Analysis

  • max time kernel
    146s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2023 00:17

General

  • Target

    21645cb838b440ce773eeefa8647b7c9.exe

  • Size

    62KB

  • MD5

    21645cb838b440ce773eeefa8647b7c9

  • SHA1

    6b071aef7cf04c1965aee31897da4d3e448976b7

  • SHA256

    436e3125f8840c8c43e3cdfa53051665ed66ac98f24196c642581931a69e1325

  • SHA512

    39fa6a39e14d8db89eec495d57e3b74a9511aef8f686d74f3ecb411ec622a60b7ce74230f91d8f6c6c15ed50dc70350083a069f89be1b052a3bd5c36431b740c

  • SSDEEP

    1536:/fjQtATi+FDfXsKA2p2v97RybohyjWgX5PtXhSMImX8/nlE:/fkaFTjMtRyDjR5PtVXGi

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 60 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 10 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21645cb838b440ce773eeefa8647b7c9.exe
    "C:\Users\Admin\AppData\Local\Temp\21645cb838b440ce773eeefa8647b7c9.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s C:\Windows\system32\gzo.dll
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:1340
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://lookfornewsoftware.com/bind2.php?id=3913627
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:5440
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3264 /prefetch:1
        3⤵
          PID:5652
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3252 /prefetch:1
          3⤵
            PID:4872
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2608 /prefetch:8
            3⤵
              PID:2312
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2244 /prefetch:3
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:1648
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3992 /prefetch:1
              3⤵
                PID:5404
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2052 /prefetch:2
                3⤵
                  PID:4636
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4320 /prefetch:1
                  3⤵
                    PID:3624
                  • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5072 /prefetch:8
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1744
                  • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5072 /prefetch:8
                    3⤵
                      PID:4112
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5148 /prefetch:1
                      3⤵
                        PID:4312
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4872 /prefetch:1
                        3⤵
                          PID:3332
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5560 /prefetch:1
                          3⤵
                            PID:6128
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5264 /prefetch:1
                            3⤵
                              PID:5628
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1880 /prefetch:1
                              3⤵
                                PID:5688
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5300 /prefetch:1
                                3⤵
                                  PID:232
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2036,8775459433043972239,15272676600463961948,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=5392 /prefetch:2
                                  3⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:4960
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffe7e6646f8,0x7ffe7e664708,0x7ffe7e664718
                              1⤵
                                PID:4620
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:3944
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:3456

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                    Filesize

                                    152B

                                    MD5

                                    1386433ecc349475d39fb1e4f9e149a0

                                    SHA1

                                    f04f71ac77cb30f1d04fd16d42852322a8b2680f

                                    SHA256

                                    a7c79320a37d3516823f533e0ca73ed54fc4cdade9999b9827d06ea9f8916bbc

                                    SHA512

                                    fcd5449c58ead25955d01739929c42ffc89b9007bc2c8779c05271f2d053be66e05414c410738c35572ef31811aff908e7fe3dd7a9cef33c27acb308a420280e

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State

                                    Filesize

                                    111B

                                    MD5

                                    285252a2f6327d41eab203dc2f402c67

                                    SHA1

                                    acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

                                    SHA256

                                    5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

                                    SHA512

                                    11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                    Filesize

                                    5KB

                                    MD5

                                    9c59aa765bcaabbfbfec693ba38e6c47

                                    SHA1

                                    b858e89586c5242b1a0fe9731857b85124bfd2f2

                                    SHA256

                                    f640529b990dc3b6e27bf442b5245ba4eac2959fcf652dfaeed0a1ab89083f2f

                                    SHA512

                                    ae2db94990b722c251cdf78698ed5f6c3417e2931b1c5d1fea5ed4d8768bd8abdb4712449383f979e3c704b4a3182a26bfcfb2173442ac31f2dc2f50e4631cbb

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences

                                    Filesize

                                    24KB

                                    MD5

                                    e664066e3aa135f185ed1c194b9fa1f8

                                    SHA1

                                    358ff3c6ad0580b8ae1e5ef2a89a4e597c2efdc5

                                    SHA256

                                    86e595be48dbc768a52d7ea62116036c024093e1302aced8c29dd6a2d9935617

                                    SHA512

                                    58710818b5f664006a5aa418da6c8cd3f709c2265bc161f81b9dfe6cdb8304fabaa4ce9deba419fe4281623feeeaa0321f481ae5855d347c6d8cf95968ee905e

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\b6c948b6-2911-4dbf-8034-a6b755ae772b.tmp

                                    Filesize

                                    5KB

                                    MD5

                                    b1da05b796fc7a814540dd21eaed34b9

                                    SHA1

                                    46ece089017af833ecf98ce6eef926ffa5b2e07f

                                    SHA256

                                    39f4bd3add2a696e9f485fa51312358f3ae5aa0a10b85efbddc7354588519ecf

                                    SHA512

                                    86c0f69349229518314caf3ea7fc300a40163e8bfebf7a0bdfdbecc978e87b9bed2c7f66ebc03cd63010d74b53c2cef7522a08595675dd11cd07fe2604c97720

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                    Filesize

                                    16B

                                    MD5

                                    6752a1d65b201c13b62ea44016eb221f

                                    SHA1

                                    58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                                    SHA256

                                    0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                                    SHA512

                                    9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

                                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                    Filesize

                                    11KB

                                    MD5

                                    ef08bfb206e58f5cd9acda6e468ce9b2

                                    SHA1

                                    c38e15ecf53dc512e379f743fcd51f17891c1456

                                    SHA256

                                    d2d8b622af084f8120d6714b5865d13b3467af22dd104a197af49fa7528db6d2

                                    SHA512

                                    29aead0198e34c776c6e4b713f834ec01b9eb0737283c3f8a71e4b385fe3c4a303d42eaa4d60939868a840bc7c978c44633620b22d60b614d3f6007564191cbd

                                  • C:\Windows\SysWOW64\gzo.dll

                                    Filesize

                                    100KB

                                    MD5

                                    40a74d1905b006595e64d5b5bc02e222

                                    SHA1

                                    1cb951eaf7d4d84c2aace11223c9b8703ae633ef

                                    SHA256

                                    7b8997a4e1b6d8148b0d37e4f0d2d108328c81622cbf2180554081575257bedf

                                    SHA512

                                    61ae18e334f9e5d299f6421f1c74525e4f037ac66daf780de9263882626dec767ae61ec03d0be8a24d8f10980e7d2d341253b32c75ff37b03d24f696bbe63205

                                  • memory/1280-0-0x0000000000400000-0x0000000000430000-memory.dmp

                                    Filesize

                                    192KB

                                  • memory/1280-20-0x0000000000400000-0x0000000000430000-memory.dmp

                                    Filesize

                                    192KB