f2fc5e65cc3a5bf9d0aa9141b3eb4bc390dcb7a25483d0cd0bb6cabaae2013f0

Analysis

max time kernel
134s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230221-es
resource tags

arch:x64arch:x86image:win10v2004-20230221-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
13-06-2023 05:08

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General

Target

fyb_iframe_endcard_tmpl.html
Size

520B
MD5

7844cba73b7b4b439b587dd501e92d82
SHA1

25a452bc6886d0e05d4a73da785021fd4c477a04
SHA256

e042e304cecd19bb6816de0150d3895e2717e66dda91f7e189610687c049dae6
SHA512

f54c2d7c0b265aa7c6feb18b8fb6740e01c9e3aeb19bf420d39832737fa59eed8fb959c8aa8a99c0efc87ca3399a244a918f0b4e90b0ee831a87e8afefdf2711

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 39 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1404670094"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7DC69EF5-09A8-11EE-8228-C27043D120DF} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 1007ee53b59dd901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000000e383c07032e224f959f84af8c74226b000000000200000000001066000000010000200000004b5f693b228743f622b3b767016f2af96762ad3df2d9ce9f4998641249f03904000000000e8000000002000020000000da10c412293da4da81e58afcfcb7ae9cb0c3f09911a9c60c5f68c5a665847b7d200000000fd82dc53fe0cc67d8ab05740281b69a73bb60fcdb2f9aa28cf7f4329c88fc9b400000000c4ce0d0edd6a487bfa873d2e6667ef9f8ffe6572eb68548293f8805d6164d1794b06f8dc1db2d7947feef97d5386b76e5bf1169db0a42cce7323adad3d995b8	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000000e383c07032e224f959f84af8c74226b0000000002000000000010660000000100002000000098a7dc70486d9b52a3235ed687f8dcecb69e07dba9a0ba3914c76b718035ec1f000000000e8000000002000020000000e885000ab0ed548d798af5653458bc8f63d3ebebc601c898ef2bad7383458e822000000031407e6495b93b28d07384b6db524a4d88bf5e1280dc03e150482106ae6c933d40000000755310b8b08da779f2d6647f290417d7aeffe99a028fb14ebf5eb8aa86945b4aadd0a64afd49064fb441d280f47d04acd6fd0353dea706defa25131a9a74474d	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31038901"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31038901"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "393397952"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31038901"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = d0630354b59dd901	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\es-ES = "es-ES.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1392795259"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1392795259"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1860	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1860	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1860	iexplore.exe
1860	iexplore.exe
4972	IEXPLORE.EXE
4972	IEXPLORE.EXE
4972	IEXPLORE.EXE
4972	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1860 wrote to memory of 4972	1860	iexplore.exe	82
PID 1860 wrote to memory of 4972	1860	iexplore.exe	82
PID 1860 wrote to memory of 4972	1860	iexplore.exe	82

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\fyb_iframe_endcard_tmpl.html
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1860 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4972

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
f00c651bd023e439cef538cb61938602

SHA1
7e49f7ce3c00bde7692a5fd85497e1f60b1f616e

SHA256
ac671834dcc3d8ef96272da936597334cccd7c1106beeac5919e6cb308f9bb66

SHA512
91ddece9b7c3fe2ab0d9b4891fbe522f344b58fedf99b5eee0f06e573770dfb96d69c0727102b94a22d34a671fa28cd51d90e4fd35b28443b260195a9ce53de6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
ab1d6f35c080e2cbe83d23948ec874a0

SHA1
28d58eb9f07cd92cfb84b94fec8fc08e923a3ea9

SHA256
d710aff523a48c8b6d56e318b9f6874507f6d9b0203ce66b927bacf75c02bd26

SHA512
b3a52ca3ec91354dc9c3fd526061341e199db7df15e42725e3121d0629dce3aca9c1c5273adfdeb25b6b84e33b199b9462774c7c54e971e26dd49f960e48e98b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GPVLIKPI\suggestions[1].es-ES

Filesize
18KB

MD5
e2749896090665aeb9b29bce1a591a75

SHA1
59e05283e04c6c0252d2b75d5141ba62d73e9df9

SHA256
d428ea8ca335c7cccf1e1564554d81b52fb5a1f20617aa99136cacf73354e0b7

SHA512
c750e9ccb30c45e2c4844df384ee9b02b81aa4c8e576197c0811910a63376a7d60e68f964dad858ff0e46a8fd0952ddaf19c8f79f3fd05cefd7dbf2c043d52c5

Download Submit