djvu | a3121984cecddff33f8f6b01a06d18b314d50deab85cbfbc5657a0720f61f56e

General

Target

JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
Size

782KB
MD5

787cc165c68459ec64312260bee3bc0d
SHA1

035a01eb52fdedd8fd62733d9f41fc0e2d676d3b
SHA256

a3121984cecddff33f8f6b01a06d18b314d50deab85cbfbc5657a0720f61f56e
SHA512

0c7327829af3abe1cfe5b0f0ae64db2dc48686602e577cb75e88a6df10bd3163fe34f03b355e42e8c3c286983c2a9da28cf4fca27a0d8a4f671a8435c8bd6dc3
SSDEEP

24576:HrDaMvJM5QlxHnU5WNiUUbe3UIz6J/L2RM:HrnvJbltnlPTK/qM

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://rlrz.org/fhsgtsspen6/get.php

Attributes

extension
.maql
offline_id
xcdIdDNFh62dy3iJsba1COhcfDENsbjPHQQ2Eht1
payload_url
http://znpst.top/dl/build2.exe

http://rlrz.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-pk3SGFlmek 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: 0340gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 16 IoCs

resource	yara_rule
behavioral2/memory/4676-1-0x0000000004EC0000-0x0000000004FDB000-memory.dmp	family_djvu
behavioral2/memory/4088-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4088-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4088-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4088-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4088-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4800-38-0x0000000000400000-0x0000000000537000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4012	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\50debb4a-0813-4884-9f9a-6ca2c2ee9e22\\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe\" --AutoStart"	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.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.

flow	ioc
14	api.2ip.ua
15	api.2ip.ua
19	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4676 set thread context of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4952 set thread context of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88

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

System Information Discovery
T1082

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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4088	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
4088	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
4800	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
4800	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4676 wrote to memory of 4088	4676	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	83
PID 4088 wrote to memory of 4012	4088	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	84
PID 4088 wrote to memory of 4012	4088	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	84
PID 4088 wrote to memory of 4012	4088	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	84
PID 4088 wrote to memory of 4952	4088	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	85
PID 4088 wrote to memory of 4952	4088	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	85
PID 4088 wrote to memory of 4952	4088	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	85
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88
PID 4952 wrote to memory of 4800	4952	JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4676
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.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:4088
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\50debb4a-0813-4884-9f9a-6ca2c2ee9e22" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4012
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4952
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:4800

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
1KB

MD5
67e486b2f148a3fca863728242b6273e

SHA1
452a84c183d7ea5b7c015b597e94af8eef66d44a

SHA256
facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

SHA512
d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

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

Filesize
436B

MD5
971c514f84bba0785f80aa1c23edfd79

SHA1
732acea710a87530c6b08ecdf32a110d254a54c8

SHA256
f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

SHA512
43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

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

Filesize
174B

MD5
9ef494aa804782da37f376cb710e4955

SHA1
094884272a383182b2eb7061201b28a498afad40

SHA256
4e558cf3ee58cb9e91ebb11999a68844e7fbabce8b9dcb6b106acae60fe541a3

SHA512
e4864ab23528f83db7399c1b069e143374c6f8a5a5787ca7cb022f0db6305d7fc6b09477c4e9b99243288cb629d48ee4080d9cda26cd8c64061e3eb3ae8473ba

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

Filesize
170B

MD5
5c431314a8f02c57cd227be78e1daf16

SHA1
a241469cd7edbdd15a855dd7236ac4a4ee2fd22d

SHA256
0cac8384c58087affe21d40771f3fc24dbf90e800685dbf633c57c9a6c949996

SHA512
bd67cef39a6e806900a7f82239d7a936c76b697573cf06c19d36038c5fb01b7d4d8f8f142fc90ef17a0b522b19a8b47a8383a1d0a634908036d782bc03db2ee6

Download Submit
C:\Users\Admin\AppData\Local\50debb4a-0813-4884-9f9a-6ca2c2ee9e22\JaffaCakes118_787cc165c68459ec64312260bee3bc0d.exe

Filesize
782KB

MD5
787cc165c68459ec64312260bee3bc0d

SHA1
035a01eb52fdedd8fd62733d9f41fc0e2d676d3b

SHA256
a3121984cecddff33f8f6b01a06d18b314d50deab85cbfbc5657a0720f61f56e

SHA512
0c7327829af3abe1cfe5b0f0ae64db2dc48686602e577cb75e88a6df10bd3163fe34f03b355e42e8c3c286983c2a9da28cf4fca27a0d8a4f671a8435c8bd6dc3

Download Submit
memory/4088-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4088-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4088-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4088-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4088-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4676-1-0x0000000004EC0000-0x0000000004FDB000-memory.dmp

Filesize
1.1MB

Download
memory/4676-0-0x0000000004E20000-0x0000000004EB2000-memory.dmp

Filesize
584KB

Download
memory/4676-5-0x0000000004E20000-0x0000000004EB2000-memory.dmp

Filesize
584KB

Download
memory/4800-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4800-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4800-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4800-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4800-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4800-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4800-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4800-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4800-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4800-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads