wannacry | 8d7d254700be152c7d6ca0492db3a2bc62c642ef3bf1a4171062eb64a47fb0eb

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
28-07-2024 11:42

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General

Target

2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Size

5.0MB
MD5

1078cfa46f9250f8b9c030b24dbe73bf
SHA1

885891533ed5a0bfcf6a64762c8212f05b525eff
SHA256

8d7d254700be152c7d6ca0492db3a2bc62c642ef3bf1a4171062eb64a47fb0eb
SHA512

4196dbb1d0fb17c4a3c62666c32cef5b52a21e2be409ad5f49a250cf8fc1f5d465384c8641b440bca44cf3ac827deba3c3a51f5dca223c7eadb09151415c88b0
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBhz1aRxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3273) 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

Processes:

tasksche.exe

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

Processes:

2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

pid	process
5096	tasksche.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.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

Processes:

2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

Processes:

2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2324

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:5096

C:\Users\Admin\AppData\Local\Temp\2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3684

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
3.4MB

MD5
74957d13dc6df9e917053d67adcbffb4

SHA1
a312339e0b9023b610d609163d77a1ee352e516a

SHA256
aee5e74ba8157434499508a02aea7f5808abbf82bdfc59d67513a3e660cb54c5

SHA512
cb1e9c3fee75fdce98d9c584b50499cd42921445c101151e0f6ee61a51a7f36188626f94b637a7dd81beb0184e5c0d64f71ca7ffe083e6d66bd27a61a671bda3

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