wannacry | 1490b6377dfb8626749c5c2d86d3180a9e91451962bd9c5f02c7258d8d8479c2

General

Target

2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Size

2.2MB
MD5

aeb614962756632f61e2eb719fbde21c
SHA1

0f59536d0596d433b56d1d9a5d78095ceef9b721
SHA256

1490b6377dfb8626749c5c2d86d3180a9e91451962bd9c5f02c7258d8d8479c2
SHA512

29e4ea7250685b31e5e4deadbcba13d9f317861d4ae3105cdc943d687dc3ce6c61e1c4e8b56e04f6e4227ae6c7430972e083326c24edad3b9ac12384b0f76c36
SSDEEP

6144:eE9l9ynRIYVTH5DgSgNajldktM0XXrCIai62XmfHym0isz6dfJltFxQhfYdz7:e1bLgmluCti62WfSm0iEcQhfY

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3079) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Executes dropped EXE 1 IoCs

Processes:

tasksche.exe

pid process

3536 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 Discovery
T1046

pid	process
3536	tasksche.exe

Drops file in System32 directory 4 IoCs

Processes:

2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe

Drops file in Windows directory 3 IoCs

Processes:

2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exetasksche.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240649562	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe

description	pid	process	target process
PID 1532 wrote to memory of 3536	1532	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe	tasksche.exe
PID 1532 wrote to memory of 3536	1532	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe	tasksche.exe
PID 1532 wrote to memory of 3536	1532	2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe	tasksche.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1532

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:3536

C:\Users\Admin\AppData\Local\Temp\2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-04-01_aeb614962756632f61e2eb719fbde21c_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1372

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=1424 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:8
1⤵
PID:4964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
197f2b7e1b60981326967c0d2fb8bc02

SHA1
c8891c79dc469659938bb4f9c36900e78bd8d092

SHA256
51c47cf0ffa18261b8bd3344cdffcc2888b9543629c1fa46c203a91ecfc0b9ac

SHA512
c39296cb745baba4b147aaadeef6b27cf76e862f2baa88e8bc35b3775d7c7144e759c2023a840cfdf0c9b7312fb53e22af20245cd3c2ac8eed9cd083cbfe495c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads