d7b21d35c8b924b9b59fbb4cb104c3e386a2cd2aec9eb9d149fd6f9cac9a4672

Analysis

max time kernel
20s
max time network
598s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2024 14:39

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General

Target

b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe
Size

352KB
MD5

4f88b5e510ecbd0adefdfc87c552289c
SHA1

047ec67b8e3c001086284d7176b2d239db565fb5
SHA256

b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273
SHA512

75b86d6de4bec5285559f7e9a0dbf46df48dbdf78386023e5f8668a7814bc1db5322d8bf9d306cfd65175112b94366641d671175d59d3edacc3d2b2ba802f348
SSDEEP

6144:X9PrHO8306KFnBCzDIZXY3HJmui45mkA2/1:drHBpgkDuoEuXbJ

Score

9^/10

persistence ransomware

Malware Config

Signatures

Renames multiple (121) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe

Executes dropped EXE 1 IoCs

pid	Process
5080	dwa01.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\{67B97992-033F-589A-AA66-FFC16ECB2C0C} = "C:\\Users\\Admin\\AppData\\Roaming\\dwa01.exe"	b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\{67B97992-033F-589A-AA66-FFC16ECB2C0C} = "notepad.exe \"C:\\Users\\Admin\\RECOVER-FILES.HTML\""	dwa01.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe
5080	dwa01.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 5080	2212	b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe	52
PID 2212 wrote to memory of 5080	2212	b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe	52
PID 2212 wrote to memory of 5080	2212	b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe	52
PID 2212 wrote to memory of 5108	2212	b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe	51
PID 2212 wrote to memory of 5108	2212	b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe	51
PID 2212 wrote to memory of 5108	2212	b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe	51
PID 5080 wrote to memory of 2500	5080	dwa01.exe	76
PID 5080 wrote to memory of 2500	5080	dwa01.exe	76
PID 5080 wrote to memory of 2500	5080	dwa01.exe	76
PID 5080 wrote to memory of 1204	5080	dwa01.exe	75
PID 5080 wrote to memory of 1204	5080	dwa01.exe	75
PID 5080 wrote to memory of 1204	5080	dwa01.exe	75
PID 5080 wrote to memory of 4120	5080	dwa01.exe	74
PID 5080 wrote to memory of 4120	5080	dwa01.exe	74
PID 5080 wrote to memory of 4120	5080	dwa01.exe	74
PID 5080 wrote to memory of 3940	5080	dwa01.exe	115
PID 5080 wrote to memory of 3940	5080	dwa01.exe	115
PID 5080 wrote to memory of 3940	5080	dwa01.exe	115
PID 5080 wrote to memory of 5032	5080	dwa01.exe	114
PID 5080 wrote to memory of 5032	5080	dwa01.exe	114
PID 5080 wrote to memory of 5032	5080	dwa01.exe	114
PID 3940 wrote to memory of 2316	3940	cmd.exe	112
PID 3940 wrote to memory of 2316	3940	cmd.exe	112
PID 3940 wrote to memory of 2316	3940	cmd.exe	112

C:\Users\Admin\AppData\Local\Temp\b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe
"C:\Users\Admin\AppData\Local\Temp\b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\{4B358AAC-F1EC-7761-5161-8A86C913B261}.bat
  2⤵
  PID:5108
- C:\Users\Admin\AppData\Roaming\dwa01.exe
  "C:\Users\Admin\AppData\Roaming\dwa01.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:5080
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
    3⤵
    PID:4120
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c bcdedit /set {default} recoveryenabled No
    3⤵
    PID:1204
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c vssadmin Delete Shadows /All /Quiet
    3⤵
    PID:2500
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\{0ED698DB-1D55-5911-F968-0D297EB83161}.bat
    3⤵
    PID:5032
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c start /max notepad.exe "C:\Users\Admin\RECOVER-FILES.HTML"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3940

C:\Windows\SysWOW64\notepad.exe
notepad.exe "C:\Users\Admin\RECOVER-FILES.HTML"
1⤵
PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/2212-1-0x0000000003C00000-0x0000000003C01000-memory.dmp

Filesize
4KB

Download
memory/2212-2-0x0000000003C00000-0x0000000003C01000-memory.dmp

Filesize
4KB

Download
memory/2212-3-0x0000000003C00000-0x0000000003C01000-memory.dmp

Filesize
4KB

Download
memory/2212-0-0x00000000024F0000-0x0000000002559000-memory.dmp

Filesize
420KB

Download
memory/2212-4-0x00000000024F0000-0x0000000002559000-memory.dmp

Filesize
420KB

Download
memory/2212-7-0x0000000003C00000-0x0000000003C01000-memory.dmp

Filesize
4KB

Download
memory/2212-9-0x0000000003C00000-0x0000000003C01000-memory.dmp

Filesize
4KB

Download
memory/2212-10-0x0000000003C00000-0x0000000003C01000-memory.dmp

Filesize
4KB

Download
memory/2212-11-0x0000000003C00000-0x0000000003C01000-memory.dmp

Filesize
4KB

Download
memory/2212-12-0x0000000003C00000-0x0000000003D00000-memory.dmp

Filesize
1024KB

Download
memory/2212-8-0x0000000003C00000-0x0000000003C01000-memory.dmp

Filesize
4KB

Download
memory/2212-13-0x0000000003C00000-0x0000000003D00000-memory.dmp

Filesize
1024KB

Download
memory/2212-6-0x0000000003C00000-0x0000000003D00000-memory.dmp

Filesize
1024KB

Download
memory/2212-5-0x0000000003C00000-0x0000000003D00000-memory.dmp

Filesize
1024KB

Download
memory/2212-14-0x0000000003F10000-0x0000000003F40000-memory.dmp

Filesize
192KB

Download
memory/5080-37-0x00000000023D0000-0x0000000002439000-memory.dmp

Filesize
420KB

Download
memory/5080-39-0x00000000023D0000-0x0000000002439000-memory.dmp

Filesize
420KB

Download
memory/5080-38-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

Filesize
4KB

Download
memory/5080-40-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

Filesize
4KB

Download
memory/5080-41-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

Filesize
1024KB

Download
memory/5080-42-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

Filesize
1024KB

Download
memory/5080-43-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

Filesize
4KB

Download
memory/5080-44-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

Filesize
4KB

Download
memory/5080-46-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

Filesize
4KB

Download
memory/5080-45-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

Filesize
4KB

Download
memory/5080-47-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

Filesize
4KB

Download
memory/5080-49-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

Filesize
4KB

Download
memory/5080-48-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

Filesize
4KB

Download
memory/5080-51-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

Filesize
1024KB

Download
memory/5080-52-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

Filesize
4KB

Download
memory/5080-53-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

Filesize
1024KB

Download
memory/5080-50-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

Filesize
4KB

Download
memory/5080-63-0x0000000003EF0000-0x0000000003F20000-memory.dmp

Filesize
192KB

Download
memory/5080-54-0x0000000003EF0000-0x0000000003F20000-memory.dmp

Filesize
192KB

Download
memory/5080-671-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

Filesize
4KB

Download
memory/5080-676-0x0000000003EF0000-0x0000000003F20000-memory.dmp

Filesize
192KB

Download