187441262398983e2bf4672e06325e247537e083f9dcf384762858307cc5c8df

Resubmissions

04-12-2020 23:26

201204-em2p576lje 4

04-12-2020 23:21

201204-djhepqlp7s 7

04-12-2020 23:16

201204-np79pl4zy2 7

Analysis

max time kernel
106s
max time network
134s
platform
windows10_x64
resource
win10v20201028
submitted
04-12-2020 23:21

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Report Analysis Logs

General

Target

view page source hybrid.rtf
Size

46KB
MD5

4dfa2438ea66e13ccd84afca3c410be4
SHA1

9e131830c70fe743b0625637fa407cad525811f5
SHA256

187441262398983e2bf4672e06325e247537e083f9dcf384762858307cc5c8df
SHA512

218ce0bdbf2011864ea3d7b6b733ceadb8c4f93c180fca371c0fb79b8514843dff30c54b483d17e5b9c3743f347e5761ee3fae3d1c8a0d1e5b18cc76fcff277c

Score

1^/10

Malware Config

Signatures

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

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE

Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

580 WINWORD.EXE
580 WINWORD.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

580 WINWORD.EXE
580 WINWORD.EXE
580 WINWORD.EXE
580 WINWORD.EXE
580 WINWORD.EXE
580 WINWORD.EXE
580 WINWORD.EXE
580 WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000_Classes\Local Settings	explorer.exe

pid	process
580	WINWORD.EXE
580	WINWORD.EXE

pid	process
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE
580	WINWORD.EXE

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\view page source hybrid.rtf" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:580

C:\Windows\explorer.exe
"C:\Windows\explorer.exe" shell:::{52205fd8-5dfb-447d-801a-d0b52f2e83e1}
1⤵
PID:3840

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
PID:3028

\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s fdPHost
1⤵
PID:2368

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/580-2-0x000001132A920000-0x000001132AF57000-memory.dmp

Filesize
6.2MB

Download
memory/580-3-0x00007FF91CAE0000-0x00007FF91F603000-memory.dmp

Filesize
43.1MB

Download
memory/580-4-0x00007FF91CAE0000-0x00007FF91F603000-memory.dmp

Filesize
43.1MB

Download
memory/580-5-0x00007FF91CAE0000-0x00007FF91F603000-memory.dmp

Filesize
43.1MB

Download