wannacry | 01ce2c3c8448bae948c37ceeb6e9631805055738b5b94b22dfa8a005ece895c4

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2024 01:51

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General

Target

LisectAVT_2403002C_82.exe
Size

224KB
MD5

75031983cb851f3475c460a40797fe62
SHA1

4ee0238f082123aeb7642ea2e427f57cf4ee954a
SHA256

01ce2c3c8448bae948c37ceeb6e9631805055738b5b94b22dfa8a005ece895c4
SHA512

635b72c7fb8d8b3818364a8a239941d4b4ec608f3d87ee966ce6abd599b847f2aee1e895d996391a1802a57afb41127fbc5e87020b5b280aca2066039e94ca36
SSDEEP

3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/Efc:+5RwTs/dSXj84mRXPemxdBlPvLzLe

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\Word\STARTUP\~SD74F2.tmp	LisectAVT_2403002C_82.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD74EB.tmp	LisectAVT_2403002C_82.exe

Executes dropped EXE 4 IoCs

pid	Process
336	!WannaDecryptor!.exe
3220	!WannaDecryptor!.exe
2776	!WannaDecryptor!.exe
5096	!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\\LisectAVT_2403002C_82.exe\" /r"	LisectAVT_2403002C_82.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-1-5-21-2636447293-1148739154-93880854-1000\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	LisectAVT_2403002C_82.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.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	!WannaDecryptor!.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
2760	taskkill.exe
756	taskkill.exe
2352	taskkill.exe
768	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	768	taskkill.exe
Token: SeDebugPrivilege	2352	taskkill.exe
Token: SeDebugPrivilege	756	taskkill.exe
Token: SeDebugPrivilege	2760	taskkill.exe
Token: SeIncreaseQuotaPrivilege	2444	WMIC.exe
Token: SeSecurityPrivilege	2444	WMIC.exe
Token: SeTakeOwnershipPrivilege	2444	WMIC.exe
Token: SeLoadDriverPrivilege	2444	WMIC.exe
Token: SeSystemProfilePrivilege	2444	WMIC.exe
Token: SeSystemtimePrivilege	2444	WMIC.exe
Token: SeProfSingleProcessPrivilege	2444	WMIC.exe
Token: SeIncBasePriorityPrivilege	2444	WMIC.exe
Token: SeCreatePagefilePrivilege	2444	WMIC.exe
Token: SeBackupPrivilege	2444	WMIC.exe
Token: SeRestorePrivilege	2444	WMIC.exe
Token: SeShutdownPrivilege	2444	WMIC.exe
Token: SeDebugPrivilege	2444	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2444	WMIC.exe
Token: SeRemoteShutdownPrivilege	2444	WMIC.exe
Token: SeUndockPrivilege	2444	WMIC.exe
Token: SeManageVolumePrivilege	2444	WMIC.exe
Token: 33	2444	WMIC.exe
Token: 34	2444	WMIC.exe
Token: 35	2444	WMIC.exe
Token: 36	2444	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2444	WMIC.exe
Token: SeSecurityPrivilege	2444	WMIC.exe
Token: SeTakeOwnershipPrivilege	2444	WMIC.exe
Token: SeLoadDriverPrivilege	2444	WMIC.exe
Token: SeSystemProfilePrivilege	2444	WMIC.exe
Token: SeSystemtimePrivilege	2444	WMIC.exe
Token: SeProfSingleProcessPrivilege	2444	WMIC.exe
Token: SeIncBasePriorityPrivilege	2444	WMIC.exe
Token: SeCreatePagefilePrivilege	2444	WMIC.exe
Token: SeBackupPrivilege	2444	WMIC.exe
Token: SeRestorePrivilege	2444	WMIC.exe
Token: SeShutdownPrivilege	2444	WMIC.exe
Token: SeDebugPrivilege	2444	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2444	WMIC.exe
Token: SeRemoteShutdownPrivilege	2444	WMIC.exe
Token: SeUndockPrivilege	2444	WMIC.exe
Token: SeManageVolumePrivilege	2444	WMIC.exe
Token: 33	2444	WMIC.exe
Token: 34	2444	WMIC.exe
Token: 35	2444	WMIC.exe
Token: 36	2444	WMIC.exe
Token: SeBackupPrivilege	2504	vssvc.exe
Token: SeRestorePrivilege	2504	vssvc.exe
Token: SeAuditPrivilege	2504	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
336	!WannaDecryptor!.exe
336	!WannaDecryptor!.exe
3220	!WannaDecryptor!.exe
3220	!WannaDecryptor!.exe
2776	!WannaDecryptor!.exe
2776	!WannaDecryptor!.exe
5096	!WannaDecryptor!.exe
5096	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 3868	2500	LisectAVT_2403002C_82.exe	84
PID 2500 wrote to memory of 3868	2500	LisectAVT_2403002C_82.exe	84
PID 2500 wrote to memory of 3868	2500	LisectAVT_2403002C_82.exe	84
PID 3868 wrote to memory of 4848	3868	cmd.exe	86
PID 3868 wrote to memory of 4848	3868	cmd.exe	86
PID 3868 wrote to memory of 4848	3868	cmd.exe	86
PID 2500 wrote to memory of 336	2500	LisectAVT_2403002C_82.exe	90
PID 2500 wrote to memory of 336	2500	LisectAVT_2403002C_82.exe	90
PID 2500 wrote to memory of 336	2500	LisectAVT_2403002C_82.exe	90
PID 2500 wrote to memory of 2352	2500	LisectAVT_2403002C_82.exe	91
PID 2500 wrote to memory of 2352	2500	LisectAVT_2403002C_82.exe	91
PID 2500 wrote to memory of 2352	2500	LisectAVT_2403002C_82.exe	91
PID 2500 wrote to memory of 768	2500	LisectAVT_2403002C_82.exe	92
PID 2500 wrote to memory of 768	2500	LisectAVT_2403002C_82.exe	92
PID 2500 wrote to memory of 768	2500	LisectAVT_2403002C_82.exe	92
PID 2500 wrote to memory of 2760	2500	LisectAVT_2403002C_82.exe	93
PID 2500 wrote to memory of 2760	2500	LisectAVT_2403002C_82.exe	93
PID 2500 wrote to memory of 2760	2500	LisectAVT_2403002C_82.exe	93
PID 2500 wrote to memory of 756	2500	LisectAVT_2403002C_82.exe	94
PID 2500 wrote to memory of 756	2500	LisectAVT_2403002C_82.exe	94
PID 2500 wrote to memory of 756	2500	LisectAVT_2403002C_82.exe	94
PID 2500 wrote to memory of 3220	2500	LisectAVT_2403002C_82.exe	105
PID 2500 wrote to memory of 3220	2500	LisectAVT_2403002C_82.exe	105
PID 2500 wrote to memory of 3220	2500	LisectAVT_2403002C_82.exe	105
PID 2500 wrote to memory of 1216	2500	LisectAVT_2403002C_82.exe	106
PID 2500 wrote to memory of 1216	2500	LisectAVT_2403002C_82.exe	106
PID 2500 wrote to memory of 1216	2500	LisectAVT_2403002C_82.exe	106
PID 1216 wrote to memory of 2776	1216	cmd.exe	108
PID 1216 wrote to memory of 2776	1216	cmd.exe	108
PID 1216 wrote to memory of 2776	1216	cmd.exe	108
PID 2500 wrote to memory of 5096	2500	LisectAVT_2403002C_82.exe	112
PID 2500 wrote to memory of 5096	2500	LisectAVT_2403002C_82.exe	112
PID 2500 wrote to memory of 5096	2500	LisectAVT_2403002C_82.exe	112
PID 2776 wrote to memory of 4296	2776	!WannaDecryptor!.exe	113
PID 2776 wrote to memory of 4296	2776	!WannaDecryptor!.exe	113
PID 2776 wrote to memory of 4296	2776	!WannaDecryptor!.exe	113
PID 4296 wrote to memory of 2444	4296	cmd.exe	115
PID 4296 wrote to memory of 2444	4296	cmd.exe	115
PID 4296 wrote to memory of 2444	4296	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\LisectAVT_2403002C_82.exe
"C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002C_82.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 101541721872290.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3868
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4848
- 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:336
- 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:2352
- 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:768
- 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:2760
- 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:756
- 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:3220
- 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:1216
- - 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:2776
  - - 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:4296
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:2444
- 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:5096

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2504

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
c2fe1c66906aa6f88011aa25f1c383df

SHA1
7cf04ef92d65b08bb05d26573c778d529b15383a

SHA256
975dbf0c08b3a227b0f2e93c8d8fa9287b34597017300f3a62c54a493452de41

SHA512
5f73c8ff91c942307318b7fbdbcc420b32b811eeada6f631130afb25fe106989ab783f9c50fdde9fc468a534c3bbdf44280cf9fed9f08b0ea40623278e54ed4c

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

Filesize
136B

MD5
d72db6a49bd7711b6be0994ef1293697

SHA1
79756339e2302a4be60ddf148d72d0b335acd29e

SHA256
795beea9619115c1502dd8f8d2c007a220412060a702f34245666fc1cab4f1d4

SHA512
7652640b6cc6f9c35c3948cd7ab5c03bd56a2350f8e20751c851108f917b58172da4263a271463fa3a6dca9d6be0e971f183bcccffd33ea2daeea862dbcf3e46

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

Filesize
136B

MD5
4ed0d93cfa81c5b4bf1d7c717dc0a492

SHA1
cb803424a3556f6c628e42ed740db5c256c7ace7

SHA256
957f3161698d5c58f784d22747b5ee0faecc2a416c1e34f3304a9677765918f9

SHA512
f9c92e2fa683c4bb818516b3173a8a3d7a2d07770042396a154c0267630c633f8e1a28fc78cc53a1ea296dce99d8d14b750d3c6e906d9d26c078fd62a63a1f86

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

Filesize
136B

MD5
b117fd374845f8cf566a52652de4a7f4

SHA1
d2483e1ea9959786fe4241aef4ca448ac9a07515

SHA256
a73809fc5c302e57c9e714597d0f4829de833235d621306fa731d097afe2b8a1

SHA512
3e6cd511de87f9f4a79e187d6b3d391ec86c1a1f0a17b5beb373dce5ce62df4886f6ff8c963b0e8a51dd9e5bb883b701a0b221ec9f69440fbfbcf5e6b037a22c

Download Submit
C:\Users\Admin\AppData\Local\Temp\101541721872290.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
2747ae2272f59df66f80be722e6f5d57

SHA1
91a4c3ac6b90cf3cea1f73e21c26ebf9a303f0a4

SHA256
40e0df98cc567a938880f0fd0ce6d9c6c44c02d335c182aa9ea2ce7a558bc650

SHA512
0e0bf22f81109273d0cbd3a2af4b6f378fcea3022d9b7c1b486578a5daa7801a36c9355b5d131473584d09337e6426dc132c4a922062581f3cc0bdb2601603f9

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/2500-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads