wannacry | 2fab19259a6a8ce55fed8ce40e3f2d1cf630461e177193696683e76d220c44ea

General

Target

ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Size

3.6MB
MD5

ce345025577e26843946a5b2456eeada
SHA1

2144fcb2ee7b4b694bb0abde64b8c3d71ead864a
SHA256

2fab19259a6a8ce55fed8ce40e3f2d1cf630461e177193696683e76d220c44ea
SHA512

70e99c1470d2a747b3ad31f0326b30e459570c1c26f1bbb68b9c5bb687bc57cb93bc1689e767deb73fd28234aab96cd141927130de7463f2a8fd9c1b25dd3a7d
SSDEEP

98304:yDqPoBRcSUDk36SAEdhvxWa9P593R8yAVp2HI:yDqP+cxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3320) 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

pid	Process
2764	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

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\WpadDecision = "0"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-8c-4a-dc-d9-a2	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0126000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\WpadNetworkName = "Network 3"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\16-8c-4a-dc-d9-a2	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\WpadDecisionReason = "1"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-8c-4a-dc-d9-a2\WpadDecisionTime = 50f7f52cf0ffda01	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-8c-4a-dc-d9-a2\WpadDecision = "0"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\WpadDecisionTime = 50f7f52cf0ffda01	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-8c-4a-dc-d9-a2\WpadDecisionReason = "1"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	ce345025577e26843946a5b2456eeada_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ce345025577e26843946a5b2456eeada_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2412
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2764

C:\Users\Admin\AppData\Local\Temp\ce345025577e26843946a5b2456eeada_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\ce345025577e26843946a5b2456eeada_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2840

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
4a3a62770a4450fc64f3c631cd83f315

SHA1
b6150c08074851a7640a8499937b6ff35215ad02

SHA256
af778661599b1d588fe8e0f2418ff904fb36a5c7abd83c3b5cdf38b788793953

SHA512
5335cb8dddc2b1d2db0e67e54e75aebec332ed62752c0bc522e81860f703f162c5d8e05ff5f49e0142fc521e2eda4cea2068b87aaef70245e85e9fb86a312711

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Analysis

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