846ab02a830b8d3190bca7589fa965705922e75fe2b2bf2416158881b69e7933

Analysis

max time kernel
39s
max time network
16s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 09:53

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General

Target

Hash Calculator.exe
Size

350KB
MD5

7649338aaef74af8f47bc8d84f1554b4
SHA1

63c9925546fbff2ef768a18292f54b1b70770a80
SHA256

a1e6bfc602e54d83ee31f018bf113490fea1f8b9816ee381842023a08c519bc1
SHA512

b99d7361933e98e65e302ba274f587bc05d3d49621a7b3cf1f118c819d46bd108e86d56d3fac6dd4d9c2842b51c7cf20cf790460e9fa41c5179167a8445ffadd
SSDEEP

6144:rwKB6LB7mumPHfBGXDRIq6rq3LiLP7mumPHfBGnDRNq6rq4L:rBBII

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\installer\{ac76ba86-7ad7-1033-7b44-a90000000001}\pdffile_8.ico	Hash Calculator.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 31 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000	Hash Calculator.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0"	Hash Calculator.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	Hash Calculator.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	Hash Calculator.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\IconSize = "16"	Hash Calculator.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\Sort = 000000000000000000000000000000000200000030f125b7ef471a10a5f102608c9eebac0a0000000100000030f125b7ef471a10a5f102608c9eebac0e000000ffffffff	Hash Calculator.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\FFlags = "1"	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	Hash Calculator.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	Hash Calculator.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_Classes\Local Settings	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders	Hash Calculator.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\LogicalViewMode = "1"	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}	Hash Calculator.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\Mode = "4"	Hash Calculator.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\FFlags = "1092616257"	Hash Calculator.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	Hash Calculator.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	Hash Calculator.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	Hash Calculator.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}"	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}	Hash Calculator.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}"	Hash Calculator.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg	Hash Calculator.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	Hash Calculator.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	Hash Calculator.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2444	Hash Calculator.exe
2444	Hash Calculator.exe
2444	Hash Calculator.exe
2444	Hash Calculator.exe
2444	Hash Calculator.exe

C:\Users\Admin\AppData\Local\Temp\Hash Calculator.exe
"C:\Users\Admin\AppData\Local\Temp\Hash Calculator.exe"
1⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:2444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2444-0-0x0000000001280000-0x00000000012DE000-memory.dmp

Filesize
376KB

Download
memory/2444-1-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2444-2-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/2444-3-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/2444-4-0x00000000087F0000-0x00000000087F1000-memory.dmp

Filesize
4KB

Download
memory/2444-5-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2444-6-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/2444-7-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/2444-8-0x00000000087F0000-0x00000000087F1000-memory.dmp

Filesize
4KB

Download