clop | 6b3fbf3c740886abe83f02b354e1243054307b2037b452e2d5afc405cbbb99a9

General

Target

clop.exe
Size

100KB
MD5

8752a7a052ba75239b86b0da1d483dd7
SHA1

6eeef883d209d02a05ae9e6a2f37c6cbf69f4d89
SHA256

3320f11728458d01eef62e10e48897ec1c2277c1fe1aa2d471a16b4dccfc1207
SHA512

57d19e9254ecaeaf301e11598c88b1440f3f85baf0cb8d7a0ac952cd6d63f565df9809b13f50a059302bfb0f81a5c498e49837e2e9480ec9b51c14a409fbdb65
SSDEEP

1536:gHIPkRUedYttp2bd/B8quuaOY2IfpW+VQJFsW69cdCeRk28+axHPjsb5:EYtLqJSquu42CW+VwisCgk2DaxHPj+5

Score

10^/10

clop discovery ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\ClopReadMe.txt

Family

clop

Ransom Note

Your network has been penetrated. All files on each host in the network have been encrypted with a strong algorithm. Backups were either encrypted or deleted or backup disks were formatted. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. We exclusively have decryption software for your situation No decryption software is available in the public. DO NOT RESET OR SHUTDOWN – files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. This may lead to the impossibility of recovery of the certain files. Photorec, RannohDecryptor etc. repair tools are useless and can destroy your files irreversibly. If you want to restore your files write to emails (contacts are at the bottom of the sheet) and attach 2-3 encrypted files (Less than 5 Mb each, non-archived and your files should not contain valuable information (Databases, backups, large excel sheets, etc.)). You will receive decrypted samples and our conditions how to get the decoder. Attention!!! Your warranty - decrypted samples. Do not rename encrypted files. Do not try to decrypt your data using third party software. We don`t need your files and your information. But after 2 weeks all your files and keys will be deleted automatically. Contact emails: [email protected] or [email protected] The final price depends on how fast you write to us. Clop

Emails

[email protected]

Signatures

clop
Ransomware discovered in early 2019 which has been actively developed since release.
ransomware clop
Renames multiple (248) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops desktop.ini file(s) 24 IoCs

Processes:

clop.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\OneDrive\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	clop.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	clop.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	clop.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	clop.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	clop.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	clop.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	clop.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1453213197-474736321-1741884505-1000\desktop.ini	clop.exe
File opened for modification	C:\$Recycle.Bin\S-1-5-21-1453213197-474736321-1741884505-1000\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	clop.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	clop.exe
File opened for modification	C:\Users\Public\desktop.ini	clop.exe
File opened for modification	C:\Users\Public\AccountPictures\desktop.ini	clop.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

clop.exe

description	ioc	process
File opened (read-only)	\??\W:	clop.exe
File opened (read-only)	\??\G:	clop.exe
File opened (read-only)	\??\I:	clop.exe
File opened (read-only)	\??\M:	clop.exe
File opened (read-only)	\??\O:	clop.exe
File opened (read-only)	\??\Q:	clop.exe
File opened (read-only)	\??\U:	clop.exe
File opened (read-only)	\??\V:	clop.exe
File opened (read-only)	\??\Y:	clop.exe
File opened (read-only)	\??\J:	clop.exe
File opened (read-only)	\??\T:	clop.exe
File opened (read-only)	\??\X:	clop.exe
File opened (read-only)	\??\A:	clop.exe
File opened (read-only)	\??\E:	clop.exe
File opened (read-only)	\??\K:	clop.exe
File opened (read-only)	\??\L:	clop.exe
File opened (read-only)	\??\N:	clop.exe
File opened (read-only)	\??\P:	clop.exe
File opened (read-only)	\??\S:	clop.exe
File opened (read-only)	\??\B:	clop.exe
File opened (read-only)	\??\H:	clop.exe
File opened (read-only)	\??\R:	clop.exe
File opened (read-only)	\??\Z:	clop.exe

Drops file in Program Files directory 2 IoCs

Processes:

clop.exe

description	ioc	process
File opened for modification	C:\Program Files\ClopReadMe.txt	clop.exe
File opened for modification	C:\Program Files (x86)\ClopReadMe.txt	clop.exe

Drops file in Windows directory 1 IoCs

Processes:

clop.exe

description ioc process

File opened for modification C:\Windows\ClopReadMe.txt clop.exe
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

clop.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language clop.exe

description	ioc	process
File opened for modification	C:\Windows\ClopReadMe.txt	clop.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	clop.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

clop.exe

pid	process
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe
1572	clop.exe

C:\Users\Admin\AppData\Local\Temp\clop.exe
"C:\Users\Admin\AppData\Local\Temp\clop.exe"
1⤵
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\$Recycle.Bin\ClopReadMe.txt

Filesize
1KB

MD5
da76cdbc83863176e9da51b1c9224139

SHA1
fc71801db718efd836c93b6b95dceaa155050290

SHA256
e79dfc0bbdefca3815ffb349139a512e7090403a1e4d80414b97b3e567c7c1ad

SHA512
58227520b3815a68695e4d80882166d0b6f2fd907b9f6a503acb843769ebc3aa836e5d4af5b9c5896c06543cc3757bd23f6f0c96e69a4cd25163dcc65c915e29

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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