120edd37142c24d17472137c608220220a4efb595d42a991efd498ac30339b4e

Resubmissions

24-11-2022 08:19

221124-j741laba85 4

24-11-2022 07:16

221124-h33rasgc78 4

Analysis

max time kernel
157s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 07:16

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Report Analysis Logs

General

Target

Server.exe
Size

150KB
MD5

0f367fce0c77e594ec09f105ded2503a
SHA1

fba1dd99300e2c9d574a4afa976590b6da35ee50
SHA256

120edd37142c24d17472137c608220220a4efb595d42a991efd498ac30339b4e
SHA512

a8a6d855805f9e223478191577bbe981d09b988fdb20c64fa62431587b122424b2d868f82feaeb3e5be6e4aa49ccc3cf842c592ead2d8c645f497f1b69764f3f
SSDEEP

3072:+FhkwDd+B2lf1oJWT9RMkjWyqQuRN4GepKsqL4:+Pk0d+Bo6JWT93q9/4

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

Processes:

dw20.exe

description ioc process

File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp dw20.exe

description	ioc	process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe

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:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

dw20.exe

description	pid	process
Token: SeRestorePrivilege	4652	dw20.exe
Token: SeBackupPrivilege	4652	dw20.exe
Token: SeBackupPrivilege	4652	dw20.exe
Token: SeBackupPrivilege	4652	dw20.exe
Token: SeBackupPrivilege	4652	dw20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

WINWORD.EXE

pid process

4320 WINWORD.EXE

pid	process
4320	WINWORD.EXE

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Server.exe

description	pid	process	target process
PID 5076 wrote to memory of 4652	5076	Server.exe	dw20.exe
PID 5076 wrote to memory of 4652	5076	Server.exe	dw20.exe
PID 5076 wrote to memory of 4652	5076	Server.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5076

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 864
2⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:4652

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\Desktop\ResumeExpand.docm" /o ""
1⤵
- Suspicious use of SetWindowsHookEx
PID:4320

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4320-135-0x00007FFB88250000-0x00007FFB88260000-memory.dmp

Filesize
64KB

Download
memory/4320-136-0x00007FFB88250000-0x00007FFB88260000-memory.dmp

Filesize
64KB

Download
memory/4320-137-0x00007FFB88250000-0x00007FFB88260000-memory.dmp

Filesize
64KB

Download
memory/4320-138-0x00007FFB88250000-0x00007FFB88260000-memory.dmp

Filesize
64KB

Download
memory/4320-139-0x00007FFB88250000-0x00007FFB88260000-memory.dmp

Filesize
64KB

Download
memory/4320-140-0x00007FFB85B30000-0x00007FFB85B40000-memory.dmp

Filesize
64KB

Download
memory/4652-133-0x0000000000000000-mapping.dmp

Download
memory/5076-132-0x0000000074BA0000-0x0000000075151000-memory.dmp

Filesize
5.7MB

Download
memory/5076-134-0x0000000074BA0000-0x0000000075151000-memory.dmp

Filesize
5.7MB

Download