hxxps://forms[.]office[.]com/r/N7i7F7DAKW

Analysis

max time kernel
106s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2023, 19:50

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General

Target

https://forms.office.com/r/N7i7F7DAKW

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-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31023534"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3054189139"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000010d3bb75b0ea114e9ca1233a5a090b7b0000000002000000000010660000000100002000000041447b545c69cb324ef1437bd5a2628a2997fae3491a602729848fb89cf988d1000000000e8000000002000020000000ef4c489012e599f1a5ac9be9d0bdcee531ed1e3ae0bd478cd7d13e998d2db2c9200000000f9cb5060e474d2b1236fecca9010d27d53858fb8701748836985c042c3f4ddf40000000e09e9fd1170591d6293719ab993dd6bb5c9fd4963effde663b585870841df7aa8e1e527e6e7de6e22a176efa7f6b97c4e0a293325cb4cdee95e820cc0730ce56	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{DFE2F247-CDA1-11ED-8FFF-E2BD7878EA51} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "386798042"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3027782086"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3027782086"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31023534"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000010d3bb75b0ea114e9ca1233a5a090b7b000000000200000000001066000000010000200000008f50efe622f8a45a775273e0f3404a604276021e5053a9980e5362f60de655ff000000000e8000000002000020000000ab4874ae7efe492f0687a8ff2b7f09d44490c3e327830e81b86cbf05f0df2e2f200000001abb1a2d63fa50988a2538a90865d97b2b94db776f0a5599c7f470cc841e33b140000000bbeb92a510f04e67a28a45b1885af4633fdf3ad392212516cdbb23483ca6642b559845c23a98062ba7a76b1f0656609dc6045d63811b8776d7bbbfce9ca19d80	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 908498b7ae61d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31023534"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = b02c8ab7ae61d901	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1792	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1792	iexplore.exe
1792	iexplore.exe
3480	IEXPLORE.EXE
3480	IEXPLORE.EXE
3480	IEXPLORE.EXE
3480	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 3480	1792	iexplore.exe	88
PID 1792 wrote to memory of 3480	1792	iexplore.exe	88
PID 1792 wrote to memory of 3480	1792	iexplore.exe	88

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://forms.office.com/r/N7i7F7DAKW
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1792 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:3480

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
ec1a8bd1feddd633ab052e24541f94b5

SHA1
c7244380a737ba75df1093e7e5e8f7bc7d2ce59b

SHA256
422bcf49599facbf36bab286344c1b4e0e007665342b55d3c4eaec05e3cc2653

SHA512
86f9db12f706ace002fdd9936ec76e67f5d8660953fccf00d13072e49ac99047a1b7c93a53ea8fb9862ef74128e2fe988ef3b0511a510e942f35351ac313bc57

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

Filesize
434B

MD5
001e3f90cfa2161e429785bd91e1bd97

SHA1
c581babd4bfdebd8ea9dad7fc1eea985eb06f614

SHA256
33cd68203932c3be8ae4208044a3c1625e311cbd371dbe88a215bce23619d058

SHA512
b3ab697c92758152c2549aaa9bf6eb8f8b329a4fa8d7cd079e55ba474de3fee4b4edec2f06a8660e9c3aa3cb31ee682536c24533b10128ac5aba458bdad03d24

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\phzg4yt\imagestore.dat

Filesize
8KB

MD5
bc0218888f953c444331bbfc24803a5d

SHA1
c1db1f63059dcf518fddbb186982fa2a4eb3e48b

SHA256
d0b4cd222053b1f584a991e5926b7de9b744832807b411813f7459548f46c380

SHA512
906934235fbffcfc3f6093935ac784572c4a4a21d7ee77b05b197dd035eb7df10a9608c55f898df1da3881d39409b7bcf2c6f9789d5784ba4c109a6ee835fb9f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\39K1WZBJ\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\4VT6R2QM\favicon[1].ico

Filesize
7KB

MD5
9425d8e9313a692bb3f022e8055fab82

SHA1
eddcf3ea767d4c3042d01ac88594d7e795d8615c

SHA256
f2a1abcf12ebd0f329e5b66b811b0bd76c8e954cb283ce3b61e72fbf459ef6f1

SHA512
93b3eb3c4ce385d80d4a8f6902355bbd156ac1aa20b8869af05c8e714e90e74c5630bb8de34d5b8fc9f876ac44be314f3a2a08b3163295adadbc6dd7b8d23561

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\EY3KXMB3\light-response-page.min.ea52de9[1].js

Filesize
360KB

MD5
2300a776f76c6ff54d82e548d1efe563

SHA1
278ce99b4e1c17f4ba10201ec37be8ec84ca691e

SHA256
69b6eb3adaecc49e3d2051ced1b920c7c5b1cb94f713801873c5cc8c6655795b

SHA512
912e856c1b7ffd96ad72c7f9753552f8a89bf7dd9483515c02b9d1d07570c8c9f30731ef7f3a4f1a9ff027ff27ae2109561d4d5ab938d56fa46ef4ea2cc5983f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\U4IULL1L\light-response-page.min.4fec861[1].css

Filesize
100KB

MD5
877f3e0dc62691b6cc286dd97dd85be7

SHA1
2303d30d4c2dae84f01c0b761c1524256a5cefc5

SHA256
d093c11793b57f171120cc0301d8e1a59c7a8166b83a70de9cea1f19cc19bca4

SHA512
d6319318f101e18f6ec260f0d1f75f3d64dc6c51ca0dd3bed8f5208635b1c59de983008d3aaee63244f34a7f429e348568fac688f20bf85645a44794dedf7386

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\U4IULL1L\ls-response.en-us.bde8a5cd0[1].js

Filesize
27KB

MD5
6693f00066fbce40296f3f33d74b6922

SHA1
72192bee73fd65ad913e06fc5f9569a82c687b56

SHA256
933e7ac7d339bd2fc6a116cc6f86c40a365ad066bf30a350468cad2a88d45fff

SHA512
63f60d447c1931bf29a248fd9098992e572fcc305bd085c2987fbc4654b792b535cffbf20b574d938cde7f729788dcf708d8a07fab0429337e224eed20167f77

Download Submit