wannacry | 0734d5ab03a578e39f01af947cec5f76bdd3f491c64bfe7f1b83aec2afc36fd9

General

Target

2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Size

3.6MB
MD5

00a59dcbaba9677921dca2be0a253e53
SHA1

c508c275957ba4c5cbae3388ce00828ada7fa665
SHA256

0734d5ab03a578e39f01af947cec5f76bdd3f491c64bfe7f1b83aec2afc36fd9
SHA512

27e2a14b19bf8ce9ec41c879dff67b8cd006fcfe38bb5b16bfabc0de7c67f7b669a919da1749d42d0c31bdf1ca44fe3b27975b3f7d8f6d93bc1447f201b12651
SSDEEP

98304:XDaiEkmnft4PdpR2j50Aj4Ouenmur2uuhQ2HI:XDa6mnft4FpR2j50AjKem/uuh/HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3216) 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

2680 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

pid	process
2680	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-fd-78-1c-ac-e3\WpadDecision = "0"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B855F93D-FB51-4466-B153-42F67BA92A31}	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B855F93D-FB51-4466-B153-42F67BA92A31}\WpadDecisionTime = 30b17484f3cdda01	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-fd-78-1c-ac-e3\WpadDecisionReason = "1"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-fd-78-1c-ac-e3\WpadDecisionTime = 30b17484f3cdda01	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0144000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B855F93D-FB51-4466-B153-42F67BA92A31}\f6-fd-78-1c-ac-e3	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-fd-78-1c-ac-e3	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B855F93D-FB51-4466-B153-42F67BA92A31}\WpadDecision = "0"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B855F93D-FB51-4466-B153-42F67BA92A31}\WpadNetworkName = "Network 3"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
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\UNCAsIntranet = "0"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B855F93D-FB51-4466-B153-42F67BA92A31}\WpadDecisionReason = "1"	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe

description	pid	process	target process
PID 1740 wrote to memory of 2680	1740	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe	tasksche.exe
PID 1740 wrote to memory of 2680	1740	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe	tasksche.exe
PID 1740 wrote to memory of 2680	1740	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe	tasksche.exe
PID 1740 wrote to memory of 2680	1740	2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe	tasksche.exe

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:1740

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2680

C:\Users\Admin\AppData\Local\Temp\2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024070300a59dcbaba9677921dca2be0a253e53wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
e53487c3c1e2a53505ebca2d83f3197c

SHA1
8906fcfd139586798d7f34d1fd6804deedb844ec

SHA256
6462ec0f6f1253cc7544050a3fdba8db8c6fc66cd31aa0d785163fb7c01ee4a7

SHA512
36486b0c507c0bb8acc785bbcac7e6c23d1eabb234de50cebfc422385650848aa57b7bf4a482aea0db72348b9abf0e743faf1c0442ee76414e1ede495a5c7762

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads