wannacry | a201e56c992edf1fd30417991b95127f99888c6d27747899f65504e6893ddd1d

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-01-2025 10:43

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General

Target

2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Size

5.0MB
MD5

075ca33b35164058d848ac1cb410dc42
SHA1

5e37df9dd0fe22c3623453476d4a13f0b96826e0
SHA256

a201e56c992edf1fd30417991b95127f99888c6d27747899f65504e6893ddd1d
SHA512

f22cb008f65544cb00947ce6f7995aeba073473da25b3584b0217bc32c18a44807a05246ab4fff58a5d86e01be49e01efbe27045decc681f051edbe1e609d545
SSDEEP

98304:XDaiEkmnfZ1aRxcSUDk36SAEdhX0Aj4Ouenmur2uuh:XDa6mnfZ1Cxcxk3ZAE70AjKem/uuh

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 (3187) 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
5096	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 Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2240	5096	WerFault.exe	83

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	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 5096	2392	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe	83
PID 2392 wrote to memory of 5096	2392	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe	83
PID 2392 wrote to memory of 5096	2392	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe	83

C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5096
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 216
    3⤵
    - Program crash
    PID:2240

C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5096 -ip 5096
1⤵
PID:4856

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
4a392478a337b59561bbabcb609db282

SHA1
e1983828982ff6597d151169582c06f5f56ba453

SHA256
f5bea6ca87381376fea669c72f49c7b0bf8ef5fdf307cd5057a23dfa40917125

SHA512
7d9885e893abb73fe65cfa38c97303b4dd32a98f23972c5e7c12074fa2dd16d7bc84e4bcad7dffb8ec219cc3bd7a23ab272bbce5f4a3c3c6ea326fddab924fdd

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