wannacry | 805bc4fd54475d93b3811aeb32f2c761f46d52168507f3a0688d231ea117915e

Resubmissions

03-02-2025 04:35

250203-e7wxrsslej 10

03-02-2025 02:39

250203-c5gzqaxkdy 10

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2025 02:39

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General

Target

2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Size

2.2MB
MD5

211d3c5f37a5b13a27dc0ccfe5a41168
SHA1

6dad34d736943e645845c21a14666337da5fc6ce
SHA256

805bc4fd54475d93b3811aeb32f2c761f46d52168507f3a0688d231ea117915e
SHA512

2886b97c9a25cdbe443f49944fe50453742592fc501395221c4b4f5feeebe4f5b1df92de2fc8b91df67b84377fea3b428168c2a0a3d04e2d2a64efa9bf16e87b
SSDEEP

12288:e1bLgmluCti62gaIMu7LocQhfYNvrTcbckPU82900Ve7zw+K+DHeQYSUjEXF:QbLguriXd5cQdIvrYbcMNgef0QeQj

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3240) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
3164	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2528	3164	WerFault.exe	88

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	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_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\ProxyBypass = "1"	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 3164	3064	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe	88
PID 3064 wrote to memory of 3164	3064	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe	88
PID 3064 wrote to memory of 3164	3064	2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe	88

C:\Users\Admin\AppData\Local\Temp\2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3064
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3164
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 596
    3⤵
    - Program crash
    PID:2528

C:\Users\Admin\AppData\Local\Temp\2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-03_211d3c5f37a5b13a27dc0ccfe5a41168_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3164 -ip 3164
1⤵
PID:1536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

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
81eae535f1bd00964645080809077b55

SHA1
9f3e1329142afb5ef9ba9e85b800876ed630eb30

SHA256
cc63f36dc17a0a98aa80e296f467cda6a1e0771e8d1b224efe524b532e7bc3dc

SHA512
d53e2095b46f65cbd55a85f1b594dcdba95188156e322340bd39235369f20536bc857f8f81b1e9c8d7321f1ba991d798ead95b067b0547e6ed41cdccd8bef704

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