wannacry | 0b3ca341ddbd0738897f19f85a6881c5edb04cb78f5eedfa23f78459bd6352db

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
18-08-2024 04:58

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General

Target

2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Size

3.6MB
MD5

77abd528f8b42d7af37582450d508bbd
SHA1

4c8aee6d8a8420d06fb243ebe345a5bebfdbc550
SHA256

0b3ca341ddbd0738897f19f85a6881c5edb04cb78f5eedfa23f78459bd6352db
SHA512

eac563d6015bf9f9795409853bf3d8bff5e0ad7279136c2235dc1490cdec1a6a730b72b3bfaa4cbfbaed8c7de3d586867138cd6ad27dfa8ec3ee0db75f8f1af5
SSDEEP

98304:XDqPoBz7aRxcSUDk36SAEdhvxWa9P593R8yAVp2HY:XDqPGCxcxk3ZAEUadzR8yc4HY

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3346) 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
3844	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	2024-08-18_77abd528f8b42d7af37582450d508bbd_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	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3988
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3844

C:\Users\Admin\AppData\Local\Temp\2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4480

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=4056,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4104 /prefetch:8
1⤵
PID:3964

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
6acefe8ac45268375b73d87404088e19

SHA1
3eb6fe933e76a0616cb7a757d5f5049734199527

SHA256
94be05ef50bd9dfff19c396f888c9d8f40790dae05b776c7e61578ba3ba18624

SHA512
5dfe3ebb82740102500f0c6e3549c5d1e2f34c32349f06f0005299d71923b041b0b383df49f6dd9a03b6a4f5885f088192f398b7a5b19cc3541fad7bd2f45812

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