wannacry | 842ee68d59d874278e42387c007672eaf79410885795ec218ee93420bf814037

General

Target

178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Size

3.6MB
MD5

178241e5929ea913eb45244459adc058
SHA1

0c3813d8bb094e7d06b72aaac3d08dfc7235ecd6
SHA256

842ee68d59d874278e42387c007672eaf79410885795ec218ee93420bf814037
SHA512

30ae4dca49282f56a98131e1291128ec0d164a543a6ce64bc0707494837e76241efd50be750ce34dd942a417d83feb42d0d5e1066fb6c00ace060a962b91505f
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:XDqPoBhz1aRxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3357) 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

2604 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
2604	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

178241e5929ea913eb45244459adc058_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	178241e5929ea913eb45244459adc058_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

178241e5929ea913eb45244459adc058_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 178241e5929ea913eb45244459adc058_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	178241e5929ea913eb45244459adc058_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

178241e5929ea913eb45244459adc058_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0140000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\WpadDecision = "0"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\WpadNetworkName = "Network 3"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\WpadDecisionReason = "1"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\WpadDecisionTime = d09e6835e19eda01	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-bc-3c-1a-53-30	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\8e-bc-3c-1a-53-30	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-bc-3c-1a-53-30\WpadDecisionReason = "1"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-bc-3c-1a-53-30\WpadDecisionTime = d09e6835e19eda01	178241e5929ea913eb45244459adc058_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-bc-3c-1a-53-30\WpadDecision = "0"	178241e5929ea913eb45244459adc058_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\178241e5929ea913eb45244459adc058_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\178241e5929ea913eb45244459adc058_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:2360

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2604

C:\Users\Admin\AppData\Local\Temp\178241e5929ea913eb45244459adc058_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\178241e5929ea913eb45244459adc058_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2112

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

Replay Monitor

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Downloads

C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
be10cea9580fba67a4469ce9cf38407d

SHA1
7c0d88242a3741b1b17df5758beb9115779f0e9d

SHA256
beab99bc66324c4b842f5df36493fe518c0d401c3627ff27a96d9ad739df3b95

SHA512
5fd07c0570d86cc0608c7c9b7d07b8dd55e8669b2abb4daaccfd1666314c90cc1d36bda0f1eea8dc131ca061513f5120f43ebe6e08aa11a98203109322236309

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