hxxps://yunwei[.]hytera[.]com

Analysis

max time kernel
77s
max time network
197s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2023, 10:19

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General

Target

https://yunwei.hytera.com

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 51 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4279388514"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4279388514"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLsTime\url2 = 0000000000000000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLs\url3 = "https://login.aliexpress.com/"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{29D869AF-DC40-11ED-8FFF-6201C35E5273} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLsTime\url3 = 0000000000000000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31027276"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31027276"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLs\url1 = "http://yunwei.hytera.com/douc/api/v1/sso/source/proxy.html?restapi=https://yunwei.hytera.com"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\TypedURLsTime	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLs\url6 = "https://twitter.com/"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\IESettingSync	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLs\url2 = "https://www.facebook.com/"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLsTime\url5 = 0000000000000000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "388405341"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4289389683"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLsTime\url1 = 6dd8fd054d70d901	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLsTime\url4 = 0000000000000000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "6"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000010d3bb75b0ea114e9ca1233a5a090b7b000000000200000000001066000000010000200000001bca0ac79052e2cf7d97e395dff19ca0adc21b3062a9c92d38d95a741d98d612000000000e80000000020000200000002d88c2a39af6d73b6c7a88eaf60b1d9257a922a5bfe3df7725ef0388b10db77620000000da3cce73a4880143d8ca7ae988e2f70cc700db96c8e76c7838f226c31e758f26400000005e33b660048789e8d2879c96a349810cc2164a8043b1c1720f0265bae7330ee944531735f93068a16c527d6d7f149303d6404d5c6f5e86f96cb1f387fbc525d8	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 60de82194d70d901	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000010d3bb75b0ea114e9ca1233a5a090b7b00000000020000000000106600000001000020000000fd4cfada3f5cc8f1e1411a1c28f1d0002dbb352c2f45e42e1c9d0c7882258e0b000000000e80000000020000200000006870d51b4db23f1c70d12ec1401bcdd766daa55e4a54c06bb9c1c7c520748d3c2000000033b9a14637106277c1ca72bbd89a5e4be9f72ac3e11a61480e4dd140b2408f0e4000000004f170add03667c4e2cf48fa5a46bb4793dfcb794f5c8b966ae07138d9d91131b35278e8df0429f97faddaa7f9fe71eac3af1012f22a82295805376f2b3c7541	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 300f91194d70d901	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLs\url4 = "https://signin.ebay.com/ws/ebayisapi.dll"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLs\url5 = "https://login.live.com/"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLsTime\url6 = 0000000000000000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31027276"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\TypedURLs	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4840	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4840	iexplore.exe
4840	iexplore.exe
2532	IEXPLORE.EXE
2532	IEXPLORE.EXE
2532	IEXPLORE.EXE
2532	IEXPLORE.EXE
4840	iexplore.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4840 wrote to memory of 2532	4840	iexplore.exe	84
PID 4840 wrote to memory of 2532	4840	iexplore.exe	84
PID 4840 wrote to memory of 2532	4840	iexplore.exe	84

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://yunwei.hytera.com
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4840
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4840 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2532

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\6BADA8974A10C4BD62CC921D13E43B18_1DC6D7385EA816C957BA2B715AC5C442

Filesize
1KB

MD5
e20d7280e8f88d270bbea1fe6cecd983

SHA1
2cbb30df23f7d03e7280127a57e6cc0fc84ffdf7

SHA256
4556a0cce338d79114ffb4a7d50e086937613a1739a4d0eb10599762a78796d5

SHA512
d578f7362182331d20c3d1a9a02a2378b69d7a952a9fe7251bd1cf3f66a2c3f6c756d99e3e0c5a14b4b0139a7bf93f42c4ae5336cf415c39f0706224973ce24a

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
891b5acf10b182162f05a8c36b7b0e22

SHA1
fed1a5048dffb073be946b34a2ec5d06c2834691

SHA256
e3b3d4764d28f69161d04db149d7eab78f50c84f00b21cf0013ff2a06da420ab

SHA512
74a15c06837d5a95adc89d6c48675d169e0f8bc14103874fe84f7a84e1e3b385f832a732543b9aa74fad45bf48335a0050d4d9df1f53945cc7caed1eefbe7679

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6BADA8974A10C4BD62CC921D13E43B18_1DC6D7385EA816C957BA2B715AC5C442

Filesize
416B

MD5
e6a1e3a1dcce183faffb8a9e75a6ede6

SHA1
ffebc9d288c924fd9e3545373d4d5dc653e1ee0f

SHA256
9e15eef09dfd5121121e8045649f0499776e95d36a687dc0347d8ec932d171b5

SHA512
918eb018b352af515d291bb4090183f3a8c8b39fc2d94b719f09e70a8722ee2f8c973f8b8294003fcb6ba9dbded110359404572120afd4ba914f14a26233c801

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

Filesize
434B

MD5
12e68d1ae7f2d76e94e5678bdb0aafbc

SHA1
8e07d7548d7c444ce16f6717f30ac07d37e2c206

SHA256
b56619278cddfae993a2cd95a9c894e6346616936f2b458c2347419454f93f21

SHA512
b9a22f6a6d568978b9143201d2a559b4f20a69146df9c716bd2c53f8247e9d31f9a15c600e4940690f79e34aa40eaadfe224de874f28c1b5e2e86836e93f3736

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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\39K1WZBJ\qsml[1].xml

Filesize
285B

MD5
0b2cb0c9eedf3e1548c3fbbe2941e4fa

SHA1
8137b3ba2b8ba53b70fa99526da330d508ad66d4

SHA256
92b7634f4657fdd0a18b3e63afcdee423a0a92615b6cd9c29c1f6fa3c358c0c5

SHA512
2c2ab8c1cf6520e23da5f19bfba55d49764875e9bf75136bb7f777a6190ed68312eb67adce4d3fb35f85de9bb33c6826d4a8e219f14d62bc3fb0db5329a54034

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\39K1WZBJ\theme-light[1].css

Filesize
218KB

MD5
dd74211dad290a7ff5e71207c93b475f

SHA1
4be71471d1060bfdeff29d8fab246c5458be0aa6

SHA256
8247fc01cb646f33ea1a4cb0a2547a41894666b28ea6e7e259504f6439e68233

SHA512
8ea0531c67291800d74484b17a0fdee9b0c27f5aa1034586c4d7921ccaea79c6c41bfb9b76b9ad292c8f18a6fc7a94c99690aa6977268b02b1e7970cfe595e3d

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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4VT6R2QM\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\EY3KXMB3\proxy_b4a8f8fee05a[1].js

Filesize
3KB

MD5
0257e1b8fd0ff32b2f99dc3079460d23

SHA1
ac6d40d32f8e0435d13c9ef1d6cd8a433c7e01ef

SHA256
170861511f2dc093dcadb4f8681e29980288f037ed7e22f0189b35854bb4c756

SHA512
d711fceb51878882366c7dc77578fdf3e5d4cec0b0da3961eef29055f20c7a5bb4f29d5277086fe80ffb20e3b464320a4bd0f68f696bfd60708c0c8815cf0642

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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\U4IULL1L\env[1].js

Filesize
1KB

MD5
896d8201ee48ab3f1af66f85c41dd93a

SHA1
734e9cbdf52a62d5ff0260c227a320a7b98cb958

SHA256
f8b5442f7c5e7b54d942f5c4336ff45b0892e2a7970762b6ef0c7b1c29211473

SHA512
ce894041a13504c6b6004d490e9b776fe36852a674e3842cbebd1890561b737627a4d62d3f9aa33f6c45427be4dbcfb7112e6ea6452d50e6317edc5ccbbb8698

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\U4IULL1L\vendors_5d2d8eb11e01[1].js

Filesize
1.4MB

MD5
14508b0ea3b954a1766349ee68b94bff

SHA1
3458f4da07f73f0f01a4e5c5713951bafd188bf8

SHA256
da24ab94c1bb24d4184b94a1172277d89eb0584510e520428c9a3ce8b1c8d862

SHA512
ae96ed824bd358b7935a02a76cae63ca2206cda8192da1ce34d8739840597c2f54f9878a039ab1c5f4e8c0a85b0773f85c3a36d9774d693a4f2041036ce4bbca

Download Submit