djvu | 09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319

General

Target

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
Size

708KB
MD5

afc2780d65fe1e67d01ae629cd2f1e0f
SHA1

cabfc8608feca588c98e30476e79b9df85171c6f
SHA256

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319
SHA512

390b4b8a11c099d512e2388c408492190311b2daaefc063c9279b6cc3f3a96ec3b71a1905556188439b42d29d2bde40662241a4ba08a456e5c72af3307f915b5
SSDEEP

12288:SbYZF34fEdgCZ/Qp9bzIWDvhcC38g1AjGjJp4C0G6K98:S2F4EdgCZ/clbcCN6m74CS

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test2/get.php

Attributes

extension
.vehu
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://cajgtus.com/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, 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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0872PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3544-2-0x00000000041E0000-0x00000000042FB000-memory.dmp	family_djvu
behavioral1/memory/4392-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4392-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4392-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4392-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4392-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4392-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5364-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

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:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

3548 icacls.exe

pid	process
3548	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a23cfecf-08ad-4d44-af00-bffacd7b0153\\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe\" --AutoStart"	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.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

2 api.2ip.ua
14 api.2ip.ua
1 api.2ip.ua

flow	ioc
2	api.2ip.ua
14	api.2ip.ua
1	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

description	pid	process	target process
PID 3544 set thread context of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 set thread context of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

pid	process
4392	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
4392	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
5364	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
5364	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3544

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4392

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\a23cfecf-08ad-4d44-af00-bffacd7b0153" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:3548

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5452

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:5364

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=3984 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:5808

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
1KB

MD5
df80f9ba75076db634761b6132e0d4e3

SHA1
07983946fb660752c7cccb2ef82d01ec4c9ecc5d

SHA256
d5ff96fd8b416de93a85783192206224cf8821c240cd8ff755f2e8270153dd99

SHA512
4ec734c5d29e9ce00b00e42b627253195e8c7a158433fedfcee428e692a6501981c33d7c8a39235f8b691f087145cdbe660b430493edbeedb12588c5cdd5a66a

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
410B

MD5
1cfbe0c60c34be3d40893c3a11d61674

SHA1
0669783ca1f50381103b014b185f1faf28d6f290

SHA256
6afdd946e9700d2396d57ab143b83aba05ba2326096eaedec06bb11e86c86774

SHA512
26003c8b3ef4cab30f689aea32b49bdd133b7ddf6195d47f1f6f3bb27071dda62e89e102569645865da1f1951d4bd1b05aa6019cb5c06a20224eb7708a3d5d55

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
392B

MD5
71337f56f251f6817e96cdd5a57f008f

SHA1
2cd2610a56d0157b245da3572b19230e88095416

SHA256
5a7f2ff5db3cf828a70623358742c7fac5761488cf9cfd7b451eb43be48bc9dc

SHA512
8c688416aff913c1f788d9eaf89abdeb317fd096ed4928ec0e69eace4a4e166d262e65a1df9667cce5495bb3b2bf2eeb5fa39e616e189f1957a7e66423b21df5

Download Submit
C:\Users\Admin\AppData\Local\a23cfecf-08ad-4d44-af00-bffacd7b0153\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
Filesize
708KB

MD5
afc2780d65fe1e67d01ae629cd2f1e0f

SHA1
cabfc8608feca588c98e30476e79b9df85171c6f

SHA256
09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319

SHA512
390b4b8a11c099d512e2388c408492190311b2daaefc063c9279b6cc3f3a96ec3b71a1905556188439b42d29d2bde40662241a4ba08a456e5c72af3307f915b5

Download Submit
memory/3544-1-0x0000000004130000-0x00000000041D1000-memory.dmp

Filesize
644KB

Download
memory/3544-2-0x00000000041E0000-0x00000000042FB000-memory.dmp

Filesize
1.1MB

Download
memory/4392-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4392-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4392-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4392-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4392-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4392-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5364-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3544 wrote to memory of 4392	3544	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4392 wrote to memory of 3548	4392	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 4392 wrote to memory of 3548	4392	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 4392 wrote to memory of 3548	4392	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 4392 wrote to memory of 5452	4392	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4392 wrote to memory of 5452	4392	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4392 wrote to memory of 5452	4392	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 5452 wrote to memory of 5364	5452	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads