4dc9b0c20ea61d91d6a1b5bdce76fb5365de0762efb8f6c2925113c6a8950cae

Analysis

max time kernel
94s
max time network
17s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
25/03/2025, 17:33

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General

Target

4dc9b0c20ea61d91d6a1b5bdce76fb5365de0762efb8f6c2925113c6a8950cae.pdf
Size

211KB
MD5

930fc7badacf1a19816a97775662ae54
SHA1

d950e144b4c5a3eaacd2d9ed22b4c63264f70426
SHA256

4dc9b0c20ea61d91d6a1b5bdce76fb5365de0762efb8f6c2925113c6a8950cae
SHA512

585d5d16ed27e2e647d94bb7ce053ea4cb73c40a1ccad7502cb71d066b82fc17b605d23c2d04e25521e1785471a3fa678e26caee8d1075f271f69268042236e6
SSDEEP

6144:BahViqwtQgMGSsMoca/wuLQY7tXirGLz6VMgt:Be2QOSsPJPLQY7krGazt

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	AcroRd32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000	AcroRd32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	AcroRd32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	AcroRd32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\Sort = 000000000000000000000000000000000200000030f125b7ef471a10a5f102608c9eebac0a0000000100000030f125b7ef471a10a5f102608c9eebac0e000000ffffffff	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_Classes\Local Settings	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	splwow64.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}"	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}	AcroRd32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	AcroRd32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlgLegacy\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}"	AcroRd32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlgLegacy\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}"	AcroRd32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\Mode = "4"	AcroRd32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\LogicalViewMode = "1"	AcroRd32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\FFlags = "1"	AcroRd32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}"	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	AcroRd32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	splwow64.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0"	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	AcroRd32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy	AcroRd32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\FFlags = "1092616257"	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_Classes\Local Settings	AcroRd32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	AcroRd32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	AcroRd32.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlgLegacy	AcroRd32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlgLegacy\TV_TopViewVersion = "0"	AcroRd32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlgLegacy\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\IconSize = "16"	AcroRd32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	splwow64.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1584	AcroRd32.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
1584	AcroRd32.exe
1584	AcroRd32.exe
1584	AcroRd32.exe
1584	AcroRd32.exe
1584	AcroRd32.exe
1584	AcroRd32.exe
1584	AcroRd32.exe
1584	AcroRd32.exe
2824	splwow64.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1584 wrote to memory of 2824	1584	AcroRd32.exe	31
PID 1584 wrote to memory of 2824	1584	AcroRd32.exe	31
PID 1584 wrote to memory of 2824	1584	AcroRd32.exe	31
PID 1584 wrote to memory of 2824	1584	AcroRd32.exe	31

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\4dc9b0c20ea61d91d6a1b5bdce76fb5365de0762efb8f6c2925113c6a8950cae.pdf"
1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1584
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:2824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
2c455386eba139def58917a950624647

SHA1
9a6db39ef8f836e6a953d4907369c1f55401ea0b

SHA256
b4cb1cfb09be9f4bc44b8f4e44543bdfc09cbed901e16a5abeb09095dd9cbcb1

SHA512
c6e24f048c9077bfea3faca11591d183462982468bb387c285b2dde5510f53493e37fa79d9188a7f5d7895b50573677ae48fa520c95abfcff724b4a89b56d97f

Download Submit
memory/1584-17-0x0000000000E80000-0x0000000000E82000-memory.dmp

Filesize
8KB

Download