wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
145s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-08-2024 04:14

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General

Target

yourmom.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\~SD9959.tmp	yourmom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD9970.tmp	yourmom.exe

Executes dropped EXE 4 IoCs

pid	Process
2156	!WannaDecryptor!.exe
2880	!WannaDecryptor!.exe
4592	!WannaDecryptor!.exe
1908	!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\\yourmom.exe\" /r"	yourmom.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-1-5-21-1194130065-3471212556-1656947724-1000\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	cscript.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	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	yourmom.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
4524	taskkill.exe
4560	taskkill.exe
3480	taskkill.exe
4376	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	4524	taskkill.exe
Token: SeDebugPrivilege	4376	taskkill.exe
Token: SeDebugPrivilege	4560	taskkill.exe
Token: SeDebugPrivilege	3480	taskkill.exe
Token: SeIncreaseQuotaPrivilege	2116	WMIC.exe
Token: SeSecurityPrivilege	2116	WMIC.exe
Token: SeTakeOwnershipPrivilege	2116	WMIC.exe
Token: SeLoadDriverPrivilege	2116	WMIC.exe
Token: SeSystemProfilePrivilege	2116	WMIC.exe
Token: SeSystemtimePrivilege	2116	WMIC.exe
Token: SeProfSingleProcessPrivilege	2116	WMIC.exe
Token: SeIncBasePriorityPrivilege	2116	WMIC.exe
Token: SeCreatePagefilePrivilege	2116	WMIC.exe
Token: SeBackupPrivilege	2116	WMIC.exe
Token: SeRestorePrivilege	2116	WMIC.exe
Token: SeShutdownPrivilege	2116	WMIC.exe
Token: SeDebugPrivilege	2116	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2116	WMIC.exe
Token: SeRemoteShutdownPrivilege	2116	WMIC.exe
Token: SeUndockPrivilege	2116	WMIC.exe
Token: SeManageVolumePrivilege	2116	WMIC.exe
Token: 33	2116	WMIC.exe
Token: 34	2116	WMIC.exe
Token: 35	2116	WMIC.exe
Token: 36	2116	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2116	WMIC.exe
Token: SeSecurityPrivilege	2116	WMIC.exe
Token: SeTakeOwnershipPrivilege	2116	WMIC.exe
Token: SeLoadDriverPrivilege	2116	WMIC.exe
Token: SeSystemProfilePrivilege	2116	WMIC.exe
Token: SeSystemtimePrivilege	2116	WMIC.exe
Token: SeProfSingleProcessPrivilege	2116	WMIC.exe
Token: SeIncBasePriorityPrivilege	2116	WMIC.exe
Token: SeCreatePagefilePrivilege	2116	WMIC.exe
Token: SeBackupPrivilege	2116	WMIC.exe
Token: SeRestorePrivilege	2116	WMIC.exe
Token: SeShutdownPrivilege	2116	WMIC.exe
Token: SeDebugPrivilege	2116	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2116	WMIC.exe
Token: SeRemoteShutdownPrivilege	2116	WMIC.exe
Token: SeUndockPrivilege	2116	WMIC.exe
Token: SeManageVolumePrivilege	2116	WMIC.exe
Token: 33	2116	WMIC.exe
Token: 34	2116	WMIC.exe
Token: 35	2116	WMIC.exe
Token: 36	2116	WMIC.exe
Token: SeBackupPrivilege	3520	vssvc.exe
Token: SeRestorePrivilege	3520	vssvc.exe
Token: SeAuditPrivilege	3520	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2156	!WannaDecryptor!.exe
2156	!WannaDecryptor!.exe
2880	!WannaDecryptor!.exe
2880	!WannaDecryptor!.exe
4592	!WannaDecryptor!.exe
4592	!WannaDecryptor!.exe
1908	!WannaDecryptor!.exe
1908	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 3280	2860	yourmom.exe	84
PID 2860 wrote to memory of 3280	2860	yourmom.exe	84
PID 2860 wrote to memory of 3280	2860	yourmom.exe	84
PID 3280 wrote to memory of 3372	3280	cmd.exe	86
PID 3280 wrote to memory of 3372	3280	cmd.exe	86
PID 3280 wrote to memory of 3372	3280	cmd.exe	86
PID 2860 wrote to memory of 2156	2860	yourmom.exe	90
PID 2860 wrote to memory of 2156	2860	yourmom.exe	90
PID 2860 wrote to memory of 2156	2860	yourmom.exe	90
PID 2860 wrote to memory of 4560	2860	yourmom.exe	91
PID 2860 wrote to memory of 4560	2860	yourmom.exe	91
PID 2860 wrote to memory of 4560	2860	yourmom.exe	91
PID 2860 wrote to memory of 3480	2860	yourmom.exe	92
PID 2860 wrote to memory of 3480	2860	yourmom.exe	92
PID 2860 wrote to memory of 3480	2860	yourmom.exe	92
PID 2860 wrote to memory of 4524	2860	yourmom.exe	93
PID 2860 wrote to memory of 4524	2860	yourmom.exe	93
PID 2860 wrote to memory of 4524	2860	yourmom.exe	93
PID 2860 wrote to memory of 4376	2860	yourmom.exe	94
PID 2860 wrote to memory of 4376	2860	yourmom.exe	94
PID 2860 wrote to memory of 4376	2860	yourmom.exe	94
PID 2860 wrote to memory of 2880	2860	yourmom.exe	105
PID 2860 wrote to memory of 2880	2860	yourmom.exe	105
PID 2860 wrote to memory of 2880	2860	yourmom.exe	105
PID 2860 wrote to memory of 2304	2860	yourmom.exe	106
PID 2860 wrote to memory of 2304	2860	yourmom.exe	106
PID 2860 wrote to memory of 2304	2860	yourmom.exe	106
PID 2304 wrote to memory of 4592	2304	cmd.exe	108
PID 2304 wrote to memory of 4592	2304	cmd.exe	108
PID 2304 wrote to memory of 4592	2304	cmd.exe	108
PID 2860 wrote to memory of 1908	2860	yourmom.exe	109
PID 2860 wrote to memory of 1908	2860	yourmom.exe	109
PID 2860 wrote to memory of 1908	2860	yourmom.exe	109
PID 4592 wrote to memory of 3392	4592	!WannaDecryptor!.exe	113
PID 4592 wrote to memory of 3392	4592	!WannaDecryptor!.exe	113
PID 4592 wrote to memory of 3392	4592	!WannaDecryptor!.exe	113
PID 3392 wrote to memory of 2116	3392	cmd.exe	115
PID 3392 wrote to memory of 2116	3392	cmd.exe	115
PID 3392 wrote to memory of 2116	3392	cmd.exe	115

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\yourmom.exe
"C:\Users\Admin\AppData\Local\Temp\yourmom.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 106011724991309.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3280
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3372
- 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:2156
- 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:4560
- 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:3480
- 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:4524
- 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:4376
- 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:2880
- 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:2304
- - 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:4592
  - - 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:3392
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:2116
- 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 use of SetWindowsHookEx
  PID:1908

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3520

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
2edef604072e662c9db5448fa62b132e

SHA1
f828fcd203a82cbfd4f73643c56bc64a03fbe6e7

SHA256
72b089edfd603a50afd99a715a4c5f3f6461527051693b187fa0808909853f68

SHA512
c16ee24f35059d2b1750d69348f2eb12d8d16c8d604a7aafcafa8381c52fb6cd2c421a9e0c838500274f14c3f907004d61520bf76fb66bd3e827246603b04bf3

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

Filesize
136B

MD5
8151ed7c01a0c2b24cde5aa54bfb8a09

SHA1
3bd19b406a2c105545b749b4319811958cc8bed2

SHA256
cefa34ef6f60f3719f49e45e2c44735872dae8f381320d3e3d33e9638ca8194a

SHA512
a8a0d7fd7adb34b136a9cf760ab702b7f3c6a90fa4fcdad0792996434e40122e0c942c71eaa2ab25358beb3ab984d9f88a755c0757e5251bc23e3939384fee39

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

Filesize
136B

MD5
cc9e1eb3cad95cb8fbf03940c28ebfad

SHA1
62dcba93dd5e1539138afd158e4f4465e5b3eb29

SHA256
665b7747e7b94b783c1d093fb5b763dd975c2234dd24952c369592f287717388

SHA512
e746ffec934ec3b731063ff245d7c527d61aa986b5bcee66692c8138d6b980e9ab858fb2655f8f004866c20560db57341d4b9455613f621362e475439334cd78

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

Filesize
136B

MD5
255221f0fda502b67f84a7ffbf85f94c

SHA1
0d0632ce5951a95032651f583420e1d2ad60f845

SHA256
59843143a8f1060fa84331c7672a8e67aae7df5c3def6834935b2139181ac2b9

SHA512
655fb810836e5c8ef1982d1007f45478aaf47816ad42d093e34351e18b4b7c563ba8c7da4513de3d89bcccf778c1cd37480551059db558c1cdea7096a777b2ba

Download Submit
C:\Users\Admin\AppData\Local\Temp\106011724991309.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
0f5a8131d12e5aefd6e6033843123701

SHA1
7a47859cddc9c710090983d47c890004e0566cae

SHA256
4752eaceccdc7c76d6e2465beb959699e004969a3cad611d94fdf561f48756ed

SHA512
f9729d3f2c216f548a7cba31f85253c01b8a78ee07b49ead52683fa1803b29d9b8e1da2a7ecdc0ae38dc1e2db6ee0c4895b027cc3673c871287ca13560d7781e

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/2860-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads