001F2D000-memory.dmp
      Filesize

      116KB

    • memory/1160-75-0x0000000000000000-mapping.dmp
    • memory/1228-61-0x0000000000000000-mapping.dmp
    • memory/1284-101-0x0000000000000000-mapping.dmp
    • memory/1288-55-0x0000000000000000-mapping.dmp
    • memory/1352-81-0x0000000000000000-mapping.dmp
    • memory/1352-97-0x0000000000000000-mapping.dmp
    • memory/1548-53-0x00000000762D1000-0x00000000762D3000-memory.dmp
      Filesize

      8KB

    • memory/1688-59-0x0000000000000000-mapping.dmp
    • memory/1696-84-0x0000000000000000-mapping.dmp
    • memory/1696-95-0x0000000002520000-0x000000000316A000-memory.dmp
      Filesize

      12.3MB

    • memory/1696-93-0x0000000002520000-0x000000000316A000-memory.dmp
      Filesize

      12.3MB

    • memory/1704-94-0x0000000000212000-0x0000000000214000-memory.dmp
      Filesize

      8KB

    • memory/1704-92-0x0000000000211000-0x0000000000212000-memory.dmp
      Filesize

      4KB

    • memory/1704-91-0x0000000000210000-0x0000000000211000-memory.dmp
      Filesize

      4KB

    • memory/1704-85-0x0000000000000000-mapping.dmp
    • memory/1772-60-0x0000000000000000-mapping.dmp