hxxps://falcon[.]crowdstrike[.]com/investigate/events/en-US/app/eam2/investigate__ip?earliest=&latest=&form[.]sourceip=10[.]125[.]111[.]255 hxxps://falcon[.]crowdstrike[.]com/investigate/events/en-US/app/eam2/investigate__ip?earliest=&latest=&form[.]sourceip=10[.]125[.]111[.]255

Analysis

max time kernel
66s
max time network
146s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
18/09/2022, 06:21

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General

Target

https://falcon.crowdstrike.com/investigate/events/en-US/app/eam2/investigate__ip?earliest=&latest=&form.sourceip=10.125.111.255 https://falcon.crowdstrike.com/investigate/events/en-US/app/eam2/investigate__ip?earliest=&latest=&form.sourceip=10.125.111.255

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 36 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 70dad7fc26cbd801	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "370247064"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{21D29681-371A-11ED-A584-DA3F1CB7DA19} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000048ca5449a4d21846ba8a995ea0abd35a0000000002000000000010660000000100002000000050a3a1929cd988ef6ed14dd3f0a311edb1826ff584923dab6ade97ba4a4492f5000000000e8000000002000020000000eba61bd7d0f1e09e6190eabdf3c2a2baf964bf1dea8da38f6a7cb916149e461520000000a9da76fe99b189bac53ee37370d644802be6440810018ab50e139bc9011eb3b240000000dfeb9229ac4437bccf8b739ffe273a95c5a28eb637f4e596fac39e7c581de654dbc58d2d47b66c374a958b0f3c193237ed7d80f298db0b83cf11c4c5c878bc85	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
960	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
960	iexplore.exe
960	iexplore.exe
520	IEXPLORE.EXE
520	IEXPLORE.EXE
520	IEXPLORE.EXE
520	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 520	960	iexplore.exe	28
PID 960 wrote to memory of 520	960	iexplore.exe	28
PID 960 wrote to memory of 520	960	iexplore.exe	28
PID 960 wrote to memory of 520	960	iexplore.exe	28

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://falcon.crowdstrike.com/investigate/events/en-US/app/eam2/investigate__ip?earliest=&latest=&form.sourceip=10.125.111.255 https://falcon.crowdstrike.com/investigate/events/en-US/app/eam2/investigate__ip?earliest=&latest=&form.sourceip=10.125.111.255
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:960
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:960 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:520

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
344B

MD5
182bb751c6bf1ddac2edd9567f8f1027

SHA1
40c5fd7d8e98951884ace13aeb22c72aaddadde4

SHA256
0216c679d8e95f5b8467e580e920a9624a821a1fab9b401635ce87aa1b64422b

SHA512
e1ce4724b926330898a406688e5a1c39fc157cfad157f98c86b62c8eb5aca648905a4b515366de25f6f672ad6433955f7d4ed057048f4ee46d1a3f39e4427fdf

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\XCYYZROZ.txt

Filesize
603B

MD5
318d5dd8d9f9f308ffdd1af69b46bc8b

SHA1
0d2dfff5c41dcd825c95a2559fe7eeefeaf67ac6

SHA256
bdd60f2b62428494aa7b7406d5048d3cfed56695d3e27c7eb9c12f7799298be0

SHA512
0adaa30e94cb7dc554d5e7d80dbed05906c5c89ec68917c62251317bbd1a6633a158b8cf775687681015da5bd690768b0f9aa6a1424426445179dbe3f5fc4d7b

Download Submit