Analysis

  • max time kernel
    156s
  • max time network
    289s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    02-06-2024 06:22

General

  • Target

    uni/Uni - Copy (20) - 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 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Opens file in notepad (likely ransom note) 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (20) - Copy.exe
    "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (20) - Copy.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (20) - Copy.exe" /rl HIGHEST /f
      2⤵
      • Quasar RAT
      • Creates scheduled task(s)
      PID:2712
    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2564
      • 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:1212
      • C:\Users\Admin\AppData\Local\Temp\LWtf8q4Jrz4j.exe
        "C:\Users\Admin\AppData\Local\Temp\LWtf8q4Jrz4j.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1032
      • C:\Windows\SysWOW64\SCHTASKS.exe
        "SCHTASKS.exe" /create /tn "$77Client.exe" /tr "'C:\Users\Admin\AppData\Roaming\SubDir\Client.exe'" /sc onlogon /rl HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:2624
    • C:\Windows\SysWOW64\SCHTASKS.exe
      "SCHTASKS.exe" /create /tn "$77Uni - Copy (20) - Copy.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (20) - Copy.exe'" /sc onlogon /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:2744
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x1e8
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2528
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef6d39758,0x7fef6d39768,0x7fef6d39778
      2⤵
        PID:928
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1100 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:2
        2⤵
          PID:2312
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1480 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:8
          2⤵
            PID:1304
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1604 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:8
            2⤵
              PID:2220
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2272 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:1
              2⤵
                PID:2664
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2280 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:1
                2⤵
                  PID:2684
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1352 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:2
                  2⤵
                    PID:1516
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=2216 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:1
                    2⤵
                      PID:2488
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3432 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:8
                      2⤵
                        PID:2836
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3460 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:8
                        2⤵
                          PID:3044
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3676 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:8
                          2⤵
                            PID:2544
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3792 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:8
                            2⤵
                              PID:304
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3516 --field-trial-handle=1336,i,16337827177852193262,8339199987631412964,131072 /prefetch:8
                              2⤵
                                PID:3004
                            • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                              "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                              1⤵
                                PID:2584
                              • C:\Windows\system32\NOTEPAD.EXE
                                "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\GetRestore.txt
                                1⤵
                                • Opens file in notepad (likely ransom note)
                                PID:2848
                              • C:\Windows\system32\NOTEPAD.EXE
                                "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\GetRestore.txt
                                1⤵
                                • Opens file in notepad (likely ransom note)
                                PID:2588

                              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

                              1
                              T1012

                              System Information Discovery

                              1
                              T1082

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\54a19a7c-cfe0-4071-8db2-3c567aae9528.tmp
                                Filesize

                                5KB

                                MD5

                                36e240d6f44f6c75432ccb46804f4fdf

                                SHA1

                                88da7fd92ed755b28006c4113104e5c9554284f2

                                SHA256

                                4f39bc250ced3ef5273a5a303b0b84283e3e1adf7849bc988b288c635c0a12e2

                                SHA512

                                762020414ccbda9ecb0fde06f56a8525d126b1181d7c9b33db33d7662ac213e537d796efd9ffb1c1b61a99ed1390de5efb284fc92046a2f24434ec6b7fb5fe4c

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\7e090b8c-5bfe-4b81-a926-f9d9e5c40bb7.tmp
                                Filesize

                                5KB

                                MD5

                                60488caed2e80fb38dba1179b175b4c0

                                SHA1

                                b39992062687fa75826f227b7950713b161f5d28

                                SHA256

                                4ad3f60ce7219b3b21f1285b9f99f8aac5cda46bc16ae6ec209bcc829ce3274e

                                SHA512

                                0de633d49501a589e738bd5721cf6286eb272386ac1afcf2e163289111bbce2c65956b04561b152b9b90a9c9d434eb4cff680d40d988581a1de9e009c1b155b5

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp
                                Filesize

                                16B

                                MD5

                                aefd77f47fb84fae5ea194496b44c67a

                                SHA1

                                dcfbb6a5b8d05662c4858664f81693bb7f803b82

                                SHA256

                                4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611

                                SHA512

                                b733d502138821948267a8b27401d7c0751e590e1298fda1428e663ccd02f55d0d2446ff4bc265bdcdc61f952d13c01524a5341bc86afc3c2cde1d8589b2e1c3

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1
                                Filesize

                                264KB

                                MD5

                                f50f89a0a91564d0b8a211f8921aa7de

                                SHA1

                                112403a17dd69d5b9018b8cede023cb3b54eab7d

                                SHA256

                                b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                                SHA512

                                bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                Filesize

                                5KB

                                MD5

                                362870a74cef8c93b197905c2d40c305

                                SHA1

                                4dd5c404f13438119c48931db4a4cc1ba7783b27

                                SHA256

                                6e08d8d2b2964a8268ba2b4a42cef62c5752c390b6da864c8adf21a1a2800b9c

                                SHA512

                                071d69d5d997fa4166501e71ce528332c24762954d74c1c5627a530802762699c0a691ee38a4b4d1d9ab8888bd9607613f33d129cc6de90dc84810ecc8d29d03

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                Filesize

                                5KB

                                MD5

                                69868ea6d91429f79566df34084c0cf5

                                SHA1

                                38c0446f062a697f4cf5bcf499c5d2713d5dbe88

                                SHA256

                                2a60f0d1d61d95c685614b330769ca23a7e2924da998848a27d6a7413b228d92

                                SHA512

                                63241a8f4149d730390a2cad377bbb1deaec6c9c5af44ae17eaf23bc725ec53d824a4da5f1d69a87cca11db26a2e6eb0750254c3cffcee2cb8f0286d125ddcbc

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                Filesize

                                5KB

                                MD5

                                11c7c29382aba1132cd563f982ba7bc8

                                SHA1

                                bd49ba8de6e7acfbd9f0d149e7b835a766bd0208

                                SHA256

                                48cde65eb7864ef56105afde0658bdc82c364fd2c8b5041d6f1037f8a9a0961a

                                SHA512

                                cfff1bfb1646a8027289308baa6b2957572d3403ed8d7c33e28b6d0f9e04a91137df775d2847c8036319b648c283706a050145c23431752249155a0da91ac035

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                Filesize

                                5KB

                                MD5

                                f9d7749228927c286d1a2cdab3778529

                                SHA1

                                c5d16671b0f2d01e562d790640ac9ad0045fa63f

                                SHA256

                                bf63b2203b34221eed2fc32d432451df7608b6b65ee31de6ed23b4e9f27fd5ab

                                SHA512

                                26c87019ea528f8835938b85e7e08e3fdff733b160468dd5dd97f63c8363a411e13fd60d66ed9f861eb39d6c411520df2ec5a88440d6a5fa7cd0632caa7c3e83

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp
                                Filesize

                                16B

                                MD5

                                18e723571b00fb1694a3bad6c78e4054

                                SHA1

                                afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                                SHA256

                                8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                                SHA512

                                43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                Filesize

                                282KB

                                MD5

                                04099852f8088a0a1367546a73ffb1e2

                                SHA1

                                271187f4de1c10a5c326b419a17dc002df4ce82b

                                SHA256

                                ffb3dd47b755e21c7fb621328cadf9b2b1a70bfa392a5d7f609236460c889791

                                SHA512

                                6f5f5ecce7878a476826e38fe0269cbf62355de50a0c9b4eb5ef371fb81a5e968d3c389c82ce5857f76ef1c8d74a03f5e637998de271c659ee50b6eb54f9f368

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\ba649aa0-3298-434e-9347-ea3af59d4961.tmp
                                Filesize

                                282KB

                                MD5

                                058ac3020c837d25230296e6761eedee

                                SHA1

                                c87a353ebe7b2effe6523f776881a97eee470601

                                SHA256

                                7bc5ee16d3c7e6246f2f399c4424b2a9c41e107e1575871cf0353c4e66c17741

                                SHA512

                                1224619f6e2773b03ec29ac3f2c4a97cf10557ce3dcb0e324fe478785fe537df4a6133041ad82de7f992e4251b135b16fe615954a1122b0d65acecdcd8e2f8d5

                              • C:\Users\Admin\AppData\Local\Temp\LWtf8q4Jrz4j.exe
                                Filesize

                                277KB

                                MD5

                                dac0c5b2380cbdd93b46763427c9f8df

                                SHA1

                                038089e1a0ac8375be797fc3ce7ae719abc72834

                                SHA256

                                d02538788fb57f568ece292f5fc20e9775c86d504de67f57e22534f84adc73c6

                                SHA512

                                05cc1f6bf25a6545a06c735ae7a4a7fc25489bdb9fbc8d5797be623982662c4a93cba2d20bfe14313ef1548eaaa691e55fabdd8e3d3e45de9ab42dc62f9a7023

                              • \??\pipe\crashpad_1100_UPNQVCBQXVYKQXWZ
                                MD5

                                d41d8cd98f00b204e9800998ecf8427e

                                SHA1

                                da39a3ee5e6b4b0d3255bfef95601890afd80709

                                SHA256

                                e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                SHA512

                                cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

                                409KB

                                MD5

                                b70fdac25a99501e3cae11f1b775249e

                                SHA1

                                3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

                                SHA256

                                51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

                                SHA512

                                43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

                              • memory/2236-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp
                                Filesize

                                4KB

                              • memory/2236-13-0x0000000074B10000-0x00000000751FE000-memory.dmp
                                Filesize

                                6.9MB

                              • memory/2236-2-0x0000000074B10000-0x00000000751FE000-memory.dmp
                                Filesize

                                6.9MB

                              • memory/2236-1-0x0000000000FD0000-0x000000000103C000-memory.dmp
                                Filesize

                                432KB

                              • memory/2564-12-0x0000000074B10000-0x00000000751FE000-memory.dmp
                                Filesize

                                6.9MB

                              • memory/2564-10-0x0000000000DE0000-0x0000000000E4C000-memory.dmp
                                Filesize

                                432KB

                              • memory/2564-11-0x0000000074B10000-0x00000000751FE000-memory.dmp
                                Filesize

                                6.9MB

                              • memory/2564-166-0x0000000074B10000-0x00000000751FE000-memory.dmp
                                Filesize

                                6.9MB

                              • memory/2564-15-0x0000000074B10000-0x00000000751FE000-memory.dmp
                                Filesize

                                6.9MB

                              • memory/2564-16-0x0000000074B10000-0x00000000751FE000-memory.dmp
                                Filesize

                                6.9MB