djvu | 5d78cfec3d53645a049ddf865d760f4430fd8e6b6958821326ee194f927278cb

General

Target

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Size

677KB
MD5

8ea72364aef6738debc38a72456ae875
SHA1

67fc11482612c3efda5a7d9111fc0ce8995cb806
SHA256

5d78cfec3d53645a049ddf865d760f4430fd8e6b6958821326ee194f927278cb
SHA512

7c48f28000528a6ca8d481de573dd7317fa201979e17e4dcf29a8eb82e1ec891ef3ca3aefc9a5e38b17beb9b8a716c4fb8c0ab4e698e74c588dcf38e270c810e
SSDEEP

12288:kHKWvRxdYFqtaY6PeiDaO25icixdfA/d5Fd2WHZXCGO73oxzbZei2r:kHK+cgH/GaUcGhinZXCGO73Wzbdq

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.rigd
offline_id
gigF2ELYocnMQz77LhEpSoXvtYp2junk9HZFtJt1
payload_url
http://znpst.top/dl/build2.exe

http://securebiz.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-2zbBkO06mv 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: 0335gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1820-2-0x0000000001DD0000-0x0000000001EEB000-memory.dmp	family_djvu
behavioral1/memory/2436-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2436-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2436-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2436-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-59-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2984 icacls.exe

pid	process
2984	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e480978c-2981-423c-b9f5-eee68e6fae53\\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe\" --AutoStart"	8ea72364aef6738debc38a72456ae875_JaffaCakes118.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

3 api.2ip.ua
4 api.2ip.ua
9 api.2ip.ua

flow	ioc
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

description	pid	process	target process
PID 1820 set thread context of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 set thread context of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

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

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exeicacls.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

pid	process
2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
2784	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
2784	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\e480978c-2981-423c-b9f5-eee68e6fae53" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2984
- - C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1084
  - - C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2784

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

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
7fe97a9082edb5156185b8046edce15a

SHA1
792adc30ab6ef1124d6b58763f5d10aed2b408b6

SHA256
b68cc96926abdb8a210de51296287e00ea361cfceefe8275e854a7ef8bab209b

SHA512
4d598b600842c5114f1f8c3adc732affc0f0dd9a37931665dd6c210d605812718751b7e09bf06974de0d01fe8d46fade4cc08e5e19f9a1b31dff69bd326f3cf3

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
bf299e5d9247e99df0a2c552916bba60

SHA1
4fd353bde5840eed73744756c9eb9268efacec7c

SHA256
d23081f8ddd7a37536b47c21aba14e04c9f774e4e09c507e75d32fe4babd3f2b

SHA512
45c9cf03920b3b940cd28983de4a1f8af1cb05d8d0e9efa5fddd6d2a11705da1bc0eaa6d766ad6ac7e38c1c338fe18a4412368eceb948580a3ac2fdff6460fff

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

Filesize
170B

MD5
b36a2fcb0b2c8b7832b52c66bf196060

SHA1
5941dfac3d4f1b6e88ecd2522eb784cb6c01cc27

SHA256
488d324a64f1012f9f34c7b2a48f1f02ef2da2355ebba3a064a74037c120cf72

SHA512
d3a2dee7f9a5ab25c461e9f33fbb9b5f100f3e67ef5fec0165e2a4c6a0720e82255615b38c977ec0804e09666c4d50f7eb61a18e3ff51076cf67d30a8885c613

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab2DF3.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\e480978c-2981-423c-b9f5-eee68e6fae53\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

Filesize
677KB

MD5
8ea72364aef6738debc38a72456ae875

SHA1
67fc11482612c3efda5a7d9111fc0ce8995cb806

SHA256
5d78cfec3d53645a049ddf865d760f4430fd8e6b6958821326ee194f927278cb

SHA512
7c48f28000528a6ca8d481de573dd7317fa201979e17e4dcf29a8eb82e1ec891ef3ca3aefc9a5e38b17beb9b8a716c4fb8c0ab4e698e74c588dcf38e270c810e

Download Submit
memory/1084-37-0x0000000000400000-0x0000000000530000-memory.dmp

Filesize
1.2MB

Download
memory/1084-31-0x0000000000530000-0x00000000005C2000-memory.dmp

Filesize
584KB

Download
memory/1084-33-0x0000000000400000-0x0000000000530000-memory.dmp

Filesize
1.2MB

Download
memory/1820-7-0x0000000001D30000-0x0000000001DC2000-memory.dmp

Filesize
584KB

Download
memory/1820-0-0x0000000001D30000-0x0000000001DC2000-memory.dmp

Filesize
584KB

Download
memory/1820-2-0x0000000001DD0000-0x0000000001EEB000-memory.dmp

Filesize
1.1MB

Download
memory/1820-1-0x0000000001D30000-0x0000000001DC2000-memory.dmp

Filesize
584KB

Download
memory/2436-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2436-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2436-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2436-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2436-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-59-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1820 wrote to memory of 2436	1820	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2436 wrote to memory of 2984	2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	icacls.exe
PID 2436 wrote to memory of 2984	2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	icacls.exe
PID 2436 wrote to memory of 2984	2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	icacls.exe
PID 2436 wrote to memory of 2984	2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	icacls.exe
PID 2436 wrote to memory of 1084	2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2436 wrote to memory of 1084	2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2436 wrote to memory of 1084	2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2436 wrote to memory of 1084	2436	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1084 wrote to memory of 2784	1084	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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