wannacry | cd1e83c4c9993b27a9fa33b75fe30252add68b23a384beb47d3d413acda83941

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-09-2024 10:00

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General

Target

2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe
Size

5.0MB
MD5

7e45c6698eaf11b979809937693bf542
SHA1

66f59eb554178333fc1ad45b139e5144bf0e5216
SHA256

cd1e83c4c9993b27a9fa33b75fe30252add68b23a384beb47d3d413acda83941
SHA512

4735abc301ea6564d3e946b5fe96608028ac942d75003f4e09b8e1c7ff551187eb6f851ea4ecf8f6c1a224d131ca2ade02f79fc3c6d3d11afda73e5d4aa5a22f
SSDEEP

98304:XDqPoBtaRxcSUDk36SAEdhvxWa9P593R8yAVp2H:XDqPICxcxk3ZAEUadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3371) 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
4796	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	2024-09-29_7e45c6698eaf11b979809937693bf542_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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1900
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4796

C:\Users\Admin\AppData\Local\Temp\2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-29_7e45c6698eaf11b979809937693bf542_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3708

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3924,i,3861745594156495651,17595114179815238301,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8
1⤵
PID:1924

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
f048e21263cfd757e0ac828c5fc58f37

SHA1
67f5576c92bf6b8baab54ebcbd9786f9faf4256a

SHA256
884fc6b5c751f14ee620a06c4745e21c6fcd2681b9d554fb25ef6d4bc06538cc

SHA512
c00c7f0500b993834bc7a9a45f7ae8f034387f5e96ec3f6c277e2b2296b1871d948388f021a4be72e69b1d3ee1e0e7fae10ebe65223d7e76dec92b176e9d0513

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