wannacry | ab14c3f5741c06ad40632447b2fc10662d151afb32066a507aab4ec866ffd488

Analysis

max time kernel
80s
max time network
81s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
17-12-2022 02:31

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General

Target

Win32.Wannacry.dll
Size

5.0MB
MD5

30fe2f9a048d7a734c8d9233f64810ba
SHA1

2027a053de21bd5c783c3f823ed1d36966780ed4
SHA256

55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
SHA512

b657b02506f768db3255293b0c86452b4dfdd30804629c323aaa9510a3b637b0906e5963179ef7d4aaedc14646f2be2b4292e6584a6c55c6ddb596cff7f20e2a
SSDEEP

49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:+DqPoBhz1aRxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Executes dropped EXE 3 IoCs

pid	Process
3732	mssecsvc.exe
3408	mssecsvc.exe
5080	tasksche.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat	mssecsvc.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	mssecsvc.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	mssecsvc.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	mssecsvc.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	mssecsvc.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\WINDOWS\mssecsvc.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe
File created	C:\Windows\rescache\_merged\4183903823\810424605.pri	taskmgr.exe
File created	C:\Windows\rescache\_merged\1601268389\3877292338.pri	taskmgr.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mssecsvc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	mssecsvc.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4448	taskmgr.exe
Token: SeSystemProfilePrivilege	4448	taskmgr.exe
Token: SeCreateGlobalPrivilege	4448	taskmgr.exe
Token: 33	4448	taskmgr.exe
Token: SeIncBasePriorityPrivilege	4448	taskmgr.exe

Suspicious use of FindShellTrayWindow 55 IoCs

pid	Process
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe

Suspicious use of SendNotifyMessage 55 IoCs

pid	Process
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe
4448	taskmgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 388 wrote to memory of 2144	388	rundll32.exe	66
PID 388 wrote to memory of 2144	388	rundll32.exe	66
PID 388 wrote to memory of 2144	388	rundll32.exe	66
PID 2144 wrote to memory of 3732	2144	rundll32.exe	67
PID 2144 wrote to memory of 3732	2144	rundll32.exe	67
PID 2144 wrote to memory of 3732	2144	rundll32.exe	67

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Win32.Wannacry.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:388
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Win32.Wannacry.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:3732
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:5080

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3408

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Drops file in Windows directory
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4448

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\WINDOWS\mssecsvc.exe

Filesize
3.6MB

MD5
90a1e06d78737b9a87e8ea42f76e2544

SHA1
785ddf8bd3add2da415cbc7c39aab7eb21407d20

SHA256
e1bee0f7a7cd0ac8659033d9e67bfc83ae03843ed30dff8ca590f916604a6de7

SHA512
40ee623eb975b3890d3e8260e76963d078a7734c040d4151fa0cf11fd6e2421f5ea609f67922a51c6df7a09f077087361586d5f40208bc97ee70531e2a3df5be

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
90a1e06d78737b9a87e8ea42f76e2544

SHA1
785ddf8bd3add2da415cbc7c39aab7eb21407d20

SHA256
e1bee0f7a7cd0ac8659033d9e67bfc83ae03843ed30dff8ca590f916604a6de7

SHA512
40ee623eb975b3890d3e8260e76963d078a7734c040d4151fa0cf11fd6e2421f5ea609f67922a51c6df7a09f077087361586d5f40208bc97ee70531e2a3df5be

Download Submit
C:\Windows\mssecsvc.exe

Filesize
3.6MB

MD5
90a1e06d78737b9a87e8ea42f76e2544

SHA1
785ddf8bd3add2da415cbc7c39aab7eb21407d20

SHA256
e1bee0f7a7cd0ac8659033d9e67bfc83ae03843ed30dff8ca590f916604a6de7

SHA512
40ee623eb975b3890d3e8260e76963d078a7734c040d4151fa0cf11fd6e2421f5ea609f67922a51c6df7a09f077087361586d5f40208bc97ee70531e2a3df5be

Download Submit
C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
0df2ae526d7350c2e3d1383c07a6be04

SHA1
06c4d41c60736ea1e0bb1b095536499e05068442

SHA256
10111f53da4181d548ea77cc91f02a15b9ede3f111f074230761f2afee7cd637

SHA512
9ca1ca36dcefdb1eba3152bc2d14c9dceb3360960338d13db5f8a02327aef80cb0ab238c2c1f3d2dbd7fd75124d4199b5cd63f173a09a0dea212ebb265f8453d

Download Submit
memory/2144-150-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-133-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-123-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-122-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-124-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-126-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-125-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-127-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-128-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-129-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-130-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-131-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-132-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-153-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-134-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-135-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-136-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-138-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-137-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-140-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-141-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-139-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-142-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-143-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-144-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-145-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-146-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-147-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-148-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-149-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-154-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-151-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-158-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-121-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-120-0x0000000000000000-mapping.dmp

Download
memory/2144-155-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-156-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-152-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-157-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-159-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-160-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-161-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-162-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-163-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/2144-165-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-167-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-172-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-164-0x0000000000000000-mapping.dmp

Download
memory/3732-180-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-177-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-175-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-176-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-181-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-173-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-168-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-169-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-178-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-170-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-183-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-184-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-185-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-171-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-182-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-187-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-186-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-179-0x00000000772B0000-0x000000007743E000-memory.dmp

Filesize
1.6MB

Download