djvu | d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18

General

Target

d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
Size

681KB
MD5

84174a142d30afe6075d57a1aead4d18
SHA1

330dfeed26f3ac123aa182fd28751144ea9b097a
SHA256

d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18
SHA512

f65c51eaf55b1ecbbb3a82f9bab0b5428f04727fbc7795679eb6c127847eb668259bf3fe406b35e6e36902b653d28c33449caec882677b24f95daab7e44f9866

Score

10^/10

djvu discovery persistence ransomware suricata

Malware Config

Extracted

Family

djvu

C2

http://cjto.top/nddddhsspen6/get.php

Attributes

extension
.geno
offline_id
Gq9C3wfB3EovXBFkGxv1b5wkUKUxVy1x63fasTt1
payload_url
http://cjto.top/files/penelop/updatewin1.exe
http://cjto.top/files/penelop/updatewin2.exe
http://cjto.top/files/penelop/updatewin.exe
http://cjto.top/files/penelop/3.exe
http://cjto.top/files/penelop/4.exe
http://cjto.top/files/penelop/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-ZLZ4pVnuS4 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: helpmanager@mail.ch Reserve e-mail address to contact us: restoremanager@airmail.cc Your personal ID: 0248Oowhu34

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4220-133-0x0000000006140000-0x000000000625A000-memory.dmp	family_djvu
behavioral2/memory/4220-135-0x0000000000400000-0x0000000005DE8000-memory.dmp	family_djvu
behavioral2/memory/2156-141-0x0000000000400000-0x0000000005DE8000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
suricata: ET MALWARE APT-C-23 Activity (GET)
suricata: ET MALWARE APT-C-23 Activity (GET)
suricata
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata
suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key
suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key
suricata
suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload
suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload
suricata

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

1936 icacls.exe

pid	process
1936	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\98221b2c-ba3d-4153-a763-42f30656798d\\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe\" --AutoStart"	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

27 api.2ip.ua
28 api.2ip.ua
41 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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4588 4220 WerFault.exe d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

flow	ioc
27	api.2ip.ua
28	api.2ip.ua
41	api.2ip.ua

pid	pid_target	process	target process
4588	4220	WerFault.exe	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exed323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

pid	process
4220	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
4220	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
2156	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
2156	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

description	pid	process	target process
PID 4220 wrote to memory of 1936	4220	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe	icacls.exe
PID 4220 wrote to memory of 1936	4220	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe	icacls.exe
PID 4220 wrote to memory of 1936	4220	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe	icacls.exe
PID 4220 wrote to memory of 2156	4220	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
PID 4220 wrote to memory of 2156	4220	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
PID 4220 wrote to memory of 2156	4220	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe	d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

C:\Users\Admin\AppData\Local\Temp\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
"C:\Users\Admin\AppData\Local\Temp\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4220

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\98221b2c-ba3d-4153-a763-42f30656798d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
2⤵
- Modifies file permissions
PID:1936

C:\Users\Admin\AppData\Local\Temp\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
"C:\Users\Admin\AppData\Local\Temp\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe" --Admin IsNotAutoStart IsNotTask
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:2156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4220 -s 2140
2⤵
- Program crash
PID:4588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4220 -ip 4220
1⤵
PID:2008

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize
727B

MD5
93995ad095112907cfc088998c161574

SHA1
518c7127e11809bb74ff0f68ea7e86ea5aebc798

SHA256
fd16d238bcac3441688e7ca940c27bb02df8f0bf43b26d8e551414a18748c1cc

SHA512
c2a3153c65f0acbc821bf663b38591821402d9a00680e2e22f410bf1735752194c08b96f77b7e6712082584a8b6605f7ab9552ad2f6c193fbd13c90bb60436e9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize
471B

MD5
c04f441d0220712231531a90823834db

SHA1
68dd18f1e0c51f1fdc4621394091a2dad08e4a08

SHA256
055641d3987ae98e2dd627d3214ea8084ae773a3df9592191b86977c752a29e7

SHA512
3156cf79585a45d919d4b27da4fe860f06e3206961fe1d20347ad74ef17de81c47857f35acd5cda3fae5ade28ab9747529ea3e8e79ca80aaf98e1f0e852bed53

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize
402B

MD5
bb9e9c4ee5b1e3c54ea76dd131a7e3c6

SHA1
05ccc4916f7ed2e53aea4905b0bf70a7ffd2ac3b

SHA256
dff90053c86553eb7073ef787e4d76301e8f2366caf17e618d8862d74fcbb47f

SHA512
8af9c02390332f68946754d710ee29285f9db608113ecf6a5739693a46f924120e33064da420fd9eff31c8273ea76bc77a13c08100cefd041d6bf608e1b55109

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize
396B

MD5
c064e4bc4d496d45c082047e0db0b7a9

SHA1
038c6712be320d8827bc7aab8b900798aa9fb6be

SHA256
3eb55d453580944f90e900c74f07d0cd3428a928422f933f18d0d94cbcc3c654

SHA512
06d068ffc8e23f8648a31eb4f92174615901fae04ba88e01472b5e212d38650a67f61383eab0807d3c637fa42a7d1423d8ad5a4e269af7db9d9548272d305cdc

Download Submit
C:\Users\Admin\AppData\Local\98221b2c-ba3d-4153-a763-42f30656798d\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
Filesize
681KB

MD5
84174a142d30afe6075d57a1aead4d18

SHA1
330dfeed26f3ac123aa182fd28751144ea9b097a

SHA256
d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18

SHA512
f65c51eaf55b1ecbbb3a82f9bab0b5428f04727fbc7795679eb6c127847eb668259bf3fe406b35e6e36902b653d28c33449caec882677b24f95daab7e44f9866

Download Submit
memory/1936-130-0x0000000000000000-mapping.dmp

Download
memory/2156-134-0x0000000000000000-mapping.dmp

Download
memory/2156-136-0x0000000007A52000-0x0000000007AE3000-memory.dmp

Filesize
580KB

Download
memory/2156-141-0x0000000000400000-0x0000000005DE8000-memory.dmp

Filesize
89.9MB

Download
memory/4220-132-0x00000000060A0000-0x0000000006131000-memory.dmp

Filesize
580KB

Download
memory/4220-133-0x0000000006140000-0x000000000625A000-memory.dmp

Filesize
1.1MB

Download
memory/4220-135-0x0000000000400000-0x0000000005DE8000-memory.dmp

Filesize
89.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads