wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
158s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/05/2024, 03:10

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General

Target
be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
Size 224KB
Sample240511-dn1aeacg72
SHA256 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
MD5 5c7fb0927db37372da25f270708103a2
SHA1 120ed9279d85cbfa56e5b7779ffa7162074f7a29
SHA512 a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
SSDEEP 3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry persistence ransomware spyware stealer worm

Malware Config

Extracted

Path

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

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

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD1C79.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD1E83.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 1 IoCs

pid	Process
4088	!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

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
3032	taskkill.exe
3632	taskkill.exe
1548	taskkill.exe
3948	taskkill.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	taskkill.exe
Token: SeDebugPrivilege	3948	taskkill.exe
Token: SeDebugPrivilege	1548	taskkill.exe
Token: SeDebugPrivilege	3632	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4088	!WannaDecryptor!.exe
4088	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4136 wrote to memory of 3784	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 4136 wrote to memory of 3784	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 4136 wrote to memory of 3784	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 3784 wrote to memory of 2204	3784	cmd.exe	94
PID 3784 wrote to memory of 2204	3784	cmd.exe	94
PID 3784 wrote to memory of 2204	3784	cmd.exe	94
PID 4136 wrote to memory of 4088	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	97
PID 4136 wrote to memory of 4088	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	97
PID 4136 wrote to memory of 4088	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	97
PID 4136 wrote to memory of 3948	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	99
PID 4136 wrote to memory of 3948	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	99
PID 4136 wrote to memory of 3948	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	99
PID 4136 wrote to memory of 3032	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	100
PID 4136 wrote to memory of 3032	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	100
PID 4136 wrote to memory of 3032	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	100
PID 4136 wrote to memory of 1548	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	101
PID 4136 wrote to memory of 1548	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	101
PID 4136 wrote to memory of 1548	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	101
PID 4136 wrote to memory of 3632	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	102
PID 4136 wrote to memory of 3632	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	102
PID 4136 wrote to memory of 3632	4136	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	102

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:4136
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 239711715397040.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3784
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:2204
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4088
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3948
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3032
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1548
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3632

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4612 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:8
1⤵
PID:1352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

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Downloads

!Please Read Me!.txt

Path C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt
Size 797B
SHA256 227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
MD5 afa18cf4aa2660392111763fb93a8c3d
SHA1 c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA512 4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
MD5 SHA1 SHA512

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!WannaDecryptor!.exe

Path C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
Size 236KB
SHA256 78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
MD5 cf1416074cd7791ab80a18f9e7e219d9
SHA1 276d2ec82c518d887a8a3608e51c56fa28716ded
SHA512 0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
SSDEEP 3072:KeJJ0eIVAnbWOECR+uJ/0EJzBelG4t1nXFnQamKNQHFZde5tHEGaa:bqrVOEgZJcYelG4tQamKN2ex
MD5 SHA1 SHA512 SSDEEP

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!WannaDecryptor!.exe.lnk

Path C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk
Size 1KB
SHA256 2d9e74339e9b400b244a76ca7c042409b08de5c38410931fd6efcbd0372ee7b1
MD5 2291894c893ae75d27428d7bdf4c3fb5
SHA1 b854827f021aef1eb8ad1e752b72597c56b5aa08
SHA512 f26802df468ee2699d158dfbc7de9929d5a19634f773b3337f23dca54181dc00f70073dc7dac496d88e6a208b0f6c68e07c31256f419db40380f9622a659b443
MD5 SHA1 SHA512

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00000000.res

Path C:\Users\Admin\AppData\Local\Temp\00000000.res
Size 136B
SHA256 ce310689d64ed0d6f9e218fd93fd817090a0310c8f198c60d5b1dcc152f087e3
MD5 40a9a3a2c1fa8a605f78341d3d5e59ed
SHA1 31e69007e0d010ca71f97806cc8e679210051e51
SHA512 cf13e2d47acdb7b9febcaaa7bf6a3df487f70507f6a655cb2666720744dbf407a2bd9de741f1f016c9a05363e6266f2ce95aae9027ef0340a78f361d07b7a9c3
MD5 SHA1 SHA512

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00000000.res

Path C:\Users\Admin\AppData\Local\Temp\00000000.res
Size 136B
SHA256 e47de01fcc5b6e67d78ac263863112a76fbc7b4b67e99c811244e043b7990455
MD5 9727c9ce0b964c12a492725a5b171c9e
SHA1 c28eeb0ce48e4d7b0210605d64e32fcb84676dc9
SHA512 7c167ada2a7bb217fa6bd884609b0351f0bdaca35b0da0e3a9a7f65af236b1a0df24cd917c1bd82fd7fc03ba495d05df42790b13b37ce1b94da43c703b24adb0
MD5 SHA1 SHA512

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239711715397040.bat

Path C:\Users\Admin\AppData\Local\Temp\239711715397040.bat
Size 336B
SHA256 73872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc
MD5 3540e056349c6972905dc9706cd49418
SHA1 492c20442d34d45a6d6790c720349b11ec591cde
SHA512 c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c
MD5 SHA1 SHA512

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c.vbs

Path C:\Users\Admin\AppData\Local\Temp\c.vbs
Size 219B
SHA256 0fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1
MD5 5f6d40ca3c34b470113ed04d06a88ff4
SHA1 50629e7211ae43e32060686d6be17ebd492fd7aa
SHA512 4d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35
MD5 SHA1 SHA512

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c.wry

Path C:\Users\Admin\AppData\Local\Temp\c.wry
Size 628B
SHA256 18acbda7ae2bc6b0ba0b6cec4e5bfa2bacee463617048b14392b4c050585fa71
MD5 4ea45d913319a8647e4c72d1370cfa28
SHA1 3194927b2d60211f98c835a94e5591b9755845f9
SHA512 616a68a5bf2dae99947bcf7e63187c01fdd1f4150aad7de26a5de86b9e4134ace2ea5f402f473bb7fb85719f7a5912fe131ff8ee289c0e9ac03d7e82d93c2afe
MD5 SHA1 SHA512

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memory/4136-6-0x0000000010000000-0x0000000010012000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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