Analysis

  • max time kernel
    37s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2023 20:22

General

  • Target

    Adobe Download Manager.exe

  • Size

    2.0MB

  • MD5

    cc38554b00499e85149b2c1c0a22473e

  • SHA1

    13382965ec47a60dcf07aeadd7414f215099f564

  • SHA256

    f8b6eddbe3fd90f45c93cfdaf71fe200371518c6f0c100e2aad9f193d7260c05

  • SHA512

    0efe34a59ef8990aa40db6066128f44108c0bce914e450ba69cafae0664c3190cdbdfd0511e42a25e8f4d880e456ef2ccedcd690603e102ae4dcdf7170b2790c

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYP:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YB

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 4 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 2 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 5 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\Adobe Download Manager.exe
    "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3952
    • 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:4188
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:1776
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      PID:1740
      • 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:3516
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:4284
          • 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:3244
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HNbUcxNO02ak.bat" "
            4⤵
              PID:884
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:3452
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:760
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2896
                    • 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:368
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PyzU3zpyOygt.bat" "
                      6⤵
                        PID:1940
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3460
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:4820
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:2116
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2896 -s 2040
                            6⤵
                            • Program crash
                            PID:1196
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 4284 -s 1848
                        4⤵
                        • Program crash
                        PID:2292
                  • C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe
                    "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe"
                    2⤵
                      PID:3932
                    • 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:3184
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:3024
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:1060
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4076
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:2732
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:3756
                              • 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:4088
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4284 -ip 4284
                              1⤵
                                PID:1052
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2896 -ip 2896
                                1⤵
                                  PID:5004

                                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\HNbUcxNO02ak.bat

                                  Filesize

                                  208B

                                  MD5

                                  1e2a9093d591442619ba8a1fec5c5725

                                  SHA1

                                  3c0dffc631f414aec3d1f50ec9132483a48b56f0

                                  SHA256

                                  ead6136a6c4a93d27fff32ebdda107a394c17add34bfd754919f100395df93d2

                                  SHA512

                                  77a3f093f1debeaaaa4345cbc48d7cbcc19661406310f42357ceef8c64e988deac1aa06f380211f30addbc19bc48d4ddc36971be3d30b7847ea145b0f884387c

                                • C:\Users\Admin\AppData\Local\Temp\PyzU3zpyOygt.bat

                                  Filesize

                                  208B

                                  MD5

                                  ea21a4f8b00fccf68c9d2317c9d8fe7d

                                  SHA1

                                  efdb4f49a21f3864a7f5e38241f2f6c4596a4465

                                  SHA256

                                  b1d26157a7765aa41cc2e12036ed2146680cfae4521d8ba1fae44cc320ce14bf

                                  SHA512

                                  31484b86f8069ff194db17ec784afce390a95e190c9f1ff13124d9e68683d14c84594ec725cc54205fb3480262e9a4017a121fb4b399a0b312b58347c8b5dd60

                                • 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

                                  21KB

                                  MD5

                                  e21ec9c0d66627a70214e1fbe5a7b93a

                                  SHA1

                                  daa31abdbcd52b2086c8fb3d439a26125d4fc2c2

                                  SHA256

                                  b0d52b60e57f5cc39dc5208776386b332da4a9cc15291d6c4b6438f3688ef8b4

                                  SHA512

                                  523e012d241c278f26902d6ee11852fb91a3aafa2c48efbb4f05278be5ddfb379b152d0dd69e70515c20867534f1a35cce65482f11cd1531029d84548eb3fd04

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

                                  Filesize

                                  349KB

                                  MD5

                                  b4a202e03d4135484d0e730173abcc72

                                  SHA1

                                  01b30014545ea526c15a60931d676f9392ea0c70

                                  SHA256

                                  7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                  SHA512

                                  632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                • C:\Users\Admin\AppData\Roaming\Logs\12-22-2023

                                  Filesize

                                  224B

                                  MD5

                                  18b25a5859febcf6b9bb8f0e326801b9

                                  SHA1

                                  63a622e6d54a79553bf79178a0a359e6509c6168

                                  SHA256

                                  e8feaae863337adab2a5e90284b418a1cd36f45d9c0fe6c5796fb380f8f4b301

                                  SHA512

                                  73607d576454c733949e41b3f0fdd26ec8cdf5e307dbf5b0431c367603cb1d9f5102575a59eb178511c6c8ecb1e1c64f04ede51774c0076b820eb51802476f34

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  03a740fec4932baa8f5f7c049073aaae

                                  SHA1

                                  3dc8b049973e9bfe46761add1e871ab988ece982

                                  SHA256

                                  71cab7b77c557e3b49454c12b632644d6571dca938b2d0154db7b40767f13759

                                  SHA512

                                  9c76c90241e450296e278794fd718c4e5a6265c9a3f2c0b5e51632b7e132fada4e3ee484261ff19c6e631041fe316515f7cb4e92b24ef66054bf0c46c4a8d59b

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

                                  Filesize

                                  1.1MB

                                  MD5

                                  cb7ddae1e0c5a29e366d87a04698ea69

                                  SHA1

                                  6ac67a228de5f748590bbc4051ab4c343ed88ed3

                                  SHA256

                                  17281e3a6adf50645a674e630f6e1f14fda6bedfa0d998c46ac0a8f8f542b0df

                                  SHA512

                                  f1e2242c4d5722ee6e68418e271957c71fe660531e6822b6d304ff4f0eb2a89a90d6a48dfb30da26d4dc8bfeae1a2b95afbd85ffff1aed214cd5076dd23333e0

                                • memory/1740-54-0x0000000005070000-0x0000000005080000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/1740-43-0x0000000005420000-0x0000000005486000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/1740-26-0x00000000005C0000-0x000000000061E000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/1740-35-0x0000000005560000-0x0000000005B04000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/1740-56-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/1740-44-0x0000000006170000-0x0000000006182000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/1740-45-0x00000000065B0000-0x00000000065EC000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/1740-47-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/1740-21-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/1740-42-0x0000000005070000-0x0000000005080000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/1740-39-0x0000000005080000-0x0000000005112000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/1776-52-0x0000000000470000-0x000000000050C000-memory.dmp

                                  Filesize

                                  624KB

                                • memory/1776-28-0x0000000000510000-0x0000000000511000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/1776-37-0x0000000000470000-0x000000000050C000-memory.dmp

                                  Filesize

                                  624KB

                                • memory/1776-27-0x0000000000470000-0x000000000050C000-memory.dmp

                                  Filesize

                                  624KB

                                • memory/2116-124-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/2116-122-0x0000000005560000-0x0000000005570000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/2116-121-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/2732-102-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/2732-91-0x0000000005650000-0x0000000005660000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/2732-90-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/2896-110-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/2896-111-0x00000000050D0000-0x00000000050E0000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/2896-125-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/2896-115-0x00000000050D0000-0x00000000050E0000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/2896-114-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/3756-92-0x0000000000BD0000-0x0000000000BF0000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3756-101-0x0000000000BD0000-0x0000000000BF0000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3932-38-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3932-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3952-22-0x0000000003D30000-0x0000000003D31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/4076-74-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/4076-107-0x0000000000E30000-0x0000000000ECC000-memory.dmp

                                  Filesize

                                  624KB

                                • memory/4076-80-0x0000000000E30000-0x0000000000ECC000-memory.dmp

                                  Filesize

                                  624KB

                                • memory/4076-76-0x0000000000E30000-0x0000000000ECC000-memory.dmp

                                  Filesize

                                  624KB

                                • memory/4284-59-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/4284-65-0x0000000004E70000-0x0000000004E80000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/4284-108-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/4284-58-0x0000000006810000-0x000000000681A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/4284-53-0x0000000073020000-0x00000000737D0000-memory.dmp

                                  Filesize

                                  7.7MB