8a4359a260e1aed19c98ad412cbd082575376099a401236c2281457287fc41ae

General

Target

xlsKami_infect.xls
Size

19KB
MD5

cdeb779d95c6f19cf390d4dbadf12297
SHA1

dd10513aa939df318e5bc20bf8a8858384c6fd39
SHA256

8a4359a260e1aed19c98ad412cbd082575376099a401236c2281457287fc41ae
SHA512

feec736a9ebd84550a51842511d18434c76d7bd7f12571ef34221a02d17b9bd3238727476c9430cb7b3def56d7198e7660e8e1f751cf7f35701dd97562ec4f44
SSDEEP

384:mf5H+k3hOdsylLOlyvxopeiJTNhZFGzETqcL44KgltBAWs1iSo7KlIl9:wh+k3hOdsylKlgxopeiBNhZFGzE+cL4w

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://github.com/cyberisltd/NcatPortable/raw/master/ncat.exe

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	4684	2708	WerFault.exe	81

Process spawned suspicious child process 1 IoCs

This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	328	2708	DW20.EXE	81

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4684	2708	WerFault.exe	81

Checks processor information in registry 2 TTPs 6 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dwwin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dwwin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dwwin.exe

Enumerates system info in registry 2 TTPs 5 IoCs

Query Registry

T1012

System Information Discovery

T1082

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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dwwin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dwwin.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2708	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 328	2708	EXCEL.EXE	87
PID 2708 wrote to memory of 328	2708	EXCEL.EXE	87
PID 328 wrote to memory of 936	328	DW20.EXE	88
PID 328 wrote to memory of 936	328	DW20.EXE	88

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\xlsKami_infect.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE
  "C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 4340
  2⤵
  - Process spawned suspicious child process
  - Suspicious use of WriteProcessMemory
  PID:328
- - C:\Windows\system32\dwwin.exe
    C:\Windows\system32\dwwin.exe -x -s 4340
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:936
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2708 -s 4376
  2⤵
  - Process spawned unexpected child process
  - Program crash
  PID:4684

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 468 -p 2708 -ip 2708
1⤵
PID:1840

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

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Downloads

memory/328-149-0x00007FFA96690000-0x00007FFA966A0000-memory.dmp

Filesize
64KB

Download
memory/328-148-0x00007FFA96690000-0x00007FFA966A0000-memory.dmp

Filesize
64KB

Download
memory/328-147-0x00007FFA96690000-0x00007FFA966A0000-memory.dmp

Filesize
64KB

Download
memory/328-146-0x00007FFA96690000-0x00007FFA966A0000-memory.dmp

Filesize
64KB

Download
memory/2708-135-0x00007FFA96690000-0x00007FFA966A0000-memory.dmp

Filesize
64KB

Download
memory/2708-138-0x00007FFA93F80000-0x00007FFA93F90000-memory.dmp

Filesize
64KB

Download
memory/2708-137-0x00007FFA93F80000-0x00007FFA93F90000-memory.dmp

Filesize
64KB

Download
memory/2708-136-0x00007FFA96690000-0x00007FFA966A0000-memory.dmp

Filesize
64KB

Download
memory/2708-132-0x00007FFA96690000-0x00007FFA966A0000-memory.dmp

Filesize
64KB

Download
memory/2708-134-0x00007FFA96690000-0x00007FFA966A0000-memory.dmp

Filesize
64KB

Download
memory/2708-133-0x00007FFA96690000-0x00007FFA966A0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads