wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
148s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
13-05-2024 19:07

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General

Target

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.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 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\~SD6607.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD661E.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

pid	Process
4556	!WannaDecryptor!.exe
552	!WannaDecryptor!.exe
3656	!WannaDecryptor!.exe
2888	!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\\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe\" /r"	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.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-1-5-21-4124900551-4068476067-3491212533-1000\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

Kills process with taskkill 4 IoCs

evasion

pid	Process
4612	taskkill.exe
3568	taskkill.exe
4280	taskkill.exe
868	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	868	taskkill.exe
Token: SeDebugPrivilege	4612	taskkill.exe
Token: SeDebugPrivilege	4280	taskkill.exe
Token: SeDebugPrivilege	3568	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4264	WMIC.exe
Token: SeSecurityPrivilege	4264	WMIC.exe
Token: SeTakeOwnershipPrivilege	4264	WMIC.exe
Token: SeLoadDriverPrivilege	4264	WMIC.exe
Token: SeSystemProfilePrivilege	4264	WMIC.exe
Token: SeSystemtimePrivilege	4264	WMIC.exe
Token: SeProfSingleProcessPrivilege	4264	WMIC.exe
Token: SeIncBasePriorityPrivilege	4264	WMIC.exe
Token: SeCreatePagefilePrivilege	4264	WMIC.exe
Token: SeBackupPrivilege	4264	WMIC.exe
Token: SeRestorePrivilege	4264	WMIC.exe
Token: SeShutdownPrivilege	4264	WMIC.exe
Token: SeDebugPrivilege	4264	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4264	WMIC.exe
Token: SeRemoteShutdownPrivilege	4264	WMIC.exe
Token: SeUndockPrivilege	4264	WMIC.exe
Token: SeManageVolumePrivilege	4264	WMIC.exe
Token: 33	4264	WMIC.exe
Token: 34	4264	WMIC.exe
Token: 35	4264	WMIC.exe
Token: 36	4264	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4264	WMIC.exe
Token: SeSecurityPrivilege	4264	WMIC.exe
Token: SeTakeOwnershipPrivilege	4264	WMIC.exe
Token: SeLoadDriverPrivilege	4264	WMIC.exe
Token: SeSystemProfilePrivilege	4264	WMIC.exe
Token: SeSystemtimePrivilege	4264	WMIC.exe
Token: SeProfSingleProcessPrivilege	4264	WMIC.exe
Token: SeIncBasePriorityPrivilege	4264	WMIC.exe
Token: SeCreatePagefilePrivilege	4264	WMIC.exe
Token: SeBackupPrivilege	4264	WMIC.exe
Token: SeRestorePrivilege	4264	WMIC.exe
Token: SeShutdownPrivilege	4264	WMIC.exe
Token: SeDebugPrivilege	4264	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4264	WMIC.exe
Token: SeRemoteShutdownPrivilege	4264	WMIC.exe
Token: SeUndockPrivilege	4264	WMIC.exe
Token: SeManageVolumePrivilege	4264	WMIC.exe
Token: 33	4264	WMIC.exe
Token: 34	4264	WMIC.exe
Token: 35	4264	WMIC.exe
Token: 36	4264	WMIC.exe
Token: SeBackupPrivilege	4840	vssvc.exe
Token: SeRestorePrivilege	4840	vssvc.exe
Token: SeAuditPrivilege	4840	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4556	!WannaDecryptor!.exe
4556	!WannaDecryptor!.exe
552	!WannaDecryptor!.exe
552	!WannaDecryptor!.exe
3656	!WannaDecryptor!.exe
3656	!WannaDecryptor!.exe
2888	!WannaDecryptor!.exe
2888	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1784 wrote to memory of 4048	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	82
PID 1784 wrote to memory of 4048	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	82
PID 1784 wrote to memory of 4048	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	82
PID 4048 wrote to memory of 696	4048	cmd.exe	84
PID 4048 wrote to memory of 696	4048	cmd.exe	84
PID 4048 wrote to memory of 696	4048	cmd.exe	84
PID 1784 wrote to memory of 4556	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 1784 wrote to memory of 4556	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 1784 wrote to memory of 4556	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 1784 wrote to memory of 868	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 1784 wrote to memory of 868	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 1784 wrote to memory of 868	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 1784 wrote to memory of 4280	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 1784 wrote to memory of 4280	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 1784 wrote to memory of 4280	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 1784 wrote to memory of 3568	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 1784 wrote to memory of 3568	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 1784 wrote to memory of 3568	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 1784 wrote to memory of 4612	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 1784 wrote to memory of 4612	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 1784 wrote to memory of 4612	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 1784 wrote to memory of 552	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 1784 wrote to memory of 552	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 1784 wrote to memory of 552	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 1784 wrote to memory of 4244	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	104
PID 1784 wrote to memory of 4244	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	104
PID 1784 wrote to memory of 4244	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	104
PID 4244 wrote to memory of 3656	4244	cmd.exe	106
PID 4244 wrote to memory of 3656	4244	cmd.exe	106
PID 4244 wrote to memory of 3656	4244	cmd.exe	106
PID 1784 wrote to memory of 2888	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	108
PID 1784 wrote to memory of 2888	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	108
PID 1784 wrote to memory of 2888	1784	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	108
PID 3656 wrote to memory of 2964	3656	!WannaDecryptor!.exe	109
PID 3656 wrote to memory of 2964	3656	!WannaDecryptor!.exe	109
PID 3656 wrote to memory of 2964	3656	!WannaDecryptor!.exe	109
PID 2964 wrote to memory of 4264	2964	cmd.exe	111
PID 2964 wrote to memory of 4264	2964	cmd.exe	111
PID 2964 wrote to memory of 4264	2964	cmd.exe	111

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\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
"C:\Users\Admin\AppData\Local\Temp\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1784
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 296541715627240.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4048
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:696
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4556
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:868
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4280
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3568
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4612
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:552
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4244
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3656
  - - 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⤵
      Suspicious use of WriteProcessMemory
      PID:2964
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:4264
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - Suspicious use of SetWindowsHookEx
  PID:2888

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4840

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

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
60a200aa83675aab199dc3e00abf3afb

SHA1
635575ed3dee70c76a0d4130909666633a52f1af

SHA256
e81df8bd8c0d05ad502e252b3b869f6e0690c64872114c9f454af63efe198f04

SHA512
0c4590ef7380dfc399b07f8e2e4dd528c1df581a4398220fc9a8773162ec071e86e52c2c86d587f64877d8aa75fcf3000d72e5acd8ad2799f308a22da540bcc6

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

Filesize
136B

MD5
d27333e46e4819c7bffc7d857144d84f

SHA1
021d93455987fe32a9e5efe8d4aa18049c7dcba1

SHA256
3b45b59e127479e62078ffd8db230fc937f06e09ec20129e0261536a1574e7ae

SHA512
51b02cdfb6f9e4350619cb85b1ea14fffc15dd8b75d165a0f568a8f7575635c8d7adeb0beb316bb164558c1763cfbcffe522b969c56844b49dc6a92e26f68f6e

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

Filesize
136B

MD5
278fc4a6d23a923922dd45058a37f4db

SHA1
9490207081f7eff3c54c4eed79351c14031c9500

SHA256
b2a4f3b0376280a04df8fa9981b0fafe27727aa395f860b1710c566460fab891

SHA512
7891cc5435e89d1c5736e6d4b6cd4d120d2dd6017cc7befb02a27ce6ffae827b8956a49486fc102fa197136396b72822c0b9a2923d9c8621143c7d5b0f9ad6f8

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

Filesize
136B

MD5
3fff79c1c111783e8673184c2669b2f2

SHA1
b72bf8d8b4304a47e07f5e38d516911cf394e942

SHA256
7d4a5bf89be79ac31031920c128a84b7235f8b4e23f5dfeff629eb28b80a87e5

SHA512
d3fd4b3bc35785952b5e066ebf5d46f39f06f2c342abb24133fdd4ea9bfc29ccb258d3fb84c87714654b40636a90a4eae5866e9bedaf63758a84280476a6c207

Download Submit
C:\Users\Admin\AppData\Local\Temp\296541715627240.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
1ae9ab95df5f8987df3f640e8e07931c

SHA1
2c8f405686f8e78e4d6fc5a06d386c983190ef5a

SHA256
9eddfae5b8428e7aa62ad619d313f1750e1cb74cd9b3a4d0f3cd8d884c2c05a0

SHA512
40267c930e72f70cc5f77aa659496a0a6d6bba03ade7a2e89d3833d7a73e05e1340a703722b9850860c8f93b000f6099edb90fc35995c5b4ba8d8698d90f2edf

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/1784-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads