Analysis
-
max time kernel
125s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
25-12-2023 09:18
Static task
static1
Behavioral task
behavioral1
Sample
142d350e4166402c753e18783f78b4d5.dll
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
142d350e4166402c753e18783f78b4d5.dll
Resource
win10v2004-20231215-en
General
-
Target
142d350e4166402c753e18783f78b4d5.dll
-
Size
66KB
-
MD5
142d350e4166402c753e18783f78b4d5
-
SHA1
39837392f9323c1a87504e308f933b84bd70b776
-
SHA256
781460a27dd5fd83a69b8beb218ead93d5b117e98b14f002a6e6ff59e9fe2201
-
SHA512
1a7e3424f0faafe78e6a7f83d4f4ca733e78444cca611f2d4404dc220eac0d4d13245c5a1e9ced3c36e47c348cddfa337a1897bf13b57046ecc12fb94df4dd39
-
SSDEEP
1536:xKaouK0rof8925RMehGW436cHSP33qshuqRtq87:xKaouK99MqB43o3ZnI87
Malware Config
Signatures
-
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2184 set thread context of 2536 2184 rundll32.exe 15 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\IETld\LowMic IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\LowRegistry IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\SearchScopes IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "3" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{39292231-A4F2-11EE-8DA8-6E3D54FB2439} = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\PageSetup IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\InternetRegistry IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Toolbar IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Zoom IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "409868955" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\IntelliForms IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2536 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2536 IEXPLORE.EXE 2536 IEXPLORE.EXE 2704 IEXPLORE.EXE 2704 IEXPLORE.EXE 2704 IEXPLORE.EXE 2704 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1812 wrote to memory of 2184 1812 rundll32.exe 16 PID 1812 wrote to memory of 2184 1812 rundll32.exe 16 PID 1812 wrote to memory of 2184 1812 rundll32.exe 16 PID 1812 wrote to memory of 2184 1812 rundll32.exe 16 PID 1812 wrote to memory of 2184 1812 rundll32.exe 16 PID 1812 wrote to memory of 2184 1812 rundll32.exe 16 PID 1812 wrote to memory of 2184 1812 rundll32.exe 16 PID 2184 wrote to memory of 2536 2184 rundll32.exe 15 PID 2184 wrote to memory of 2536 2184 rundll32.exe 15 PID 2184 wrote to memory of 2536 2184 rundll32.exe 15 PID 2184 wrote to memory of 2536 2184 rundll32.exe 15 PID 2184 wrote to memory of 2536 2184 rundll32.exe 15 PID 2536 wrote to memory of 2704 2536 IEXPLORE.EXE 14 PID 2536 wrote to memory of 2704 2536 IEXPLORE.EXE 14 PID 2536 wrote to memory of 2704 2536 IEXPLORE.EXE 14 PID 2536 wrote to memory of 2704 2536 IEXPLORE.EXE 14
Processes
-
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2536 CREDAT:275457 /prefetch:21⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2704
-
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE"1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2536
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\142d350e4166402c753e18783f78b4d5.dll,#11⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2184
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\142d350e4166402c753e18783f78b4d5.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1812
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD5ae61ee198f4e19cf15495fa3325c8d44
SHA134231c623a90fe9db946f005997180beeff11a91
SHA25683ebfddc08c903959039572f001e33a6256e4d9b81b0a11b426e6d654ea5bcc8
SHA5120affaecd9e1bbe6c4bf612d809ed799a8795a18f7795b4bc6f726f81b24999fb6e1ea8cf55bdc7809dc4a3d45c348809d871bfcfa9c633f4d95a24cb3442f44c
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD58a3f1ed75beb42077302d8eab9083031
SHA15d3beb3f1a6fb03c8ab4dd9a9c72e195df1d3e11
SHA256e639f3457084d7229fb4f1964af96f2613c9e1002c9e20921f21981c5a64ead1
SHA51287750e9f5d065638c094064220a84524b60a9dd2c05d3c3b89716fcc8f7880c58227c12ed7397edfd69a60e8d05b82d35b569832705d67c882cd2757380b2a53
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD5a20e5fe662b7a2c5b5d1f9cad972725a
SHA1f44cfec2812650c8fd443c44ccb054d6565edeb6
SHA2562f8e1a9b83a1085804b7fa0a5c5007637c987f550e8e548ee0c101ecb6c887a8
SHA512833ce2f685a7c180ebde7261cfb7ab74a21a3e2a2f22314b73e665cb35b054823c2d15e8404505110023c3e75fb15641b295b31b3f759fe08c94e18467cfee8f
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD5c733bede7d21483cd13e8732d87e1614
SHA1773e13272cebceb5ff3bd3b821e265b0da886ca2
SHA2566d1a5b65b787cc99e2f82d132a51441d7a9859569fd0767933887bbb81130e6c
SHA51246d73f15b3df0f6cb77f3cfd33198756b64b2a9732fa6a573595331be7f6539e80d039534d9036ff5d94775cc43efdd5591f3917a0630821c50e70d13233c495
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD5d5b8ac172ad9ac40a75eeddb19e2070c
SHA1b936d2a2c80e0cc41a7c8f164abdbbb46d5a85d4
SHA2566aadaa2e9d7591628c8641cfae190915d9b166ef97b838cf9297ec2988707446
SHA51265ea2d3496006e446cf43574c27fe4f5d406ed4e0344f6ac004c08dfffcc01ab7946114517682bcc8b0f6afd888b9ef3a7f40372d1ce07e70ef090d686bfffa5
-
Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
-
Filesize
171KB
MD59c0c641c06238516f27941aa1166d427
SHA164cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA2564276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
SHA512936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06