Analysis

  • max time kernel
    33s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-03-2024 02:05

General

  • Target

    fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe

  • Size

    2.0MB

  • MD5

    3df05eb0338fe2e6ef8c5f0717223f04

  • SHA1

    e0cfae759348ed0a0b72eb484adbc2f52b37ac77

  • SHA256

    fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f

  • SHA512

    1270b98bced91805350cf3d61f195111179be74f399fc2f14015b28d314b17e9c3469a0b4dc22a0a86bef86341e88cd011ec372d187ac5358b303a4d227fa0d7

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYR:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YP

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

Extracted

Family

quasar

Version

1.3.0.0

Botnet

EbayProfiles

C2

5.8.88.191:443

sockartek.icu:443

Mutex

QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 3 IoCs
  • Detects executables containing common artifacts observed in infostealers 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 2 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Creates scheduled task(s) 1 TTPs 6 IoCs

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

  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe
    "C:\Users\Admin\AppData\Local\Temp\fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2780
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:964
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:4156
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      PID:4760
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:644
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:1648
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
            4⤵
            • Creates scheduled task(s)
            PID:2352
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\cbfPm8XDb5YV.bat" "
            4⤵
              PID:776
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4956
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:2432
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4048
                    • C:\Windows\SysWOW64\schtasks.exe
                      "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
                      6⤵
                      • Creates scheduled task(s)
                      PID:4532
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JVtkAIr3B3Il.bat" "
                      6⤵
                        PID:3668
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2020
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:4504
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4556
                              • C:\Windows\SysWOW64\schtasks.exe
                                "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
                                8⤵
                                • Creates scheduled task(s)
                                PID:3556
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 2284
                            6⤵
                            • Program crash
                            PID:2280
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 2056
                        4⤵
                        • Program crash
                        PID:2168
                  • C:\Users\Admin\AppData\Local\Temp\fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe
                    "C:\Users\Admin\AppData\Local\Temp\fbc01257551c6cd7bc0f2245ed9ce6521861d0238d2272830074f50bfbff620f.exe"
                    2⤵
                      PID:1476
                    • C:\Windows\SysWOW64\schtasks.exe
                      "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
                      2⤵
                      • Creates scheduled task(s)
                      PID:4740
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4068 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
                    1⤵
                      PID:3684
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:1752
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:5040
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2620
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:2216
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:2616
                                • C:\Windows\SysWOW64\schtasks.exe
                                  "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
                                  2⤵
                                  • Creates scheduled task(s)
                                  PID:4668
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1648 -ip 1648
                                1⤵
                                  PID:3644
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4048 -ip 4048
                                  1⤵
                                    PID:4600

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

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

                                    Filesize

                                    1KB

                                    MD5

                                    10eab9c2684febb5327b6976f2047587

                                    SHA1

                                    a12ed54146a7f5c4c580416aecb899549712449e

                                    SHA256

                                    f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

                                    SHA512

                                    7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

                                  • C:\Users\Admin\AppData\Local\Temp\JVtkAIr3B3Il.bat

                                    Filesize

                                    208B

                                    MD5

                                    c14bbcbe56190e189291bab0d0e9dbdb

                                    SHA1

                                    9b3d9936a25c7ce964da69dabc0fdd2d1accdc24

                                    SHA256

                                    70c4897513453f98efb358cb8b35e5e53ece77100c0ac38d51b331b6cd764fdf

                                    SHA512

                                    9d8d72ed5dc19c27632fd37558f3d60120d59874f4b7ad42cf9758267b76ec4a772a5fe8a28c76d9be0c3cc4573c1922d3d427c707e0f865adbc68bffdebc843

                                  • C:\Users\Admin\AppData\Local\Temp\cbfPm8XDb5YV.bat

                                    Filesize

                                    208B

                                    MD5

                                    0b945ca34bab0b81e1d7b1a2507345bc

                                    SHA1

                                    d65422775b21eccfdb886966700b173c915edbce

                                    SHA256

                                    f5f824d7edf5077005d5e964cbb4438d6368945428cc0cb8251f6a0609bbb7f2

                                    SHA512

                                    b86876286cbced7cd61e712c510cb810b17faa0a6a82fef303a6a32640695eb116a6d95d5b18ed4236f10dafaa7e218281df2c6b3cf5e8af0f86ff28fbffdacf

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

                                    Filesize

                                    405KB

                                    MD5

                                    b8ba87ee4c3fc085a2fed0d839aadce1

                                    SHA1

                                    b3a2e3256406330e8b1779199bb2b9865122d766

                                    SHA256

                                    4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                    SHA512

                                    7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                                    Filesize

                                    349KB

                                    MD5

                                    b4a202e03d4135484d0e730173abcc72

                                    SHA1

                                    01b30014545ea526c15a60931d676f9392ea0c70

                                    SHA256

                                    7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                    SHA512

                                    632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                  • C:\Users\Admin\AppData\Roaming\Logs\03-17-2024

                                    Filesize

                                    224B

                                    MD5

                                    61aa123c1fc1fddbddd295aabf3d0ef3

                                    SHA1

                                    4836de512b0c51408a88678a63ad8ddb5f4f669b

                                    SHA256

                                    6a857e587cda9e3c1643283b69559ea1630a1f8af5df6a217e85eae02e39f06d

                                    SHA512

                                    24633eeeac246cc6f16fa398ec4942bf8b55b957a082373cbc006da63b7af1cc006f581695e0a84032e9b6d7f6717c71a2634c4825daac880b5e4ad192df2925

                                  • C:\Users\Admin\AppData\Roaming\Logs\03-17-2024

                                    Filesize

                                    224B

                                    MD5

                                    f0d88031fe0aecd68f3aaf296fd0e647

                                    SHA1

                                    847fc72c1ad151d18208c23f8e47fccc64e4cf37

                                    SHA256

                                    482b3d1e369d8881befb7d2f995e4fe2d7fc44bd88eef083425f3cbd030ac5c5

                                    SHA512

                                    c8bd81cb2fdd807c82394f6c108d9e6878fa1fcd772e6ff8f2ea24685f590558cf6cc1649f756685550c391c9d4161a314345186babdf87698a322cf79176e02

                                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe

                                    Filesize

                                    2.0MB

                                    MD5

                                    75c751937d40929a69c26d887cef79a3

                                    SHA1

                                    763e4adedafe28913f0e747128c9a0871c554249

                                    SHA256

                                    ac23c4126c25d6d3f9014112d7d789532e8444845db4e079952702f27ee8ba5d

                                    SHA512

                                    0e1ec25ef33b7abb08856b235b3f3466b758573e92d4bc0933a7f78649f78809e62ed69613f4ec844fcc5c1336ed00ed58e941981599ae6002a0d5824d6778b7

                                  • memory/1476-35-0x0000000000AC0000-0x0000000000AE0000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/1476-27-0x0000000000AC0000-0x0000000000AE0000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/1648-56-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/1648-108-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/1648-98-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/1648-59-0x0000000006C60000-0x0000000006C6A000-memory.dmp

                                    Filesize

                                    40KB

                                  • memory/2216-99-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/2216-86-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/2216-87-0x0000000004C70000-0x0000000004C80000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/2616-88-0x00000000006A0000-0x00000000006C0000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/2616-97-0x00000000006A0000-0x00000000006C0000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/2620-70-0x00000000001D0000-0x000000000026C000-memory.dmp

                                    Filesize

                                    624KB

                                  • memory/2620-74-0x00000000001D0000-0x000000000026C000-memory.dmp

                                    Filesize

                                    624KB

                                  • memory/2620-100-0x00000000001D0000-0x000000000026C000-memory.dmp

                                    Filesize

                                    624KB

                                  • memory/2620-69-0x0000000000270000-0x0000000000271000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2780-18-0x0000000003570000-0x0000000003571000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/4048-111-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/4048-106-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/4048-117-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/4048-112-0x00000000049D0000-0x00000000049E0000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/4048-107-0x00000000049D0000-0x00000000049E0000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/4156-21-0x0000000000800000-0x000000000089C000-memory.dmp

                                    Filesize

                                    624KB

                                  • memory/4156-42-0x0000000000800000-0x000000000089C000-memory.dmp

                                    Filesize

                                    624KB

                                  • memory/4156-20-0x00000000008A0000-0x00000000008A1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/4156-25-0x0000000000800000-0x000000000089C000-memory.dmp

                                    Filesize

                                    624KB

                                  • memory/4556-120-0x0000000005020000-0x0000000005030000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/4556-119-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/4760-38-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/4760-41-0x0000000005260000-0x00000000052F2000-memory.dmp

                                    Filesize

                                    584KB

                                  • memory/4760-40-0x0000000005770000-0x0000000005D14000-memory.dmp

                                    Filesize

                                    5.6MB

                                  • memory/4760-57-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/4760-43-0x0000000005160000-0x0000000005170000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/4760-45-0x0000000072A60000-0x0000000073210000-memory.dmp

                                    Filesize

                                    7.7MB

                                  • memory/4760-44-0x00000000051C0000-0x0000000005226000-memory.dmp

                                    Filesize

                                    408KB

                                  • memory/4760-46-0x0000000005740000-0x0000000005752000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/4760-39-0x00000000006A0000-0x00000000006FE000-memory.dmp

                                    Filesize

                                    376KB

                                  • memory/4760-48-0x0000000006680000-0x00000000066BC000-memory.dmp

                                    Filesize

                                    240KB