32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f

General

Target

32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe
Size

521KB
MD5

a1b89dc6328584521be91c0ce72d3d87
SHA1

aab7aea67283b50c69e00c15db7ef922680b3d50
SHA256

32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f
SHA512

4a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56
SSDEEP

6144:zuRqBr74bS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9N:974QtqB5urTIoYWBQk1E+VF9mOx9Mi

Score

9^/10

Malware Config

Signatures

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Windows Update.exe	MailPassView
C:\Users\Admin\AppData\Roaming\Windows Update.exe	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Windows Update.exe	WebBrowserPassView
C:\Users\Admin\AppData\Roaming\Windows Update.exe	WebBrowserPassView

Nirsoft 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Windows Update.exe	Nirsoft
C:\Users\Admin\AppData\Roaming\Windows Update.exe	Nirsoft

Executes dropped EXE 1 IoCs

Processes:

Windows Update.exe

pid process

4156 Windows Update.exe

pid	process
4156	Windows Update.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:

32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.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 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	1136	dw20.exe
Token: SeBackupPrivilege	1136	dw20.exe
Token: SeBackupPrivilege	1136	dw20.exe
Token: SeBackupPrivilege	1136	dw20.exe
Token: SeBackupPrivilege	1136	dw20.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exeWindows Update.exe

description	pid	process	target process
PID 2168 wrote to memory of 4156	2168	32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe	Windows Update.exe
PID 2168 wrote to memory of 4156	2168	32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe	Windows Update.exe
PID 2168 wrote to memory of 4156	2168	32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe	Windows Update.exe
PID 4156 wrote to memory of 1136	4156	Windows Update.exe	dw20.exe
PID 4156 wrote to memory of 1136	4156	Windows Update.exe	dw20.exe
PID 4156 wrote to memory of 1136	4156	Windows Update.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe
"C:\Users\Admin\AppData\Local\Temp\32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2168

C:\Users\Admin\AppData\Roaming\Windows Update.exe
"C:\Users\Admin\AppData\Roaming\Windows Update.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4156

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 1104
3⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:1136

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Roaming\Windows Update.exe
Filesize
521KB

MD5
a1b89dc6328584521be91c0ce72d3d87

SHA1
aab7aea67283b50c69e00c15db7ef922680b3d50

SHA256
32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f

SHA512
4a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Update.exe
Filesize
521KB

MD5
a1b89dc6328584521be91c0ce72d3d87

SHA1
aab7aea67283b50c69e00c15db7ef922680b3d50

SHA256
32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f

SHA512
4a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56

Download Submit
memory/1136-138-0x0000000000000000-mapping.dmp

Download
memory/2168-132-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/2168-133-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/2168-137-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4156-134-0x0000000000000000-mapping.dmp

Download
memory/4156-139-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4156-140-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4156-141-0x00000000745F0000-0x0000000074BA1000-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