1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b

Analysis

max time kernel
140s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
08/05/2024, 19:23

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General

Target

1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll
Size

1.7MB
MD5

e8a6c2ab4f7eb60046a6e16fdafc9705
SHA1

a41731a55543ff5071c423c7fcbca63528435aa8
SHA256

1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b
SHA512

03b8291e0b2bc27fda08beba74201da807a71f2dda51c61e4994e31fd0707b70762880ca5056aecfc39cb2850a32425f72896ed466be3ee9c63ae290f8578d85
SSDEEP

49152:SvzIlE8DCzICEqdLZ0zmhk6M0VWzSB7tsLHkJ5gQU/CIabjKoh9WYWw:ED8DCzICEqdLZ0zE4tDwrFIabjKoh9WA

Score

9^/10

adware stealer upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral2/files/0x00090000000226f2-1.dat	UPX
behavioral2/memory/1524-4-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral2/memory/1524-6-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x00090000000226f2-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1524	regsvr32.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x00090000000226f2-1.dat	upx
behavioral2/memory/1524-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1524-6-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D0498E0A-45B7-42AE-A9AA-ABA463DBD3BF}	regsvr32.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	regsvr32.exe

Modifies registry class 49 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{573FFD05-2805-47C2-BCE0-5F19512BEB8D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4FCEE402-10E9-4446-AE0F-AE48D6D62E9A}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F57FCE7-3DD6-4F92-AD77-EA0A6F768057}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8BA85C75-763B-4103-94EB-9470F12FE0F7}\ = " SkyDrivePro1 (ErrorConflict)"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0498E0A-45B7-42AE-A9AA-ABA463DBD3BF}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{573FFD05-2805-47C2-BCE0-5F19512BEB8D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Groove.SiteClientActiveX\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Groove.SiteClientActiveX\CLSID\ = "{4FCEE402-10E9-4446-AE0F-AE48D6D62E9A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E768CD3B-BDDC-436D-9C13-E1B39CA257B1}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD55129A-B1A1-438E-A425-CEBC7DC684EE}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8BA85C75-763B-4103-94EB-9470F12FE0F7}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0498E0A-45B7-42AE-A9AA-ABA463DBD3BF}\ = "Microsoft OneDrive for Business Browser Helper"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E768CD3B-BDDC-436D-9C13-E1B39CA257B1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD55129A-B1A1-438E-A425-CEBC7DC684EE}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SharePointWorkspace.Application	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E768CD3B-BDDC-436D-9C13-E1B39CA257B1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4FCEE402-10E9-4446-AE0F-AE48D6D62E9A}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0498E0A-45B7-42AE-A9AA-ABA463DBD3BF}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Groove.SiteClientActiveX	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4FCEE402-10E9-4446-AE0F-AE48D6D62E9A}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F57FCE7-3DD6-4F92-AD77-EA0A6F768057}\ = "Microsoft SharePoint Workspace Application"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E768CD3B-BDDC-436D-9C13-E1B39CA257B1}\ = " SkyDrivePro3 (InSync)"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8BA85C75-763B-4103-94EB-9470F12FE0F7}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{573FFD05-2805-47C2-BCE0-5F19512BEB8D}\ = "Microsoft OneDrive for Business Context Menu State Handler"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SharePointWorkspace.Application\ = "Microsoft SharePoint Workspace Application"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{573FFD05-2805-47C2-BCE0-5F19512BEB8D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Groove.SiteClientActiveX\ = "Groove Site Client ActiveX"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{573FFD05-2805-47C2-BCE0-5F19512BEB8D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F57FCE7-3DD6-4F92-AD77-EA0A6F768057}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0498E0A-45B7-42AE-A9AA-ABA463DBD3BF}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8BA85C75-763B-4103-94EB-9470F12FE0F7}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F57FCE7-3DD6-4F92-AD77-EA0A6F768057}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD55129A-B1A1-438E-A425-CEBC7DC684EE}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4FCEE402-10E9-4446-AE0F-AE48D6D62E9A}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD55129A-B1A1-438E-A425-CEBC7DC684EE}\ = " SkyDrivePro2 (SyncInProgress)"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F57FCE7-3DD6-4F92-AD77-EA0A6F768057}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F57FCE7-3DD6-4F92-AD77-EA0A6F768057}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4FCEE402-10E9-4446-AE0F-AE48D6D62E9A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4FCEE402-10E9-4446-AE0F-AE48D6D62E9A}\ = "Groove Site Client ActiveX"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8BA85C75-763B-4103-94EB-9470F12FE0F7}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0498E0A-45B7-42AE-A9AA-ABA463DBD3BF}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F57FCE7-3DD6-4F92-AD77-EA0A6F768057}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E768CD3B-BDDC-436D-9C13-E1B39CA257B1}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SharePointWorkspace.Application\CLSID\ = "{4F57FCE7-3DD6-4F92-AD77-EA0A6F768057}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4F57FCE7-3DD6-4F92-AD77-EA0A6F768057}\ProgID\ = "SharePointWorkspace.Application"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4FCEE402-10E9-4446-AE0F-AE48D6D62E9A}\ProgID\ = "Groove.SiteClientActiveX"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4FCEE402-10E9-4446-AE0F-AE48D6D62E9A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SharePointWorkspace.Application\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CD55129A-B1A1-438E-A425-CEBC7DC684EE}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 1524	2784	regsvr32.exe	82
PID 2784 wrote to memory of 1524	2784	regsvr32.exe	82
PID 2784 wrote to memory of 1524	2784	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\1073b4877c3b286aa928755b025f37d357661b2d3b10a8dbcfd8fc3e485aed0b.dll
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - Drops file in Program Files directory
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  PID:1524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

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:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1524-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1524-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download