djvu | 1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7

General

Target

1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
Size

1.2MB
MD5

c25ef68e3f182a258cc00ccc01c985e2
SHA1

498e57ef53f9a5deec7a08edfe8dd881e70a68d2
SHA256

1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7
SHA512

b00c9899a1f0677b7ddeb10472505e4e16b9082c442d00b24e826615211eb77b612656cd246219f336f86b3da19b25259a1056b819ac0743adf6d517cbcabf78

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://ring1.ug/As73yhsyU34578hxxx/SDf565g/get.php

Attributes

extension
.coot
offline_id
MRQ5kb5Z12tWuP3e25YoRt4PRDrJd2yuI3coott1
payload_url
http://ring1.ug/files/cost/updatewin1.exe
http://ring1.ug/files/cost/updatewin2.exe
http://ring1.ug/files/cost/updatewin.exe
http://ring1.ug/files/cost/3.exe
http://ring1.ug/files/cost/4.exe
http://ring1.ug/files/cost/5.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-IbdGyCKhdr Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: salesrestoresoftware@firemail.cc Reserve e-mail address to contact us: salesrestoresoftware@gmail.com Your personal ID: 0175Asd374y5iuhld

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1868-57-0x00000000094A0000-0x00000000095BA000-memory.dmp	family_djvu
behavioral1/memory/1868-58-0x0000000000400000-0x0000000001400000-memory.dmp	family_djvu
behavioral1/memory/1868-62-0x0000000000400000-0x0000000001400000-memory.dmp	family_djvu
behavioral1/memory/1008-66-0x0000000000400000-0x0000000001400000-memory.dmp	family_djvu
behavioral1/memory/1008-67-0x0000000000400000-0x0000000001400000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

688 icacls.exe

pid	process
688	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\d0921009-720c-4a32-8d1a-00f1958576b8\\1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe\" --AutoStart"	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 api.2ip.ua
7 api.2ip.ua
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	ioc
3	api.2ip.ua
7	api.2ip.ua

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe

pid	process
1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
1008	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
1008	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe

description	pid	process	target process
PID 1868 wrote to memory of 688	1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe	icacls.exe
PID 1868 wrote to memory of 688	1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe	icacls.exe
PID 1868 wrote to memory of 688	1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe	icacls.exe
PID 1868 wrote to memory of 688	1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe	icacls.exe
PID 1868 wrote to memory of 1008	1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
PID 1868 wrote to memory of 1008	1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
PID 1868 wrote to memory of 1008	1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
PID 1868 wrote to memory of 1008	1868	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe	1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe

C:\Users\Admin\AppData\Local\Temp\1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
"C:\Users\Admin\AppData\Local\Temp\1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1868

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\d0921009-720c-4a32-8d1a-00f1958576b8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
2⤵
- Modifies file permissions
PID:688

C:\Users\Admin\AppData\Local\Temp\1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
"C:\Users\Admin\AppData\Local\Temp\1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe" --Admin IsNotAutoStart IsNotTask
2⤵
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
PID:1008

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Permissions Modification

1

T1222

Modify Registry

2

T1112

Install Root Certificate

1

T1130

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\d0921009-720c-4a32-8d1a-00f1958576b8\1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7.exe
Filesize
1.2MB

MD5
c25ef68e3f182a258cc00ccc01c985e2

SHA1
498e57ef53f9a5deec7a08edfe8dd881e70a68d2

SHA256
1b359f5e2446a66b1e44143fabdfe23de8c237e93eeae0e973646dd205a645a7

SHA512
b00c9899a1f0677b7ddeb10472505e4e16b9082c442d00b24e826615211eb77b612656cd246219f336f86b3da19b25259a1056b819ac0743adf6d517cbcabf78

Download Submit
memory/688-59-0x0000000000000000-mapping.dmp

Download
memory/1008-63-0x00000000093D0000-0x0000000009492000-memory.dmp

Filesize
776KB

Download
memory/1008-61-0x0000000000000000-mapping.dmp

Download
memory/1008-65-0x00000000093D0000-0x0000000009461000-memory.dmp

Filesize
580KB

Download
memory/1008-66-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1008-67-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1868-57-0x00000000094A0000-0x00000000095BA000-memory.dmp

Filesize
1.1MB

Download
memory/1868-58-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1868-56-0x00000000093D0000-0x0000000009461000-memory.dmp

Filesize
580KB

Download
memory/1868-55-0x0000000075541000-0x0000000075543000-memory.dmp

Filesize
8KB

Download
memory/1868-62-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1868-54-0x00000000093D0000-0x0000000009492000-memory.dmp

Filesize
776KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads