f3503b405c11f77d1629cc544e6d5b6cf779d078cebd809ac8d953570266a8c8

General

Target

f3503b405c11f77d1629cc544e6d5b6cf779d078cebd809ac8d953570266a8c8.xls
Size

159KB
MD5

bd18f00ec7680fb84b5cfb8ba24a80b5
SHA1

052c4381657148e687519d0aa3a75db60001f138
SHA256

f3503b405c11f77d1629cc544e6d5b6cf779d078cebd809ac8d953570266a8c8
SHA512

a2a9f17715aae26ea6637fc90dacbaf8336c5dc1781b8d632c467b33dd16a52e95911db2f95094920774ac4058892fdc2273920626010cbae826a2a0c8c79479
SSDEEP

3072:5ZTEEEd8rmjPOtyoVjDGL61EfDlaGGx+cL/IxApmoFSfcNeD4RT665ezcdAZABKj:I8rmjPOtyoVjDGL61EfDlavx+W/IxApx

Score

10^/10

defense_evasion discovery

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1044	2496	cmd.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2876	2496	cmd.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1040	2496	cmd.exe	29

Deletes itself 1 IoCs

pid	Process
2496	EXCEL.EXE

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\72967F00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2496	EXCEL.EXE

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2496	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2496	EXCEL.EXE
2496	EXCEL.EXE
2496	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 1044	2496	EXCEL.EXE	30
PID 2496 wrote to memory of 1044	2496	EXCEL.EXE	30
PID 2496 wrote to memory of 1044	2496	EXCEL.EXE	30
PID 2496 wrote to memory of 1044	2496	EXCEL.EXE	30
PID 2496 wrote to memory of 2876	2496	EXCEL.EXE	31
PID 2496 wrote to memory of 2876	2496	EXCEL.EXE	31
PID 2496 wrote to memory of 2876	2496	EXCEL.EXE	31
PID 2496 wrote to memory of 2876	2496	EXCEL.EXE	31
PID 2496 wrote to memory of 1040	2496	EXCEL.EXE	33
PID 2496 wrote to memory of 1040	2496	EXCEL.EXE	33
PID 2496 wrote to memory of 1040	2496	EXCEL.EXE	33
PID 2496 wrote to memory of 1040	2496	EXCEL.EXE	33
PID 1044 wrote to memory of 2224	1044	cmd.exe	36
PID 1044 wrote to memory of 2224	1044	cmd.exe	36
PID 1044 wrote to memory of 2224	1044	cmd.exe	36
PID 1044 wrote to memory of 2224	1044	cmd.exe	36

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2224	attrib.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\f3503b405c11f77d1629cc544e6d5b6cf779d078cebd809ac8d953570266a8c8.xls
1⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\SysWOW64\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
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1044
- - C:\Windows\SysWOW64\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2224
- C:\Windows\SysWOW64\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
  - System Location Discovery: System Language Discovery
  PID:2876
- C:\Windows\SysWOW64\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
  - System Location Discovery: System Language Discovery
  PID:1040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

1

T1564.001

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2496-1-0x000000007212D000-0x0000000072138000-memory.dmp

Filesize
44KB

Download
memory/2496-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2496-2-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-3-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-53-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-7-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-8-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-77-0x0000000006380000-0x0000000006480000-memory.dmp

Filesize
1024KB

Download
memory/2496-100-0x0000000006380000-0x0000000006480000-memory.dmp

Filesize
1024KB

Download
memory/2496-76-0x0000000006380000-0x0000000006480000-memory.dmp

Filesize
1024KB

Download
memory/2496-5-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-6-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-4-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-211-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-213-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-212-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-326-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-351-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-350-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-349-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-325-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-324-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-356-0x000000007212D000-0x0000000072138000-memory.dmp

Filesize
44KB

Download
memory/2496-357-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2496-358-0x0000000006380000-0x0000000006480000-memory.dmp

Filesize
1024KB

Download
memory/2496-359-0x0000000006380000-0x0000000006480000-memory.dmp

Filesize
1024KB

Download
memory/2496-360-0x0000000006380000-0x0000000006480000-memory.dmp

Filesize
1024KB

Download

Analysis

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