051770ec73c6bb36b839af3fcdc2e28e14f8e8c24f77f89bdc034c19f05516ed

General

Target

Fattura.xlsb
Size

249KB
MD5

cfb756f36616e64f4da99dce90b25661
SHA1

00f48058178e506ad535f7f5c00b632c41ba4b8f
SHA256

051770ec73c6bb36b839af3fcdc2e28e14f8e8c24f77f89bdc034c19f05516ed
SHA512

fce764ec2d370a3709af0a2a8e1eca125e175e3c14849362a9d301b13f631a44d3dbb2289d1cb224f1357aeaa0da42b0d6c54c544d7c226ca6b9d6f5d6a0a9e6

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1356	784	cmd.exe	EXCEL.EXE

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

3656 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

216 3656 WerFault.exe rundll32.exe

pid	process
3656	rundll32.exe

pid	pid_target	process	target process
216	3656	WerFault.exe	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

784 EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exe

pid	process
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe
216	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 216 WerFault.exe
Token: SeBackupPrivilege 216 WerFault.exe
Token: SeDebugPrivilege 216 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	216	WerFault.exe
Token: SeBackupPrivilege	216	WerFault.exe
Token: SeDebugPrivilege	216	WerFault.exe

Suspicious use of SetWindowsHookEx 22 IoCs

Processes:

EXCEL.EXE

pid	process
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

EXCEL.EXEcmd.exerundll32.exe

description	pid	process	target process
PID 784 wrote to memory of 1356	784	EXCEL.EXE	cmd.exe
PID 784 wrote to memory of 1356	784	EXCEL.EXE	cmd.exe
PID 1356 wrote to memory of 2152	1356	cmd.exe	certutil.exe
PID 1356 wrote to memory of 2152	1356	cmd.exe	certutil.exe
PID 1356 wrote to memory of 3924	1356	cmd.exe	rundll32.exe
PID 1356 wrote to memory of 3924	1356	cmd.exe	rundll32.exe
PID 3924 wrote to memory of 3656	3924	rundll32.exe	rundll32.exe
PID 3924 wrote to memory of 3656	3924	rundll32.exe	rundll32.exe
PID 3924 wrote to memory of 3656	3924	rundll32.exe	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Fattura.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:784

C:\Windows\SYSTEM32\cmd.exe
cmd.exe /c certutil -decode %PUBLIC%\130486.dot %PUBLIC%\130486.pgj && rundll32 %PUBLIC%\130486.pgj,DF1
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1356

C:\Windows\system32\certutil.exe
certutil -decode C:\Users\Public\130486.dot C:\Users\Public\130486.pgj
3⤵
PID:2152

C:\Windows\system32\rundll32.exe
rundll32 C:\Users\Public\130486.pgj,DF1
3⤵
- Suspicious use of WriteProcessMemory
PID:3924

C:\Windows\SysWOW64\rundll32.exe
rundll32 C:\Users\Public\130486.pgj,DF1
4⤵
- Loads dropped DLL
PID:3656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3656 -s 812
5⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:216

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\130486.dot

MD5
6419bb0e1d573eb7f069459a6140b305

SHA1
304b3025cc04eec5bd5dbab2aea2d315425c7012

SHA256
ca7cad96c718e1fb8d38fcf1cb81a311cbcaa45991499aa6ddebb91ef862acc0

SHA512
6948043ae458463778896aff887ee405cfa1f243bae0d2d6a2f9f2c33f9c19f3aafa056a79088307f8023f220511fa2453860707b03166a0d0f1df88553e1397

Download Submit
C:\Users\Public\130486.pgj

MD5
8d7a888b48d11e2847363286357b1352

SHA1
d4fded711883ba0e7b801ceec2cf58920d294c32

SHA256
9759f0a782cc79fcf71a4af40bb321ab6cdd33fb043a406bbd502ccdede45902

SHA512
6eee5b900a2f492d55ef784433342b2ca18880e293cd6d5c0cad4773710d5a6dfc2eca5a61c3303b77ec9bd6563d8051da8f00bf1ce1f4b24f0fd4a43a84b9aa

Download Submit
\Users\Public\130486.pgj

MD5
8d7a888b48d11e2847363286357b1352

SHA1
d4fded711883ba0e7b801ceec2cf58920d294c32

SHA256
9759f0a782cc79fcf71a4af40bb321ab6cdd33fb043a406bbd502ccdede45902

SHA512
6eee5b900a2f492d55ef784433342b2ca18880e293cd6d5c0cad4773710d5a6dfc2eca5a61c3303b77ec9bd6563d8051da8f00bf1ce1f4b24f0fd4a43a84b9aa

Download Submit
memory/784-118-0x00007FFDD78A0000-0x00007FFDD78B0000-memory.dmp

Filesize
64KB

Download
memory/784-114-0x00007FF708B70000-0x00007FF70C126000-memory.dmp

Filesize
53.7MB

Download
memory/784-121-0x00007FFDD78A0000-0x00007FFDD78B0000-memory.dmp

Filesize
64KB

Download
memory/784-122-0x00007FFDF79B0000-0x00007FFDF8A9E000-memory.dmp

Filesize
16.9MB

Download
memory/784-123-0x00000184789A0000-0x000001847A895000-memory.dmp

Filesize
31.0MB

Download
memory/784-117-0x00007FFDD78A0000-0x00007FFDD78B0000-memory.dmp

Filesize
64KB

Download
memory/784-116-0x00007FFDD78A0000-0x00007FFDD78B0000-memory.dmp

Filesize
64KB

Download
memory/784-115-0x00007FFDD78A0000-0x00007FFDD78B0000-memory.dmp

Filesize
64KB

Download
memory/1356-179-0x0000000000000000-mapping.dmp

Download
memory/2152-180-0x0000000000000000-mapping.dmp

Download
memory/3656-184-0x0000000000000000-mapping.dmp

Download
memory/3656-186-0x0000000002C00000-0x0000000002D4A000-memory.dmp

Filesize
1.3MB

Download
memory/3924-182-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads