bbd550a356ad847fbec4080976e7f7d72b3d431d923df772b65880b7a5cc7254

Analysis

max time kernel
144s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
22-03-2023 19:07

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General

Target

50793b3b016fe3d7042a286e70c8c2db.exe
Size

880KB
MD5

50793b3b016fe3d7042a286e70c8c2db
SHA1

636db5add1b385fdbe8f01a097a39aa64591fc8e
SHA256

bbd550a356ad847fbec4080976e7f7d72b3d431d923df772b65880b7a5cc7254
SHA512

b2035b2fcd0eb4b3874b2a0cf14ce25b17509129fe88924f1884a70e78b51a78922d6299e728b113754cbb1b21f02565c4367644d99712f93f052134a9ac91b3
SSDEEP

6144:LQuiA1RTz/cYja2ieb5YbF5R+Jn8xH97r7FU1d43wUmDm:nz/9ja2ieFYp5R+I7uY

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.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5004	4848	rundll32.exe	53

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	50793b3b016fe3d7042a286e70c8c2db.exe

Loads dropped DLL 1 IoCs

pid	Process
4072	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

pid	pid_target	Process	procid_target
3708	4072	WerFault.exe	89

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	19	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1176	50793b3b016fe3d7042a286e70c8c2db.exe
1176	50793b3b016fe3d7042a286e70c8c2db.exe
2380	50793b3b016fe3d7042a286e70c8c2db.exe
2380	50793b3b016fe3d7042a286e70c8c2db.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 2380	1176	50793b3b016fe3d7042a286e70c8c2db.exe	85
PID 1176 wrote to memory of 2380	1176	50793b3b016fe3d7042a286e70c8c2db.exe	85
PID 1176 wrote to memory of 2380	1176	50793b3b016fe3d7042a286e70c8c2db.exe	85
PID 5004 wrote to memory of 4072	5004	rundll32.exe	89
PID 5004 wrote to memory of 4072	5004	rundll32.exe	89
PID 5004 wrote to memory of 4072	5004	rundll32.exe	89

C:\Users\Admin\AppData\Local\Temp\50793b3b016fe3d7042a286e70c8c2db.exe
"C:\Users\Admin\AppData\Local\Temp\50793b3b016fe3d7042a286e70c8c2db.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Users\Admin\AppData\Local\Temp\50793b3b016fe3d7042a286e70c8c2db.exe
  "C:\Users\Admin\AppData\Local\Temp\50793b3b016fe3d7042a286e70c8c2db.exe" -h
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2380

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:5004
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
  2⤵
  - Loads dropped DLL
  PID:4072
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4072 -s 600
    3⤵
    - Program crash
    PID:3708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4072 -ip 4072
1⤵
PID:2072

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

C:\Users\Admin\AppData\Local\Temp\db.dat

Filesize
557KB

MD5
12a2ea9884738cc71cd622a9c86bc041

SHA1
e0dbb25a0c54b69c2b35e05ba58f40b053463f4b

SHA256
1181ed73b4f90cb0fc4c787d4791adf14ac25bbb02460a78ab0959bd2dbf5aaf

SHA512
d0abf082376c90bdaff759b7e7502c0791de17ca554e695141506e6f6f0fe29aac9d71e817d4a601e2b2db47c88e03203d54f59cdd29c0f7b1e161c5a063c15b

Download Submit
C:\Users\Admin\AppData\Local\Temp\db.dll

Filesize
52KB

MD5
1b20e998d058e813dfc515867d31124f

SHA1
c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

SHA256
24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

SHA512
79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

Download Submit
C:\Users\Admin\AppData\Local\Temp\db.dll

Filesize
52KB

MD5
1b20e998d058e813dfc515867d31124f

SHA1
c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

SHA256
24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

SHA512
79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

Download Submit