wannacry | 09ba59540b90eebf1e468503d9057b65c4d3f7b3ad229d2b144d8ea2ccd0a1e0

General

Target

02353699.exe
Size

3.6MB
MD5

ec1255400b92ed7409929f0d89e1f992
SHA1

b9802163ae4dbb85e50143a51fbb4f2337ee2466
SHA256

09ba59540b90eebf1e468503d9057b65c4d3f7b3ad229d2b144d8ea2ccd0a1e0
SHA512

2aa825c4e85e39202903e10b38171c56505271ca7b1fc465730fc037c26590b67d48db24a1da38f167719653fe999276e1308f52d588d7b1ada34afa68dfd736
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/ZtnfFpoMuS82h54kDDb346n04a8/74/t1G:2nAQqMSPbcBVQej1poMr/5r3yM

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (1435) 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 1 IoCs

Processes:

tasksche.exe

pid process

1752 tasksche.exe

pid	process
1752	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

02353699.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	02353699.exe

Drops file in Windows directory 1 IoCs

Processes:

02353699.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 02353699.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	02353699.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

02353699.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	02353699.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	02353699.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{63518C22-D30C-4F36-96C1-AF3B59BA6728}	02353699.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{63518C22-D30C-4F36-96C1-AF3B59BA6728}\WpadDecisionTime = d0aee0c29d91d901	02353699.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-80-67-5b-b3-fc\WpadDecisionReason = "1"	02353699.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-80-67-5b-b3-fc\WpadDecisionTime = d0aee0c29d91d901	02353699.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-80-67-5b-b3-fc\WpadDecision = "0"	02353699.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	02353699.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	02353699.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	02353699.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-80-67-5b-b3-fc	02353699.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	02353699.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	02353699.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	02353699.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	02353699.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	02353699.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{63518C22-D30C-4F36-96C1-AF3B59BA6728}\WpadNetworkName = "Network 3"	02353699.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{63518C22-D30C-4F36-96C1-AF3B59BA6728}\92-80-67-5b-b3-fc	02353699.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	02353699.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	02353699.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	02353699.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	02353699.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{63518C22-D30C-4F36-96C1-AF3B59BA6728}\WpadDecisionReason = "1"	02353699.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{63518C22-D30C-4F36-96C1-AF3B59BA6728}\WpadDecision = "0"	02353699.exe

C:\Users\Admin\AppData\Local\Temp\02353699.exe
"C:\Users\Admin\AppData\Local\Temp\02353699.exe"
1⤵
- Drops file in Windows directory
PID:2028

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:1752

C:\Users\Admin\AppData\Local\Temp\02353699.exe
C:\Users\Admin\AppData\Local\Temp\02353699.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:524

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

1

T1046

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
bcccb5e7cbd5ebc22f2dc2f274c5c812

SHA1
6cce08b12a157266e054bd52b5b346abaad13b98

SHA256
565774a3e66c69718627e9437f6cad48b9c6dc09a1ea21e1f9b942f1ad4b6fb5

SHA512
12e2cfb34c7297a91c416d6686076a32438de988682577d01c7d2e139a908143d947a3f0caaaa2933666c9592e9d3f3bbc91d5ddcf3e1215e1f74852268200ba

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