ec5306c1b6ee59026f26e14c270054f948d0b69e8e607935154d1157c2a2da3f

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 17:07

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General

Target

c66ce24b692fb5c566f5a15b49711ee0.dll
Size

63KB
MD5

c66ce24b692fb5c566f5a15b49711ee0
SHA1

7a1d778c685fe5f4f50256f3539d6340ed052a1c
SHA256

ec5306c1b6ee59026f26e14c270054f948d0b69e8e607935154d1157c2a2da3f
SHA512

32497f149819f8982627786ebd96be4a743f1c9d052a7cdf099401a717658336e22bc41be3a5e11c6f787db90e2b9f1a8763caf6dae8256625e22b2463ff19fa
SSDEEP

1536:plSuzaGMnbag25kW7ft/klN3OK5PbkGma:7TUbaglWz+POK5Tkx

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
15	3624	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "666503918"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000279dbe2cb9d5c4499f659dc4fb2861cc0000000002000000000010660000000100002000000064800e536a43c642207a649642a78775684a4cd6003680e2ac995d3a3463eaf0000000000e8000000002000020000000f6f7c3175cc8decd77799714db57b022c1289b1acda6d196691c9f0b64a64a25200000009aeb0f7405d4c739703179f0659f1bd2440b27f245cfb580c322714929ed247140000000d769f00bfb374b7b6a19e4fae191c4268a80f1c50670cee420efd3d376ca62e518e8c3fb76eaca35f262d89bb43e7f4a02e8fd7b5942520b96ace74b34a42634	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 104203366975da01	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000279dbe2cb9d5c4499f659dc4fb2861cc00000000020000000000106600000001000020000000e7b30ac8baefe90888f119761bda6142a0bde22578591d7b87d20f790e423e55000000000e80000000020000200000003c7ce283f85cb975fb0bca734b30d0e3e015e2642e15658c7123062cf11772a5200000009f0a22e4ef5591a69490db0ce4ba03974dd0076fb0741f166a833bdc5bb8d0c140000000d495ee66d835984caf1f2903eb428ae0e1d1e9da05fd668d47efa6cfeecde86c4f45269fe86ead2ed8e7d7039c6eeb583a75fe3b3fed3891b549c045854692b3	iexplore.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Internet Explorer\Main	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Check_Associations = "no"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{525AE9B6-E15C-11EE-96FD-4A48D699C5C8} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31094121"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "666503918"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31094121"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = a0ac94366975da01	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3624	rundll32.exe
3624	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3624	rundll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3300	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3300	iexplore.exe
3300	iexplore.exe
4900	IEXPLORE.EXE
4900	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 3624	4412	rundll32.exe	87
PID 4412 wrote to memory of 3624	4412	rundll32.exe	87
PID 4412 wrote to memory of 3624	4412	rundll32.exe	87
PID 3300 wrote to memory of 4900	3300	iexplore.exe	105
PID 3300 wrote to memory of 4900	3300	iexplore.exe	105
PID 3300 wrote to memory of 4900	3300	iexplore.exe	105

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c66ce24b692fb5c566f5a15b49711ee0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c66ce24b692fb5c566f5a15b49711ee0.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3624

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
PID:1560

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3300 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\Local\Temp\Low\tmpF732.dll

Filesize
2KB

MD5
2dc61eb461da1436f5d22bce51425660

SHA1
e1b79bcab0f073868079d807faec669596dc46c1

SHA256
acdeb4966289b6ce46ecc879531f85e9c6f94b718aab521d38e2e00f7f7f7993

SHA512
a88becb4fbddc5afc55e4dc0135af714a3eec4a63810ae5a989f2cecb824a686165d3cedb8cbd8f35c7e5b9f4136c29dea32736aabb451fe8088b978b493ac6d

Download Submit
memory/3624-0-0x0000000010000000-0x000000001003A000-memory.dmp

Filesize
232KB

Download
memory/3624-1-0x0000000000DA0000-0x0000000000DA6000-memory.dmp

Filesize
24KB

Download
memory/3624-2-0x0000000010000000-0x000000001003A000-memory.dmp

Filesize
232KB

Download
memory/3624-3-0x0000000010000000-0x000000001003A000-memory.dmp

Filesize
232KB

Download
memory/3624-4-0x0000000010000000-0x000000001003A000-memory.dmp

Filesize
232KB

Download
memory/3624-5-0x0000000000DA0000-0x0000000000DA6000-memory.dmp

Filesize
24KB

Download
memory/3624-7-0x0000000010000000-0x000000001003A000-memory.dmp

Filesize
232KB

Download
memory/3624-38-0x0000000010000000-0x000000001003A000-memory.dmp

Filesize
232KB

Download