Analysis

  • max time kernel
    596s
  • max time network
    606s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    15-06-2024 07:35

General

  • Target

    uni/Uni - Copy (101) - Copy - Copy - Copy - Copy.exe

  • Size

    409KB

  • MD5

    b70fdac25a99501e3cae11f1b775249e

  • SHA1

    3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

  • SHA256

    51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

  • SHA512

    43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

  • SSDEEP

    12288:gpbJjGut6AoE3hVVdFaC/eZPTMTDlpgfJCKuMsVs:oVaurMLcDlpRKai

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SeroXen

C2

panel-slave.gl.at.ply.gg:57059

panel-slave.gl.at.ply.gg:27892

Mutex

$Sxr-rpL8EItHN3pqIQQVy2

Attributes
  • encryption_key

    Lme7VBS3l58VwLM69PNM

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    SeroXen

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 11 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 9 IoCs
  • Looks up external IP address via web service 20 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).

  • Creates scheduled task(s) 1 TTPs 10 IoCs

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

  • Runs ping.exe 1 TTPs 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (101) - Copy - Copy - Copy - Copy.exe
    "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (101) - Copy - Copy - Copy - Copy.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:492
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (101) - Copy - Copy - Copy - Copy.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:2508
    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2540
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:2440
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\F8yxQcruEb0r.bat" "
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1868
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
            PID:2384
          • C:\Windows\SysWOW64\PING.EXE
            ping -n 10 localhost
            4⤵
            • Runs ping.exe
            PID:2952
          • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
            "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2488
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
              5⤵
              • Creates scheduled task(s)
              PID:1736
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\DIEpQci1aATM.bat" "
              5⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2232
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                6⤵
                  PID:1704
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  6⤵
                  • Runs ping.exe
                  PID:2328
                • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:2356
                  • C:\Windows\SysWOW64\schtasks.exe
                    "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                    7⤵
                    • Creates scheduled task(s)
                    PID:2116
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c ""C:\Users\Admin\AppData\Local\Temp\sE1Q8jlstayg.bat" "
                    7⤵
                    • Loads dropped DLL
                    PID:2528
                    • C:\Windows\SysWOW64\chcp.com
                      chcp 65001
                      8⤵
                        PID:1792
                      • C:\Windows\SysWOW64\PING.EXE
                        ping -n 10 localhost
                        8⤵
                        • Runs ping.exe
                        PID:2788
                      • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                        "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                        8⤵
                        • Executes dropped EXE
                        • Suspicious use of AdjustPrivilegeToken
                        PID:2764
                        • C:\Windows\SysWOW64\schtasks.exe
                          "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                          9⤵
                          • Creates scheduled task(s)
                          PID:992
                        • C:\Windows\SysWOW64\cmd.exe
                          cmd /c ""C:\Users\Admin\AppData\Local\Temp\U90I35eQfCn6.bat" "
                          9⤵
                          • Loads dropped DLL
                          PID:1808
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 65001
                            10⤵
                              PID:1876
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 10 localhost
                              10⤵
                              • Runs ping.exe
                              PID:1892
                            • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                              10⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:492
                              • C:\Windows\SysWOW64\schtasks.exe
                                "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                                11⤵
                                • Creates scheduled task(s)
                                PID:1996
                              • C:\Windows\SysWOW64\cmd.exe
                                cmd /c ""C:\Users\Admin\AppData\Local\Temp\DehEPbe85Trt.bat" "
                                11⤵
                                • Loads dropped DLL
                                PID:1760
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 65001
                                  12⤵
                                    PID:1352
                                  • C:\Windows\SysWOW64\PING.EXE
                                    ping -n 10 localhost
                                    12⤵
                                    • Runs ping.exe
                                    PID:328
                                  • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                    "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                    12⤵
                                    • Executes dropped EXE
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:532
                                    • C:\Windows\SysWOW64\schtasks.exe
                                      "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                                      13⤵
                                      • Creates scheduled task(s)
                                      PID:2644
                                    • C:\Windows\SysWOW64\cmd.exe
                                      cmd /c ""C:\Users\Admin\AppData\Local\Temp\mYrMXENMLIyP.bat" "
                                      13⤵
                                      • Loads dropped DLL
                                      PID:2116
                                      • C:\Windows\SysWOW64\chcp.com
                                        chcp 65001
                                        14⤵
                                          PID:2620
                                        • C:\Windows\SysWOW64\PING.EXE
                                          ping -n 10 localhost
                                          14⤵
                                          • Runs ping.exe
                                          PID:3024
                                        • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                          "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                          14⤵
                                          • Executes dropped EXE
                                          • Suspicious use of AdjustPrivilegeToken
                                          PID:2656
                                          • C:\Windows\SysWOW64\schtasks.exe
                                            "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                                            15⤵
                                            • Creates scheduled task(s)
                                            PID:1364
                                          • C:\Windows\SysWOW64\cmd.exe
                                            cmd /c ""C:\Users\Admin\AppData\Local\Temp\Y4M1gTYNHNk7.bat" "
                                            15⤵
                                            • Loads dropped DLL
                                            PID:2428
                                            • C:\Windows\SysWOW64\chcp.com
                                              chcp 65001
                                              16⤵
                                                PID:2416
                                              • C:\Windows\SysWOW64\PING.EXE
                                                ping -n 10 localhost
                                                16⤵
                                                • Runs ping.exe
                                                PID:2436
                                              • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                                "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                                16⤵
                                                • Executes dropped EXE
                                                • Suspicious use of AdjustPrivilegeToken
                                                PID:1684
                                                • C:\Windows\SysWOW64\schtasks.exe
                                                  "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                                                  17⤵
                                                  • Creates scheduled task(s)
                                                  PID:2492
                                                • C:\Windows\SysWOW64\cmd.exe
                                                  cmd /c ""C:\Users\Admin\AppData\Local\Temp\D09dOabFZnGR.bat" "
                                                  17⤵
                                                  • Loads dropped DLL
                                                  PID:1988
                                                  • C:\Windows\SysWOW64\chcp.com
                                                    chcp 65001
                                                    18⤵
                                                      PID:1128
                                                    • C:\Windows\SysWOW64\PING.EXE
                                                      ping -n 10 localhost
                                                      18⤵
                                                      • Runs ping.exe
                                                      PID:1088
                                                    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                                      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                                      18⤵
                                                      • Executes dropped EXE
                                                      • Suspicious use of AdjustPrivilegeToken
                                                      PID:2496
                    • C:\Windows\SysWOW64\SCHTASKS.exe
                      "SCHTASKS.exe" /create /tn "$77Uni - Copy (101) - Copy - Copy - Copy - Copy.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (101) - Copy - Copy - Copy - Copy.exe'" /sc onlogon /rl HIGHEST
                      2⤵
                      • Creates scheduled task(s)
                      PID:1724

                  Network

                  MITRE ATT&CK Matrix ATT&CK v13

                  Execution

                  Scheduled Task/Job

                  1
                  T1053

                  Persistence

                  Scheduled Task/Job

                  1
                  T1053

                  Privilege Escalation

                  Scheduled Task/Job

                  1
                  T1053

                  Discovery

                  System Information Discovery

                  1
                  T1082

                  Remote System Discovery

                  1
                  T1018

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • C:\Users\Admin\AppData\Local\Temp\D09dOabFZnGR.bat
                    Filesize

                    207B

                    MD5

                    163a96def42c3403d09d3f8d018e1613

                    SHA1

                    7e2cb41328b1482118da6b738962cd03f3075ec7

                    SHA256

                    cceead55dd455d247221635b9139d47ebc6f4811e5a2f6534bd81623fc28e23d

                    SHA512

                    8f50b7ec273a8950927c2e5a3ade4790b40551436de31fc2ad37c88724b3d3efa8c7064f98dd23b90880096c3c8d7e7e4efb15f2fd3307a343205a7919b5d366

                  • C:\Users\Admin\AppData\Local\Temp\DIEpQci1aATM.bat
                    Filesize

                    207B

                    MD5

                    6bec1befda9cf2dda800a38acf8fa999

                    SHA1

                    65c0889cbd5941676f2eca6fda83b4876b450cbe

                    SHA256

                    4ab79906bf4a52a14d83ece830108ff57d1d12da994296ab759e9f4a1266a45d

                    SHA512

                    aa7dba7304dcdb6fdac4246e406d8eefa320a5c4b648c72e229ab3f557415e405c39d4f9a6aab04cc886e980314d08e2fb499d457a9bfef01b886e84a0fd0082

                  • C:\Users\Admin\AppData\Local\Temp\DehEPbe85Trt.bat
                    Filesize

                    207B

                    MD5

                    692982512a37b4335898eaa868587389

                    SHA1

                    c2aec4ac56c62d28f88f004ea8542ac9bf349f26

                    SHA256

                    75e48031c7a93801e24c4a67115b6504cadc3fb810deec27adcdc5039cd6d438

                    SHA512

                    b0be05de9ad35cc442d537bcd09ae1cc0c9f026bcb88dee3f8e9e4922d59867e19818f074567aa190ff8578d70b58acff331f90cac8a8de437cc57eaf74c5da2

                  • C:\Users\Admin\AppData\Local\Temp\F8yxQcruEb0r.bat
                    Filesize

                    207B

                    MD5

                    597d18a8d309ca7c63e292e68482c0a8

                    SHA1

                    bbba92079322938d1ec0eec0513b7350014525ec

                    SHA256

                    8086b863572bd7bb1bcebc4ee997aeae9428ae9e49b844854971ea065a503413

                    SHA512

                    e9df6e162e1e5f8e9681a07333a8224227935cff2b23a4b266c37d2c087cfc824164202552535f354127e0e66249cd8eeebd900cb0446326785c324a8605e111

                  • C:\Users\Admin\AppData\Local\Temp\U90I35eQfCn6.bat
                    Filesize

                    207B

                    MD5

                    48171d787f9c382bb06e1fd68f4f78da

                    SHA1

                    e1333306ccea97171f720342bb0eb8cc9489af86

                    SHA256

                    68001f84b94bbf2e673a2cfa8face0d23185a2926a18b081236b5e261bed7fdf

                    SHA512

                    1b708f29f163b497674b7042b7d1c693e26a209623e20171181896f7217ab463f00d2e8bcd01f947c607767a037b7af292e58a676a23152fdf3e9dfa28239a53

                  • C:\Users\Admin\AppData\Local\Temp\Y4M1gTYNHNk7.bat
                    Filesize

                    207B

                    MD5

                    e34c081c00b8d142672ab541ec754948

                    SHA1

                    b0a0f995de42c52c1debcbda4adaee1b70e7851f

                    SHA256

                    7c770a011f8309684bb7e15db1a263cbd6733ea36547555a7ed6bee506d55793

                    SHA512

                    623c75cfc9a59b56c0d1a2d49354a06afc0db95e24c8b7d093f9977b8385fb695eebf795c89b584bf779097b8d844417d0e1a30e7460aef034d6f61d1233e96c

                  • C:\Users\Admin\AppData\Local\Temp\mYrMXENMLIyP.bat
                    Filesize

                    207B

                    MD5

                    ed11ae24f6f7566e1d53370e588c1f5d

                    SHA1

                    83f3fd83c48997e4a4c942f5d84bac79c43031ff

                    SHA256

                    943f74cf4f985758ec4020ecc61dd38eece008dfaea52ea61c99fb5484ca6580

                    SHA512

                    172186e14eef9e44af519b2669a27646f53b7e5eb459217cde25691dbcd20b510ea5f1ce5c4b0cfd0e1c69030c4c7529442a74b8479413b2f655029eb8b857d9

                  • C:\Users\Admin\AppData\Local\Temp\sE1Q8jlstayg.bat
                    Filesize

                    207B

                    MD5

                    2af45d14a49923d94dccef46e347ca88

                    SHA1

                    c771c11de4eea1f9d4ed6538418ab260d9af52d8

                    SHA256

                    38f43ec34cc749697d38007de243711026bc9bf4208c9ec69544fa7acc0a4247

                    SHA512

                    e1b267fa2e1702a03b6432ac44e14a8062172f72f7875088c336e47ee31c51c9731475dae23ce344f8246333be9300a22217c26911b3f709a67e0944c561af9b

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

                    409KB

                    MD5

                    b70fdac25a99501e3cae11f1b775249e

                    SHA1

                    3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

                    SHA256

                    51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

                    SHA512

                    43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

                  • memory/492-15-0x0000000073EB0000-0x000000007459E000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/492-0-0x0000000073EBE000-0x0000000073EBF000-memory.dmp
                    Filesize

                    4KB

                  • memory/492-4-0x0000000073EB0000-0x000000007459E000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/492-3-0x0000000073EBE000-0x0000000073EBF000-memory.dmp
                    Filesize

                    4KB

                  • memory/492-65-0x0000000000A30000-0x0000000000A9C000-memory.dmp
                    Filesize

                    432KB

                  • memory/492-2-0x0000000073EB0000-0x000000007459E000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/492-1-0x0000000000F90000-0x0000000000FFC000-memory.dmp
                    Filesize

                    432KB

                  • memory/532-77-0x0000000000240000-0x00000000002AC000-memory.dmp
                    Filesize

                    432KB

                  • memory/1684-101-0x0000000000D40000-0x0000000000DAC000-memory.dmp
                    Filesize

                    432KB

                  • memory/2356-41-0x0000000000C30000-0x0000000000C9C000-memory.dmp
                    Filesize

                    432KB

                  • memory/2488-29-0x0000000000110000-0x000000000017C000-memory.dmp
                    Filesize

                    432KB

                  • memory/2496-113-0x00000000010D0000-0x000000000113C000-memory.dmp
                    Filesize

                    432KB

                  • memory/2540-25-0x0000000073EB0000-0x000000007459E000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2540-16-0x0000000073EB0000-0x000000007459E000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2540-14-0x0000000073EB0000-0x000000007459E000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2540-13-0x0000000073EB0000-0x000000007459E000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2540-12-0x0000000000990000-0x00000000009FC000-memory.dmp
                    Filesize

                    432KB

                  • memory/2656-89-0x0000000000D40000-0x0000000000DAC000-memory.dmp
                    Filesize

                    432KB

                  • memory/2764-53-0x00000000002E0000-0x000000000034C000-memory.dmp
                    Filesize

                    432KB