84c877324d21c0bea9ebe23c2172733fc6d6966f65c56b07885bdfef99c9d502

General

Target

11.20计划分配/11.20锦源经营紧急计划1.xls
Size

111KB
MD5

76f97f2d0f40e760f007611a849e2302
SHA1

710f270703a04f259a87746d3b46cb39be54d9f4
SHA256

5da678b4d80ff78fb8617b4a72ac9ae5aa5398a11f2a6321acd9279cb826e0b3
SHA512

a47f124d1eb68ed7f83451407f10d64d93ec4862a8c102eee78ef2b2b4244b6cfaab7f42573c454a63f407c64c34ff825350d71605f5af07a45e9c67c4608157
SSDEEP

3072:Km1gxv7yZmspH7+cclKisQ6NqTBun5o6WVbrzQ7MTkP7foJtXwf7ektW:B1gxv7yZmspH7+cclKisQ6NqTBun5oPs

Score

10^/10

defense_evasion discovery

Malware Config

Signatures

Process spawned unexpected child process 4 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	2280	2340	cmd.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1036	2340	cmd.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1516	2340	cmd.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1760	2340	wscript.exe	29

Deletes itself 1 IoCs

pid	Process
2340	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 6 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	EXCEL.EXE
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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.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\11.20计划分配\66867F00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2340	EXCEL.EXE

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2340	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2340	EXCEL.EXE
2340	EXCEL.EXE
2340	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 2280	2340	EXCEL.EXE	30
PID 2340 wrote to memory of 2280	2340	EXCEL.EXE	30
PID 2340 wrote to memory of 2280	2340	EXCEL.EXE	30
PID 2340 wrote to memory of 2280	2340	EXCEL.EXE	30
PID 2340 wrote to memory of 1036	2340	EXCEL.EXE	31
PID 2340 wrote to memory of 1036	2340	EXCEL.EXE	31
PID 2340 wrote to memory of 1036	2340	EXCEL.EXE	31
PID 2340 wrote to memory of 1036	2340	EXCEL.EXE	31
PID 2340 wrote to memory of 1516	2340	EXCEL.EXE	33
PID 2340 wrote to memory of 1516	2340	EXCEL.EXE	33
PID 2340 wrote to memory of 1516	2340	EXCEL.EXE	33
PID 2340 wrote to memory of 1516	2340	EXCEL.EXE	33
PID 2280 wrote to memory of 2216	2280	cmd.exe	36
PID 2280 wrote to memory of 2216	2280	cmd.exe	36
PID 2280 wrote to memory of 2216	2280	cmd.exe	36
PID 2280 wrote to memory of 2216	2280	cmd.exe	36
PID 2340 wrote to memory of 1760	2340	EXCEL.EXE	37
PID 2340 wrote to memory of 1760	2340	EXCEL.EXE	37
PID 2340 wrote to memory of 1760	2340	EXCEL.EXE	37
PID 2340 wrote to memory of 1760	2340	EXCEL.EXE	37

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2216	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\11.20计划分配\11.20锦源经营紧急计划1.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:2340
- 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:2280
- - 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:2216
- 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:1036
- 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:1516
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\System32\wscript.exe" E:\KK\11_20锦源经营紧急计划1_Search.vbs
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:1760

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/2340-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2340-1-0x0000000071D2D000-0x0000000071D38000-memory.dmp

Filesize
44KB

Download
memory/2340-5-0x00000000062D0000-0x00000000063D0000-memory.dmp

Filesize
1024KB

Download
memory/2340-31-0x00000000062D0000-0x00000000063D0000-memory.dmp

Filesize
1024KB

Download
memory/2340-77-0x00000000062D0000-0x00000000063D0000-memory.dmp

Filesize
1024KB

Download
memory/2340-100-0x00000000062D0000-0x00000000063D0000-memory.dmp

Filesize
1024KB

Download
memory/2340-76-0x00000000062D0000-0x00000000063D0000-memory.dmp

Filesize
1024KB

Download
memory/2340-375-0x0000000071D2D000-0x0000000071D38000-memory.dmp

Filesize
44KB

Download
memory/2340-376-0x00000000062D0000-0x00000000063D0000-memory.dmp

Filesize
1024KB

Download
memory/2340-377-0x00000000062D0000-0x00000000063D0000-memory.dmp

Filesize
1024KB

Download
memory/2340-378-0x00000000062D0000-0x00000000063D0000-memory.dmp

Filesize
1024KB

Download

Analysis

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