Analysis
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max time kernel
63s -
max time network
67s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
26-04-2023 11:29
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://yakutaconsulting.com
Resource
win10v2004-20230220-en
General
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Target
http://yakutaconsulting.com
Malware Config
Signatures
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Checks processor information in registry 2 TTPs 5 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier firefox.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000_Classes\Local Settings firefox.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3336 firefox.exe Token: SeDebugPrivilege 3336 firefox.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 3336 firefox.exe 3336 firefox.exe 3336 firefox.exe 3336 firefox.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 3336 firefox.exe 3336 firefox.exe 3336 firefox.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3336 firefox.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 2128 wrote to memory of 3336 2128 firefox.exe 85 PID 3336 wrote to memory of 1308 3336 firefox.exe 87 PID 3336 wrote to memory of 1308 3336 firefox.exe 87 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 1952 3336 firefox.exe 88 PID 3336 wrote to memory of 940 3336 firefox.exe 89 PID 3336 wrote to memory of 940 3336 firefox.exe 89 PID 3336 wrote to memory of 940 3336 firefox.exe 89 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" http://yakutaconsulting.com1⤵
- Suspicious use of WriteProcessMemory
PID:2128 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" http://yakutaconsulting.com2⤵
- Checks processor information in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3336 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3336.0.1740205003\406539341" -parentBuildID 20221007134813 -prefsHandle 1836 -prefMapHandle 1828 -prefsLen 20890 -prefMapSize 232675 -appDir "C:\Program Files\Mozilla Firefox\browser" - {4d83e823-e163-4900-832f-f7e6dd8a9d3d} 3336 "\\.\pipe\gecko-crash-server-pipe.3336" 1916 21de9aeec58 gpu3⤵PID:1308
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3336.1.1733783845\1764764551" -parentBuildID 20221007134813 -prefsHandle 2412 -prefMapHandle 2408 -prefsLen 21706 -prefMapSize 232675 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {ce7b37b3-727b-4e5a-90ba-4adb6601b5be} 3336 "\\.\pipe\gecko-crash-server-pipe.3336" 2424 21ddcb72858 socket3⤵PID:1952
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3336.2.116175039\850995091" -childID 1 -isForBrowser -prefsHandle 1668 -prefMapHandle 1660 -prefsLen 21854 -prefMapSize 232675 -jsInitHandle 1488 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {7eec728e-d907-406b-b0ed-b3ec13606463} 3336 "\\.\pipe\gecko-crash-server-pipe.3336" 3280 21ded7f5758 tab3⤵PID:940
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3336.3.554940483\191558681" -childID 2 -isForBrowser -prefsHandle 3968 -prefMapHandle 3964 -prefsLen 26519 -prefMapSize 232675 -jsInitHandle 1488 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {b82cbfdc-4cec-4cc0-b311-9aebf7d033a5} 3336 "\\.\pipe\gecko-crash-server-pipe.3336" 3980 21ddcb62558 tab3⤵PID:2160
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3336.4.1963525086\1699214876" -childID 3 -isForBrowser -prefsHandle 4540 -prefMapHandle 4556 -prefsLen 26578 -prefMapSize 232675 -jsInitHandle 1488 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {a83319cc-be61-425b-bb7b-41248a2f2885} 3336 "\\.\pipe\gecko-crash-server-pipe.3336" 4584 21defaa5b58 tab3⤵PID:1432
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3336.5.506173619\881955162" -childID 4 -isForBrowser -prefsHandle 5060 -prefMapHandle 5036 -prefsLen 26834 -prefMapSize 232675 -jsInitHandle 1488 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {0d25da45-074f-41c7-9cde-be0f007e8f2e} 3336 "\\.\pipe\gecko-crash-server-pipe.3336" 5072 21df1798e58 tab3⤵PID:1444
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3336.6.936202033\360073072" -childID 5 -isForBrowser -prefsHandle 5184 -prefMapHandle 5188 -prefsLen 26834 -prefMapSize 232675 -jsInitHandle 1488 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {74ca35c1-71c2-494a-8aa9-8b3552cd970a} 3336 "\\.\pipe\gecko-crash-server-pipe.3336" 5176 21df1398b58 tab3⤵PID:396
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3336.7.159515623\329421737" -childID 6 -isForBrowser -prefsHandle 5372 -prefMapHandle 5376 -prefsLen 26834 -prefMapSize 232675 -jsInitHandle 1488 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {00dffd30-9c6c-4c72-b97e-848b6fc3a289} 3336 "\\.\pipe\gecko-crash-server-pipe.3336" 5364 21df139b858 tab3⤵PID:4056
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\85w5cth6.default-release\activity-stream.discovery_stream.json.tmp
Filesize140KB
MD596412b8feed5de9ce8a582476dfce608
SHA1ab0807e9a36eaba24a7145c93a924311e0b85e22
SHA25640463dd3deab6a20e65ba5d35c82ab9eff1ef9b54a7ba0e614faa3f1fc4da705
SHA512fc11cb1d968d3ca1de963f2f9362812a8a84bd135f54d95901562e51b1a3000d3ed35237066a1b79f15137e6ac736408540d1c649c86354272012a59966a273c
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C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\85w5cth6.default-release\cache2\entries\250EE2BC03AFF526F1A1C3DB212A79DE3EB60D5E
Filesize14KB
MD56dd37d045dd8f384125b23d32a895420
SHA1817c337f3f9935916bbf4eba11f66c47f82ac952
SHA256f6fbdbd062b26662e94876d4ac83950931ac99ea67e80410d6c9a247565191df
SHA512ab6533e32bbdae482a608b7cfe24320fd96a2b997834c391d7f3cfeecf59aff482e6fcb898d8166c0bc2f33547ce7661caf83a3d84b5b908a4b29878f25f1810
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Filesize
442KB
MD585430baed3398695717b0263807cf97c
SHA1fffbee923cea216f50fce5d54219a188a5100f41
SHA256a9f4281f82b3579581c389e8583dc9f477c7fd0e20c9dfc91a2e611e21e3407e
SHA51206511f1f6c6d44d076b3c593528c26a602348d9c41689dbf5ff716b671c3ca5756b12cb2e5869f836dedce27b1a5cfe79b93c707fd01f8e84b620923bb61b5f1
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Filesize
8.0MB
MD5a01c5ecd6108350ae23d2cddf0e77c17
SHA1c6ac28a2cd979f1f9a75d56271821d5ff665e2b6
SHA256345d44e3aa3e1967d186a43d732c8051235c43458169a5d7d371780a6475ee42
SHA512b046dd1b26ec0b810ee441b7ad4dc135e3f1521a817b9f3db60a32976352e8f7e53920e1a77fc5b4130aac260d79deef7e823267b4414e9cc774d8bffca56a72
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C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\85w5cth6.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.dll
Filesize997KB
MD5fe3355639648c417e8307c6d051e3e37
SHA1f54602d4b4778da21bc97c7238fc66aa68c8ee34
SHA2561ed7877024be63a049da98733fd282c16bd620530a4fb580dacec3a78ace914e
SHA5128f4030bb2464b98eccbea6f06eb186d7216932702d94f6b84c56419e9cf65a18309711ab342d1513bf85aed402bc3535a70db4395874828f0d35c278dd2eac9c
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C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\85w5cth6.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.info
Filesize116B
MD53d33cdc0b3d281e67dd52e14435dd04f
SHA14db88689282fd4f9e9e6ab95fcbb23df6e6485db
SHA256f526e9f98841d987606efeaff7f3e017ba9fd516c4be83890c7f9a093ea4c47b
SHA512a4a96743332cc8ef0f86bc2e6122618bfc75ed46781dadbac9e580cd73df89e74738638a2cccb4caa4cbbf393d771d7f2c73f825737cdb247362450a0d4a4bc1
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C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\85w5cth6.default-release\gmp-widevinecdm\4.10.2557.0\LICENSE.txt
Filesize479B
MD549ddb419d96dceb9069018535fb2e2fc
SHA162aa6fea895a8b68d468a015f6e6ab400d7a7ca6
SHA2562af127b4e00f7303de8271996c0c681063e4dc7abdc7b2a8c3fe5932b9352539
SHA51248386217dabf7556e381ab3f5924b123a0a525969ff98f91efb03b65477c94e48a15d9abcec116b54616d36ad52b6f1d7b8b84c49c204e1b9b43f26f2af92da2
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C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\85w5cth6.default-release\gmp-widevinecdm\4.10.2557.0\manifest.json
Filesize372B
MD58be33af717bb1b67fbd61c3f4b807e9e
SHA17cf17656d174d951957ff36810e874a134dd49e0
SHA256e92d3394635edfb987a7528e0ccd24360e07a299078df2a6967ca3aae22fa2dd
SHA5126125f60418e25fee896bf59f5672945cd8f36f03665c721837bb50adf5b4dfef2dddbfcfc817555027dcfa90e1ef2a1e80af1219e8063629ea70263d2fc936a7
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C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\85w5cth6.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll
Filesize11.8MB
MD533bf7b0439480effb9fb212efce87b13
SHA1cee50f2745edc6dc291887b6075ca64d716f495a
SHA2568ee42d9258e20bbc5bfdfae61605429beb5421ffeaaa0d02b86d4978f4b4ac4e
SHA512d329a1a1d98e302142f2776de8cc2cd45a465d77cb21c461bdf5ee58c68073a715519f449cb673977288fe18401a0abcce636c85abaec61a4a7a08a16c924275
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C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\85w5cth6.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.lib
Filesize1KB
MD5688bed3676d2104e7f17ae1cd2c59404
SHA1952b2cdf783ac72fcb98338723e9afd38d47ad8e
SHA25633899a3ebc22cb8ed8de7bd48c1c29486c0279b06d7ef98241c92aef4e3b9237
SHA5127a0e3791f75c229af79dd302f7d0594279f664886fea228cfe78e24ef185ae63aba809aa1036feb3130066deadc8e78909c277f0a7ed1e3485df3cf2cd329776
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C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\85w5cth6.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.sig
Filesize1KB
MD5937326fead5fd401f6cca9118bd9ade9
SHA14526a57d4ae14ed29b37632c72aef3c408189d91
SHA25668a03f075db104f84afdd8fca45a7e4bff7b55dc1a2a24272b3abe16d8759c81
SHA512b232f6cf3f88adb346281167ac714c4c4c7aac15175087c336911946d12d63d3a3a458e06b298b41a7ec582ef09fe238da3a3166ff89c450117228f7485c22d2
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Filesize
6KB
MD5d0701f4db874e0497c6873c8b61cb9fa
SHA12fbe0b3e77c08c46d2cb8a82b7678b48202cfa6f
SHA256d74dd16fadd894dc15732fa590a2460ff1209f5a9fb4ee6d8e8bc694fe07ed52
SHA5123d2dc3a25d96248d3ae97cb1a4fcd38bae49c43d18c82da7139b0528487c5673e8ec4a0f75ec15dbae859039a438792da8bf99a1a03ffda5b640268cebdf61b9
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Filesize
8KB
MD5e87d189a73f1ea04b8dae699bd73cc8d
SHA14183b24a1751a3334b156512e6a0cb709b405d2e
SHA2560a6f9ff4cde28aae2493c6f8b480839c6945fbc9fc283440ad50ea890f816201
SHA512e969c9450ac57d6579ceb748e775ec5040ab6e7b539e3004baa224d5ce1ceb7f8037d98d5f0fff7853e4cda507433e78e7fba805bb98fb59534c5d778c4567cc
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Filesize
10KB
MD5829c5922c4a84c17bd1cf8044bdf0954
SHA1147edee42d72987f8c1b00a73554cf05f6bb3514
SHA256c6909495da189fa91b8cf30de90da7d9d40be6feda05e934441420285adad93e
SHA512f57368b8403df03ca143bc070926fdf64517bf5cc4ffaf60eab614b0b4a54848cc5c2ab6035b67567d7918e385353209210f631f766aedf7dabc013929f55f5d
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Filesize
6KB
MD53bee9a9c0135595424a3b743a4da5a64
SHA16a178a5d91c6bfca3eafb745770194a84e95e38e
SHA256c757d10a1e220a5d113efe36761c58ee7a8e3c7815e93ab69cc4ca6712f333b0
SHA5120dcd5368a79f75a16d7c940f68bdf14c97e46b5ab28887e679151b64fdeed48258cd2e3a304d16912add6e41a2677cfc159a458c8fb94ad7951024a66e6c5f2e
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Filesize
6KB
MD5f73e52d124620d05267ba934f3b312d3
SHA134121aa291d9f88b3e8e3a2fa37cb1c06cac2d30
SHA256fc898a91ae8ce9d241c586f5dee2e60450dcdc5a31f1a7015d6dc2f4fefe4ac7
SHA5124ef67626a2ba584817d707c71ddf7e7ce75a780921c3fcdfa8a03de0de9303c4b548ce3c3b493f1c4876d511271978bcd3cdbc2d1003b23c2459847180045d46
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C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\85w5cth6.default-release\sessionstore-backups\recovery.jsonlz4
Filesize1KB
MD5ded0024bd41bc27506baa63ca38b04ba
SHA13167e4a1debf710d89389e4ff05659c83e39509d
SHA256383c6f22de2d6d20ff757d2b4d565e79a8cf00501fbf3d73b73cb6efbfd951fe
SHA51275fff2456f282194ebc65e04f5b06f9bc37b6478f347769468b73144cfa8561896b23ea4edaa630f31320e3e07f41fb51a09afdcf6ec55897d08d7b92530e853
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C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\85w5cth6.default-release\sessionstore-backups\recovery.jsonlz4
Filesize1KB
MD545cbd8d2b2d8a708d0c7cb2f73dd00b6
SHA17f3712048c43b03b3b44749942a1bb54e0cf375a
SHA25641b8e48f52ceeab9c6359f94a6e71cc9f7b912d34f3768e68c9d42592aa7ddd8
SHA51269222616777476de48c83c8b7c1718b58252baa48fb593bc5de6fa27e31730250485a82fda94665f1aad0773fb0a0fe0bf95870f0f7f8ed45315066c05597c6c