hxxps://outlook[.]office365[.]com/Encryption/retrieve[.]ashx?recipientemailaddress=astathis%40almabank[.]com&senderemailaddress=Kim[.]Y%40bank34[.]com&senderorganization=AwGAAAAAAnwAAAADAQAAAJbvGZBF%2bU5IiagRavo4zW5PVT1iYW5rMzRhZmMub25taWNyb3NvZnQuY29tLE9VPU1pY3Jvc29mdCBFeGNoYW5nZSBIb3N0ZWQgT3JnYW5pemF0aW9ucyxEQz1OQU1QUjEwQTAwNSxEQz1QUk9ELERDPU9VVExPT0ssREM9Q09NWv1LBhTD80Wf%2bOdaFDnh0UNOPUNvbmZpZ3VyYXRpb24sQ049YmFuazM0YWZjLm9ubWljcm9zb2Z0LmNvbSxDTj1Db25maWd1cmF0aW9uVW5pdHMsREM9TkFNUFIxMEEwMDUsREM9UFJPRCxEQz1PVVRMT09LLERDPUNPTQE%3d&messageid=%3cCH2PR13MB3383E3514FB284B1563D8441C526A%40CH2PR13MB3383[.]namprd13[.]prod[.]outlook[.]com%3e&cfmRecipient=SystemMailbox%7bD0E409A0-AF9B-4720-92FE-AAC869B0D201%7d%40bank34afc[.]onmicrosoft[.]com&consumerEncryption=false&senderorgid=e4f6fbff-51b4-40a2-b370-d7fff9ca682f&urldecoded=1&e4e_sdata=sKN%2f%2fBGvAo0fgJ3FGyQjrv4gbr8ofrFq3RGJKYTO1utwY3jK3Ao%2bueK9Jv6eO6IOIidOKmVbp44DN4voVFY%2fIrEVZILccCNJ2oc7nQNZRT6HsTKbTZZUd%2fcV7OystfMX6AuaMnMjsK5hKir1%2fDwP2mMwAEoJ%2fJZzfN2XszOe5NFePutWk1%2bdMj6WCFD4VPzWNY6grII2ug1lg98Ftozq%2fSa73uX8B1NOaouQamF3npWVKnyYsCGPRGN9IHf1QZ7bLLlvj%2fiXgRWoz1GlEHIEtAKnH93XWOl9z65kh97S2vEvhftQawq%2bQyg83AdzogC1%2bvVrTecSeepLUTc4i43%2bAQ%3d%3d

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
26/06/2023, 19:05

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General

Target

https://outlook.office365.com/Encryption/retrieve.ashx?recipientemailaddress=astathis%40almabank.com&senderemailaddress=Kim.Y%40bank34.com&senderorganization=AwGAAAAAAnwAAAADAQAAAJbvGZBF%2bU5IiagRavo4zW5PVT1iYW5rMzRhZmMub25taWNyb3NvZnQuY29tLE9VPU1pY3Jvc29mdCBFeGNoYW5nZSBIb3N0ZWQgT3JnYW5pemF0aW9ucyxEQz1OQU1QUjEwQTAwNSxEQz1QUk9ELERDPU9VVExPT0ssREM9Q09NWv1LBhTD80Wf%2bOdaFDnh0UNOPUNvbmZpZ3VyYXRpb24sQ049YmFuazM0YWZjLm9ubWljcm9zb2Z0LmNvbSxDTj1Db25maWd1cmF0aW9uVW5pdHMsREM9TkFNUFIxMEEwMDUsREM9UFJPRCxEQz1PVVRMT09LLERDPUNPTQE%3d&messageid=%3cCH2PR13MB3383E3514FB284B1563D8441C526A%40CH2PR13MB3383.namprd13.prod.outlook.com%3e&cfmRecipient=SystemMailbox%7bD0E409A0-AF9B-4720-92FE-AAC869B0D201%7d%40bank34afc.onmicrosoft.com&consumerEncryption=false&senderorgid=e4f6fbff-51b4-40a2-b370-d7fff9ca682f&urldecoded=1&e4e_sdata=sKN%2f%2fBGvAo0fgJ3FGyQjrv4gbr8ofrFq3RGJKYTO1utwY3jK3Ao%2bueK9Jv6eO6IOIidOKmVbp44DN4voVFY%2fIrEVZILccCNJ2oc7nQNZRT6HsTKbTZZUd%2fcV7OystfMX6AuaMnMjsK5hKir1%2fDwP2mMwAEoJ%2fJZzfN2XszOe5NFePutWk1%2bdMj6WCFD4VPzWNY6grII2ug1lg98Ftozq%2fSa73uX8B1NOaouQamF3npWVKnyYsCGPRGN9IHf1QZ7bLLlvj%2fiXgRWoz1GlEHIEtAKnH93XWOl9z65kh97S2vEvhftQawq%2bQyg83AdzogC1%2bvVrTecSeepLUTc4i43%2bAQ%3d%3d

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 39 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "394571309"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1114123247"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31041633"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 308e824861a8d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31041633"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000d53c3f41f06a2044adba6d75851c475900000000020000000000106600000001000020000000b40280b02ecad7d0bfa500a130412f3e2dfae420f3e18f7ac7fb19029b21af14000000000e8000000002000020000000ef3f51320a7423b32d1f1ffb9b9e73d001085dc40ca845c36cedb9502a3f673b20000000482e5a18cdc460acd79ff4c5481fa23a3e891b6f734736244181e115269cc374400000004dcc5d80ba80c9143f93405c5d5ae4432d65d5ba3addc4ccc4de173ba2082e155d81d9bb08028abfcddfa6d83754b30b86d2385a33078a83613b301303173793	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 70c06a4861a8d901	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1103340668"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6D427D88-1454-11EE-8DA0-EE0C9724CE29} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1103340668"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31041633"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000d53c3f41f06a2044adba6d75851c475900000000020000000000106600000001000020000000f06c5731d65bd30fd58038f6d0b4667616d079767d0f27a47a5de08c0200dc78000000000e8000000002000020000000905c3f6558ee57597bdd41e04398b226c70a3cb1753aa9c2efd1cd410438200b200000006ab6ffed2dbf31f44c9f6af6952a9135f0e6e00ae05498dc261c5e38d04e3af640000000d19baf5e8a35aabd92cd131eddbb057ba621054fc76d7587c3a9fa59b3b4fe0abe198fcb4060489a690485eb5833034c235f01b0cb68e6be10e21c781c80d26c	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4452	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4452	iexplore.exe
4452	iexplore.exe
4692	IEXPLORE.EXE
4692	IEXPLORE.EXE
4692	IEXPLORE.EXE
4692	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4452 wrote to memory of 4692	4452	iexplore.exe	85
PID 4452 wrote to memory of 4692	4452	iexplore.exe	85
PID 4452 wrote to memory of 4692	4452	iexplore.exe	85

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://outlook.office365.com/Encryption/retrieve.ashx?recipientemailaddress=astathis%40almabank.com&senderemailaddress=Kim.Y%40bank34.com&senderorganization=AwGAAAAAAnwAAAADAQAAAJbvGZBF%2bU5IiagRavo4zW5PVT1iYW5rMzRhZmMub25taWNyb3NvZnQuY29tLE9VPU1pY3Jvc29mdCBFeGNoYW5nZSBIb3N0ZWQgT3JnYW5pemF0aW9ucyxEQz1OQU1QUjEwQTAwNSxEQz1QUk9ELERDPU9VVExPT0ssREM9Q09NWv1LBhTD80Wf%2bOdaFDnh0UNOPUNvbmZpZ3VyYXRpb24sQ049YmFuazM0YWZjLm9ubWljcm9zb2Z0LmNvbSxDTj1Db25maWd1cmF0aW9uVW5pdHMsREM9TkFNUFIxMEEwMDUsREM9UFJPRCxEQz1PVVRMT09LLERDPUNPTQE%3d&messageid=%3cCH2PR13MB3383E3514FB284B1563D8441C526A%40CH2PR13MB3383.namprd13.prod.outlook.com%3e&cfmRecipient=SystemMailbox%7bD0E409A0-AF9B-4720-92FE-AAC869B0D201%7d%40bank34afc.onmicrosoft.com&consumerEncryption=false&senderorgid=e4f6fbff-51b4-40a2-b370-d7fff9ca682f&urldecoded=1&e4e_sdata=sKN%2f%2fBGvAo0fgJ3FGyQjrv4gbr8ofrFq3RGJKYTO1utwY3jK3Ao%2bueK9Jv6eO6IOIidOKmVbp44DN4voVFY%2fIrEVZILccCNJ2oc7nQNZRT6HsTKbTZZUd%2fcV7OystfMX6AuaMnMjsK5hKir1%2fDwP2mMwAEoJ%2fJZzfN2XszOe5NFePutWk1%2bdMj6WCFD4VPzWNY6grII2ug1lg98Ftozq%2fSa73uX8B1NOaouQamF3npWVKnyYsCGPRGN9IHf1QZ7bLLlvj%2fiXgRWoz1GlEHIEtAKnH93XWOl9z65kh97S2vEvhftQawq%2bQyg83AdzogC1%2bvVrTecSeepLUTc4i43%2bAQ%3d%3d
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4452
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4452 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4692

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\Local\Microsoft\Internet Explorer\imagestore\boznf1h\imagestore.dat

Filesize
5KB

MD5
97edf8cc2ccb77cf081fe94c0d1a68bd

SHA1
c9c071fa50e130c0cd3987ff395dbe385f965e97

SHA256
9dba3df90bb3631b040b146befb9dc17a52494d0c64c54d51a0702c20b6b38e1

SHA512
bec667b688e80dbb3e9b3441c51b5879db9c8f62d3808a8528a5b2e1aa20542653e7e71e42c75a583029a69f0e5b0c869777901baa0e1af26eb9d80d869f91ca

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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8RG8LESW\favicon[1].ico

Filesize
5KB

MD5
f82312f1281e8d6c87f7ffca0a7d147c

SHA1
103d0c7b915b40584e0543856e87b360568fe8c8

SHA256
dec51a1a5c6f5daddebe7c7d1048319969446f03de89a953c3c3514f8db08e8a

SHA512
c9ea288cc6d9d4b9872fcc49fd2ad461c9600b807311cd82c07c68465224d3a6004fa89f60088a34bbcf4ca96404f5a1b01e6009ca4fd964d63a53cf856f7c0c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\97XIF11T\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit