wannacry | 8176a41951eb1a1a73e97a97840f26ba08c026d3814afff9bf550313de240d42

Resubmissions

06-02-2025 13:07

250206-qcvl1avret 10

06-02-2025 12:55

250206-p5386sxlgn 10

Analysis

max time kernel
29s
max time network
30s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
06-02-2025 13:07

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General

Target

2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Size

5.0MB
MD5

72d92287d385c4fdb86894713d70cb43
SHA1

91cc65bd4c65232ab58a70ed2acb5d021e9e8392
SHA256

8176a41951eb1a1a73e97a97840f26ba08c026d3814afff9bf550313de240d42
SHA512

a2e2b684a25c6a567d255d0226b5bc231f600f1fc8c3505ae0e41cdaaf35be4fd3ff5752d7bf23da55249f8a93a70fc897ab0c29c87b3b7ad9930778454e6a13
SSDEEP

6144:GE9l9ynqIYVTH5DgSgNajldktM0XXrCIagQhMV9qbBLIwYQuy8DLq:GebLgmluCtgQhMbaIMu7L

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry

Executes dropped EXE 1 IoCs

pid	Process
4864	tasksche.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1088	4864	WerFault.exe	95

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 4864	2344	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe	95
PID 2344 wrote to memory of 4864	2344	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe	95
PID 2344 wrote to memory of 4864	2344	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe	95

C:\Users\Admin\AppData\Local\Temp\2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2344
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4864
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4864 -s 220
    3⤵
    - Program crash
    PID:1088

C:\Users\Admin\AppData\Local\Temp\2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:5096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4864 -ip 4864
1⤵
PID:1872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
0a58685f92214bc3980eb4a9b932af85

SHA1
9e44e912fef06ce84989626496bd1766dbd25d84

SHA256
f6d60a21b5a3fb4b7ef9a6fecab3aaf6d058032fbf3ec479cc0ad59b24c09af4

SHA512
091278fdfc9cccdaa2fe46e9ac942aaf389487d4f7fbb876532b1f926e407e189dce5b70a8602596d11f8bca8da592d69383ad14cd58dbe77a79fa761a190ca6

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