wannacry | b610f6bae1dbd0253c508d9995d18ebdad3d985b84060ec9eaf39472d8903e2b

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220718-en
resource tags

arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2022, 01:58

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
6927111c4d2937c06c1cc3978d2e9214.dll
Size 5.0MB
Sample220720-cdvfqsahal
SHA256 b610f6bae1dbd0253c508d9995d18ebdad3d985b84060ec9eaf39472d8903e2b
MD5 6927111c4d2937c06c1cc3978d2e9214
SHA1 66a1ee19b5b71f0011a887f971ff1243daf7c63e
SHA512 4244c666e87d4a4e0b409fffbb58c2734b954a62d9546fb7fb5558ac9da0f949648f4c7237876a8fc7f226f7fa479b791c626d375900cd2f354417f986adde6e
MD5 SHA1 SHA512

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3182) 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 2 IoCs

pid	Process
5000	mssecsvr.exe
2216	mssecsvr.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

description	ioc	Process
File created	C:\WINDOWS\mssecsvr.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvr.exe

Modifies data under HKEY_USERS 5 IoCs

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 4988	4952	rundll32.exe	76
PID 4952 wrote to memory of 4988	4952	rundll32.exe	76
PID 4952 wrote to memory of 4988	4952	rundll32.exe	76
PID 4988 wrote to memory of 5000	4988	rundll32.exe	77
PID 4988 wrote to memory of 5000	4988	rundll32.exe	77
PID 4988 wrote to memory of 5000	4988	rundll32.exe	77

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6927111c4d2937c06c1cc3978d2e9214.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6927111c4d2937c06c1cc3978d2e9214.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:4988
- - C:\WINDOWS\mssecsvr.exe
    C:\WINDOWS\mssecsvr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:5000

C:\WINDOWS\mssecsvr.exe
C:\WINDOWS\mssecsvr.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2216

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

Loading Replay Monitor...

Downloads

mssecsvr.exe

Path C:\WINDOWS\mssecsvr.exe
Size 2.2MB
SHA256 6201c93531f535842ba413bbfec852119d3349c48f93110521ac74d61c01c326
MD5 ad1a6a33842bac7618e6796767ab556d
SHA1 6622c1514b7c7d677669cdae5497736727941e2e
SHA512 5f3fd6cef4cf27c4362e5b23c7380594f2b3f7d3596b56fb1a1eb58d688e2147b3ee538ce3da3dd6d67d3789fa68ef6744d62cc598050869ac4e7dc305694b8d
SSDEEP 49152:QnGMSPbcBVYej/1INRx+TSqTdX1HkQo6SA:QGPoB1z1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

Submit Download

mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 6201c93531f535842ba413bbfec852119d3349c48f93110521ac74d61c01c326
MD5 ad1a6a33842bac7618e6796767ab556d
SHA1 6622c1514b7c7d677669cdae5497736727941e2e
SHA512 5f3fd6cef4cf27c4362e5b23c7380594f2b3f7d3596b56fb1a1eb58d688e2147b3ee538ce3da3dd6d67d3789fa68ef6744d62cc598050869ac4e7dc305694b8d
SSDEEP 49152:QnGMSPbcBVYej/1INRx+TSqTdX1HkQo6SA:QGPoB1z1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

Submit Download

mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 6201c93531f535842ba413bbfec852119d3349c48f93110521ac74d61c01c326
MD5 ad1a6a33842bac7618e6796767ab556d
SHA1 6622c1514b7c7d677669cdae5497736727941e2e
SHA512 5f3fd6cef4cf27c4362e5b23c7380594f2b3f7d3596b56fb1a1eb58d688e2147b3ee538ce3da3dd6d67d3789fa68ef6744d62cc598050869ac4e7dc305694b8d
SSDEEP 49152:QnGMSPbcBVYej/1INRx+TSqTdX1HkQo6SA:QGPoB1z1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads