2a12dafeac627315df7af0963bc91472a0559e48a0b076eb6b6fc8b2516c6fbd

General

Target

2a12dafeac627315df7af0963bc91472a0559e48a0b076eb6b6fc8b2516c6fbd.xls
Size

381KB
MD5

72f43680dad39c93a286c6242fb7777c
SHA1

e8b25a926181ecd1b25a8455e385299bd010ac4b
SHA256

2a12dafeac627315df7af0963bc91472a0559e48a0b076eb6b6fc8b2516c6fbd
SHA512

1b2db1fd1aa60829d36142855beb10c18aeb10bb388ca03293abeac1be5dd94bc177ffd225cce0f47198b0f3b4c26533a1725a0d58c31c1a6deae86e69c15c73
SSDEEP

3072:hW0t/romy0GlDmCe5n+wykjOYUg95JNMHbvVnzbLsUTHV8xq2aZn4tcFK8paEWVX:nncYx5JNMHbvVnzEBxx2+8wDh

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

cmd.execmd.execmd.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	204	4972	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	216	4972	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4796	4972	cmd.exe	EXCEL.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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\41E65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4972 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\41E65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4972 wrote to memory of 204	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 204	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 216	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 216	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 4796	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 4796	4972	EXCEL.EXE	cmd.exe
PID 204 wrote to memory of 2012	204	cmd.exe	attrib.exe
PID 204 wrote to memory of 2012	204	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2012 attrib.exe

pid	process
2012	attrib.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\2a12dafeac627315df7af0963bc91472a0559e48a0b076eb6b6fc8b2516c6fbd.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4972

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:204

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2012

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:216

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:4796

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

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

memory/204-139-0x0000000000000000-mapping.dmp

Download
memory/216-140-0x0000000000000000-mapping.dmp

Download
memory/2012-143-0x0000000000000000-mapping.dmp

Download
memory/4796-141-0x0000000000000000-mapping.dmp

Download
memory/4972-136-0x00007FF927810000-0x00007FF927820000-memory.dmp

Filesize
64KB

Download
memory/4972-133-0x00007FF927810000-0x00007FF927820000-memory.dmp

Filesize
64KB

Download
memory/4972-138-0x00007FF925010000-0x00007FF925020000-memory.dmp

Filesize
64KB

Download
memory/4972-132-0x00007FF927810000-0x00007FF927820000-memory.dmp

Filesize
64KB

Download
memory/4972-135-0x00007FF927810000-0x00007FF927820000-memory.dmp

Filesize
64KB

Download
memory/4972-134-0x00007FF927810000-0x00007FF927820000-memory.dmp

Filesize
64KB

Download
memory/4972-142-0x0000015FF9F65000-0x0000015FF9F67000-memory.dmp

Filesize
8KB

Download
memory/4972-137-0x00007FF925010000-0x00007FF925020000-memory.dmp

Filesize
64KB

Download
memory/4972-144-0x0000015FF9F64000-0x0000015FF9F66000-memory.dmp

Filesize
8KB

Download
memory/4972-145-0x0000015FF9F65000-0x0000015FF9F67000-memory.dmp

Filesize
8KB

Download
memory/4972-146-0x0000015FF9F64000-0x0000015FF9F66000-memory.dmp

Filesize
8KB

Download
memory/4972-148-0x00007FF927810000-0x00007FF927820000-memory.dmp

Filesize
64KB

Download
memory/4972-149-0x00007FF927810000-0x00007FF927820000-memory.dmp

Filesize
64KB

Download
memory/4972-150-0x00007FF927810000-0x00007FF927820000-memory.dmp

Filesize
64KB

Download
memory/4972-151-0x00007FF927810000-0x00007FF927820000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads