djvu | 0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5

General

Target

0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
Size

706KB
MD5

568c47909d97b3e9025ce5649735f54c
SHA1

0cd725e4c902016fb6845d38419a7f8cd9a0a483
SHA256

0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5
SHA512

4b139e76265d3c5dac48dea9b99b72729e4cf38f19585235e3a900d7b3ceb72d11334051cbb67af342de85a4a0d2018089721220cd1f3b527ca8bde8d7d17fb5
SSDEEP

12288:8Fr0tMdnoqiIQSS7qX+BnxIdhwQScRKUQzfWVChzFhT9WofQsd6P:8RxnoqrZS7g+BQG85t8RL9WwQe6P

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fresherlights.com/test1/get.php

Attributes

extension
.tcvp
offline_id
JBPpFMvWlKMsKlJRmPJl5e09RSnYrRJya1oX8xt1
payload_url
http://uaery.top/dl/build2.exe

http://fresherlights.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4888-133-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4888-134-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1480-136-0x0000000002510000-0x000000000262B000-memory.dmp	family_djvu
behavioral1/memory/4888-137-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4888-138-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4456-144-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4456-146-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4888-147-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4456-148-0x0000000000400000-0x0000000000537000-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:

0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

1508 icacls.exe

pid	process
1508	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9e5381e0-8ecc-4968-a69e-9a509dcc4617\\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe\" --AutoStart"	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

14 api.2ip.ua

flow	ioc
14	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

description	pid	process	target process
PID 1480 set thread context of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 set thread context of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

pid	process
4888	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
4888	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
4456	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
4456	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

C:\Users\Admin\AppData\Local\Temp\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
"C:\Users\Admin\AppData\Local\Temp\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1480

C:\Users\Admin\AppData\Local\Temp\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
"C:\Users\Admin\AppData\Local\Temp\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4888

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\9e5381e0-8ecc-4968-a69e-9a509dcc4617" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:1508

C:\Users\Admin\AppData\Local\Temp\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
"C:\Users\Admin\AppData\Local\Temp\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1724

C:\Users\Admin\AppData\Local\Temp\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
"C:\Users\Admin\AppData\Local\Temp\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\9e5381e0-8ecc-4968-a69e-9a509dcc4617\0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

Filesize
706KB

MD5
568c47909d97b3e9025ce5649735f54c

SHA1
0cd725e4c902016fb6845d38419a7f8cd9a0a483

SHA256
0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5

SHA512
4b139e76265d3c5dac48dea9b99b72729e4cf38f19585235e3a900d7b3ceb72d11334051cbb67af342de85a4a0d2018089721220cd1f3b527ca8bde8d7d17fb5

Download Submit
memory/1480-135-0x0000000002353000-0x00000000023E5000-memory.dmp

Filesize
584KB

Download
memory/1480-136-0x0000000002510000-0x000000000262B000-memory.dmp

Filesize
1.1MB

Download
memory/1508-139-0x0000000000000000-mapping.dmp

Download
memory/1724-145-0x0000000002374000-0x0000000002406000-memory.dmp

Filesize
584KB

Download
memory/1724-141-0x0000000000000000-mapping.dmp

Download
memory/4456-142-0x0000000000000000-mapping.dmp

Download
memory/4456-144-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4456-146-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4456-148-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-137-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-138-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-134-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-132-0x0000000000000000-mapping.dmp

Download
memory/4888-133-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-147-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1480 wrote to memory of 4888	1480	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 4888 wrote to memory of 1508	4888	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	icacls.exe
PID 4888 wrote to memory of 1508	4888	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	icacls.exe
PID 4888 wrote to memory of 1508	4888	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	icacls.exe
PID 4888 wrote to memory of 1724	4888	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 4888 wrote to memory of 1724	4888	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 4888 wrote to memory of 1724	4888	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe
PID 1724 wrote to memory of 4456	1724	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe	0b069b50514b5f9be04bb0d591c9df23539264f6abcbb63fd05e41795b1a34a5.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads