wannacry | a0476451426bac54f352374f3cd0b6ea558cfbb93c294328d9f01511fc1fe822

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 12:01

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General

Target

efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Size

3.6MB
MD5

efc0124f3f46526da21abb930b6ac4df
SHA1

17cf310ec2d68b74dc0d4db332e1f11c00a79882
SHA256

a0476451426bac54f352374f3cd0b6ea558cfbb93c294328d9f01511fc1fe822
SHA512

32405acf16b460fddca7a8404bed5aa1207853e6705b1d7bc5e5b48c9327749ca3a44f68f85199a7a66930b1013333dcf2cec762115dfecf7ac6f3888c6d27da
SSDEEP

49152:2nAQqMSPbcBVQej/1HvxJM0H9PAMEcaEaue5c/bXZROAxf:yDqPoBhz1PxWa9P59Uc/Jf

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3260) 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
4068	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	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1444
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4068

C:\Users\Admin\AppData\Local\Temp\efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2424

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
cfe20946191f8dece2ea51fec2deb1fb

SHA1
eee240719f944485ee2a74b26cb8cd845a6957e6

SHA256
fde815968231c37b1387d28cfce7281bea11cf077c0f3f60513eea33e648eee1

SHA512
e767ec99f29d0cf9196710d0ec2b4383f79f71afbe2f1d09b2a63c362d78c08d7925d0c9badb92d2ed9910ed5a68885ebc67bf4a3e1de0af421cb2655da86640

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