Analysis
-
max time kernel
41s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12/11/2024, 13:58
Static task
static1
Behavioral task
behavioral1
Sample
4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe
Resource
win10v2004-20241007-en
General
-
Target
4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe
-
Size
47KB
-
MD5
9d8511bf4a25576e31f30c5fb38a3ab0
-
SHA1
a670610763f095968bfe3c6af62981315324e04e
-
SHA256
4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674d
-
SHA512
ae69acb32facb957eba6a53a55511a68d3a2521069c4dfd4f25754cfcb2358a30e752a96f61f295017c6fb8799792c7221d0ad749ab07f98615f64b1b36b68a5
-
SSDEEP
768:PTAm5hiTllzeF/AJOTmbWa8RYdiU3/7Shy5nv9/vJ7o9B/PxDc2Zpo/:PLIcNTcWATPuhI963hDR8
Malware Config
Signatures
-
Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "Explorer.exe C:\\Windows/system32/SVCH0ST.EXE" 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe -
Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "0" 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe -
Disables Task Manager via registry modification
-
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Agent = "C:\\Windows\\System32\\SVCH0ST.EXE" 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\SVCH0ST.EXE 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe File opened for modification C:\Windows\SysWOW64\SVCH0ST.EXE 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\system\wincirl.com 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe File opened for modification C:\Windows\system\wincirl.com 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Toolbar explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 explorer.exe -
Modifies registry class 38 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 56003100000000004759f14912004170704461746100400009000400efbe4759f1496c59496f2e0000006ee10100000001000000000000000000000000000000d06b11004100700070004400610074006100000016000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\NodeSlot = "1" explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\Shell\NavBar = 000000000000000000000000000000008b000000870000003153505305d5cdd59c2e1b10939708002b2cf9ae6b0000005a000000007b00360044003800420042003300440033002d0039004400380037002d0034004100390031002d0041004200350036002d003400460033003000430046004600450046004500390046007d005f0057006900640074006800000013000000cc0000000000000000000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0 = 50003100000000004759214c10004c6f63616c003c0009000400efbe4759f1496c59496f2e00000082e1010000000100000000000000000000000000000043b623014c006f00630061006c00000014000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 500031000000000047596950100041646d696e003c0009000400efbe4759f1496c59496f2e00000063e101000000010000000000000000000000000000006dc2b600410064006d0069006e00000014000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0 = 4e003100000000006c59496f100054656d7000003a0009000400efbe4759f1496c59496f2e00000083e101000000010000000000000000000000000000000bae4e00540065006d007000000014000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 78003100000000004759f1491100557365727300640009000400efbe874f77486c59496f2e000000c70500000000010000000000000000003a00000000009c1a220055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000 explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1504 explorer.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1624 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe 1624 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe 1504 explorer.exe 1504 explorer.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1624 wrote to memory of 2792 1624 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe 83 PID 1624 wrote to memory of 2792 1624 4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe"C:\Users\Admin\AppData\Local\Temp\4671a2b6c4d1b19595640721dc51e343c7b21db565c8714d082fccda773a674dN.exe"1⤵
- Modifies WinLogon for persistence
- Disables RegEdit via registry modification
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\Windows\Explorer.exeC:\Windows\Explorer.exe C:\Users\Admin\AppData\Local\Temp2⤵PID:2792
-
-
C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1504
-
C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1364
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
44KB
MD59172cdd2ca40a679f0bbe3a986fc0f48
SHA1441afa49e90e2761d276b5c4660b86d3295d4e41
SHA25643195fa80917695d49aa6ff28835f9982b8554af0a6947bfa8f9cef7620cccf0
SHA51239d43d4fd0dcaeadd66c404329ab7b8836090ab24d39ae264fb4d01d3017458a6e5727586c8ea6d71ddaa1fbf60eb7e796c4c6a47f8c910ed00d43a63de588e8