hxxps://polo[.]feathr[.]co/v1/analytics/crumb?flvr=email_link_click&t_id=6356b996c1fccc23a0986068&crv_id=6463f2e263e449c697f8129f&p_id=63f8eb47f677980531c7036d&cpn_id=6351a37c0a37531d83bf8948&rdr=hxxps://dw3pi3[.]codesandbox[.]io%2F%3Fregister=bWFuaXNoLmphZGVqYUByZW5pc2hhdy5jb20=

Resubmissions

23/05/2023, 12:42

230523-pxnhrafc54 1

23/05/2023, 09:26

230523-lelpnafe5y 1

23/05/2023, 09:22

230523-lb59wsfe5v 1

23/05/2023, 09:21

230523-lbt7mafe5t 1

Analysis

max time kernel
235s
max time network
297s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
23/05/2023, 12:42

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General

Target

https://polo.feathr.co/v1/analytics/crumb?flvr=email_link_click&t_id=6356b996c1fccc23a0986068&crv_id=6463f2e263e449c697f8129f&p_id=63f8eb47f677980531c7036d&cpn_id=6351a37c0a37531d83bf8948&rdr=https://dw3pi3.codesandbox.io%2F%3Fregister=bWFuaXNoLmphZGVqYUByZW5pc2hhdy5jb20=

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 39 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "391617941"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31034756"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3908328213"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000f02d272a495b0142a781610ce5ec5e350000000002000000000010660000000100002000000008d2243470d6cbf23729c0d5c532008885020094359420c36b8a41fb2bf33f5b000000000e80000000020000200000004bb88db6dd6fdcde5fd1628162f8ae49623e2985aff4e7579babbaa11174743820000000170c5202cd1755a599793df2fe8a20e546a9bec4b743e555ce634787d29b15d5400000003c0d20f9fc44e9fb36fb014f73cc6ad8acd1f417bbbe4623264a4ecf07b3e8767e5c06b4baabfa659b9a71232d2e3cebc45eba52e5901cd3037f8667d563d586	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 30269eeb848dd901	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{141FB7DE-F978-11ED-ABF7-6E9A6C474791} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3908484373"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3930830156"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31034756"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000f02d272a495b0142a781610ce5ec5e3500000000020000000000106600000001000020000000553222211a26b0d73764e268e6b8cd20790206ba735636d1fef2d815caa9c416000000000e8000000002000020000000260c7a05d386d3143b44f916aff88ec8b14b66bf430b6cdff69163de18810a7220000000fc7a55cef19599d1bca165974fedd442abc2f129befe25a38f4cbd7f61b3c4fe40000000565709a5e2fed6acf4b0e250d12b9522907c453c52a635f228e007c5414d30161a5795c7bb6d1caf3cbc098124f915336a59097a02b01cc4009a352cc21596ad	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 809d81eb848dd901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31034756"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1456	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1456	iexplore.exe
1456	iexplore.exe
2108	IEXPLORE.EXE
2108	IEXPLORE.EXE
2108	IEXPLORE.EXE
2108	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 2108	1456	iexplore.exe	84
PID 1456 wrote to memory of 2108	1456	iexplore.exe	84
PID 1456 wrote to memory of 2108	1456	iexplore.exe	84

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://polo.feathr.co/v1/analytics/crumb?flvr=email_link_click&t_id=6356b996c1fccc23a0986068&crv_id=6463f2e263e449c697f8129f&p_id=63f8eb47f677980531c7036d&cpn_id=6351a37c0a37531d83bf8948&rdr=https://dw3pi3.codesandbox.io%2F%3Fregister=bWFuaXNoLmphZGVqYUByZW5pc2hhdy5jb20=
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1456 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2108

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
94efe971fd70d9d426978045456a879d

SHA1
97f170ffda6afd79be0795ffcc37c7efd82ee801

SHA256
fcfaf64c502c0feb0175aa72247927eeecd556004302a20e09f6fdaa644504e6

SHA512
baf5e9e1e9bbbaef3cd6365ec2b1c71314c14d0acd5837c1975e71a374b9fe724035929b47fe5bf5aef5845ef6eb17b178f20460b115419094733dfc8a27799c

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

Filesize
434B

MD5
f0e746ba1b9fd2365f7e745ec802e272

SHA1
78b03ee82bcab4b80e81a82ecae49cc832836012

SHA256
0269c848aae905a883f57d520b7fe1f4ee10ff81656f0f470dc355359dfa39ac

SHA512
6b185f282bd7da45e66055796a5727f00ec3fc796cfdad850c1d8fd6a4df8e39af26405e1d5a009c023a17480b813431a6a5867b05c69895c447cd31350590b6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\dcpq11e\imagestore.dat

Filesize
3KB

MD5
44991050402a71486b552905b506bb01

SHA1
6388576b0a8c49d562ffdb4f36f0bbb40ef236de

SHA256
4713e72f73605e87e29103be674c096e207d5970fa82ea6b2c4d6b79427ccc79

SHA512
cbce9e8a8e6be242191de9d6b72c6a7864e1a3b4927bbf8894ef5a4f5f41ae95a3bd7710ab77dd31b1cfe52bc90e61f8fc69db438e8dd64ec507684c74753f52

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4HAJQ22Y\banner.0b5d84a2b[1].js

Filesize
3KB

MD5
d071b69dd295c87d7145c6296cb6de04

SHA1
a01e4efb6f459f2c9751c45aa98e483fbe920031

SHA256
683fbdef88b2ebf85e44c498687952697f4093fb1ff40f884eb6a2f3c74d0bb7

SHA512
b6db3ed024ab5c111c4d3f1da2756f49948585f30383682b7b85d8cc83f82be5b370c89630f1acf284b95c32986d44dcdb8a6509440e195d22a9feb9cc13de1a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4HAJQ22Y\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5AN3FZ97\sse-hooks.f742b80f43c5a2e0e619b0d97b5886cd[1].js

Filesize
171KB

MD5
55fc9ab355faec160228ef95e3c2b8bf

SHA1
48da48d28c9d868bab01fff2acd879c260b4c052

SHA256
7b792d9cff94a4f92d164ec7233833c903b4fdbaef13e37a0dc4258b8312ca83

SHA512
ba21f51a675c6d4a8fe069d8382af1812b3bc8888bdb3d1ef74a017b934775ba81890ac971164a90fb1e74c3af1461f3b1bcced884d2a0e4d1ff22c7f73a031e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5AN3FZ97\watermark-button.f4f9aed52[1].js

Filesize
2KB

MD5
8d1b32d2c888e49391b924d7ee395c1f

SHA1
c4ea654d576151a063040734935cfd7cf2a7fa77

SHA256
f74bf2cf5a8225beb66712ff4e859c5d4ba9c24123e6de2f427b4b9fde408928

SHA512
e6faf9e2dd7ea5730415285fd82271ccb62792eb2a7bfac6c4647a61ea2988b2aa28b7f75ed8e0c4e262116de9379dff32e2e84dc123d97ded3bc64cdd6f53ff

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\LZ0AI98S\favicon[1].ico

Filesize
2KB

MD5
fd8d37896781cee6e67781d13f32e69b

SHA1
afd5fb05ea0942bf9a9ae0f01d9edeef967b1cd5

SHA256
0d73291f77484d427869f38962b399ea359c9df97ec190f143ee113f321f4943

SHA512
367476aa2092fc75337b8ce8c0a1cad0d0d5b1add77b2570370a5acece9efe62358ce4c54b10094917363728dcc8e31ebe82c28901ad2285345faf38eaeca9bd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\LZ0AI98S\v52afc6f149f6479b8c77fa569edb01181681764108816[1].js

Filesize
19KB

MD5
d294b48fb7400508953205265f95d2e1

SHA1
fd545d38241c9c56e81f61e45cd239976ecd0b46

SHA256
13a548e040a1ec08f77911fed1d559b95e5daae0ee227e632140e003c7268e7b

SHA512
8c6093a43a410180c6358479ced2ade0140f19e7f53f482237a6465548bcdf990517cf053a69a7f2305058d82b35df20fd8bb8db535d81687042868e3c57e50f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\S64KWKX9\invisible[1].js

Filesize
24KB

MD5
a062f38889166707d99a5e0f9aee9a0e

SHA1
fdc69831df8af41d673acb94f4fe6e8c9925390b

SHA256
bace673530cac80c696549980e37730ce66fa81a15db91043797efc1bc08e80b

SHA512
4a19c17480f18bf58cd6c60cee91961932bf1b0043bd908bbcd60aa23a5e2503b230e9e9ca66bf2ed0e54122a5e0794cd6f330f9adad1012e5fb4636aa889d73

Download Submit