hxxps://github[.]com/NET-FrameWork-x64/NET/blob/main/NETFramework[.]zip

Analysis

max time kernel
68s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
16/12/2022, 12:49

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General

Target

https://github.com/NET-FrameWork-x64/NET/blob/main/NETFramework.zip

Score

6^/10

Malware Config

Signatures

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\PhishingFilter	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\ClientSupported_MigrationTime = 89be75672cbed801	iexplore.exe

Modifies Internet Explorer settings 1 TTPs 41 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3752597280"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 90023fe14c11d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = b0392ee14c11d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31002956"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000035296a28a6977848af994ef1b999827d00000000020000000000106600000001000020000000ca1350a1972e2e88b06fc086dd7c82f5edca373f815981b0b909ee814e38334a000000000e800000000200002000000052ffbd3b402730e5993fe88da53c69bcc15bcc92afc632e8ddde84afc9aec3e620000000eac4899d198be07b40310dc98744c2ba39a7f5768287c037e4a78e38b8c5411f400000001a4c6d08f5a8e0acc674b0891dbc7877a0e6dc5615a61d9ad971ca41d67213a1b764983c6e5e149fc3d51d62991fad02545318edf9749d6c3f45a6b670bd71e3	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0A91C55B-7D40-11ED-A0EE-C243EF799EB6} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31002956"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\RepId\PublicId = "{95588B95-202B-4669-BE0C-9CFD8072A51D}"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\RepId	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3743378523"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3743378523"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31002956"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377959927"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000035296a28a6977848af994ef1b999827d000000000200000000001066000000010000200000007ea480d4e2117266a9597ec3aeee04b5c0836981d6e5a1ca7f8bddf86ce99c4d000000000e800000000200002000000091a7e6a9fd47b4f334d596371187f6f3d6de30a7382e2eafe1649c7b125ad0a720000000841d2c000244cfb345fd1aeef85fd7f850f555e70d3927f388ea02e8a24198ba40000000859707d8a014fab5df01561fd44c672fbaa1e186dbfaaeb62516e725fbb94355e48f898f75d0506b869ee855fbff677088f8a675c57f5baf23e1feacc1b6494c	iexplore.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	iexplore.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3076	start.exe
3076	start.exe
3076	start.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3076	start.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2128	iexplore.exe
2128	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2128	iexplore.exe
2128	iexplore.exe
2072	IEXPLORE.EXE
2072	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2072	2128	iexplore.exe	82
PID 2128 wrote to memory of 2072	2128	iexplore.exe	82
PID 2128 wrote to memory of 2072	2128	iexplore.exe	82

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://github.com/NET-FrameWork-x64/NET/blob/main/NETFramework.zip
1⤵
- Modifies Internet Explorer Phishing Filter
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2128 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2072

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4540

C:\Users\Admin\AppData\Local\Temp\Temp1_NETFramework.zip\NETFramework\start.exe
"C:\Users\Admin\AppData\Local\Temp\Temp1_NETFramework.zip\NETFramework\start.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Web Service

T1102

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
471B

MD5
ef882f1932c9dd68c8afda2ebc27364b

SHA1
4593fc073e078220e8d3e5fb6cf205430119c058

SHA256
5144288105e9dfc259e9526551a92ff8f2edf2c15f395c4b3948930139bece23

SHA512
abed9efc412039e8364507af7c857e2bb88ded864ef4d7754e6b4ea4ea750217954a672efb3a6c663498858e5c7660a33b02891f0f0d2b11a9616bd7c138931c

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

Filesize
434B

MD5
85ab411902c3da30da263b023e362276

SHA1
604d80259be0eb5932fbeb39bd839279728d112c

SHA256
376fa0925d3842a578291e2589e763f695c731d17da775dfb37b691ae3cbea4c

SHA512
e582bf38a0c581b86500a3b39b0ccbf1b951d9305075be860a233d47e2d32332f202ce153aba19fb3451853e03a6eb11586b59cd8345d7151e91030af0d87993

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\ckj4gk4\imagestore.dat

Filesize
1KB

MD5
e94327f5b744beaf7d16273951a9b205

SHA1
b53273a636a90c3caa842ab4f7ab3ce37c442fe3

SHA256
96cf0539318d619515351ba953740f7709ae25b5a1af654319e6ce3e54dbe7b3

SHA512
044801bc5133c6e02c6c4d0097da2059a8760ade804bb95bf80d9053385f45aeb5e2202245efe2c351b9d9397bff0a0df83ed2d7952bad041b06ebac9cfff878

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZX6MAMIN\NETFramework.zip.yit75er.partial

Filesize
158KB

MD5
6ad0d1cb0da4f71f25c64871b027f274

SHA1
31f2a1359c4109c11da58acdb1e13f8172c4158c

SHA256
3389836d9b94dc5f1e6b73f313b09516bbf74df96965e33fcf0e3b5888220f3e

SHA512
3ee5f42795814972a0984f2f7a5ab3d3ada13f529df741d611c07deb24a7353620de6e4ab558ba0d13b8357e19bf4e802164b878800ad4bc3271b0b152f3c082

Download Submit
memory/3076-134-0x0000017B375C0000-0x0000017B375E2000-memory.dmp

Filesize
136KB

Download
memory/3076-135-0x0000017B1E960000-0x0000017B1F421000-memory.dmp

Filesize
10.8MB

Download
memory/3076-136-0x0000017B37AB0000-0x0000017B37AF4000-memory.dmp

Filesize
272KB

Download
memory/3076-137-0x0000017B37B80000-0x0000017B37BF6000-memory.dmp

Filesize
472KB

Download
memory/3076-140-0x0000017B1E960000-0x0000017B1F421000-memory.dmp

Filesize
10.8MB

Download