Analysis

  • max time kernel
    3s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-03-2024 19:59

General

  • Target

    4d76ac906021bbc02781841d340f03eaae289d58ce4ed1457e5b539717afb30b.exe

  • Size

    2.0MB

  • MD5

    5c0df4a7294cacdab88a72ffa4ba72e3

  • SHA1

    f9f097e6976cf0d6376a2fcad99db5355dcffa18

  • SHA256

    4d76ac906021bbc02781841d340f03eaae289d58ce4ed1457e5b539717afb30b

  • SHA512

    9b07a660d1037d444f6e370bbe481a33dcc572aeb0388fd8a6bb3403335a1ab9e9d40d5decfef9102c809115153276721e25ceb2c8aa736f406dc8fd32cbdeab

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYW:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YQ

Malware Config

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

Extracted

Family

azorult

C2

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

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 8 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 8 IoCs
  • Detects executables containing common artifacts observed in infostealers 8 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 1 IoCs

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

  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

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

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

  • Program crash 3 IoCs
  • Creates scheduled task(s) 1 TTPs 5 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d76ac906021bbc02781841d340f03eaae289d58ce4ed1457e5b539717afb30b.exe
    "C:\Users\Admin\AppData\Local\Temp\4d76ac906021bbc02781841d340f03eaae289d58ce4ed1457e5b539717afb30b.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1420
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4420
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1420 -s 548
          3⤵
          • Program crash
          PID:4356
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:3804
        • 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:4496
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:4964
            • 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:3924
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\uGMzgdNxgLPR.bat" "
              4⤵
                PID:2684
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:1872
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • Runs ping.exe
                    PID:4132
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:1556
                      • 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:3596
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 2248
                    4⤵
                    • Program crash
                    PID:1632
              • C:\Users\Admin\AppData\Local\Temp\4d76ac906021bbc02781841d340f03eaae289d58ce4ed1457e5b539717afb30b.exe
                "C:\Users\Admin\AppData\Local\Temp\4d76ac906021bbc02781841d340f03eaae289d58ce4ed1457e5b539717afb30b.exe"
                2⤵
                  PID:1328
                • 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:2532
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1420 -ip 1420
                1⤵
                  PID:2364
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:3544
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:3576
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:3728
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 3576 -s 520
                            3⤵
                            • Program crash
                            PID:2828
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:3588
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:4616
                            • 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:4540
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3576 -ip 3576
                            1⤵
                              PID:3608
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4964 -ip 4964
                              1⤵
                                PID:1456
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:4324
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4432

                                  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

                                  Query Registry

                                  2
                                  T1012

                                  System Information Discovery

                                  3
                                  T1082

                                  Peripheral Device Discovery

                                  1
                                  T1120

                                  Remote System Discovery

                                  1
                                  T1018

                                  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\uGMzgdNxgLPR.bat
                                    Filesize

                                    208B

                                    MD5

                                    48025b23267574e2f9c6a3bc34d80426

                                    SHA1

                                    7d26cfd137aba8911dcbf953baee67a984fffe8d

                                    SHA256

                                    ed6e7f5952f22a6f6d66aa1bacfc9285394cee708bf49ac24598f17257d13c02

                                    SHA512

                                    bde1df50bd0a646555a35d47174403c5ed23bb85513c115f1219d4e19d0482455496ef38ed0d1ad03d4bbfa654b05c7e93ed5effa8146a173ca5a96ea91442a5

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

                                    405KB

                                    MD5

                                    b8ba87ee4c3fc085a2fed0d839aadce1

                                    SHA1

                                    b3a2e3256406330e8b1779199bb2b9865122d766

                                    SHA256

                                    4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                    SHA512

                                    7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                                    313KB

                                    MD5

                                    eee7f966ba589b70604495c2fa56a19d

                                    SHA1

                                    a63d10708c5060190aa7786ad4318b198878e82f

                                    SHA256

                                    05b51afec2a127e94f28dbe8b2e4e91fc7c3f936953ee6e0ae777cd3fe69ffa1

                                    SHA512

                                    233618d80dd8d58fec1445871c65982bea4ba40921b49d1d5acac010dccee249a4825345209decd52fe21b714fc3dd6f04601f0cc47f50b814059f94dc7d83db

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

                                    349KB

                                    MD5

                                    b4a202e03d4135484d0e730173abcc72

                                    SHA1

                                    01b30014545ea526c15a60931d676f9392ea0c70

                                    SHA256

                                    7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                    SHA512

                                    632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

                                    29KB

                                    MD5

                                    d8d3cee32ad434a9b56883cc1508f53c

                                    SHA1

                                    aca7265f24f42056ace6c1420b3c1e37d5cc3d05

                                    SHA256

                                    63f239f07baf0a72523dc8bea06b407d879a5195170f80ee610e44b80d9d2dd5

                                    SHA512

                                    8a87e936a4f3be599646febbdd8e863a15fef984c36b29995e7ec914aaa3d0425a5883a27f04fa78e04556e7c6b67a177fdfbf23fe3f10a3e82da303552d82bd

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

                                    213KB

                                    MD5

                                    a6745dbe1e0fd432a4fb5c6a25603057

                                    SHA1

                                    908bfaebdbb38d79d4814d789a3fcbc7aceffc35

                                    SHA256

                                    e1baa6b409ad0365421bab33b6a4770584a9d1e98584a9e62c1c2b0a5acaa4ee

                                    SHA512

                                    458be042f649c1a324ce490d04815b0e71712f3d2a639f94c8609433238d0bfdb7e75bb1e3c7288d188f9cf7ace105d2d6ec1e92d543e29c1e0e3a6f4c794444

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

                                    47KB

                                    MD5

                                    e3003c545b2650ceac01b94547e6adb9

                                    SHA1

                                    bde4126fc060e2938240eac6db18a08d4a8f0979

                                    SHA256

                                    ad7efe1757410a9b09490e9e80b30ada78baf00638c785b888646de6bd8c330f

                                    SHA512

                                    5ec6e1276af5bd766d6452890bf66a9484ad34f0cd366eed2fad9f97c537eaf653f4115e2aa445974b461e6695556cc99847535214845d1ed8a71d5d4df8d0d0

                                  • C:\Users\Admin\AppData\Roaming\Logs\03-19-2024
                                    Filesize

                                    224B

                                    MD5

                                    51f95458e402df51098c260f4c5694e5

                                    SHA1

                                    d83bbaead0a5a1ee99957914e7f86fc1c67e1713

                                    SHA256

                                    cfe636bbc49b755fcb29053bb324c552192dcafa6e98649c5e051cd896ee19c7

                                    SHA512

                                    851d549c5690b1a2e622872dd80e99326403b0593e2d6c32c691a38fe1c3abc095826a25acf5469978a404597bbcdd862ac6763fe7c006e0d026ae08af4d1366

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

                                    1.6MB

                                    MD5

                                    3bc88002ee0c6dc3678d75e34faa7068

                                    SHA1

                                    e67113f376936b7e975c4d40c745c7d4cfefee2d

                                    SHA256

                                    9e16f307d052dfb5af1d3634a8913a24dcf37e756f8f002dbe1e215435ddcd46

                                    SHA512

                                    d6c0a363be71ae45607b60273344c824d24c011c5a7174994a8202a8d33540e9eba8d9906cb806962eab1bf23daf6f1b7cfbd54c01d27b3335212dfd6ac6a6d7

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

                                    922KB

                                    MD5

                                    225611c9ffc13c80257e8b4e76515d40

                                    SHA1

                                    0c9147e25ad7fa6b668cb469ba671668f2c13940

                                    SHA256

                                    368586103c38883079c0da26a55a885da79716dfc05e4592d4b2840423e17b01

                                    SHA512

                                    c0a5afed9b59542f81798109de38b11805be4e8b0d4b4c3ae152bbd4d9df61a891a0acd851333f0c3e22c4ad0c57067741b44324aa2ee0ad4ecc26cc06dc982b

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

                                    2.0MB

                                    MD5

                                    0c8614efc1ec5166f64059e5ec975248

                                    SHA1

                                    9c2ed3650487d2d2ff729432c41428038529d379

                                    SHA256

                                    2bce199386e67a0a69f1fabc18ea3cc53ca77aba14fc4fb03f1debdf7d014813

                                    SHA512

                                    b233212550bf4b477bb2874144a7fcc87d911a081cc054dc2904c50ccca38c4d2cfae0f5317b2d2ebe94acfcf558aaa3865ecb07ec875013d7f461c36fa8bd9c

                                  • memory/1328-31-0x0000000000400000-0x0000000000420000-memory.dmp
                                    Filesize

                                    128KB

                                  • memory/1328-20-0x0000000000400000-0x0000000000420000-memory.dmp
                                    Filesize

                                    128KB

                                  • memory/1556-96-0x00000000055E0000-0x00000000055F0000-memory.dmp
                                    Filesize

                                    64KB

                                  • memory/1556-95-0x00000000736D0000-0x0000000073E80000-memory.dmp
                                    Filesize

                                    7.7MB

                                  • memory/1556-92-0x00000000055E0000-0x00000000055F0000-memory.dmp
                                    Filesize

                                    64KB

                                  • memory/1556-91-0x00000000736D0000-0x0000000073E80000-memory.dmp
                                    Filesize

                                    7.7MB

                                  • memory/2100-19-0x00000000021E0000-0x00000000021E1000-memory.dmp
                                    Filesize

                                    4KB

                                  • memory/3588-69-0x00000000736D0000-0x0000000073E80000-memory.dmp
                                    Filesize

                                    7.7MB

                                  • memory/3588-81-0x00000000736D0000-0x0000000073E80000-memory.dmp
                                    Filesize

                                    7.7MB

                                  • memory/3588-70-0x00000000054C0000-0x00000000054D0000-memory.dmp
                                    Filesize

                                    64KB

                                  • memory/3804-36-0x00000000055B0000-0x0000000005616000-memory.dmp
                                    Filesize

                                    408KB

                                  • memory/3804-35-0x0000000005460000-0x0000000005470000-memory.dmp
                                    Filesize

                                    64KB

                                  • memory/3804-30-0x0000000005BE0000-0x0000000006184000-memory.dmp
                                    Filesize

                                    5.6MB

                                  • memory/3804-26-0x0000000000A90000-0x0000000000AEE000-memory.dmp
                                    Filesize

                                    376KB

                                  • memory/3804-32-0x0000000005510000-0x00000000055A2000-memory.dmp
                                    Filesize

                                    584KB

                                  • memory/3804-38-0x0000000006890000-0x00000000068CC000-memory.dmp
                                    Filesize

                                    240KB

                                  • memory/3804-46-0x00000000736D0000-0x0000000073E80000-memory.dmp
                                    Filesize

                                    7.7MB

                                  • memory/3804-29-0x00000000736D0000-0x0000000073E80000-memory.dmp
                                    Filesize

                                    7.7MB

                                  • memory/3804-37-0x0000000005B90000-0x0000000005BA2000-memory.dmp
                                    Filesize

                                    72KB

                                  • memory/4964-89-0x00000000736D0000-0x0000000073E80000-memory.dmp
                                    Filesize

                                    7.7MB

                                  • memory/4964-47-0x0000000005220000-0x0000000005230000-memory.dmp
                                    Filesize

                                    64KB

                                  • memory/4964-45-0x00000000736D0000-0x0000000073E80000-memory.dmp
                                    Filesize

                                    7.7MB

                                  • memory/4964-84-0x00000000736D0000-0x0000000073E80000-memory.dmp
                                    Filesize

                                    7.7MB

                                  • memory/4964-83-0x0000000006950000-0x000000000695A000-memory.dmp
                                    Filesize

                                    40KB