hxxps://nl[.]arjo[.]com/unsubscribe/u/925983/4bb4c02d46e70910936bcbab1d3d8327577c11139e69712b2ee26b56c5d5fa6f/675779350

Resubmissions

02/01/2024, 08:11

240102-j3lnfsgeh7 1

02/01/2024, 08:02

240102-jxblasdhem 1

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02/01/2024, 08:11

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General

Target

https://nl.arjo.com/unsubscribe/u/925983/4bb4c02d46e70910936bcbab1d3d8327577c11139e69712b2ee26b56c5d5fa6f/675779350

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
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\GPU	iexplore.exe
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\Toolbar	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	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\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000566b58630fb3a044b91770fce5e9b2d60000000002000000000010660000000100002000000035e3c82b4aa1f4158bb09d92422212b6b8b5a41995aa73683701cdba63226b52000000000e80000000020000200000006812c71ed8270030a35ad89571b1e037b79934984cb14022f73629b048fbe77120000000ce5acba5568e6c1d931bc19ce2710d492a5f12c2f4b3b4659bc8324433ff484c400000003a18cd348e5bcca05a2e694b5372df20230a268864024723579c3df8f326ae480e4e2d84784e52f0aa0e8fbd08e01b61879c697513f790f9dfb3046a0dc8ec01	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{9A18AF91-A946-11EE-9BAD-F2B23B8A8DD7} = "0"	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\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\SearchScopes	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\Zoom	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = e076c774533dda01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410345004"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	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\FullScreen = "no"	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\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	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 (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\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

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1048	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1048	iexplore.exe
1048	iexplore.exe
2816	IEXPLORE.EXE
2816	IEXPLORE.EXE
2816	IEXPLORE.EXE
2816	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 2816	1048	iexplore.exe	28
PID 1048 wrote to memory of 2816	1048	iexplore.exe	28
PID 1048 wrote to memory of 2816	1048	iexplore.exe	28
PID 1048 wrote to memory of 2816	1048	iexplore.exe	28

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://nl.arjo.com/unsubscribe/u/925983/4bb4c02d46e70910936bcbab1d3d8327577c11139e69712b2ee26b56c5d5fa6f/675779350
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1048 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
7bde65951c78f9df7b0bdfce0657a9be

SHA1
f3aa7328113edc693aa1b515cfe98715cc5af220

SHA256
ee7eda79786d60b880b570d2a298e0ec6514877098062d682be55c42dfc6a3e8

SHA512
229469dff9d5906671f67ae14affa8c2e1d3dae691326f0cb664e4d3375c08c7c2a14532239f9ff8acf83c780bd5d0b1a00989528e73fb027d0c8f2e47d4886f

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
9ba99646c9b41da0cfff1412d260c26b

SHA1
0044d6f1358cb4740a673a9c24f50550a3914af0

SHA256
30ee554ae43cfd2605176b4c7436b345119e72b84ebc877cbbfbb777ffe8d8a2

SHA512
8cacd9bfcdbad94b1264fbf5200bc1ad53fee9a905241f1cb12e742788d626ffd4d60ccc3fc819a3799cd47083fba01419a33f55d05331368a0cf689ffa6448a

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
c3d78d2392165bc58bd8b9c462729f2c

SHA1
9a36c237da8c2d3572d1ea92eb4d10657e52984b

SHA256
eb129e39523b404f5c5b7c6c1d848cbaacb97f0f8a2a3a56a9f2693853bc53f4

SHA512
e4e8ae88bd719030660a626de06fd62f48d12201127683870cd7023b9e2580d80d732844b5fc678303082f7ab2bab94d7f9fb409f8eaf1d8d469ec002f078d0d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
0ad99ca0de2e50423a5cd78e5fa6b34b

SHA1
40565d09055f1b14f802fa0abf876411fe4503ba

SHA256
c2172240e085674650fe1743d73bf7d06daf168e3e7cf613fd7e772a028ac5d7

SHA512
a99ac9a1613bf3df944f0b984340029a87fe941a980812acddaab17b0dee04e3ac7ca2ae549f2a74cdbe7517d30032d75504cb6464644ebc2bdf590f2367c753

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
8a81a43a24415075229d5d1b0fcdbcaa

SHA1
226768903412028c9aeced4fa1b376ead3d0e7b8

SHA256
d5893dd47282312cb85cf456c4ba5cf4718686763504f7d3ca1321c5a7240b7c

SHA512
5facdc206ecd464420d0097381011f7292a26161bca8d6c439821892d1227f574a6e74c5c4088c0139f0772946d94b9601f1563ab8eae26cb05f63c60526684f

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
435ae41cb2ce189f17c1f4eef335d461

SHA1
4d3e6cba2b3e8d8aefbfbee1870926ba470d0fb4

SHA256
5ff1c79ef6bd09b65681a7e79e2025cafd480196aad9dd7b469355bef16f75ee

SHA512
6f8e43558b8a035d8f955926f91b5c2265172b5a1b1ce09542723623bedb64f43a530d6652c63cf3ba6a9c32e8ab5181c6578b62b1c1ac8dddccbcb81f6a10db

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
5b80e4d42ad364b8c1c7be7d1cfdc7b8

SHA1
2c498e1a366112c5861df8a45e91b68c2b73f123

SHA256
2df9efaf41ca9e68f2809faf80e10aab62aeaa140bd139096cfc6396f4b5e802

SHA512
8180f1d7a8e3398818306cb870c0e409e4c20798e288729f3dc70a1cefaf2bf799c9bec0ead1bb98f07f740b763ae97fdbbf9926505afc5dc744409c8d59881c

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab5209.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar53C1.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit