wannacry | 0734d5ab03a578e39f01af947cec5f76bdd3f491c64bfe7f1b83aec2afc36fd9

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04/07/2024, 09:21

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General

Target
2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Size 3.6MB
Sample240704-lbcmkstfnm
SHA256 0734d5ab03a578e39f01af947cec5f76bdd3f491c64bfe7f1b83aec2afc36fd9
MD5 00a59dcbaba9677921dca2be0a253e53
SHA1 c508c275957ba4c5cbae3388ce00828ada7fa665
SHA512 27e2a14b19bf8ce9ec41c879dff67b8cd006fcfe38bb5b16bfabc0de7c67f7b669a919da1749d42d0c31bdf1ca44fe3b27975b3f7d8f6d93bc1447f201b12651
SSDEEP 98304:XDaiEkmnft4PdpR2j50Aj4Ouenmur2uuhQ2HI:XDa6mnft4FpR2j50AjKem/uuh/HI
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3270) 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
1924	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	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
228	1924	WerFault.exe	89

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 1924	2332	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe	89
PID 2332 wrote to memory of 1924	2332	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe	89
PID 2332 wrote to memory of 1924	2332	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2332
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1924
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 216
    3⤵
    - Program crash
    PID:228

C:\Users\Admin\AppData\Local\Temp\2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe -m security
1⤵
- Modifies data under HKEY_USERS
PID:2040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1924 -ip 1924
1⤵
PID:2892

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 --no-appcompat-clear --field-trial-handle=4124,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=4172 /prefetch:8
1⤵
PID:4092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 6462ec0f6f1253cc7544050a3fdba8db8c6fc66cd31aa0d785163fb7c01ee4a7
MD5 e53487c3c1e2a53505ebca2d83f3197c
SHA1 8906fcfd139586798d7f34d1fd6804deedb844ec
SHA512 36486b0c507c0bb8acc785bbcac7e6c23d1eabb234de50cebfc422385650848aa57b7bf4a482aea0db72348b9abf0e743faf1c0442ee76414e1ede495a5c7762
SSDEEP 98304:QaiEkmnft4PdpR2j50Aj4Ouenmur2uuhQ2Hj:Qa6mnft4FpR2j50AjKem/uuh/Hj
MD5 SHA1 SHA512 SSDEEP

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