Analysis

  • max time kernel
    49s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-03-2023 14:38

General

  • Target

    78973c8f956a77c6c88aa4b508ce289d2c59966e1e7f2af4fc9cfd9e2368df66.exe

  • Size

    12.9MB

  • MD5

    a364b35d4dbdcf328367df843a6286c1

  • SHA1

    31a54c5118109afa7d5c7c465bb4d3b25c947284

  • SHA256

    78973c8f956a77c6c88aa4b508ce289d2c59966e1e7f2af4fc9cfd9e2368df66

  • SHA512

    e0687836489ea4cf25fb2b58105a46666a46a447acd01e291a5646928a12e469031f2936087cded0e7eee869cb6e71784c588cd61812387073ba4d0b637c6826

  • SSDEEP

    196608:Lg+Aalc1yGZIh6L5iYl/dsy+7d3tFELLs1cAm6f971YAmX1ZK1vauo9Dn:Lgsl5hef1k7ptmQbm6fnmlZsoRn

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

storage

C2

xmarvel.ddns.net:4782

2.58.56.188:4782

Mutex

Slbw7KtgA7WecQEqcR

Attributes
  • encryption_key

    BTg0dEybEXwn6MM90CP2

  • install_name

    ccleaner.exe

  • log_directory

    windowfirewalls

  • reconnect_delay

    1

  • startup_key

    windowsfirewall.msc

  • subdirectory

    windowsfirewall

Extracted

Family

limerat

Wallets

13WHQ6XEobZYNAjHZPJHkDuzMS8TpgkRqm

Attributes
  • aes_key

    key

  • antivm

    true

  • c2_url

    https://pastebin.com/raw/nW4J6TiP

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    windowsdefender.exe

  • main_folder

    AppData

  • pin_spread

    false

  • sub_folder

    \

  • usb_spread

    true

Signatures

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 9 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • AutoIT Executable 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 4 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 5 IoCs

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

  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78973c8f956a77c6c88aa4b508ce289d2c59966e1e7f2af4fc9cfd9e2368df66.exe
    "C:\Users\Admin\AppData\Local\Temp\78973c8f956a77c6c88aa4b508ce289d2c59966e1e7f2af4fc9cfd9e2368df66.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:4608
    • C:\Users\Admin\AppData\Local\Temp\OHITWG.exe
      "C:\Users\Admin\AppData\Local\Temp\OHITWG.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "windowsfirewall.msc" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\OHITWG.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:1892
      • C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe
        "C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4404
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "windowsfirewall.msc" /sc ONLOGON /tr "C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe" /rl HIGHEST /f
          4⤵
          • Creates scheduled task(s)
          PID:3396
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /tn "WINDOWSSYSTEMHOST" /tr "C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe" /sc MINUTE /MO 1
          4⤵
          • Creates scheduled task(s)
          PID:1280
    • C:\Users\Admin\AppData\Local\Temp\HMAGXL.exe
      "C:\Users\Admin\AppData\Local\Temp\HMAGXL.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4828
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\windowsdefender.exe'"
        3⤵
        • Creates scheduled task(s)
        PID:4496
      • C:\Users\Admin\AppData\Roaming\windowsdefender.exe
        "C:\Users\Admin\AppData\Roaming\windowsdefender.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:3400
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c schtasks /create /tn NULXGA.exe /tr C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe /sc minute /mo 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1572
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn NULXGA.exe /tr C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe /sc minute /mo 1
        3⤵
        • Creates scheduled task(s)
        PID:3648
    • C:\Windows\SysWOW64\WSCript.exe
      WSCript C:\Users\Admin\AppData\Local\Temp\NULXGA.vbs
      2⤵
        PID:2396
    • C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe
      C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe
      1⤵
      • Executes dropped EXE
      PID:548
    • C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe
      C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe
      1⤵
        PID:4476
      • C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe
        C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe
        1⤵
          PID:2516
        • C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe
          C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe
          1⤵
            PID:1200
          • C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe
            C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe
            1⤵
              PID:2036

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ccleaner.exe.log

              Filesize

              701B

              MD5

              5de8527438c860bfa3140dc420a03e52

              SHA1

              235af682986b3292f20d8d71a8671353f5d6e16d

              SHA256

              d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

              SHA512

              77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

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

              Filesize

              28KB

              MD5

              7cf120a9dad95a45232d7d6f3f87b067

              SHA1

              55b96683b6b78888e1d0463fed961b30c014dde7

              SHA256

              9449691939856bd53ccb28071c5fec85da01ba6e113e9088f545857171b5f7a3

              SHA512

              22eaa765f6ac881b3a47a5e614f1ef15abdb29f1aa8891fd90c05817faeb3a14a32c8661bae1760cace254784ff6b8079002ed9d06ff062390df976d15565efd

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

              Filesize

              28KB

              MD5

              7cf120a9dad95a45232d7d6f3f87b067

              SHA1

              55b96683b6b78888e1d0463fed961b30c014dde7

              SHA256

              9449691939856bd53ccb28071c5fec85da01ba6e113e9088f545857171b5f7a3

              SHA512

              22eaa765f6ac881b3a47a5e614f1ef15abdb29f1aa8891fd90c05817faeb3a14a32c8661bae1760cace254784ff6b8079002ed9d06ff062390df976d15565efd

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

              Filesize

              28KB

              MD5

              7cf120a9dad95a45232d7d6f3f87b067

              SHA1

              55b96683b6b78888e1d0463fed961b30c014dde7

              SHA256

              9449691939856bd53ccb28071c5fec85da01ba6e113e9088f545857171b5f7a3

              SHA512

              22eaa765f6ac881b3a47a5e614f1ef15abdb29f1aa8891fd90c05817faeb3a14a32c8661bae1760cace254784ff6b8079002ed9d06ff062390df976d15565efd

            • C:\Users\Admin\AppData\Local\Temp\NULXGA.vbs

              Filesize

              948B

              MD5

              2d94dc5e1b1e922deaf3119b1b1d8648

              SHA1

              c85c5d042162fb93d4203a11be584e8bac150f68

              SHA256

              bb9979103ac1014befba3c91e7447e718e39fc878175444273eebbc11f72d7ab

              SHA512

              02fff2db493a4252a4ab8a6f10dffcb888c13e909825c40a4eeab305ac2221f27551b5a7772661ff5b0efa3c74163f0e8b1f0b45d940cd2187c72b4d73725ab4

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

              Filesize

              288KB

              MD5

              473dada2898cd0c3f7bb193e784211a4

              SHA1

              f9d24e4d578a240df8cb7791145f2a65cdc2a5b8

              SHA256

              827530d82fa9c5ad081f6ea918a136fc9c13d57dfdfc49f14947a68083cb6fce

              SHA512

              3c8a6fb530e763f7d192f9631932fe884bada3d54ea089fc9e36280fc7731d8544c1fd8d81a8d546849ea163a6e14db2e37fc6aa4b24c6eb17c161bfbb36dbb6

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

              Filesize

              288KB

              MD5

              473dada2898cd0c3f7bb193e784211a4

              SHA1

              f9d24e4d578a240df8cb7791145f2a65cdc2a5b8

              SHA256

              827530d82fa9c5ad081f6ea918a136fc9c13d57dfdfc49f14947a68083cb6fce

              SHA512

              3c8a6fb530e763f7d192f9631932fe884bada3d54ea089fc9e36280fc7731d8544c1fd8d81a8d546849ea163a6e14db2e37fc6aa4b24c6eb17c161bfbb36dbb6

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

              Filesize

              288KB

              MD5

              473dada2898cd0c3f7bb193e784211a4

              SHA1

              f9d24e4d578a240df8cb7791145f2a65cdc2a5b8

              SHA256

              827530d82fa9c5ad081f6ea918a136fc9c13d57dfdfc49f14947a68083cb6fce

              SHA512

              3c8a6fb530e763f7d192f9631932fe884bada3d54ea089fc9e36280fc7731d8544c1fd8d81a8d546849ea163a6e14db2e37fc6aa4b24c6eb17c161bfbb36dbb6

            • C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe

              Filesize

              12.9MB

              MD5

              a364b35d4dbdcf328367df843a6286c1

              SHA1

              31a54c5118109afa7d5c7c465bb4d3b25c947284

              SHA256

              78973c8f956a77c6c88aa4b508ce289d2c59966e1e7f2af4fc9cfd9e2368df66

              SHA512

              e0687836489ea4cf25fb2b58105a46666a46a447acd01e291a5646928a12e469031f2936087cded0e7eee869cb6e71784c588cd61812387073ba4d0b637c6826

            • C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe

              Filesize

              12.9MB

              MD5

              a364b35d4dbdcf328367df843a6286c1

              SHA1

              31a54c5118109afa7d5c7c465bb4d3b25c947284

              SHA256

              78973c8f956a77c6c88aa4b508ce289d2c59966e1e7f2af4fc9cfd9e2368df66

              SHA512

              e0687836489ea4cf25fb2b58105a46666a46a447acd01e291a5646928a12e469031f2936087cded0e7eee869cb6e71784c588cd61812387073ba4d0b637c6826

            • C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe

              Filesize

              12.9MB

              MD5

              a364b35d4dbdcf328367df843a6286c1

              SHA1

              31a54c5118109afa7d5c7c465bb4d3b25c947284

              SHA256

              78973c8f956a77c6c88aa4b508ce289d2c59966e1e7f2af4fc9cfd9e2368df66

              SHA512

              e0687836489ea4cf25fb2b58105a46666a46a447acd01e291a5646928a12e469031f2936087cded0e7eee869cb6e71784c588cd61812387073ba4d0b637c6826

            • C:\Users\Admin\AppData\Roaming\Windata\wfmsc.exe

              Filesize

              12.9MB

              MD5

              a364b35d4dbdcf328367df843a6286c1

              SHA1

              31a54c5118109afa7d5c7c465bb4d3b25c947284

              SHA256

              78973c8f956a77c6c88aa4b508ce289d2c59966e1e7f2af4fc9cfd9e2368df66

              SHA512

              e0687836489ea4cf25fb2b58105a46666a46a447acd01e291a5646928a12e469031f2936087cded0e7eee869cb6e71784c588cd61812387073ba4d0b637c6826

            • C:\Users\Admin\AppData\Roaming\windowsdefender.exe

              Filesize

              28KB

              MD5

              7cf120a9dad95a45232d7d6f3f87b067

              SHA1

              55b96683b6b78888e1d0463fed961b30c014dde7

              SHA256

              9449691939856bd53ccb28071c5fec85da01ba6e113e9088f545857171b5f7a3

              SHA512

              22eaa765f6ac881b3a47a5e614f1ef15abdb29f1aa8891fd90c05817faeb3a14a32c8661bae1760cace254784ff6b8079002ed9d06ff062390df976d15565efd

            • C:\Users\Admin\AppData\Roaming\windowsdefender.exe

              Filesize

              28KB

              MD5

              7cf120a9dad95a45232d7d6f3f87b067

              SHA1

              55b96683b6b78888e1d0463fed961b30c014dde7

              SHA256

              9449691939856bd53ccb28071c5fec85da01ba6e113e9088f545857171b5f7a3

              SHA512

              22eaa765f6ac881b3a47a5e614f1ef15abdb29f1aa8891fd90c05817faeb3a14a32c8661bae1760cace254784ff6b8079002ed9d06ff062390df976d15565efd

            • C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe

              Filesize

              288KB

              MD5

              473dada2898cd0c3f7bb193e784211a4

              SHA1

              f9d24e4d578a240df8cb7791145f2a65cdc2a5b8

              SHA256

              827530d82fa9c5ad081f6ea918a136fc9c13d57dfdfc49f14947a68083cb6fce

              SHA512

              3c8a6fb530e763f7d192f9631932fe884bada3d54ea089fc9e36280fc7731d8544c1fd8d81a8d546849ea163a6e14db2e37fc6aa4b24c6eb17c161bfbb36dbb6

            • C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe

              Filesize

              288KB

              MD5

              473dada2898cd0c3f7bb193e784211a4

              SHA1

              f9d24e4d578a240df8cb7791145f2a65cdc2a5b8

              SHA256

              827530d82fa9c5ad081f6ea918a136fc9c13d57dfdfc49f14947a68083cb6fce

              SHA512

              3c8a6fb530e763f7d192f9631932fe884bada3d54ea089fc9e36280fc7731d8544c1fd8d81a8d546849ea163a6e14db2e37fc6aa4b24c6eb17c161bfbb36dbb6

            • C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe

              Filesize

              288KB

              MD5

              473dada2898cd0c3f7bb193e784211a4

              SHA1

              f9d24e4d578a240df8cb7791145f2a65cdc2a5b8

              SHA256

              827530d82fa9c5ad081f6ea918a136fc9c13d57dfdfc49f14947a68083cb6fce

              SHA512

              3c8a6fb530e763f7d192f9631932fe884bada3d54ea089fc9e36280fc7731d8544c1fd8d81a8d546849ea163a6e14db2e37fc6aa4b24c6eb17c161bfbb36dbb6

            • C:\Windows\SysWOW64\windowsfirewall\ccleaner.exe

              Filesize

              288KB

              MD5

              473dada2898cd0c3f7bb193e784211a4

              SHA1

              f9d24e4d578a240df8cb7791145f2a65cdc2a5b8

              SHA256

              827530d82fa9c5ad081f6ea918a136fc9c13d57dfdfc49f14947a68083cb6fce

              SHA512

              3c8a6fb530e763f7d192f9631932fe884bada3d54ea089fc9e36280fc7731d8544c1fd8d81a8d546849ea163a6e14db2e37fc6aa4b24c6eb17c161bfbb36dbb6

            • memory/1200-205-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

              Filesize

              64KB

            • memory/1972-168-0x00000000050D0000-0x0000000005674000-memory.dmp

              Filesize

              5.6MB

            • memory/1972-162-0x0000000000060000-0x00000000000AE000-memory.dmp

              Filesize

              312KB

            • memory/1972-170-0x0000000004B20000-0x0000000004BB2000-memory.dmp

              Filesize

              584KB

            • memory/1972-174-0x0000000005EC0000-0x0000000005EFC000-memory.dmp

              Filesize

              240KB

            • memory/1972-173-0x0000000005AA0000-0x0000000005AB2000-memory.dmp

              Filesize

              72KB

            • memory/1972-171-0x0000000004A00000-0x0000000004A10000-memory.dmp

              Filesize

              64KB

            • memory/1972-172-0x0000000004E30000-0x0000000004E96000-memory.dmp

              Filesize

              408KB

            • memory/3400-194-0x0000000004F40000-0x0000000004F50000-memory.dmp

              Filesize

              64KB

            • memory/3400-196-0x0000000004F40000-0x0000000004F50000-memory.dmp

              Filesize

              64KB

            • memory/4404-182-0x0000000004F10000-0x0000000004F20000-memory.dmp

              Filesize

              64KB

            • memory/4404-195-0x0000000004F10000-0x0000000004F20000-memory.dmp

              Filesize

              64KB

            • memory/4404-197-0x00000000066F0000-0x00000000066FA000-memory.dmp

              Filesize

              40KB

            • memory/4828-165-0x00000000051B0000-0x000000000524C000-memory.dmp

              Filesize

              624KB

            • memory/4828-175-0x00000000050E0000-0x00000000050F0000-memory.dmp

              Filesize

              64KB

            • memory/4828-161-0x00000000007D0000-0x00000000007DC000-memory.dmp

              Filesize

              48KB