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
135s
max time network
153s
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, 09:22

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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
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31034728"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4135628682"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4082503428"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000003557767a65d6d042a808669dc11117ed00000000020000000000106600000001000020000000cc201a34fc9d283c8d27af938e1745a04fe495b18963c2b2667245fe7bbc5d6e000000000e80000000020000200000008b04ace3eb92e638305ee25f5e4ea5cf7bb615e9aba3cab4a834c9014387730320000000720dc8a5fec9224f1458e0ba533d9bbceea8944a750e43004b4a40a3bbbbfdd24000000082fb8d4b25b10bae600a7eabd6a67128cdeb82ccd919d951cff600b889cdab5032d95850c130824d33e79963f1c6e26879596494c848466b4f210357594b9121	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 90a725f9688dd901	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4082503428"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{1EA3D2AC-F95C-11ED-BDA1-DA4DA442263B} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31034728"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000003557767a65d6d042a808669dc11117ed00000000020000000000106600000001000020000000a80a14df5aa5d45d97226582b40180f4ab6f9f069ebeaa3c9cac9fb3f0190bef000000000e8000000002000020000000626bed20496069e3a9285b8ddf304a16f4deecaeb03ae13a450d09fa8730b6c02000000005ed6ce22e5b3ae38059823a8e232c4d3e004e04d353f05bcdeecde6babfb9b4400000003590cd78cbca2f86eee56cc6ed8905b2e2cedf963c13de5e02bb99232c1f786b13dcea0896ef375f7e1b4947a67be46f07e36629e52ffc041b59523542a16e56	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = e08f0bf9688dd901	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31034728"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "391605936"	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1804	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1804	iexplore.exe
1804	iexplore.exe
3888	IEXPLORE.EXE
3888	IEXPLORE.EXE
3888	IEXPLORE.EXE
3888	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 3888	1804	iexplore.exe	85
PID 1804 wrote to memory of 3888	1804	iexplore.exe	85
PID 1804 wrote to memory of 3888	1804	iexplore.exe	85

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:1804
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1804 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:3888

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
404B

MD5
17e367411818c514e95ca1b6f546fefd

SHA1
ede7a656ab7cf358ca6600a92ac0eaa66c485166

SHA256
571fe8d2638af95942d0e3e98f15264de76b4347841219932c29043ecffde98e

SHA512
afa99805314a49799be89df94ffaf43c3e93bad5ba6b8b4f3af0649e678dccb78949adc0d99b5895ad94460f8a45a62c6a03246b70bab2b4c9023952e6bda2ef

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\q7s3h6i\imagestore.dat

Filesize
3KB

MD5
3e076e912ea6fb966fca70cf467d133e

SHA1
b9d707c83339ac0794da4772685df5d110341c5d

SHA256
01bfd1077e12871143b86bf6df3f3abe7836e254deb54c5d9bd62330eacffc11

SHA512
7ad03007cf67ccbf7ac8c4a5bac1953593379d4a43f4e3d1046f150d4fac1986bde03110532ed186da8e410e8f048dfa0e4994caf666c35942636f74413214a2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BMP3ERH\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\V6GB5GU8\favicon[1].ico

Filesize
2KB

MD5
fd8d37896781cee6e67781d13f32e69b

SHA1
afd5fb05ea0942bf9a9ae0f01d9edeef967b1cd5

SHA256
0d73291f77484d427869f38962b399ea359c9df97ec190f143ee113f321f4943

SHA512
367476aa2092fc75337b8ce8c0a1cad0d0d5b1add77b2570370a5acece9efe62358ce4c54b10094917363728dcc8e31ebe82c28901ad2285345faf38eaeca9bd

Download Submit