wannacry | b086c64cdbda9f6340530855f30f6a71c9e75007bc29d0c65e104ce6a3a68be3

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
14-02-2025 01:07

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General

Target

2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe
Size

3.6MB
MD5

2e5339a3ccfbe606059fcbd4ce71455e
SHA1

cc2c34216a989d887b708239d070c3135e86c7b0
SHA256

b086c64cdbda9f6340530855f30f6a71c9e75007bc29d0c65e104ce6a3a68be3
SHA512

a7c6b8bf8e87ec1ffc63dd1ffee9c2dc14a0e84b3e736a59f3048a26adba78dce745f373fcf05fec67f497c2db9973b185e1e46aa8943ec8e4d5bbd98c4574d7
SSDEEP

98304:Z1PoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:Z1Pe1Cxcxk3ZAEUadzR8yc4HI

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 (3344) 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
1712	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 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1660	1712	WerFault.exe	31

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	2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 1712	1956	2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe	31
PID 1956 wrote to memory of 1712	1956	2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe	31
PID 1956 wrote to memory of 1712	1956	2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe	31
PID 1956 wrote to memory of 1712	1956	2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe	31
PID 1712 wrote to memory of 1660	1712	tasksche.exe	32
PID 1712 wrote to memory of 1660	1712	tasksche.exe	32
PID 1712 wrote to memory of 1660	1712	tasksche.exe	32
PID 1712 wrote to memory of 1660	1712	tasksche.exe	32

C:\Users\Admin\AppData\Local\Temp\2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 36
    3⤵
    - Program crash
    PID:1660

C:\Users\Admin\AppData\Local\Temp\2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-14_2e5339a3ccfbe606059fcbd4ce71455e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1028

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
2c18486f6339720ec586e8946c070df0

SHA1
af841da81bfecd5664d25e926e9d5a3a63f8a49f

SHA256
93410da7bdcf5637ff245e2feae1756253796ebfbb42abad0597173e3fe05924

SHA512
e0695af5e74bc919ce59012b7d4affadc5910dc8de062875d08ea36f1fca01e9c9dc17de2106f200c792e702770ff49f9cb2e7fb064dfbe3bb90c2fa6ab488c7

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