djvu | 03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3

Analysis

max time kernel
137s
max time network
148s
platform
windows7_x64
resource
win7-en
submitted
13/09/2021, 06:42

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General

Target
03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
Size 841KB
Sample210913-hgfpmsgbcj
SHA256 03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3
MD5 a229d8fa68ab28b73c61d6d1d2d55e83
SHA1 655e1f36f693604f02ddb8fa2a9aecc5ca8c5e7b
SHA512 d1bf7ae2f8aea5317542b936ec83619f3690a99b14600e831d28e8520281eadf303fe70b16ec2a73700d657b8b08b49dca69b3bbb331306e81e9f8f849d7c452
MD5 SHA1 SHA512

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

40.5

Botnet

https://gheorghip.tumblr.com/

Attributes

profile_id
517

Signatures

Detected Djvu ransomware 6 IoCs

resource	yara_rule
behavioral1/memory/1736-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1736-54-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1800-56-0x00000000031B0000-0x00000000032CB000-memory.dmp	family_djvu
behavioral1/memory/1736-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/748-62-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/748-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata

Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/480-75-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar
behavioral1/memory/480-76-0x000000000049EC7D-mapping.dmp	family_vidar
behavioral1/memory/1800-79-0x00000000021D0000-0x00000000022A2000-memory.dmp	family_vidar
behavioral1/memory/480-80-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar

Downloads MZ/PE file

Executes dropped EXE 8 IoCs

pid	Process
1800	build2.exe
480	build2.exe
1416	build3.exe
1064	build3.exe
880	mstsca.exe
952	mstsca.exe
1048	mstsca.exe
1524	mstsca.exe

Loads dropped DLL 8 IoCs

pid	Process
748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
480	build2.exe
480	build2.exe
480	build2.exe
480	build2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
940	icacls.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\41ffe4ec-c4e8-4c02-88b9-fec01021370c\\03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe\" --AutoStart"	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	api.2ip.ua
7	api.2ip.ua
15	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 1800 set thread context of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1640 set thread context of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1800 set thread context of 480	1800	build2.exe	38
PID 1416 set thread context of 1064	1416	build3.exe	40
PID 880 set thread context of 952	880	mstsca.exe	51
PID 1048 set thread context of 1524	1048	mstsca.exe	55

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
872	schtasks.exe
316	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1976	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1560	taskkill.exe

Modifies system certificate store 2 TTPs 5 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
480	build2.exe
480	build2.exe
480	build2.exe
480	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1560	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1800 wrote to memory of 1736	1800	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	27
PID 1736 wrote to memory of 940	1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	33
PID 1736 wrote to memory of 940	1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	33
PID 1736 wrote to memory of 940	1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	33
PID 1736 wrote to memory of 940	1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	33
PID 1736 wrote to memory of 1640	1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	34
PID 1736 wrote to memory of 1640	1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	34
PID 1736 wrote to memory of 1640	1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	34
PID 1736 wrote to memory of 1640	1736	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	34
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 1640 wrote to memory of 748	1640	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	35
PID 748 wrote to memory of 1800	748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	37
PID 748 wrote to memory of 1800	748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	37
PID 748 wrote to memory of 1800	748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	37
PID 748 wrote to memory of 1800	748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	37
PID 1800 wrote to memory of 480	1800	build2.exe	38
PID 1800 wrote to memory of 480	1800	build2.exe	38
PID 1800 wrote to memory of 480	1800	build2.exe	38
PID 1800 wrote to memory of 480	1800	build2.exe	38
PID 1800 wrote to memory of 480	1800	build2.exe	38
PID 1800 wrote to memory of 480	1800	build2.exe	38
PID 1800 wrote to memory of 480	1800	build2.exe	38
PID 1800 wrote to memory of 480	1800	build2.exe	38
PID 1800 wrote to memory of 480	1800	build2.exe	38
PID 748 wrote to memory of 1416	748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	39
PID 748 wrote to memory of 1416	748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	39
PID 748 wrote to memory of 1416	748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	39
PID 748 wrote to memory of 1416	748	03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe	39
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1416 wrote to memory of 1064	1416	build3.exe	40
PID 1064 wrote to memory of 872	1064	build3.exe	41
PID 1064 wrote to memory of 872	1064	build3.exe	41
PID 1064 wrote to memory of 872	1064	build3.exe	41
PID 1064 wrote to memory of 872	1064	build3.exe	41
PID 480 wrote to memory of 2028	480	build2.exe	44
PID 480 wrote to memory of 2028	480	build2.exe	44
PID 480 wrote to memory of 2028	480	build2.exe	44

C:\Users\Admin\AppData\Local\Temp\03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
"C:\Users\Admin\AppData\Local\Temp\03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Users\Admin\AppData\Local\Temp\03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
  "C:\Users\Admin\AppData\Local\Temp\03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1736
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\41ffe4ec-c4e8-4c02-88b9-fec01021370c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:940
- - C:\Users\Admin\AppData\Local\Temp\03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
    "C:\Users\Admin\AppData\Local\Temp\03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1640
  - - C:\Users\Admin\AppData\Local\Temp\03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe
      "C:\Users\Admin\AppData\Local\Temp\03852e30ab9c4e38366f634c4db92874716d98af406827bf08f3840571dda9b3.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Loads dropped DLL
      Modifies system certificate store
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:748
    - - C:\Users\Admin\AppData\Local\820f1dbc-df15-4d8b-80b4-f59ad5f7c52b\build2.exe
        
        "C:\Users\Admin\AppData\Local\820f1dbc-df15-4d8b-80b4-f59ad5f7c52b\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1800
      - C:\Users\Admin\AppData\Local\820f1dbc-df15-4d8b-80b4-f59ad5f7c52b\build2.exe
        
        "C:\Users\Admin\AppData\Local\820f1dbc-df15-4d8b-80b4-f59ad5f7c52b\build2.exe"
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:480
        
        C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\820f1dbc-df15-4d8b-80b4-f59ad5f7c52b\build2.exe" & del C:\ProgramData\*.dll & exit
        7⤵
        
        PID:2028
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im build2.exe /f
        8⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1560
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        8⤵
        Delays execution with timeout.exe
        
        PID:1976
    - - C:\Users\Admin\AppData\Local\820f1dbc-df15-4d8b-80b4-f59ad5f7c52b\build3.exe
        
        "C:\Users\Admin\AppData\Local\820f1dbc-df15-4d8b-80b4-f59ad5f7c52b\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1416
      - C:\Users\Admin\AppData\Local\820f1dbc-df15-4d8b-80b4-f59ad5f7c52b\build3.exe
        
        "C:\Users\Admin\AppData\Local\820f1dbc-df15-4d8b-80b4-f59ad5f7c52b\build3.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:1064
        
        C:\Windows\SysWOW64\schtasks.exe
        
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
        7⤵
        Creates scheduled task(s)
        
        PID:872

C:\Windows\system32\taskeng.exe
taskeng.exe {18604CFF-77E9-4120-9C2B-3BF187A3516B} S-1-5-21-1669990088-476967504-438132596-1000:KJUCCLUP\Admin:Interactive:[1]
1⤵
PID:2036
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:880
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:952
  - - C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      4⤵
      Creates scheduled task(s)
      PID:316
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:1048
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:1524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/480-75-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/480-80-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/748-64-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1064-92-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1064-86-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1416-91-0x0000000000230000-0x0000000000234000-memory.dmp

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memory/1736-53-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1736-55-0x0000000076041000-0x0000000076043000-memory.dmp

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memory/1736-57-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1800-79-0x00000000021D0000-0x00000000022A2000-memory.dmp

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memory/1800-56-0x00000000031B0000-0x00000000032CB000-memory.dmp

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