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 macro xlm

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	1184	4784	cmd.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2488	4784	cmd.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1244	4784	cmd.exe	82

Suspicious Office macro 1 IoCs

Office document equipped with 4.0 macros.

macro xlm

resource	yara_rule
behavioral6/files/0x0003000000022999-99.dat	office_xlm_macros

Deletes itself 1 IoCs

pid	Process
4784	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

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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\11.20计划分配\38A75E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4784	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE
4784	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 1244	4784	EXCEL.EXE	89
PID 4784 wrote to memory of 1244	4784	EXCEL.EXE	89
PID 4784 wrote to memory of 2488	4784	EXCEL.EXE	90
PID 4784 wrote to memory of 2488	4784	EXCEL.EXE	90
PID 4784 wrote to memory of 1184	4784	EXCEL.EXE	91
PID 4784 wrote to memory of 1184	4784	EXCEL.EXE	91
PID 1244 wrote to memory of 2260	1244	cmd.exe	95
PID 1244 wrote to memory of 2260	1244	cmd.exe	95

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2260	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\11.20计划分配\11.20锦源经营紧急计划1.xls"
1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4784
- 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:1244
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:2260
- 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:2488
- 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:1184

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\11.20计划分配\11.20锦源经营紧急计划1.xls

Filesize
123KB

MD5
8cd97a6ed1504eb2814378d50462e876

SHA1
bace021fa14719ca7bd22e7e42cd5b390963c8cb

SHA256
7c90fff3e04e00b23edd8ad121c65d0745b23025615fe8502149870269d0f07d

SHA512
3ebbddaa52f63ed735605f5bb2eafdca58f0d06f5230d8fedf4914adece0d111b717945f0bd9c64e5d7237617e7f8afbe8c02222c7e9fa6edcb8aa3b0ceb5f5d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
2KB

MD5
c28db0d943e3e5bcbdd6b62316700f30

SHA1
68011c43ec63ba10db809a0ad10cba736ac8bd34

SHA256
44cae805f2ddfcfe2a8b2e887912971e46e72a0bdf60b7fd613f6ece4c88672a

SHA512
8373675ca20057653496ae7feecc55a534629585f4e27a05595c11304008e3588823800f07d1d42b35d59e8fe095473ce36c5f5e8477396c023f5193efe59ef7

Download Submit
memory/4784-7-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-1-0x00007FFD836AD000-0x00007FFD836AE000-memory.dmp

Filesize
4KB

Download
memory/4784-4-0x00007FFD43690000-0x00007FFD436A0000-memory.dmp

Filesize
64KB

Download
memory/4784-5-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-29-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-9-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-8-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-51-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-6-0x00007FFD43690000-0x00007FFD436A0000-memory.dmp

Filesize
64KB

Download
memory/4784-52-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-12-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-11-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-14-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-16-0x00007FFD41290000-0x00007FFD412A0000-memory.dmp

Filesize
64KB

Download
memory/4784-15-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-17-0x00007FFD41290000-0x00007FFD412A0000-memory.dmp

Filesize
64KB

Download
memory/4784-10-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-2-0x00007FFD43690000-0x00007FFD436A0000-memory.dmp

Filesize
64KB

Download
memory/4784-13-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-53-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-54-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-55-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-50-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-56-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-68-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-3-0x00007FFD43690000-0x00007FFD436A0000-memory.dmp

Filesize
64KB

Download
memory/4784-101-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-103-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-102-0x00007FFD836AD000-0x00007FFD836AE000-memory.dmp

Filesize
4KB

Download
memory/4784-104-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-105-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-111-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-112-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/4784-0-0x00007FFD43690000-0x00007FFD436A0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads