djvu | 9748e28cd2e2a1a06ed9a5125b085e3e72654aa7cfc9d2f8400b7355ecd0c471

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
18-06-2024 08:03

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General

Target

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
Size

767KB
MD5

ba9f55ce820b48d6f1c78c10e7434db7
SHA1

b4e5b48f0a19ff733caa0a25d4cd3930b8cee023
SHA256

9748e28cd2e2a1a06ed9a5125b085e3e72654aa7cfc9d2f8400b7355ecd0c471
SHA512

c004261ae37b57a494a427506b19135d9b62b142fdc6cbab947d304fa31d4182b0336b37f1ffac30674aa8ed43684ebf748a27820dc8164374ad03ceff1ed5c1
SSDEEP

12288:+OSzSJpSkJFVxPlySItIuTrVbOTUs/yDGzQHYX/eeS9NE6bmInNqrXWSk13c31In:Q6pSGPT2FOTU3DjHeeeANEe9ArXk3cFQ

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://blvd.top/ydtftysdtyftysdfsdpen3/get.php

Attributes

extension
.mpaj
offline_id
RNDHQwNS07HCo9nNdWwsQzumCtR12dC9OhcDrut1
payload_url
http://blvd.top/files/penelop/updatewin1.exe
http://blvd.top/files/penelop/updatewin2.exe
http://blvd.top/files/penelop/updatewin.exe
http://blvd.top/files/penelop/3.exe
http://blvd.top/files/penelop/4.exe
http://blvd.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-9o703iSIHn 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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0219OIWojlj48

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 10 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1612-2-0x0000000002310000-0x000000000242A000-memory.dmp	family_djvu
behavioral2/memory/1612-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1612-14-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral2/memory/1612-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1612-15-0x0000000002310000-0x000000000242A000-memory.dmp	family_djvu
behavioral2/memory/3720-19-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral2/memory/3720-20-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral2/memory/3720-27-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral2/memory/3720-30-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral2/memory/3720-31-0x0000000000400000-0x0000000000570000-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:

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4076 icacls.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

pid	process
4076	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7d314e3b-5396-46e6-9ca1-4702485df5e1\\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe\" --AutoStart"	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.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
39 api.2ip.ua
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

5088 1612 WerFault.exe ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

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

pid	pid_target	process	target process
5088	1612	WerFault.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exeba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

pid	process
1612	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
1612	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
3720	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
3720	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

description	pid	process	target process
PID 1612 wrote to memory of 4076	1612	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	icacls.exe
PID 1612 wrote to memory of 4076	1612	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	icacls.exe
PID 1612 wrote to memory of 4076	1612	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	icacls.exe
PID 1612 wrote to memory of 3720	1612	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
PID 1612 wrote to memory of 3720	1612	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
PID 1612 wrote to memory of 3720	1612	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1612

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\7d314e3b-5396-46e6-9ca1-4702485df5e1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
2⤵
- Modifies file permissions
PID:4076

C:\Users\Admin\AppData\Local\Temp\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:3720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 2124
2⤵
- Program crash
PID:5088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1612 -ip 1612
1⤵
PID:844

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize
1KB

MD5
2365869258df7a66a2121b802ca4afd9

SHA1
73acc30a2edeb9d6830de559bb8a74f35168135d

SHA256
d6b1932822bbd72a8e78c771717d992142348f67d625a42393719fefbe59b0ed

SHA512
795004bab536e128dbd81c188976d37c7b650efbfa5a80374df4c65a1049c27658f4620b7605583928eb167fcb69b4c99e4c8730c507b824a7bde9c7fb0e21f4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
Filesize
436B

MD5
1bfe0a81db078ea084ff82fe545176fe

SHA1
50b116f578bd272922fa8eae94f7b02fd3b88384

SHA256
5ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f

SHA512
37c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize
174B

MD5
a4d685ad3c2ce97337f69b7505051656

SHA1
81ce2bb462c7a8cc72d4c3e58811850728a10464

SHA256
5bd2298ce952eb2c00b2f652f4373a8cf7daa0cff802016d5dd76e47760d4815

SHA512
199d9e6c91ddd507956db544e51494213ad6392600851f1166c145039acc32f2bcb292d8acc6d4927b0127b5fb1f62fe9653aba825773e8a9503f08880a05db7

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize
170B

MD5
4db961cbae990c2470e5ab55d7ec3cdd

SHA1
990f5fd0adf86dadcab85021e943aed602ba1123

SHA256
86b76d709f1d46e8aab5c0ba93d9c4a1edb46c405acaaf3238a7de6c00605923

SHA512
deb1ba25ad3760556c9ebe12cff9a679684e18c11c830a7f92b2d7d3c8707d0d5ae533e4e8e653cbdb507854f8f89ec2033063fba40fb77fc9b38aaa4b5b29ec

Download Submit
C:\Users\Admin\AppData\Local\7d314e3b-5396-46e6-9ca1-4702485df5e1\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
Filesize
767KB

MD5
ba9f55ce820b48d6f1c78c10e7434db7

SHA1
b4e5b48f0a19ff733caa0a25d4cd3930b8cee023

SHA256
9748e28cd2e2a1a06ed9a5125b085e3e72654aa7cfc9d2f8400b7355ecd0c471

SHA512
c004261ae37b57a494a427506b19135d9b62b142fdc6cbab947d304fa31d4182b0336b37f1ffac30674aa8ed43684ebf748a27820dc8164374ad03ceff1ed5c1

Download Submit
memory/1612-14-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/1612-15-0x0000000002310000-0x000000000242A000-memory.dmp

Filesize
1.1MB

Download
memory/1612-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1612-2-0x0000000002310000-0x000000000242A000-memory.dmp

Filesize
1.1MB

Download
memory/1612-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1612-1-0x0000000000610000-0x00000000006A2000-memory.dmp

Filesize
584KB

Download
memory/3720-18-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/3720-19-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/3720-20-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/3720-27-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/3720-30-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/3720-31-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download