djvu | c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9

General

Target

JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
Size

768KB
MD5

bf38f7a1539e20039ffdadee72bcef0e
SHA1

7225b33c709f7dbe92f13d53aed54ce969649828
SHA256

c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9
SHA512

6f0b45a57b2062b2666104456250604339968676341e4f92b44697fb9acdbb033c26c9338731ebdf9dc0e13e2c3dc9ce682935839b671d38638a5a45d8ba2148
SSDEEP

12288:B0F+ljfLb3SuBhEAJITrM2EjW6aqBRfyrhfjWL00TIO40t7ZuXb8a+3MVBt99fKR:xjj77ZCXM2lrhfyg0TQnAyBtbiR

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test1/get.php

Attributes

extension
.eewt
offline_id
5IVlpkccZlJz0AZ5atgGWVKe9CGAnXjohDf40mt1
payload_url
http://rgyui.top/dl/build2.exe

http://acacaca.org/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. You can get and look video overview decrypt tool: https://we.tl/t-0e5rCKsYCc 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: 0558Jhyjd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/1172-2-0x0000000002430000-0x000000000254B000-memory.dmp	family_djvu
behavioral2/memory/588-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/588-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/588-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/588-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/588-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4580-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4580-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4580-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3564	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\88fe823d-fd69-4cbe-a826-7f1581be284c\\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe\" --AutoStart"	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	api.2ip.ua
16	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1172 set thread context of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 4128 set thread context of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3848	4580	WerFault.exe	103

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
588	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
588	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 1172 wrote to memory of 588	1172	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	84
PID 588 wrote to memory of 3564	588	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	88
PID 588 wrote to memory of 3564	588	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	88
PID 588 wrote to memory of 3564	588	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	88
PID 588 wrote to memory of 4128	588	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	89
PID 588 wrote to memory of 4128	588	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	89
PID 588 wrote to memory of 4128	588	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	89
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103
PID 4128 wrote to memory of 4580	4128	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:588
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\88fe823d-fd69-4cbe-a826-7f1581be284c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3564
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4128
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:4580
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4580 -s 568
        5⤵
        Program crash
        
        PID:3848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4580 -ip 4580
1⤵
PID:2372

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\88fe823d-fd69-4cbe-a826-7f1581be284c\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe

Filesize
768KB

MD5
bf38f7a1539e20039ffdadee72bcef0e

SHA1
7225b33c709f7dbe92f13d53aed54ce969649828

SHA256
c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9

SHA512
6f0b45a57b2062b2666104456250604339968676341e4f92b44697fb9acdbb033c26c9338731ebdf9dc0e13e2c3dc9ce682935839b671d38638a5a45d8ba2148

Download Submit
memory/588-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/588-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/588-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/588-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/588-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1172-1-0x0000000002390000-0x0000000002429000-memory.dmp

Filesize
612KB

Download
memory/1172-2-0x0000000002430000-0x000000000254B000-memory.dmp

Filesize
1.1MB

Download
memory/4128-19-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/4128-25-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/4580-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4580-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4580-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads