f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d

General

Target

f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d.exe
Size

369KB
MD5

d86ef322a661d37130f5a4d0effd03f3
SHA1

f75cfb7790bb6d554fdf436ac941fb786a78082d
SHA256

f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d
SHA512

f86724453a3680a44523914609d114cf8fb7b1475ac3e00e465034f3e12a230e7c81f9d90854475bbeeedb0dd2fc0af9f00732edb9f0789c0b3a827b03b20dab
SSDEEP

6144:J9PpMQZm7dznwijvPEaabsuI1FKiswVO2yqrBncky:JPMQZm7dznwijvPEaac1FKJx2JSky

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

rundll32.exe

pid process

4720 rundll32.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

5008 netsh.exe

pid	process
4720	rundll32.exe

pid	process
5008	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d.exe

Drops startup file 2 IoCs

Processes:

rundll32.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0ca9c409cae049493b77941d19805dd5.exe	rundll32.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0ca9c409cae049493b77941d19805dd5.exe	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0ca9c409cae049493b77941d19805dd5 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\rundll32.exe\" .."	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0ca9c409cae049493b77941d19805dd5 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\rundll32.exe\" .."	rundll32.exe

Drops file in Windows directory 1 IoCs

Processes:

dw20.exe

description ioc process

File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp dw20.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

dw20.exe

description	pid	process
Token: SeRestorePrivilege	4400	dw20.exe
Token: SeBackupPrivilege	4400	dw20.exe
Token: SeBackupPrivilege	4400	dw20.exe
Token: SeBackupPrivilege	4400	dw20.exe
Token: SeBackupPrivilege	4400	dw20.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d.exerundll32.exe

description	pid	process	target process
PID 5100 wrote to memory of 4720	5100	f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d.exe	rundll32.exe
PID 5100 wrote to memory of 4720	5100	f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d.exe	rundll32.exe
PID 5100 wrote to memory of 4720	5100	f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d.exe	rundll32.exe
PID 4720 wrote to memory of 5008	4720	rundll32.exe	netsh.exe
PID 4720 wrote to memory of 5008	4720	rundll32.exe	netsh.exe
PID 4720 wrote to memory of 5008	4720	rundll32.exe	netsh.exe
PID 4720 wrote to memory of 4400	4720	rundll32.exe	dw20.exe
PID 4720 wrote to memory of 4400	4720	rundll32.exe	dw20.exe
PID 4720 wrote to memory of 4400	4720	rundll32.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d.exe
"C:\Users\Admin\AppData\Local\Temp\f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5100

C:\Users\Admin\AppData\Local\Temp\rundll32.exe
"C:\Users\Admin\AppData\Local\Temp\rundll32.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4720

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\rundll32.exe" "rundll32.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:5008

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 1052
3⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:4400

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\rundll32.exe
Filesize
369KB

MD5
d86ef322a661d37130f5a4d0effd03f3

SHA1
f75cfb7790bb6d554fdf436ac941fb786a78082d

SHA256
f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d

SHA512
f86724453a3680a44523914609d114cf8fb7b1475ac3e00e465034f3e12a230e7c81f9d90854475bbeeedb0dd2fc0af9f00732edb9f0789c0b3a827b03b20dab

Download Submit
C:\Users\Admin\AppData\Local\Temp\rundll32.exe
Filesize
369KB

MD5
d86ef322a661d37130f5a4d0effd03f3

SHA1
f75cfb7790bb6d554fdf436ac941fb786a78082d

SHA256
f7f53052b36f373a7650e9e1ac8a29ed38ac614cc24d6b7b5fb27d3da646570d

SHA512
f86724453a3680a44523914609d114cf8fb7b1475ac3e00e465034f3e12a230e7c81f9d90854475bbeeedb0dd2fc0af9f00732edb9f0789c0b3a827b03b20dab

Download Submit
memory/4400-140-0x0000000000000000-mapping.dmp

Download
memory/4720-134-0x0000000000000000-mapping.dmp

Download
memory/4720-138-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/4720-141-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/5008-139-0x0000000000000000-mapping.dmp

Download
memory/5100-132-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/5100-133-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/5100-137-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads