Analysis

  • max time kernel
    143s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-01-2025 16:57

General

  • Target

    wawenoKey.exe

  • Size

    348KB

  • MD5

    19cde915d18709c0de2e5acd6acc41ce

  • SHA1

    5478e37f33533ccb57b73c94e613f39f95db3e06

  • SHA256

    f1bcf4d98fef3665492ca5fbf5296fa06a4adb2b3b9681b110a148f56ed1aaf6

  • SHA512

    a1bba884336a8e7a370b218ae70427d791587c25e2e9f52ee59459df1cf60bf7ef8a488e1d159c9b501329d7049349637a23d5b2e5fbe32e4a6fd1884c0b068d

  • SSDEEP

    6144:pX6bPXhLApfpuCmvXtjghbSS4JmtD15FJYa8O:JmhApePt0J4JmlbFJY3O

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

Client2:4782

Mutex

QSR_MUTEX_RH6ctD844WCagY5nuM

Attributes
  • encryption_key

    nyassPD33yuypk3HMAZZ

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT 5 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 8 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 9 IoCs
  • Looks up external IP address via web service 4 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 37 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 9 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\wawenoKey.exe
    "C:\Users\Admin\AppData\Local\Temp\wawenoKey.exe"
    1⤵
    • Quasar RAT
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\7yvqTLylk4Ga.bat" "
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2860
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2244
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 10 localhost
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1848
        • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1612
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\zvTnjuIqwBO4.bat" "
            5⤵
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1092
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              6⤵
              • System Location Discovery: System Language Discovery
              PID:848
            • C:\Windows\SysWOW64\PING.EXE
              ping -n 10 localhost
              6⤵
              • System Location Discovery: System Language Discovery
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:680
            • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
              "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:296
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c ""C:\Users\Admin\AppData\Local\Temp\IWJ1GYijK549.bat" "
                7⤵
                • Loads dropped DLL
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:2204
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  8⤵
                  • System Location Discovery: System Language Discovery
                  PID:1416
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  8⤵
                  • System Location Discovery: System Language Discovery
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2344
                • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                  8⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:2408
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c ""C:\Users\Admin\AppData\Local\Temp\HWSR7bNRXoZR.bat" "
                    9⤵
                    • Loads dropped DLL
                    • System Location Discovery: System Language Discovery
                    • Suspicious use of WriteProcessMemory
                    PID:1664
                    • C:\Windows\SysWOW64\chcp.com
                      chcp 65001
                      10⤵
                      • System Location Discovery: System Language Discovery
                      PID:852
                    • C:\Windows\SysWOW64\PING.EXE
                      ping -n 10 localhost
                      10⤵
                      • System Location Discovery: System Language Discovery
                      • System Network Configuration Discovery: Internet Connection Discovery
                      • Runs ping.exe
                      PID:2260
                    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                      10⤵
                      • Executes dropped EXE
                      • System Location Discovery: System Language Discovery
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1964
                      • C:\Windows\SysWOW64\cmd.exe
                        cmd /c ""C:\Users\Admin\AppData\Local\Temp\wNKmO4oxtUri.bat" "
                        11⤵
                        • Loads dropped DLL
                        • System Location Discovery: System Language Discovery
                        PID:2100
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          12⤵
                          • System Location Discovery: System Language Discovery
                          PID:2096
                        • C:\Windows\SysWOW64\PING.EXE
                          ping -n 10 localhost
                          12⤵
                          • System Location Discovery: System Language Discovery
                          • System Network Configuration Discovery: Internet Connection Discovery
                          • Runs ping.exe
                          PID:540
                        • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                          "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                          12⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          • Suspicious use of AdjustPrivilegeToken
                          PID:3004
                          • C:\Windows\SysWOW64\cmd.exe
                            cmd /c ""C:\Users\Admin\AppData\Local\Temp\trpIDZvQHNY0.bat" "
                            13⤵
                            • Loads dropped DLL
                            • System Location Discovery: System Language Discovery
                            PID:892
                            • C:\Windows\SysWOW64\chcp.com
                              chcp 65001
                              14⤵
                              • System Location Discovery: System Language Discovery
                              PID:2656
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 10 localhost
                              14⤵
                              • System Location Discovery: System Language Discovery
                              • System Network Configuration Discovery: Internet Connection Discovery
                              • Runs ping.exe
                              PID:3060
                            • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                              14⤵
                              • Executes dropped EXE
                              • System Location Discovery: System Language Discovery
                              • Suspicious use of AdjustPrivilegeToken
                              PID:2976
                              • C:\Windows\SysWOW64\cmd.exe
                                cmd /c ""C:\Users\Admin\AppData\Local\Temp\koNFU8GUSUgU.bat" "
                                15⤵
                                • Loads dropped DLL
                                • System Location Discovery: System Language Discovery
                                PID:2644
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 65001
                                  16⤵
                                  • System Location Discovery: System Language Discovery
                                  PID:2040
                                • C:\Windows\SysWOW64\PING.EXE
                                  ping -n 10 localhost
                                  16⤵
                                  • System Location Discovery: System Language Discovery
                                  • System Network Configuration Discovery: Internet Connection Discovery
                                  • Runs ping.exe
                                  PID:2420
                                • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                  16⤵
                                  • Executes dropped EXE
                                  • System Location Discovery: System Language Discovery
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:920
                                  • C:\Windows\SysWOW64\cmd.exe
                                    cmd /c ""C:\Users\Admin\AppData\Local\Temp\gGG4VVxagHwx.bat" "
                                    17⤵
                                    • Loads dropped DLL
                                    • System Location Discovery: System Language Discovery
                                    PID:2380
                                    • C:\Windows\SysWOW64\chcp.com
                                      chcp 65001
                                      18⤵
                                      • System Location Discovery: System Language Discovery
                                      PID:2088
                                    • C:\Windows\SysWOW64\PING.EXE
                                      ping -n 10 localhost
                                      18⤵
                                      • System Location Discovery: System Language Discovery
                                      • System Network Configuration Discovery: Internet Connection Discovery
                                      • Runs ping.exe
                                      PID:2172
                                    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                      18⤵
                                      • Executes dropped EXE
                                      • System Location Discovery: System Language Discovery
                                      • Suspicious use of AdjustPrivilegeToken
                                      PID:328
                                      • C:\Windows\SysWOW64\cmd.exe
                                        cmd /c ""C:\Users\Admin\AppData\Local\Temp\7wE8YneIay7H.bat" "
                                        19⤵
                                        • System Location Discovery: System Language Discovery
                                        PID:336
                                        • C:\Windows\SysWOW64\chcp.com
                                          chcp 65001
                                          20⤵
                                          • System Location Discovery: System Language Discovery
                                          PID:1956
                                        • C:\Windows\SysWOW64\PING.EXE
                                          ping -n 10 localhost
                                          20⤵
                                          • System Location Discovery: System Language Discovery
                                          • System Network Configuration Discovery: Internet Connection Discovery
                                          • Runs ping.exe
                                          PID:1972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\7wE8YneIay7H.bat

    Filesize

    207B

    MD5

    1a7794ffcee48569a6f0e4b69fbea7bf

    SHA1

    5dadf5d4b9fcccccda71c673be463774ba453c81

    SHA256

    bacd95ee57ad531a3398d5f1077c794a2181c198e9e4d54aeb6165d0d6b6b8f3

    SHA512

    c8126012695e3576b41fcc482994157cd0ce4a9a0d71d430b2bac3eeb5bb32b77b66c18135c0b9be90c22b7f097976cb8c9e23382e2d4f0d3a3edf024d94fca2

  • C:\Users\Admin\AppData\Local\Temp\7yvqTLylk4Ga.bat

    Filesize

    207B

    MD5

    338b45cab1b2f844529030c62c798f96

    SHA1

    c9426bf3e82d22a74e6454a28f17fe91315da4be

    SHA256

    3894b4548b97c1506c5e1e1e749469f986911bfffaf24d4ac0ec29b0864ed0a0

    SHA512

    58e7feed214b8460d016e08e6a1513a272f570c5ca401efca85f6f9ee1b1084ed012114195009b8c427cadea8304ea46088e3202bafcb5c1295aeabcca09ee99

  • C:\Users\Admin\AppData\Local\Temp\HWSR7bNRXoZR.bat

    Filesize

    207B

    MD5

    4dd60f27194f680b54f76bf2890a0ecb

    SHA1

    f4faff1618ebd23c564336402ab7378fc0d7f76c

    SHA256

    6805c4d72dae38e69d061989988d2c3c5551d514a2b38780c4718bc16f9f2a26

    SHA512

    8d8363765caf2700c9e509c7bcf310ef1dfc1fff5ae6611b5f8472ab3bedbf96636fac8b5fda3311186852b69f5b5de5968213775f4459210d6ab02d56e70657

  • C:\Users\Admin\AppData\Local\Temp\IWJ1GYijK549.bat

    Filesize

    207B

    MD5

    e3e9b8a71e0254670826caa4f168398d

    SHA1

    594f7591e5705f51fd12562aae0c8c99f64ea993

    SHA256

    acd6850b6cf559ae337c2c70119cfdc17043f9005dc6c401befe140ae3676cca

    SHA512

    f29342abc90d28911807c5e6677b316e1e9a9d2e98158a72624eab6be476ffa4d82fd068c31a039a9c590e8523c345b770f7b6a1fb2db1605b6f1be7819bb816

  • C:\Users\Admin\AppData\Local\Temp\gGG4VVxagHwx.bat

    Filesize

    207B

    MD5

    cc4bb0cd0b6208d971efa8da7c8606bb

    SHA1

    c8fc24362f858f963c75b63ad514e92c7c3c41d2

    SHA256

    f6fb33ef1ae55d8d21848aac012d606a5e38a33ce3c2e4dc790d9b088e33e8e4

    SHA512

    ee0ecb5f6bf09097ab500539e9bfcdc61ef0c917f138123b3700bedc744b7d54ea6b0b779c236158a442e5fa19f099871d19ac8f0489b0382eec3a1f6a7d9086

  • C:\Users\Admin\AppData\Local\Temp\koNFU8GUSUgU.bat

    Filesize

    207B

    MD5

    e0e81d210a32cf7bbdf082d80f1e3768

    SHA1

    648abf47470d37fac35e3e4379e663a9ea21731a

    SHA256

    28c105751131483c9ddac1e7a42b72bfd75328da4369eaccb23898b710f7517f

    SHA512

    cdff49a8785ef54f84b716cc8817b4596e37668bc50841f48278f1ef87f8690ad0fa1a98c133faf01b42739a1db6aa2fab26c12210a87d8d86f61400f18e8d98

  • C:\Users\Admin\AppData\Local\Temp\trpIDZvQHNY0.bat

    Filesize

    207B

    MD5

    00380a07094930d9968f322b6bc7cd91

    SHA1

    87d6d95ae54e3ec6b99507e3ee596bad98f10446

    SHA256

    a807da158f00cf940565139032fed097870c187fd10628d704104506d4a11cdd

    SHA512

    2eb6573831272e6a6644499fbf36fd10831fd5dd366699ae7ae22b23c1046c67c18481e266141275258580d4ad724475e86c1a400b21557ce74a09eedca92f4f

  • C:\Users\Admin\AppData\Local\Temp\wNKmO4oxtUri.bat

    Filesize

    207B

    MD5

    730ea3e471fba0a5fd60825f7bab1d7c

    SHA1

    3b7bf7dc411bbbf75f204e6c5f0348415c30efc1

    SHA256

    351127ce6ae499ff1d4fdf106b92b6b5210c6b91b404e470e7fa2cd0f8dc0a93

    SHA512

    013fdc7cedad6560850edfdfdb644283ef0333f85ec9aa305298bb7e34a44db00f8c8534b6a38e82eea2ffb3a0c412c7e3d4c4241d55d3037ed899edad7a62e1

  • C:\Users\Admin\AppData\Local\Temp\zvTnjuIqwBO4.bat

    Filesize

    207B

    MD5

    8f082e45aef96e40f04cff093eff2514

    SHA1

    427242ae1fba3c5e037708b099eaf84279dd10d4

    SHA256

    915d3b996b43295518101f369b680c9786de035ae6e1043c3928ce7daffffe0b

    SHA512

    32bc4f74e5c9b218230c4185d16fa2b743f491c2ce085ae91d3d364857dbf804a59dd3e97c8bb81bd20d0953da72baced00a0194959a70316e827b44e896de51

  • \Users\Admin\AppData\Roaming\SubDir\Client.exe

    Filesize

    348KB

    MD5

    19cde915d18709c0de2e5acd6acc41ce

    SHA1

    5478e37f33533ccb57b73c94e613f39f95db3e06

    SHA256

    f1bcf4d98fef3665492ca5fbf5296fa06a4adb2b3b9681b110a148f56ed1aaf6

    SHA512

    a1bba884336a8e7a370b218ae70427d791587c25e2e9f52ee59459df1cf60bf7ef8a488e1d159c9b501329d7049349637a23d5b2e5fbe32e4a6fd1884c0b068d

  • memory/296-37-0x0000000001210000-0x000000000126E000-memory.dmp

    Filesize

    376KB

  • memory/328-106-0x0000000000DC0000-0x0000000000E1E000-memory.dmp

    Filesize

    376KB

  • memory/920-94-0x00000000001F0000-0x000000000024E000-memory.dmp

    Filesize

    376KB

  • memory/1612-25-0x00000000009A0000-0x00000000009FE000-memory.dmp

    Filesize

    376KB

  • memory/2408-49-0x0000000001210000-0x000000000126E000-memory.dmp

    Filesize

    376KB

  • memory/2716-22-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2716-9-0x0000000000810000-0x000000000086E000-memory.dmp

    Filesize

    376KB

  • memory/2716-11-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2716-10-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2736-0-0x000000007465E000-0x000000007465F000-memory.dmp

    Filesize

    4KB

  • memory/2736-12-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2736-2-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2736-1-0x0000000000280000-0x00000000002DE000-memory.dmp

    Filesize

    376KB