7272457bac023e7ab635fc3d82212a89918de36d5433dd389e6151805e47b0cd

General

Target

mod_c.exe
Size

1.8MB
MD5

be4c5e4713009e5446ee042ba7c33fe0
SHA1

f8e52380b6f3668d4de6df416c8da389c0d98fe8
SHA256

7272457bac023e7ab635fc3d82212a89918de36d5433dd389e6151805e47b0cd
SHA512

96612ab271e5adbfc911d65abc5ed56973d3539ff98c10e13daac782dcbfa43606ed89fa8efa0b203fd000cbbf76fea04d3844723c9dc075ba9a4fe55cb78e4d

Score

10^/10

cryptone packer ransomware

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\HOW-TO-DECRYPT-dvxr9.txt

Ransom Note

[+] What happened? [+] Your files are encrypted, and currently unavailable. You can check it: all files on you computer has extension *.dvxr9 By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant get back your data (NEVER). [+] What guarantees? [+] Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests. To check the ability of returning files, You should go to our website. There you can decrypt one file for free. That is our guarantee. If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause just we have the private key. In practice - time is much more valuable than money. [+] How to get access on website? [+] Using a TOR browser! - Download and install TOR browser from this site: https://torproject.org/ - Open our website: http://o76s3m7l5ogig4u5.onion - Follow the on-screen instructions Extension name: *.dvxr9 ----------------------------------------------------------------------------------------- !!! DANGER !!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damge of the private key and, as result, The Loss all data. !!! !!! !!! ONE MORE TIME: Its in your interests to get your files back. From our side, we (the best specialists) will make everything possible for restoring, but please do not interfere.��

URLs

http://o76s3m7l5ogig4u5.onion

Signatures

CryptOne packer 4 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\MediaDial\Draw	cryptone
C:\Users\Admin\AppData\Roaming\MediaDial\Draw	cryptone
\Users\Admin\AppData\Roaming\MediaDial\Draw	cryptone
C:\Users\Admin\AppData\Roaming\MediaDial\Draw	cryptone

Executes dropped EXE 1 IoCs

Processes:

Draw

pid process

1992 Draw

pid	process
1992	Draw

Modifies extensions of user files 12 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

Draw

description	ioc	process
File renamed	C:\Users\Admin\Pictures\ExpandJoin.raw => C:\Users\Admin\Pictures\ExpandJoin.raw.dvxr9	Draw
File renamed	C:\Users\Admin\Pictures\AddRegister.crw => C:\Users\Admin\Pictures\AddRegister.crw.dvxr9	Draw
File renamed	C:\Users\Admin\Pictures\ApproveEnable.tif => C:\Users\Admin\Pictures\ApproveEnable.tif.dvxr9	Draw
File opened for modification	C:\Users\Admin\Pictures\ApproveEnable.tif.dvxr9	Draw
File opened for modification	C:\Users\Admin\Pictures\GrantCompress.tiff.dvxr9	Draw
File renamed	C:\Users\Admin\Pictures\LimitUpdate.tif => C:\Users\Admin\Pictures\LimitUpdate.tif.dvxr9	Draw
File opened for modification	C:\Users\Admin\Pictures\LimitUpdate.tif.dvxr9	Draw
File renamed	C:\Users\Admin\Pictures\RegisterLimit.tiff => C:\Users\Admin\Pictures\RegisterLimit.tiff.dvxr9	Draw
File opened for modification	C:\Users\Admin\Pictures\RegisterLimit.tiff.dvxr9	Draw
File opened for modification	C:\Users\Admin\Pictures\AddRegister.crw.dvxr9	Draw
File opened for modification	C:\Users\Admin\Pictures\ExpandJoin.raw.dvxr9	Draw
File renamed	C:\Users\Admin\Pictures\GrantCompress.tiff => C:\Users\Admin\Pictures\GrantCompress.tiff.dvxr9	Draw

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

608 cmd.exe
Loads dropped DLL 2 IoCs

Processes:

mod_c.exe

pid process

1832 mod_c.exe
1832 mod_c.exe

pid	process
608	cmd.exe

pid	process
1832	mod_c.exe
1832	mod_c.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

mod_c.exeDrawcmd.execmd.exe

description	pid	process	target process
PID 1832 wrote to memory of 1992	1832	mod_c.exe	Draw
PID 1832 wrote to memory of 1992	1832	mod_c.exe	Draw
PID 1832 wrote to memory of 1992	1832	mod_c.exe	Draw
PID 1992 wrote to memory of 1660	1992	Draw	cmd.exe
PID 1992 wrote to memory of 1660	1992	Draw	cmd.exe
PID 1992 wrote to memory of 1660	1992	Draw	cmd.exe
PID 1832 wrote to memory of 608	1832	mod_c.exe	cmd.exe
PID 1832 wrote to memory of 608	1832	mod_c.exe	cmd.exe
PID 1832 wrote to memory of 608	1832	mod_c.exe	cmd.exe
PID 1660 wrote to memory of 996	1660	cmd.exe	waitfor.exe
PID 1660 wrote to memory of 996	1660	cmd.exe	waitfor.exe
PID 1660 wrote to memory of 996	1660	cmd.exe	waitfor.exe
PID 608 wrote to memory of 1724	608	cmd.exe	waitfor.exe
PID 608 wrote to memory of 1724	608	cmd.exe	waitfor.exe
PID 608 wrote to memory of 1724	608	cmd.exe	waitfor.exe
PID 608 wrote to memory of 1708	608	cmd.exe	attrib.exe
PID 608 wrote to memory of 1708	608	cmd.exe	attrib.exe
PID 608 wrote to memory of 1708	608	cmd.exe	attrib.exe
PID 1660 wrote to memory of 1544	1660	cmd.exe	attrib.exe
PID 1660 wrote to memory of 1544	1660	cmd.exe	attrib.exe
PID 1660 wrote to memory of 1544	1660	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1708 attrib.exe
1544 attrib.exe

pid	process
1708	attrib.exe
1544	attrib.exe

C:\Users\Admin\AppData\Local\Temp\mod_c.exe
"C:\Users\Admin\AppData\Local\Temp\mod_c.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1832

C:\Users\Admin\AppData\Roaming\MediaDial\Draw
C:\Users\Admin\AppData\Roaming\MediaDial\Draw /go
2⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:1992

C:\Windows\system32\cmd.exe
cmd /c waitfor /t 10 pause /d y & attrib -h "C:\Users\Admin\AppData\Roaming\MediaDial\Draw" & del "C:\Users\Admin\AppData\Roaming\MediaDial\Draw" & rd "C:\Users\Admin\AppData\Roaming\MediaDial\"
3⤵
- Suspicious use of WriteProcessMemory
PID:1660

C:\Windows\system32\waitfor.exe
waitfor /t 10 pause /d y
4⤵
PID:996

C:\Windows\system32\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\MediaDial\Draw"
4⤵
- Views/modifies file attributes
PID:1544

C:\Windows\system32\cmd.exe
cmd /c waitfor /t 10 pause /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\mod_c.exe" & del "C:\Users\Admin\AppData\Local\Temp\mod_c.exe" & rd "C:\Users\Admin\AppData\Local\Temp\"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:608

C:\Windows\system32\waitfor.exe
waitfor /t 10 pause /d y
3⤵
PID:1724

C:\Windows\system32\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\mod_c.exe"
3⤵
- Views/modifies file attributes
PID:1708

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\MediaDial\Draw
MD5
be4c5e4713009e5446ee042ba7c33fe0

SHA1
f8e52380b6f3668d4de6df416c8da389c0d98fe8

SHA256
7272457bac023e7ab635fc3d82212a89918de36d5433dd389e6151805e47b0cd

SHA512
96612ab271e5adbfc911d65abc5ed56973d3539ff98c10e13daac782dcbfa43606ed89fa8efa0b203fd000cbbf76fea04d3844723c9dc075ba9a4fe55cb78e4d

Download Submit
C:\Users\Admin\AppData\Roaming\MediaDial\Draw
MD5
be4c5e4713009e5446ee042ba7c33fe0

SHA1
f8e52380b6f3668d4de6df416c8da389c0d98fe8

SHA256
7272457bac023e7ab635fc3d82212a89918de36d5433dd389e6151805e47b0cd

SHA512
96612ab271e5adbfc911d65abc5ed56973d3539ff98c10e13daac782dcbfa43606ed89fa8efa0b203fd000cbbf76fea04d3844723c9dc075ba9a4fe55cb78e4d

Download Submit
\Users\Admin\AppData\Roaming\MediaDial\Draw
MD5
be4c5e4713009e5446ee042ba7c33fe0

SHA1
f8e52380b6f3668d4de6df416c8da389c0d98fe8

SHA256
7272457bac023e7ab635fc3d82212a89918de36d5433dd389e6151805e47b0cd

SHA512
96612ab271e5adbfc911d65abc5ed56973d3539ff98c10e13daac782dcbfa43606ed89fa8efa0b203fd000cbbf76fea04d3844723c9dc075ba9a4fe55cb78e4d

Download Submit
\Users\Admin\AppData\Roaming\MediaDial\Draw
MD5
be4c5e4713009e5446ee042ba7c33fe0

SHA1
f8e52380b6f3668d4de6df416c8da389c0d98fe8

SHA256
7272457bac023e7ab635fc3d82212a89918de36d5433dd389e6151805e47b0cd

SHA512
96612ab271e5adbfc911d65abc5ed56973d3539ff98c10e13daac782dcbfa43606ed89fa8efa0b203fd000cbbf76fea04d3844723c9dc075ba9a4fe55cb78e4d

Download Submit
memory/608-9-0x0000000000000000-mapping.dmp

Download
memory/996-10-0x0000000000000000-mapping.dmp

Download
memory/1544-13-0x0000000000000000-mapping.dmp

Download
memory/1660-8-0x0000000000000000-mapping.dmp

Download
memory/1708-12-0x0000000000000000-mapping.dmp

Download
memory/1724-11-0x0000000000000000-mapping.dmp

Download
memory/1832-6-0x0000000001D50000-0x0000000001F14000-memory.dmp

Filesize
1.8MB

Download
memory/1992-4-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads