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 13 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2828-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2884-6-0x0000000003D60000-0x0000000003E7B000-memory.dmp	family_djvu
behavioral1/memory/2828-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2828-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2828-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2176-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2176-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2176-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2176-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2176-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2176-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2176-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2176-55-0x0000000000400000-0x0000000000537000-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 and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2596 icacls.exe

pid	process
2596	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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\dff0770b-b0e0-4ac7-b7b2-a8142e566681\\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

4 api.2ip.ua
9 api.2ip.ua
3 api.2ip.ua

flow	ioc
4	api.2ip.ua
9	api.2ip.ua
3	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

description	pid	process	target process
PID 2884 set thread context of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 set thread context of 2176	1328	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 2 IoCs

Processes:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

pid	process
2828	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
2176	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Suspicious use of WriteProcessMemory 30 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:2884

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2828

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\dff0770b-b0e0-4ac7-b7b2-a8142e566681" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2596

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:1328

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
1KB

MD5
6728aea2631b86a76c237508d8ba9b55

SHA1
7a670f95cac088313f7558869162fe01c6dc0ec9

SHA256
e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b

SHA512
533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5

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
c7b1744cbba2a50bf8a7e427d1202e04

SHA1
ac78646db8396a88fd7e926e5b4321f2ec004a10

SHA256
f5762c73a789ffc783ce05bad1f49cb90a6c4e13c80bd57410d57d00787e5d80

SHA512
4ad2b866a3c57b63e53808abf9f20906f80855401b0006898f7a2d1bd586b660d2cc3a766010f5b039a918f0e76d8706b8bdf1af3cadbb1b529a8befed84c2f5

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
56405734ca45bf5c1b67681a9295bdf8

SHA1
a7446166d7a6d9c9ab3d18bdd5941009c9c9d8a0

SHA256
980602d99b9c1b4630def143f60beda332397bd21edcea5ce3ae94acab36bf15

SHA512
35c1feb9c14eff626a5245cf995fbf6972ed6a270f44df67cda45c78ad37c4a73707a4fd206fd5a7a36f8d050912fa69103a6c35f6242971ca86de5d074c5b8a

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

Filesize
392B

MD5
49f456891265ac0e264c8ecf996f119d

SHA1
3cd808834d68b1f2b4294e4667d226010a2b176c

SHA256
459436eb6d52b53547b728cd2c3a4954316850c694acba44b5162fd391a2f2db

SHA512
89f63b86e50653c34bd0f5e7356a8377491cb43b8994a247cd4b4808e300c7b57fe9ec501dd459ad155e25b6dd466f9d2ea45c6c529c77be574e4e689583c7b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab19D7.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\dff0770b-b0e0-4ac7-b7b2-a8142e566681\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Filesize
708KB

MD5
afc2780d65fe1e67d01ae629cd2f1e0f

SHA1
cabfc8608feca588c98e30476e79b9df85171c6f

SHA256
09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319

SHA512
390b4b8a11c099d512e2388c408492190311b2daaefc063c9279b6cc3f3a96ec3b71a1905556188439b42d29d2bde40662241a4ba08a456e5c72af3307f915b5

Download Submit
memory/1328-29-0x0000000000270000-0x0000000000302000-memory.dmp

Filesize
584KB

Download
memory/2176-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2176-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2176-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2176-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2176-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2176-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2176-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2176-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2828-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2828-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2828-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2828-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2884-6-0x0000000003D60000-0x0000000003E7B000-memory.dmp

Filesize
1.1MB

Download
memory/2884-0-0x00000000023D0000-0x0000000002462000-memory.dmp

Filesize
584KB

Download
memory/2884-4-0x00000000023D0000-0x0000000002462000-memory.dmp

Filesize
584KB

Download
memory/2884-49-0x00000000023D0000-0x0000000002462000-memory.dmp

Filesize
584KB

Download

description	pid	process	target process
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2884 wrote to memory of 2828	2884	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2828 wrote to memory of 2596	2828	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 2828 wrote to memory of 2596	2828	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 2828 wrote to memory of 2596	2828	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 2828 wrote to memory of 2596	2828	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 2828 wrote to memory of 1328	2828	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2828 wrote to memory of 1328	2828	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2828 wrote to memory of 1328	2828	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 2828 wrote to memory of 1328	2828	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 1328 wrote to memory of 2176	1328	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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