hxxp://amer[.]ng[.]msg[.]teams[.]microsoft[.]com

Analysis

max time kernel
152s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
09-05-2023 15:03

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General

Target

http://amer.ng.msg.teams.microsoft.com

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1755531432"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{890F1574-EE8D-11ED-8227-6E4EC519A222} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "389814600"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000051d6db365ce0f843a8e6cfaf226c4d2b000000000200000000001066000000010000200000006d4558492039fe36fd9f4b716364c0e626d98f4720a02cf78410cdf40232f845000000000e80000000020000200000003997eb37feb53728e47e5430d4acc1d7414d67ba27b0421ab13abc95b1f670d320000000d2232c4d24570ec4139fbbfe4ebe8b32874e242075907c2dbe920938a2f7b75e40000000b9b1ef967b98ef8d4573c99480a670a87f6fafdc17a38ae3b9f6d7b282e86d98db97c37c9b537427fe527efecb6047dd1a7216707d5a94bfca505af40b5064e0	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31031962"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = f0443b6f9a82d901	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1755531432"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31031962"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000051d6db365ce0f843a8e6cfaf226c4d2b00000000020000000000106600000001000020000000dd76c27a69b74b1244a80399b3c64a60b093dea1d95a4d5304b851462503965e000000000e8000000002000020000000e34cda5dbf83e647f4b58814f76235fa0f207f80874d6dbbbc6ab47b14a8502920000000db43bfe53e5c53040b3b90200c58712fc19a8383dee885a04f5078708c03c5c840000000e71bff5468b149360b5fbfbead944549a5fe655e264d1174a23ce9cf415e279c93254f1f4a8e3371d8462c7779e987004271da5d00d8a778fb65832673aacb1d	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = a0b98a6e9a82d901	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4628	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4628	iexplore.exe
4628	iexplore.exe
5056	IEXPLORE.EXE
5056	IEXPLORE.EXE
5056	IEXPLORE.EXE
5056	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4628 wrote to memory of 5056	4628	iexplore.exe	83
PID 4628 wrote to memory of 5056	4628	iexplore.exe	83
PID 4628 wrote to memory of 5056	4628	iexplore.exe	83

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://amer.ng.msg.teams.microsoft.com
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4628 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:5056

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\69C6F6EC64E114822DF688DC12CDD86C

Filesize
779B

MD5
2a39c7f400695b09f3493ea65ac6033d

SHA1
ed104ef4bff3d8e61275aab55cd3f9a696fdb130

SHA256
eb2c7ae2ef10459d6a851ae223a4077d6f812b1334da4cfd50fa00f8d4564c28

SHA512
3c0a28c75b70da6722380929c6105bbcbf21f2cdd81d175335805ee318f64e3fa72b6503d7f54942325300260a1b5e6579b84a4d23f3df5dc9915c3940031b71

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\69C6F6EC64E114822DF688DC12CDD86C

Filesize
246B

MD5
e26ca6a23580bb68633b392933091fb4

SHA1
fc25d4d75f2bda6fcd7323eaa5b5f9365f47641f

SHA256
51843d59cfe1de4d5cc7b79b76b303d5286145e7bcf51b3ec7da23d15b4b7a43

SHA512
ebb1e4e2da78e110aaa0d4bbb186224cb14ce0356129dd07ba3191c84b90997556dedb894ec69abd22907a949a955cf7fae6a3bb7c3042c6920dc30e7a734c21

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verA5F4.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit