hxxp://202cc[.]8170zt[.]cn/xudp

Resubmissions

02/02/2023, 12:45

230202-py79jsac6v 1

02/02/2023, 12:25

230202-pltwdsab8z 1

02/02/2023, 12:11

230202-pcth9sgb47 1

02/02/2023, 08:17

230202-j6qftahd9y 1

Analysis

max time kernel
73s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2023, 12:45

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General

Target

http://202cc.8170zt.cn/xudp

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 37 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = b0683eb20c37d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{DC5E8644-A2FF-11ED-B696-C2DBB15B3A76} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2976215185"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31012620"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31012620"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000007ee85ae2b26a8541922068939d6aaa6c00000000020000000000106600000001000020000000575610399c3cda0d88908e3b0dcb7affd5ed584427e35382ea5e91e824ff6e11000000000e80000000020000200000003d6d718326597210c8fee7dc966fa9c6277e68042928ac380c38add54a01a9e5200000002e36e62c566f1efd1d171e08028f6f02cf892627dd823d8c7eef988695d909b240000000e6466b644857eaa4122a4d0de80e7d0887f34d6ae98267f520d96dd84f1d387346fec7a296dbcf716fca25e9db4a00a33db2f0cc40072be4235098d5a5af5def	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2976215185"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31012620"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31012620"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2987464446"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "382110507"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000007ee85ae2b26a8541922068939d6aaa6c000000000200000000001066000000010000200000003ef54134305312d0f3225cb51a0503d32918181f451264abaa48a0f6df7ddfe2000000000e80000000020000200000005232305c61d643b06a7db22dc92f3b874fe2cb9350c76956b32e1e146f56fe2e2000000043c48be5a9a2de59ba35cfd573492dfda805719a769a10d6f1ce3b623a6e45494000000074e3d66c931df7c12f6e81d3ba3bd0278a023ae742575e3c703cedbe0f74a0992721f81f163cab7567e51fcbde292e3d73f500be5d8811e5b0d7466244315199	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 703656b20c37d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2987308416"	IEXPLORE.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4568	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4568	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4568	iexplore.exe
4568	iexplore.exe
3640	IEXPLORE.EXE
3640	IEXPLORE.EXE
3640	IEXPLORE.EXE
3640	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 3640	4568	iexplore.exe	82
PID 4568 wrote to memory of 3640	4568	iexplore.exe	82
PID 4568 wrote to memory of 3640	4568	iexplore.exe	82

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://202cc.8170zt.cn/xudp
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4568 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:3640

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
8795643bd9448f355f1e817b1beb8f13

SHA1
fc5afcd5dc1c57ec501109cb987bec2e7b628514

SHA256
c9a53a6962ee0ada77bad358699a886e9d54243a3ae24cc182acfeaef4dba134

SHA512
4a8bc9001359c55a68bb329ef000ea7506c003ef6a98d57d769ca020758bcde63d52b03add74e39294b7b0c52abb9a07ff6ec3bd1e66f9eca0e0675b2b9cd2f2

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

Filesize
404B

MD5
fa3739775149408d4baf1ae28da3b756

SHA1
74e934bc198e2292dfa6e16918bd247e46e13208

SHA256
8089ac5ba01cf1e8c62cb2b81702014c93883abba94f98e0c4c159546aae7395

SHA512
ef3710ff524cb8b580147836a8f420e873c27b67d8627a426bc1d98d36b085e3c481a4dda967d82ff69880ebf6a50193e65f35970df0dfaae34898b11b0d2fbc

Download Submit