wannacry | 142715871796254e17f1ec8e66b4d00e175ed6d28b56f77859d4c54d8175a916

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220715-en
resource tags

arch:x64arch:x86image:win10v2004-20220715-enlocale:en-usos:windows10-2004-x64system
submitted
20-07-2022 02:19

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General

Target

9fe0b783f824bdac40dc63586086224e.dll
Size

5.0MB
MD5

9fe0b783f824bdac40dc63586086224e
SHA1

fecacf635bfb00428650ecf8e7e3fc2de1baf488
SHA256

142715871796254e17f1ec8e66b4d00e175ed6d28b56f77859d4c54d8175a916
SHA512

15ead91e422945834d903337762e46242a22f89580a5d40a238c0520fb8b2c8d76fd63d7ff5cd7b2c1745171d78af6814644830d45f87fe79a1d1f33a24c627f

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3146) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Executes dropped EXE 3 IoCs

Processes:

mssecsvc.exemssecsvc.exetasksche.exe

pid process

4948 mssecsvc.exe
4104 mssecsvc.exe
2484 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 Scanning
T1046
Drops file in Windows directory 2 IoCs

Processes:

mssecsvc.exerundll32.exe

description ioc process

File created C:\WINDOWS\tasksche.exe mssecsvc.exe
File created C:\WINDOWS\mssecsvc.exe rundll32.exe

pid	process
4948	mssecsvc.exe
4104	mssecsvc.exe
2484	tasksche.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe
File created	C:\WINDOWS\mssecsvc.exe	rundll32.exe

Modifies data under HKEY_USERS 5 IoCs

Processes:

mssecsvc.exe

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

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2128 wrote to memory of 2068	2128	rundll32.exe	rundll32.exe
PID 2128 wrote to memory of 2068	2128	rundll32.exe	rundll32.exe
PID 2128 wrote to memory of 2068	2128	rundll32.exe	rundll32.exe
PID 2068 wrote to memory of 4948	2068	rundll32.exe	mssecsvc.exe
PID 2068 wrote to memory of 4948	2068	rundll32.exe	mssecsvc.exe
PID 2068 wrote to memory of 4948	2068	rundll32.exe	mssecsvc.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9fe0b783f824bdac40dc63586086224e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2128

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9fe0b783f824bdac40dc63586086224e.dll,#1
2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2068

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe
3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:4948

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
4⤵
- Executes dropped EXE
PID:2484

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\WINDOWS\mssecsvc.exe

Filesize
3.6MB

MD5
b2695ce6c1dc92afb60444da9b990369

SHA1
00f2089f2f7cda94aed75335aec57a561192b002

SHA256
a7ef88ac601e18d6af3b5fdecdf8d113b43adab01679a1bc9bdd7da42a88f754

SHA512
7ef07f5afe496290587c7150d828684eed8837cbbd20ab9992f76d0e229c174edc480338294ad0d4e01b1374c235ca798944b21f5dab5b543bb519ce73f56e66

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
b2695ce6c1dc92afb60444da9b990369

SHA1
00f2089f2f7cda94aed75335aec57a561192b002

SHA256
a7ef88ac601e18d6af3b5fdecdf8d113b43adab01679a1bc9bdd7da42a88f754

SHA512
7ef07f5afe496290587c7150d828684eed8837cbbd20ab9992f76d0e229c174edc480338294ad0d4e01b1374c235ca798944b21f5dab5b543bb519ce73f56e66

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
b2695ce6c1dc92afb60444da9b990369

SHA1
00f2089f2f7cda94aed75335aec57a561192b002

SHA256
a7ef88ac601e18d6af3b5fdecdf8d113b43adab01679a1bc9bdd7da42a88f754

SHA512
7ef07f5afe496290587c7150d828684eed8837cbbd20ab9992f76d0e229c174edc480338294ad0d4e01b1374c235ca798944b21f5dab5b543bb519ce73f56e66

Download Submit
C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
e1b1bad6bfaed0c6c8a19b52c600930d

SHA1
b3d22823472ce2d50a387f62b8aa800249606fcb

SHA256
f293750cc0df738d9dfe30ffe34c240247c26df72d384f64713085fc4246e22a

SHA512
c1eff999083b1bce45e5da7413dda9ac4635848be4684bb89f9d8fcb1fea8c71f4d8bd19f3cd6ef1f66622c4bb4e346873ae2b903ac017374181a11ff1b25411

Download Submit
memory/2068-130-0x0000000000000000-mapping.dmp

Download
memory/4948-131-0x0000000000000000-mapping.dmp

Download