djvu | 947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2

General

Target

947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
Size

797KB
MD5

0cb5eee745d518bc94087f763180528e
SHA1

4b844c778d7ee255492be4a8b1298e4aeb2dd200
SHA256

947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2
SHA512

ed46732281bca79344a3e92c1697a5e0fe40c010c8cb8441a4abe9fa939215265ec82e13d24be0a778b0873c05e4ef4d6568c8cf43eeb7d960b30705631c2dca
SSDEEP

12288:ja3XYmSqqJHcNRpBXegsn7PAw+lZcHEsBvjmVRZ0WmwHdTjCOF1FFvfwPFBK6GXQ:jxqRRSg2HkMBrMJHdTjCQd3wPVaT9+

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.bgzq
offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
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/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 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: support@freshingmail.top Reserve e-mail address to contact us: datarestorehelpyou@airmail.cc Your personal ID: 0864PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1252-2-0x0000000005D60000-0x0000000005E7B000-memory.dmp	family_djvu
behavioral1/memory/4476-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4476-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4476-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4476-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4476-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/460-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/460-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/460-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/460-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/460-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/460-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/460-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/460-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/460-34-0x0000000000400000-0x0000000000537000-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:

947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

3376 icacls.exe

pid	process
3376	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\74e76ecb-02c5-48ff-afc7-b721c365d42d\\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe\" --AutoStart"	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.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

25 api.2ip.ua
10 api.2ip.ua
12 api.2ip.ua

flow	ioc
25	api.2ip.ua
10	api.2ip.ua
12	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe

description	pid	process	target process
PID 1252 set thread context of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 set thread context of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.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:

947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe

pid	process
4476	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
4476	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
460	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
460	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe

C:\Users\Admin\AppData\Local\Temp\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
"C:\Users\Admin\AppData\Local\Temp\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1252

C:\Users\Admin\AppData\Local\Temp\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
"C:\Users\Admin\AppData\Local\Temp\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4476

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\74e76ecb-02c5-48ff-afc7-b721c365d42d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:3376

C:\Users\Admin\AppData\Local\Temp\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
"C:\Users\Admin\AppData\Local\Temp\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3972

C:\Users\Admin\AppData\Local\Temp\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
"C:\Users\Admin\AppData\Local\Temp\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:460

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
62157377b2466befda9ec988b5e1a19e

SHA1
fc3905dc5147971391252d875ae2c38cdc67dfdd

SHA256
5ef7675df551d2cc5b627da581d2393fea05a6117c87c430e74caa70c713f0e5

SHA512
fedf0a40d603f987e172ef8856f1ce73b7e853fa34276e6fb6b44cb92f00f23a97ab9399f5cec8205c1f6cb814af730e2b35cb688e404316fb4e82d080f9714e

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
6dd55730bb9a6a1e02b5632d140853c6

SHA1
efd676518e5a082c83653a333c505a766ba35937

SHA256
e758b30a191aab6beeee83d51e020072dcbe78d0fc8bf04fe33b0332c62bcf00

SHA512
6ced99b3ec15d434609487c155b48623d7cec6b560b1bbac7c24737ce55d3a3811e2eb6ba3b7f80037ab9d2b5b348d98e748cb3e3456954f211d016a70c46aa0

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

MD5
5b1b52655e302e4b47938fefdec91d5b

SHA1
6c07dd234272a1c04d530848242d855f36e14603

SHA256
175ac85b69b4aa32f8e3ce70cd93410f44d709b3e49dc9a442f0123c3357a902

SHA512
90a7605a8b57a1bbd3f3c21069d1a690e3dbb539834a02dda3aa176699ad8a9808bfd75e1abced7a11c7a20441244351b7b1e10ad1976168b520bc6ae621dfc8

Download Submit
C:\Users\Admin\AppData\Local\74e76ecb-02c5-48ff-afc7-b721c365d42d\947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
Filesize
797KB

MD5
0cb5eee745d518bc94087f763180528e

SHA1
4b844c778d7ee255492be4a8b1298e4aeb2dd200

SHA256
947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2

SHA512
ed46732281bca79344a3e92c1697a5e0fe40c010c8cb8441a4abe9fa939215265ec82e13d24be0a778b0873c05e4ef4d6568c8cf43eeb7d960b30705631c2dca

Download Submit
memory/460-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/460-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/460-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/460-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/460-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/460-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/460-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/460-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/460-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1252-1-0x00000000041A0000-0x000000000423C000-memory.dmp

Filesize
624KB

Download
memory/1252-2-0x0000000005D60000-0x0000000005E7B000-memory.dmp

Filesize
1.1MB

Download
memory/4476-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4476-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4476-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4476-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4476-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 1252 wrote to memory of 4476	1252	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 4476 wrote to memory of 3376	4476	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	icacls.exe
PID 4476 wrote to memory of 3376	4476	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	icacls.exe
PID 4476 wrote to memory of 3376	4476	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	icacls.exe
PID 4476 wrote to memory of 3972	4476	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 4476 wrote to memory of 3972	4476	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 4476 wrote to memory of 3972	4476	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe
PID 3972 wrote to memory of 460	3972	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe	947ecb6437f9dac5bf41e9787c484ce474e8bfb7fc4d0d192a4816e007ab7ab2.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads