wannacry | 30c346f447a35817cd319e6f3aa7b9c5f9effa39655fde07c5e297d73ca2c59d

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
21-09-2024 16:23

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General

Target

20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe
Size

5.0MB
MD5

225f3606ab5b8673ff0e164ca787e3f7
SHA1

b8fb3bfcd6a3f8dd642320d3800eae3a85fca429
SHA256

30c346f447a35817cd319e6f3aa7b9c5f9effa39655fde07c5e297d73ca2c59d
SHA512

96cb8b0f00ea053db58bfa9604d381e23b8c12848cddb93b18448204a1497df90a663991646dcfd27b026f5587ac874534ce2c087ceb8ae32da24ae6c8172814
SSDEEP

49152:2nAQqMSPbcBVQej/OANR2Qo6SAARdhnv:yDqPoBhzOyR236SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3340) 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
1684	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	20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.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	20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4484
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1684

C:\Users\Admin\AppData\Local\Temp\20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240921225f3606ab5b8673ff0e164ca787e3f7wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:220

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=1036,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=3956 /prefetch:8
1⤵
PID:4928

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
1e1c669222be96ed02afe2a77ca77bdd

SHA1
701665ac3ab80b76a815cefd433906e0d19de787

SHA256
e2933f0d81d2f6844fd7cf87120e3b608604c6769288dd562041a0d763882e60

SHA512
2b55034c2380cc5d55a12dc267953c24c11b71154c5c02ccbbfe5768b67c3b9b883934bc70457050bda7e1b59734941fb38a87d24aa959a46fee2c829ce7319c

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