hxxps://www[.]yammer[.]com/jddealers

Analysis

max time kernel
79s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2022 20:20

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General

Target

https://www.yammer.com/jddealers

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 51 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\Total\ = "0"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 802cf104b914d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{2DAC292A-80AC-11ED-919F-5695DBFAB5D8} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31003833"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "47297565"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\DOMStorage\yammer.com	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\Total\ = "24"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "378336226"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\www.yammer.com\ = "24"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\yammer.com\Total = "24"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\DOMStorage\www.yammer.com	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\www.yammer.com\ = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31003833"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = a0b6e704b914d901	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e6851ef31fd3cf49b332bbb4721c974800000000020000000000106600000001000020000000ea62514d09d7b78b88983fc140db67c4617e3f515b0f48ca49cd09054c813e31000000000e80000000020000200000009f6e6168508b0b74936f9658a2034624f7eb1ae6fe9b73072feaeb91f261ce5b20000000653c7e531ac2aa4688f366753cb59ede21cc686973c786a80b65f2e1fd74caf6400000000b09e2f87e7579729426d4dbd53ce6a6b78478fee1d13d036fd986d54ec53aa4cadcf3e3b3c7ef6c1740f2a3e6f2cad816994189e27fb905563277d907261e59	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\yammer.com\NumberOfSubdomains = "1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31003833"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\yammer.com	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e6851ef31fd3cf49b332bbb4721c97480000000002000000000010660000000100002000000033c66c236d43ac96e8db257d98bede9c8d5e24a0d73e3f2c41fcc97fc6bd9c61000000000e80000000020000200000009964274ef4174c4d590d3029e738efd01249f9411a150628c2a2ead92cba0c7720000000cabf1667804efa9058013cf620a4a45b86be06482c0b0e0e6dc91a72cb79a37240000000ae129a03079e87a1aa8be7be11bd7ca877ba0405911646b17e975067730038d4bd8e328890b7103db8b61b5df1bb2a6867de94a191cfced5051d4084c687a919	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\yammer.com\Total = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "39172231"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "39172231"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4300	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4300	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4300	iexplore.exe
4300	iexplore.exe
4732	IEXPLORE.EXE
4732	IEXPLORE.EXE
4732	IEXPLORE.EXE
4732	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4300 wrote to memory of 4732	4300	iexplore.exe	82
PID 4300 wrote to memory of 4732	4300	iexplore.exe	82
PID 4300 wrote to memory of 4732	4300	iexplore.exe	82

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://www.yammer.com/jddealers
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4300
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4300 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4732

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
4be9ab121a39e812723996e08985a451

SHA1
c86edb51927e78ad75ac6273e287a4187f54b8ee

SHA256
db88db8fc754f8e979b7061497f98362bdf7c15984f402fe90586983f88b0b2e

SHA512
d8cd3a478546529741f1c8e7465014f3ce906994e94a5c8fd55167d6813c73841ece72c98d5212a23282633f841b9d13107954aae4a5256d66a9235c7caaf8b2

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

Filesize
434B

MD5
a8a058f2020617c26776ebffaea8063a

SHA1
0ed6d5038d0064a7fa4e6092a88adb8c4358f46a

SHA256
410eb255f78003fd18a9c305a68faf33083f4ddb396fc016d6fd00a27034f057

SHA512
36a25f22ebb5b2b507bf01de2dc3ca6ab3209d7a01f7f8893c44651a2732f006b5f5d95b5ef482974ab488f0bc61ab675b0cb22c8ccf0e7f4812a00908b8f103

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

Filesize
5KB

MD5
7c56c198eb4bdfc4ac1b2402b97c803b

SHA1
477a2ed0c87ee017f7b9c9ccdabd9e8d03f9460f

SHA256
484f2f309fa3c17719ba2a312ccaf71f0355268f825079d27af6dae15c28cec7

SHA512
3963944898291b7cbb27193e14d9abc2806339d572a60a19f8a2d32c592a08e1fedfdf46345921a69cdce3905dfc92e79f947364aef80c470e88d161156d4dd7

Download Submit