hxxps://www[.]post[.]lu/documents/35703/5319535/POST_Logotype-circle[.]png/80c57083-77dd-4a7a-8e7b-9223afab8644?t=1498562277275

Analysis

max time kernel
69s
max time network
138s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30-01-2023 16:03

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General

Target

https://www.post.lu/documents/35703/5319535/POST_Logotype-circle.png/80c57083-77dd-4a7a-8e7b-9223afab8644?t=1498562277275

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 36 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 402ff8decc34d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000095f44cabcdd4cf499a4c06ccb3ec664000000000020000000000106600000001000020000000d0d88c44aaeb1726b86ddc566601d789f0f05ca3800743c23cddcff690eb6686000000000e8000000002000020000000dc88bb84966893381e8aaf3627dd852671ae922c00badc7bbe605eb17d55b97a200000004a3be4e29c9d416374b979acb2253e8888e0f6082415e8e0bcde54dac4e075f34000000086adafd2420c7617c120b8898579b205ef207c8f9a0e2e4a4799d04db9cb18a9fe3525db16a3ef787c05fd1cda944f8ca816eab41038f8bc9937ebe5117f852b	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "381863183"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{02C1E561-A0C0-11ED-B51C-6E705F4A26E5} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1096	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1096	iexplore.exe
1096	iexplore.exe
964	IEXPLORE.EXE
964	IEXPLORE.EXE
964	IEXPLORE.EXE
964	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 964	1096	iexplore.exe	27
PID 1096 wrote to memory of 964	1096	iexplore.exe	27
PID 1096 wrote to memory of 964	1096	iexplore.exe	27
PID 1096 wrote to memory of 964	1096	iexplore.exe	27

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://www.post.lu/documents/35703/5319535/POST_Logotype-circle.png/80c57083-77dd-4a7a-8e7b-9223afab8644?t=1498562277275
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1096 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:964

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\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
340B

MD5
528dec20f7ee436f98db8119a04c1d9a

SHA1
8ac6f067f945ae3b9f0d7273561b83440a9ad274

SHA256
d65a846e5874cb6d519ef5160eafb6459e21b791e624b020f129b785cc184ceb

SHA512
c6c2fc2be0979eb6997dda486c41f58e487b96f485225d1a83712a1ec9a64a22b3bff3cb6d54efea180194f35546f0e0dd891d6f330c51ce4912e57aeb649f3c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\1evexod\imagestore.dat

Filesize
5KB

MD5
d878f935ffd755837040a69f2530728f

SHA1
7a38d204434ed137cb836e26bb329048a30ffa4b

SHA256
d6c762f82f265b7242bcd18d03ab279f5260398ea7c26fef0a0a07195a8e6e68

SHA512
7dace2e845cec3d5f0db122932c213a016eee85d57ddc4aaf24c38dee8d9cced0a93455e9bfed1cc244bb6d9ad99ede9976b171e8517224ae760260aad4d94de

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\87ST3YPU.txt

Filesize
605B

MD5
fefe8b648795b076204c253db5f56ef2

SHA1
26ac94011f3ff44e33f95391e9f51e1d27f9dc4a

SHA256
3ef63acb89d1f0fc0d03e5630989cd1ed2f2e3d6c1f1356eb5440d30d43e3414

SHA512
3f65028aeaa7cc15b6bccd914762f759413e81fd16ac546f61ca97498168e409d21c07b9291bc704b1a11fe0d1e3a827387a75d3d27831588b5b87d5a9d963be

Download Submit