7e28d57e91aa0641833ae349b3fe7f7744b7e9b44f9c4b4d07b4beb6efad15e0

General

Target

7e28d57e91aa0641833ae349b3fe7f7744b7e9b44f9c4b4d07b4beb6efad15e0.xls
Size

3.8MB
MD5

5034b373deecdf5033842f862fe84017
SHA1

1d6c5eca4e7c46c088469fb2467c156d1d4f01aa
SHA256

7e28d57e91aa0641833ae349b3fe7f7744b7e9b44f9c4b4d07b4beb6efad15e0
SHA512

b850379d21ec58b70e4a5d5d8f1efd3517b7a8692dbe6e3bc74e2109e6e7eea44ddf283424aa14a1215d972bfa1319f5d511bb16c3420f6f07640a64a8144425
SSDEEP

24576:Z/PeImtz+7l/XcHsIDUEEOCeZNIGb3tgjXBwcN62RViq5HSU6cHj0UiYiq15R4Zn:mztUL9/MEYl

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1908	4948	cmd.exe	80
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2108	4948	cmd.exe	80
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3024	4948	cmd.exe	80

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

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

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

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\2C575E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4948	EXCEL.EXE

Suspicious use of SetWindowsHookEx 18 IoCs

pid	Process
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE
4948	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 3660	4948	EXCEL.EXE	86
PID 4948 wrote to memory of 3660	4948	EXCEL.EXE	86
PID 4948 wrote to memory of 1908	4948	EXCEL.EXE	91
PID 4948 wrote to memory of 1908	4948	EXCEL.EXE	91
PID 4948 wrote to memory of 2108	4948	EXCEL.EXE	93
PID 4948 wrote to memory of 2108	4948	EXCEL.EXE	93
PID 4948 wrote to memory of 3024	4948	EXCEL.EXE	95
PID 4948 wrote to memory of 3024	4948	EXCEL.EXE	95
PID 1908 wrote to memory of 2008	1908	cmd.exe	97
PID 1908 wrote to memory of 2008	1908	cmd.exe	97

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2008	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\7e28d57e91aa0641833ae349b3fe7f7744b7e9b44f9c4b4d07b4beb6efad15e0.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:4948
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:3660
- 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:1908
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:2008
- 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:2108
- 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:3024

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:4916

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/1908-140-0x0000000000000000-mapping.dmp

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memory/2008-144-0x0000000000000000-mapping.dmp

Download
memory/2108-141-0x0000000000000000-mapping.dmp

Download
memory/3024-142-0x0000000000000000-mapping.dmp

Download
memory/3660-139-0x0000000000000000-mapping.dmp

Download
memory/4948-137-0x00007FF7C4B50000-0x00007FF7C4B60000-memory.dmp

Filesize
64KB

Download
memory/4948-138-0x00007FF7C4B50000-0x00007FF7C4B60000-memory.dmp

Filesize
64KB

Download
memory/4948-136-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/4948-143-0x0000025865584000-0x0000025865586000-memory.dmp

Filesize
8KB

Download
memory/4948-135-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/4948-133-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/4948-134-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/4948-132-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/4948-145-0x0000025868CF2000-0x0000025868CF4000-memory.dmp

Filesize
8KB

Download
memory/4948-147-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/4948-148-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/4948-149-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/4948-150-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads