wannacry | 51c5225c4bf368296754697e310f1583300b5e85748be40dca5ff5647df4f8dc

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2022, 19:55

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General

Target
3df6e06d7f6270903dda0e9e0da7ff6e.dll
Size 5.0MB
Sample220908-ym3z5acghk
SHA256 51c5225c4bf368296754697e310f1583300b5e85748be40dca5ff5647df4f8dc
MD5 3df6e06d7f6270903dda0e9e0da7ff6e
SHA1 29dcb3b3b9f9e5f6679ba6fa32531d4d92f567fb
SHA512 0cf97a1361b5b73569c4497958091b298c2c29c85ad734078165fbe0cb86c9776bd33463dbd7ecda8d147544d771b1ca6b8751bfc8135cb70eb257f211de3e94
SSDEEP 49152:snjQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SA:M8qPoBhz1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3301) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046

Executes dropped EXE 3 IoCs

pid	Process
2184	mssecsvc.exe
2108	mssecsvc.exe
4092	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\mssecsvc.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 1368	4952	rundll32.exe	84
PID 4952 wrote to memory of 1368	4952	rundll32.exe	84
PID 4952 wrote to memory of 1368	4952	rundll32.exe	84
PID 1368 wrote to memory of 2184	1368	rundll32.exe	85
PID 1368 wrote to memory of 2184	1368	rundll32.exe	85
PID 1368 wrote to memory of 2184	1368	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3df6e06d7f6270903dda0e9e0da7ff6e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3df6e06d7f6270903dda0e9e0da7ff6e.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:1368
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:2184
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:4092

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
PID:2108

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

mssecsvc.exe

Path C:\WINDOWS\mssecsvc.exe
Size 3.6MB
SHA256 eca5e284a55c0b83ce4ae7eccbd54632775ab02ed34c8456459612721ddba9d7
MD5 83b00f6b894ff7bb0f087fb29d940ae0
SHA1 b11684cfcb4f81a5997a1e67444f38e4de06a342
SHA512 c319e4eb06b67eda1bc06c8c5e0146d8b8866b04180e37ae72e7642befc0cc0cd641297e990fa1657fc7d26a55c78ce5325deb2cd958de02e7980c23e6121f1e
SSDEEP 49152:NnjQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SA:B8qPoBhz1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 eca5e284a55c0b83ce4ae7eccbd54632775ab02ed34c8456459612721ddba9d7
MD5 83b00f6b894ff7bb0f087fb29d940ae0
SHA1 b11684cfcb4f81a5997a1e67444f38e4de06a342
SHA512 c319e4eb06b67eda1bc06c8c5e0146d8b8866b04180e37ae72e7642befc0cc0cd641297e990fa1657fc7d26a55c78ce5325deb2cd958de02e7980c23e6121f1e
SSDEEP 49152:NnjQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SA:B8qPoBhz1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

Submit Download

mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 eca5e284a55c0b83ce4ae7eccbd54632775ab02ed34c8456459612721ddba9d7
MD5 83b00f6b894ff7bb0f087fb29d940ae0
SHA1 b11684cfcb4f81a5997a1e67444f38e4de06a342
SHA512 c319e4eb06b67eda1bc06c8c5e0146d8b8866b04180e37ae72e7642befc0cc0cd641297e990fa1657fc7d26a55c78ce5325deb2cd958de02e7980c23e6121f1e
SSDEEP 49152:NnjQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SA:B8qPoBhz1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

Submit Download

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 71431f1a52800c3b1c0f6e7de9241089e0864d1e059b89504a15c3d2565bde66
MD5 d2deffafa88eed37f5263b395767fd0b
SHA1 cf96cad2f905f022e59d1345fe211984dae32321
SHA512 832d7bf0ba6425e265cf7e203ae4facfce4a19e07353fd69d036c557f1b1561a29dea4abc1fce0032bdd8b6cc97cd3fb7fbe0d2684d8df0edb2fb6b5dfbe4b25
SSDEEP 49152:nQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SA:QqPoBhz1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

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memory/2108-140-0x0000000000400000-0x0000000000A72000-memory.dmp

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memory/2108-141-0x0000000000400000-0x0000000000A72000-memory.dmp

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memory/2184-136-0x0000000000400000-0x0000000000A72000-memory.dmp

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memory/2184-139-0x0000000000400000-0x0000000000A72000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads