5b0708551a5c3cf9932c8aea5e890e3f2abe7b7b5911cefebc6155d20692e365

Analysis

max time kernel
81s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
22-02-2023 11:00

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General

Target

dc719929115e50ed4383bcc7f7182be3.exe
Size

312KB
MD5

dc719929115e50ed4383bcc7f7182be3
SHA1

562e69bdf814c156872fd6ad6a3d0116b0304516
SHA256

5b0708551a5c3cf9932c8aea5e890e3f2abe7b7b5911cefebc6155d20692e365
SHA512

34b1dda47ff7a20052f582f4874dc35f4e768558baf8727419d5f91ec2f8c6e28d2a6bc0253975e6bac5d45edfa1edd09aabc5339d2caade73418b73096b9404
SSDEEP

6144:E4PWLN3m+XeeqeO0UQeQ8KbLVHqAQg5jIQspEPn:6aeqeO0UQB8KFHqAYpEPn

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exe

description pid pid_target process target process

Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4780 3972 rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4780	3972	rundll32.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:

dc719929115e50ed4383bcc7f7182be3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	dc719929115e50ed4383bcc7f7182be3.exe

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4868 rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

828 4868 WerFault.exe rundll32.exe
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 4 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
4868	rundll32.exe

pid	pid_target	process	target process
828	4868	WerFault.exe	rundll32.exe

description	flow	ioc
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

dc719929115e50ed4383bcc7f7182be3.exedc719929115e50ed4383bcc7f7182be3.exe

pid	process
340	dc719929115e50ed4383bcc7f7182be3.exe
340	dc719929115e50ed4383bcc7f7182be3.exe
4896	dc719929115e50ed4383bcc7f7182be3.exe
4896	dc719929115e50ed4383bcc7f7182be3.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

dc719929115e50ed4383bcc7f7182be3.exerundll32.exe

description	pid	process	target process
PID 340 wrote to memory of 4896	340	dc719929115e50ed4383bcc7f7182be3.exe	dc719929115e50ed4383bcc7f7182be3.exe
PID 340 wrote to memory of 4896	340	dc719929115e50ed4383bcc7f7182be3.exe	dc719929115e50ed4383bcc7f7182be3.exe
PID 340 wrote to memory of 4896	340	dc719929115e50ed4383bcc7f7182be3.exe	dc719929115e50ed4383bcc7f7182be3.exe
PID 4780 wrote to memory of 4868	4780	rundll32.exe	rundll32.exe
PID 4780 wrote to memory of 4868	4780	rundll32.exe	rundll32.exe
PID 4780 wrote to memory of 4868	4780	rundll32.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\dc719929115e50ed4383bcc7f7182be3.exe
"C:\Users\Admin\AppData\Local\Temp\dc719929115e50ed4383bcc7f7182be3.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:340

C:\Users\Admin\AppData\Local\Temp\dc719929115e50ed4383bcc7f7182be3.exe
"C:\Users\Admin\AppData\Local\Temp\dc719929115e50ed4383bcc7f7182be3.exe" -h
2⤵
- Suspicious use of SetWindowsHookEx
PID:4896

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4780

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
2⤵
- Loads dropped DLL
PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 604
3⤵
- Program crash
PID:828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4868 -ip 4868
1⤵
PID:1104

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

C:\Users\Admin\AppData\Local\Temp\db.dat
Filesize
557KB

MD5
76c3dbb1e9fea62090cdf53dadcbe28e

SHA1
d44b32d04adc810c6df258be85dc6b62bd48a307

SHA256
556fd54e5595d222cfa2bd353afa66d8d4d1fbb3003afed604672fceae991860

SHA512
de4ea57497cf26237430880742f59e8d2a0ac7e7a0b09ed7be590f36fbd08c9ced0ffe46eb69ec2215a9cff55720f24fffcae752cd282250b4da6b75a30b3a1b

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C:\Users\Admin\AppData\Local\Temp\db.dll
Filesize
52KB

MD5
1b20e998d058e813dfc515867d31124f

SHA1
c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

SHA256
24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

SHA512
79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

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C:\Users\Admin\AppData\Local\Temp\db.dll
Filesize
52KB

MD5
1b20e998d058e813dfc515867d31124f

SHA1
c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

SHA256
24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

SHA512
79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

Download Submit