wannacry | 76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa

General

Target

76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Size

5.0MB
MD5

458e646ee79bbc56e8a8859478488194
SHA1

25e26d981d34036d766d35faa693ad22a440e453
SHA256

76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa
SHA512

6a4def9bc5408d9261e8a7fd249f721cd8d894c3b87cc21ae6505b3c2102949980124b6f632270cc91d29761de72d0b4d3514eec03ae10f135f5c42a8aed89fd
SSDEEP

98304:XDqPoBhf1aRxcSUDk36SAEdhvxWa9P59myAVp2H:XDqPS1Cxcxk3ZAEUadCyc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3276) 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

2816 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
2816	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe

Drops file in Windows directory 1 IoCs

Processes:

76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{24D3E329-6F1D-463F-B14B-C28ECC35D7A1}\WpadDecision = "0"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{24D3E329-6F1D-463F-B14B-C28ECC35D7A1}\fe-7d-98-0e-9a-4f	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{24D3E329-6F1D-463F-B14B-C28ECC35D7A1}	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{24D3E329-6F1D-463F-B14B-C28ECC35D7A1}\WpadDecisionReason = "1"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-7d-98-0e-9a-4f\WpadDecision = "0"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0083000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{24D3E329-6F1D-463F-B14B-C28ECC35D7A1}\WpadDecisionTime = c01377fbf6d1da01	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-7d-98-0e-9a-4f	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-7d-98-0e-9a-4f\WpadDecisionReason = "1"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-7d-98-0e-9a-4f\WpadDecisionTime = c01377fbf6d1da01	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{24D3E329-6F1D-463F-B14B-C28ECC35D7A1}\WpadNetworkName = "Network 3"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe

C:\Users\Admin\AppData\Local\Temp\76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
"C:\Users\Admin\AppData\Local\Temp\76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe"
1⤵
- Drops file in Windows directory
PID:2368

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2816

C:\Users\Admin\AppData\Local\Temp\76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe
C:\Users\Admin\AppData\Local\Temp\76a4b65c152383aab2c6143c75f3028cb845dd8430368650b9f0ad424a7d6bfa.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2756

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
0ed6992d75d982d9cfb6c8bbf7958b26

SHA1
7374b2519b50e91598cfb1ea604afbbcc2a92440

SHA256
9031a587e0ea4204914f3102fa2700275a657ace64924b49d0d4c27b4c7f4a5b

SHA512
29442b5ab43abe3ad587f62bbdfded931ed73fd6b90249db4720209cd5295dabe524a2159e006ea8f5d16f30661afe97b20b2fe1bc20306a6f27fc3ea8bcecc9

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