wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
37s
max time network
35s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23-07-2024 17:35

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General

Target

WannaCry.exe
Size

224KB
MD5

5c7fb0927db37372da25f270708103a2
SHA1

120ed9279d85cbfa56e5b7779ffa7162074f7a29
SHA256

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
SHA512

a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
SSDEEP

3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ

Score

10^/10

wannacry defense_evasion discovery execution impact persistence ransomware spyware stealer worm

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Family

wannacry

Ransom Note

Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �

Wallets

15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDA3F7.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDA3FE.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
372	!WannaDecryptor!.exe
1396	!WannaDecryptor!.exe
3500	!WannaDecryptor!.exe
4596	!WannaDecryptor!.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WannaCry.exe\" /r"	WannaCry.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp"	!WannaDecryptor!.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 14 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WannaCry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
4968	taskkill.exe
3740	taskkill.exe
4584	taskkill.exe
2996	taskkill.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4596	!WannaDecryptor!.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	3740	taskkill.exe
Token: SeDebugPrivilege	4584	taskkill.exe
Token: SeDebugPrivilege	4968	taskkill.exe
Token: SeDebugPrivilege	2996	taskkill.exe
Token: SeIncreaseQuotaPrivilege	2784	WMIC.exe
Token: SeSecurityPrivilege	2784	WMIC.exe
Token: SeTakeOwnershipPrivilege	2784	WMIC.exe
Token: SeLoadDriverPrivilege	2784	WMIC.exe
Token: SeSystemProfilePrivilege	2784	WMIC.exe
Token: SeSystemtimePrivilege	2784	WMIC.exe
Token: SeProfSingleProcessPrivilege	2784	WMIC.exe
Token: SeIncBasePriorityPrivilege	2784	WMIC.exe
Token: SeCreatePagefilePrivilege	2784	WMIC.exe
Token: SeBackupPrivilege	2784	WMIC.exe
Token: SeRestorePrivilege	2784	WMIC.exe
Token: SeShutdownPrivilege	2784	WMIC.exe
Token: SeDebugPrivilege	2784	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2784	WMIC.exe
Token: SeRemoteShutdownPrivilege	2784	WMIC.exe
Token: SeUndockPrivilege	2784	WMIC.exe
Token: SeManageVolumePrivilege	2784	WMIC.exe
Token: 33	2784	WMIC.exe
Token: 34	2784	WMIC.exe
Token: 35	2784	WMIC.exe
Token: 36	2784	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2784	WMIC.exe
Token: SeSecurityPrivilege	2784	WMIC.exe
Token: SeTakeOwnershipPrivilege	2784	WMIC.exe
Token: SeLoadDriverPrivilege	2784	WMIC.exe
Token: SeSystemProfilePrivilege	2784	WMIC.exe
Token: SeSystemtimePrivilege	2784	WMIC.exe
Token: SeProfSingleProcessPrivilege	2784	WMIC.exe
Token: SeIncBasePriorityPrivilege	2784	WMIC.exe
Token: SeCreatePagefilePrivilege	2784	WMIC.exe
Token: SeBackupPrivilege	2784	WMIC.exe
Token: SeRestorePrivilege	2784	WMIC.exe
Token: SeShutdownPrivilege	2784	WMIC.exe
Token: SeDebugPrivilege	2784	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2784	WMIC.exe
Token: SeRemoteShutdownPrivilege	2784	WMIC.exe
Token: SeUndockPrivilege	2784	WMIC.exe
Token: SeManageVolumePrivilege	2784	WMIC.exe
Token: 33	2784	WMIC.exe
Token: 34	2784	WMIC.exe
Token: 35	2784	WMIC.exe
Token: 36	2784	WMIC.exe
Token: SeBackupPrivilege	4128	vssvc.exe
Token: SeRestorePrivilege	4128	vssvc.exe
Token: SeAuditPrivilege	4128	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
372	!WannaDecryptor!.exe
372	!WannaDecryptor!.exe
1396	!WannaDecryptor!.exe
1396	!WannaDecryptor!.exe
3500	!WannaDecryptor!.exe
3500	!WannaDecryptor!.exe
4596	!WannaDecryptor!.exe
4596	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4600 wrote to memory of 2496	4600	WannaCry.exe	84
PID 4600 wrote to memory of 2496	4600	WannaCry.exe	84
PID 4600 wrote to memory of 2496	4600	WannaCry.exe	84
PID 2496 wrote to memory of 1072	2496	cmd.exe	86
PID 2496 wrote to memory of 1072	2496	cmd.exe	86
PID 2496 wrote to memory of 1072	2496	cmd.exe	86
PID 4600 wrote to memory of 372	4600	WannaCry.exe	91
PID 4600 wrote to memory of 372	4600	WannaCry.exe	91
PID 4600 wrote to memory of 372	4600	WannaCry.exe	91
PID 4600 wrote to memory of 4968	4600	WannaCry.exe	92
PID 4600 wrote to memory of 4968	4600	WannaCry.exe	92
PID 4600 wrote to memory of 4968	4600	WannaCry.exe	92
PID 4600 wrote to memory of 3740	4600	WannaCry.exe	93
PID 4600 wrote to memory of 3740	4600	WannaCry.exe	93
PID 4600 wrote to memory of 3740	4600	WannaCry.exe	93
PID 4600 wrote to memory of 4584	4600	WannaCry.exe	94
PID 4600 wrote to memory of 4584	4600	WannaCry.exe	94
PID 4600 wrote to memory of 4584	4600	WannaCry.exe	94
PID 4600 wrote to memory of 2996	4600	WannaCry.exe	95
PID 4600 wrote to memory of 2996	4600	WannaCry.exe	95
PID 4600 wrote to memory of 2996	4600	WannaCry.exe	95
PID 4600 wrote to memory of 1396	4600	WannaCry.exe	109
PID 4600 wrote to memory of 1396	4600	WannaCry.exe	109
PID 4600 wrote to memory of 1396	4600	WannaCry.exe	109
PID 4600 wrote to memory of 412	4600	WannaCry.exe	110
PID 4600 wrote to memory of 412	4600	WannaCry.exe	110
PID 4600 wrote to memory of 412	4600	WannaCry.exe	110
PID 412 wrote to memory of 3500	412	cmd.exe	112
PID 412 wrote to memory of 3500	412	cmd.exe	112
PID 412 wrote to memory of 3500	412	cmd.exe	112
PID 4600 wrote to memory of 4596	4600	WannaCry.exe	114
PID 4600 wrote to memory of 4596	4600	WannaCry.exe	114
PID 4600 wrote to memory of 4596	4600	WannaCry.exe	114
PID 3500 wrote to memory of 1796	3500	!WannaDecryptor!.exe	115
PID 3500 wrote to memory of 1796	3500	!WannaDecryptor!.exe	115
PID 3500 wrote to memory of 1796	3500	!WannaDecryptor!.exe	115
PID 1796 wrote to memory of 2784	1796	cmd.exe	117
PID 1796 wrote to memory of 2784	1796	cmd.exe	117
PID 1796 wrote to memory of 2784	1796	cmd.exe	117

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\WannaCry.exe
"C:\Users\Admin\AppData\Local\Temp\WannaCry.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4600
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 180001721756131.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1072
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:372
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4968
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3740
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4584
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2996
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1396
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:412
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3500
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1796
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:2784
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:4596

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\!Please Read Me!.txt
1⤵
PID:3820

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

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Downloads

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Filesize
797B

MD5
afa18cf4aa2660392111763fb93a8c3d

SHA1
c219a3654a5f41ce535a09f2a188a464c3f5baf5

SHA256
227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

SHA512
4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk

Filesize
1KB

MD5
7854033b066c8038e889c90bdfd7e3fe

SHA1
90365e8a7cf3d81365cba7986e207384401726f6

SHA256
1a0f88f5f6798c35630123761bcdd99e894e4865125db51a262f3c52010158a9

SHA512
3db05eada1dc205578b3cfc85c38e6a593c9f1c127fe8768955f22f7ffe2e1d9126eaf9b360898ba55ef5a33c119da2d796d044a262660a0d4729b8455e91937

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
34615a8b017eb4f63e90202255da5bdb

SHA1
777d12e3bbd723f2f4884783dde4db0409f79736

SHA256
f4f0aff988041207069b785d67ad739a100e02bcf08f0ea6915cf9de8fd212df

SHA512
72808c5ceea2d0fd28dcb50e39668293dd220b8afc648fa013f3ece4fda14da55797eb9a2d27de0f0669137ec94b5bec8de7bfa961bdf06672e104d48b1a799d

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
85785ae8e14326f8069f383ae4e5d72a

SHA1
5f010e982a725f7aad21e3e6ce4ccd4506d53c79

SHA256
25bf754a9dc51c2bdef8cf05e5462a048b08dc1915a1028dfe8744422d8be9b7

SHA512
6e26ff540c2a8958bbbb28d6e85a063334c9e2c8adff8e85c6e51f65e380fd9be21c1ab056ea96d2c90423108f3b761dd67c13b1f1a703da8e791e693f624449

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
d408c99018df0bb0cc712fc3826d606c

SHA1
ef12bfcd618c2b4fed2c1a762b16ad59f4c0f986

SHA256
3faa42a1ca47d4c9df58a334446ed4409451d48b790285f841142241c780660d

SHA512
becf5500c0123f59d931670b558be6c77063260e122aa6905cfb74ae71029971ab2514da7800495c4c084cf171b9fa0699364cf1ea3c02a53f0d7e23048c0519

Download Submit
C:\Users\Admin\AppData\Local\Temp\180001721756131.bat

Filesize
336B

MD5
3540e056349c6972905dc9706cd49418

SHA1
492c20442d34d45a6d6790c720349b11ec591cde

SHA256
73872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc

SHA512
c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.vbs

Filesize
219B

MD5
5f6d40ca3c34b470113ed04d06a88ff4

SHA1
50629e7211ae43e32060686d6be17ebd492fd7aa

SHA256
0fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1

SHA512
4d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.wry

Filesize
628B

MD5
7d2c6f042ebcbbfa3ff3400ad5df96f0

SHA1
09ce5cf6689aa99d6d6bd19c4cbeecb0dbae226c

SHA256
a5256b81e9cdd2c7bb745574a956d1d15212211a69026a0deaded6ed5977ee7d

SHA512
0b3e107b8421877a41aab9dfa0c9bab055e217e1b1425b07c7613b5f45d5bce0f0b1fca4520465490a7813fb7040c8f07ea620b02eedaffc37e7ce8b432d1139

Download Submit
C:\Users\Admin\AppData\Local\Temp\m.wry

Filesize
42KB

MD5
980b08bac152aff3f9b0136b616affa5

SHA1
2a9c9601ea038f790cc29379c79407356a3d25a3

SHA256
402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

SHA512
100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

Download Submit
C:\Users\Admin\AppData\Local\Temp\u.wry

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
memory/4600-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads