Analysis
- max time kernel
130s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
02/02/2024, 21:29
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
8a941b3741b3b84f032df3fa8df05f38.dll
Resource
win7-20231215-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
8a941b3741b3b84f032df3fa8df05f38.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
7 signatures
150 seconds
General
- Target 8a941b3741b3b84f032df3fa8df05f38.dll
- Size 473KB
- Sample240202-1cdzcsabhp
- SHA256 86478dde55423ea79373c7717db21ed3f16998b88d4c2f14c029b0e4f05e8a2a
- MD5 8a941b3741b3b84f032df3fa8df05f38
- SHA1 709f907993134a655d996978a9e800f4168de1c4
- SHA512 8fa577f4217816fc86fdbff9a052473a8de43cccaedbb81ccd26b2b187908dcee6416f191a2671b9617b61e40a00f113b3377af5f82366967f4f0c6daf4ec592
- SSDEEP 12288:KEyS9OOCHzSCcVflpCLPnLTeeeAlj6o4A:k/HuCcZHCLLTq4f4A
- MD5 SHA1 SHA512 SSDEEP
Score
6/10
Malware Config
Signatures
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\esftzzeiwugqyn = "C:\\Windows\\System32\\regsvr32.exe /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\8a941b3741b3b84f032df3fa8df05f38.dll\"" regsvr32.exe - Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{92C942F9-347F-F784-D81A-6E4BF3C7D83E} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{92C942F9-347F-F784-D81A-6E4BF3C7D83E}\NoExplorer = "1" regsvr32.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "235735595" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000046600867cea8cb4995f7301d78886de6000000000200000000001066000000010000200000006828ae0919e1dee58cb73d4ea7f9e87f2292c5a1331d54bc6c4494ff9abd1f1c000000000e80000000020000200000003e06a9328fc9224fa674fe817cdf09f6b03efbce0cd6319674b5a5e0435202e7200000008c426758b48256fca4ddb3920aa7b991ca5e074bde0f6b634648ebcc1e7bd0624000000007ce5f49e073199cf6116559994b008c723465c333e3699e0dd4b734c8a075ad664c8262fb1c6092a1249f432053398eaae096242760316ce4d99ff600003914 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000046600867cea8cb4995f7301d78886de600000000020000000000106600000001000020000000a9322164b124f501b319c7930df9fe5cf6d6ce140aacd337d39089e9caa08d28000000000e80000000020000200000002d8b2775ff19525f3a7bb99d3298717168797196c9c69641ca02d7027f2fb46a200000004256348ee841bff7b9957bf5c139b1895b4dd368d19a0b00bc034997d8e644ff40000000c93989e474795aead4ae2859a21ce0b5815d3ede1c91cc8e9e96a0a7437c57f9faa6e21d6e3450dcc9fc4ded9ad3bb7e5aaec0160fa954d66de68368611752fb iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 50e651491f56da01 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31086111" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000046600867cea8cb4995f7301d78886de600000000020000000000106600000001000020000000cc093f7de853d224ce4186264e0a123c73ac1cfa3e52403debfa0a94add39d22000000000e8000000002000020000000c6caed37204ce6c4ab6d2d67a50315566543aa8daf22482c089880ec7205205320000000fe1bbd43381d74d7a872a802c5f31c0f4a5c2ccfd3cf2983bafd8fb8107bb91d40000000f9311a0e7f29e11ece6ff7dfd11edc8cc627191439c7ff788bde813f7a7cc85e5399d4597fcc22b73b11494900a3704ad66d960f6e139435abf5eaba6f3165f5 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "413674377" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "233861030" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31086111" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31086111" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "235735595" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 700027211f56da01 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 109ec1341f56da01 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\MINIE iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31086111" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{398480F4-C212-11EE-BD28-4ECC77D3B663} = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000046600867cea8cb4995f7301d78886de6000000000200000000001066000000010000200000009c3959ee9e0ddf23800aebddeb2dfbb88e63732058629a5e1c5dcd8dd3484c6e000000000e80000000020000200000006885c63355045cfc71beba30b18e765663584b7d72ab71b2aa2a64cfdd9e89fe20000000365fb2ff26242ca4582c89c4b68567819e3547de9195670239d4f8884f1b508a400000006af60a188f3e0a4ceb9fbea7852beac56a778783b23860280f6766ae4740a6b9aa3afa8208f96244a331a682e79ffa71381f7b49738ec9cd6e5717621930b54e iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 10a4390c1f56da01 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "233861030" iexplore.exe - Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{92C942F9-347F-F784-D81A-6E4BF3C7D83E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{92C942F9-347F-F784-D81A-6E4BF3C7D83E}\ = "egoads browser enhancer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{92C942F9-347F-F784-D81A-6E4BF3C7D83E}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{92C942F9-347F-F784-D81A-6E4BF3C7D83E}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{92C942F9-347F-F784-D81A-6E4BF3C7D83E}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8a941b3741b3b84f032df3fa8df05f38.dll" regsvr32.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4684 iexplore.exe - Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4684 iexplore.exe 4684 iexplore.exe 3216 IEXPLORE.EXE 3216 IEXPLORE.EXE - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3404 wrote to memory of 4528 3404 regsvr32.exe 85 PID 3404 wrote to memory of 4528 3404 regsvr32.exe 85 PID 3404 wrote to memory of 4528 3404 regsvr32.exe 85 PID 4684 wrote to memory of 3216 4684 iexplore.exe 88 PID 4684 wrote to memory of 3216 4684 iexplore.exe 88 PID 4684 wrote to memory of 3216 4684 iexplore.exe 88
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\8a941b3741b3b84f032df3fa8df05f38.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3404 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\8a941b3741b3b84f032df3fa8df05f38.dll2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4528
-
-
C:\Program Files (x86)\Internet Explorer\ielowutil.exe"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding1⤵PID:3704
-
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4684 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4684 CREDAT:17410 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3216
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
- Size 471B
- SHA256 3e1607026f332ae19539f0621c8b18c820245d196febf8bf258253667ebc94d8
- MD5 cb99b6d5040641081530ef8f6049f1aa
- SHA1 3fa9e3148cbee0e561da3787919043483ee5e5c0
- SHA512 13cdc5995fa4741d474c00491ea55b26101a88ee3495327950249e8bef1e16de29f46d0c1ffef3682eac0e041f0b06545d51ef8152a33606f0e13fe35e6a1d83
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
- Size 404B
- SHA256 0c305345a67f5005297bcff546fb7f67030568ef9b93d7ac5e4341b3366d7853
- MD5 552a65f15928a9b10754de336408c493
- SHA1 10c43af1c72462c22e65e08c3bc6ef25039304aa
- SHA512 fb9b90454c3952dcd4c0c342e2437b5a67ddbd8a7aece549331106a0dd2972849ae56368d3aacb6716fb4e8c640133c1de43f39290965d0de5aa1e27da200e50
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verBAD4.tmp
- Size 15KB
- SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
- MD5 1a545d0052b581fbb2ab4c52133846bc
- SHA1 62f3266a9b9925cd6d98658b92adec673cbe3dd3
- SHA512 bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
- SSDEEP 384:79Jv9DF9/C9qc9/J9V791T9TK9Xf9Nm9xQ95a9BR9fV:79Jv9DF9/C9qc9/J9V791T9TK9Xf9NmT
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\1RIAF1U2\httpErrorPagesScripts[1]
- Size 11KB
- SHA256 65cc039890c7ceb927ce40f6f199d74e49b8058c3f8a6e22e8f916ad90ea8649
- MD5 9234071287e637f85d721463c488704c
- SHA1 cca09b1e0fba38ba29d3972ed8dcecefdef8c152
- SHA512 87d691987e7a2f69ad8605f35f94241ab7e68ad4f55ad384f1f0d40dc59ffd1432c758123661ee39443d624c881b01dcd228a67afb8700fe5e66fc794a6c0384
- SSDEEP 192:x20iniOciwd1BtvjrG8tAGGGVWnvyJVUrUiki3ayimi5ezLCvJG1gwm3z:xPini/i+1Btvjy815ZVUwiki3ayimi5f
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\1RIAF1U2\suggestions[1].en-US
- Size 17KB
- SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
- MD5 5a34cb996293fde2cb7a4ac89587393a
- SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
- SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
- SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\SB302YPZ\errorPageStrings[1]
- Size 4KB
- SHA256 a1270e90cea31b46432ec44731bf4400d22b38eb2855326bf934fe8f1b169a4f
- MD5 d65ec06f21c379c87040b83cc1abac6b
- SHA1 208d0a0bb775661758394be7e4afb18357e46c8b
- SHA512 8a166d26b49a5d95aea49bc649e5ea58786a2191f4d2adac6f5fbb7523940ce4482d6a2502aa870a931224f215cb2010a8c9b99a2c1820150e4d365cab28299e
- SSDEEP 96:z9UUiqRxqH211CUIRgRLnRynjZbRXkRPRk6C87Apsat/5/+mhPcF+5g+mOQb7A9o:JsUOG1yNlX6ZzWpHOWLia16Cb7bk
- MD5 SHA1 SHA512 SSDEEP