djvu | 2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea

General

Target

2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
Size

727KB
MD5

add437e239eba1ceabca80af38f80b56
SHA1

7d288eb76b3f0b1b3c37a020a61e97d4e43a1450
SHA256

2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea
SHA512

c6447b5e35f05399efb4263db09c2e980f402c2368a06806a37684b0b248635b6f64f51587479d9fe66f833f5c44ea7a571ce7d5f5886a5eb54b6df30f9a9fd5
SSDEEP

12288:q+dJfgo8vQKBuYVcUOmsIzxGd1OrZ7Ir2YjqF7fKjnmaoBt9WWayr9q0:hgoWQKBuXUtgdAJ2maoBtKyr9q0

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.veza
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
payload_url
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4596-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4596-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4596-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1448-3-0x00000000021A0000-0x00000000022BB000-memory.dmp	family_djvu
behavioral2/memory/4596-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4596-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/440-39-0x0000000000400000-0x0000000000537000-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:

2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4068 icacls.exe

pid	process
4068	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\cc04ecdb-dce0-4606-b1d9-f7fdea64fe2a\\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe\" --AutoStart"	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.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
6 api.2ip.ua
20 api.2ip.ua

flow	ioc
4	api.2ip.ua
6	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe

description	pid	process	target process
PID 1448 set thread context of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 set thread context of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.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:

2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe

pid	process
4596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
4596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
440	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
440	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe

C:\Users\Admin\AppData\Local\Temp\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
"C:\Users\Admin\AppData\Local\Temp\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1448

C:\Users\Admin\AppData\Local\Temp\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
"C:\Users\Admin\AppData\Local\Temp\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4596

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\cc04ecdb-dce0-4606-b1d9-f7fdea64fe2a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:4068

C:\Users\Admin\AppData\Local\Temp\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
"C:\Users\Admin\AppData\Local\Temp\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1596

C:\Users\Admin\AppData\Local\Temp\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
"C:\Users\Admin\AppData\Local\Temp\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:440

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

Query Registry

1

T1012

System Information Discovery

2

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
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
302d46f9a5d106d6f1c5fa48629b814f

SHA1
d8b2c65f7609019efbab5a1597b3398d89b02572

SHA256
fbce592492d16a1983689da890b44e93001128d907f0a450e15e04a94fe1fc2e

SHA512
2814dd1700d9be1e3122775ba5c81a2050981de3969da095786de3692534c4d2be9919f66c960b52787b57cb0acecf62418f496f5feef7827745c71002dad272

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

Filesize
392B

MD5
b7c4e329fcefc5fbbe1caeb5bf0ffe0f

SHA1
e75d4c91c514431acfcce84ec6d4cfbba12d0546

SHA256
ec30a14b5c6ed06c3e2545785aad75b4363aed33cf5a77298ef3cd7c5c4325f6

SHA512
80b29c1298c2e7d60d55ed38fafaa6d0b9097dc946b7f8387699659d4eec8bef488e1e520ba0ec13dd4a3f790c46e72649f7e75ed333328994609b65f00045d3

Download Submit
C:\Users\Admin\AppData\Local\cc04ecdb-dce0-4606-b1d9-f7fdea64fe2a\2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe

Filesize
727KB

MD5
add437e239eba1ceabca80af38f80b56

SHA1
7d288eb76b3f0b1b3c37a020a61e97d4e43a1450

SHA256
2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea

SHA512
c6447b5e35f05399efb4263db09c2e980f402c2368a06806a37684b0b248635b6f64f51587479d9fe66f833f5c44ea7a571ce7d5f5886a5eb54b6df30f9a9fd5

Download Submit
memory/440-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/440-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1448-3-0x00000000021A0000-0x00000000022BB000-memory.dmp

Filesize
1.1MB

Download
memory/1448-1-0x0000000002100000-0x0000000002199000-memory.dmp

Filesize
612KB

Download
memory/1596-22-0x0000000000400000-0x00000000004FF000-memory.dmp

Filesize
1020KB

Download
memory/1596-19-0x0000000000400000-0x00000000004FF000-memory.dmp

Filesize
1020KB

Download
memory/4596-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4596-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4596-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4596-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4596-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1448 wrote to memory of 4596	1448	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 4596 wrote to memory of 4068	4596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	icacls.exe
PID 4596 wrote to memory of 4068	4596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	icacls.exe
PID 4596 wrote to memory of 4068	4596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	icacls.exe
PID 4596 wrote to memory of 1596	4596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 4596 wrote to memory of 1596	4596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 4596 wrote to memory of 1596	4596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe
PID 1596 wrote to memory of 440	1596	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe	2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads