djvu | 1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb

Analysis

max time kernel
143s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 19:51

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General

Target

JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
Size

833KB
MD5

8f9ab746db639bb8fbe1ca26c257d96f
SHA1

0e176e872eadd55fa8729cc2bdb370341f491613
SHA256

1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb
SHA512

b5d79e4c7ece48155478121e71957d3e0152390a0bb24e1fa115a3d9b42d65a2dbf6a4f7fc7c3e154965e1e18538a70c43dddb2856bfeddbfecfda1699f2101c
SSDEEP

12288:gHCubdk8JTMLRCdaT/jOmJaodGiOss756ZVwWcsUnBBO8W+vRoJt1ErYT8Az:g/5wLRCHmVnI5VJBOa5CJZ

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.byya
offline_id
e8w5MeiBrZVoHLoloPm9MNlKBzXH70BB3B2KQ7t1
payload_url
http://zerit.top/dl/build2.exe

http://ugll.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-2w6I3WpXEh 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: 0475JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2132-2-0x0000000001E50000-0x0000000001F6B000-memory.dmp	family_djvu
behavioral1/memory/2148-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2148-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2148-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2148-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-59-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2572-61-0x0000000000400000-0x0000000000537000-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

pid	Process
2492	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\8cb74fc9-3d06-440d-9bec-fe2e5bd49f7d\\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe\" --AutoStart"	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.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
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2132 set thread context of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2484 set thread context of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31

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	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2148	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
2572	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
2572	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2132 wrote to memory of 2148	2132	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	28
PID 2148 wrote to memory of 2492	2148	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	29
PID 2148 wrote to memory of 2492	2148	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	29
PID 2148 wrote to memory of 2492	2148	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	29
PID 2148 wrote to memory of 2492	2148	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	29
PID 2148 wrote to memory of 2484	2148	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	30
PID 2148 wrote to memory of 2484	2148	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	30
PID 2148 wrote to memory of 2484	2148	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	30
PID 2148 wrote to memory of 2484	2148	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	30
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31
PID 2484 wrote to memory of 2572	2484	JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2148
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\8cb74fc9-3d06-440d-9bec-fe2e5bd49f7d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2492
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2484
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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
3e10ecc9dafd5971cd986864c418e6dd

SHA1
eabab15acbab7d2a9240ce97d649dc66fba4a187

SHA256
1c4d2ad2a7b459fd18df15a75905fa793ca1674bb58cb0cd1fd55fb985baccc3

SHA512
5a0149c78180eb571e47f0b19b969a2cc17d12de0148620235a0ae06973ca2565d1ffc39686210de35ef4c899b3130bc13d2016052a96fece7a4a6d6cfa196c7

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

Filesize
342B

MD5
a89d4c64ea0d20dd5861862ec78839d7

SHA1
29c87e149db7a63fbbc66e9a7ad639debca5d17f

SHA256
6e5481bdff0c93dfb891755fe32b5028a6c79749961764284ec5d8aaaeadb0c0

SHA512
c015a164cf398383cbaa0e86bfc37fd88695f888ca5928941bca40918f298b9bfcc2233e671dda80b6574e5087a8fa26536e4fd84059dbce66418ee2bee3f61c

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

Filesize
170B

MD5
88971a1de1b137227ea3000f0a794271

SHA1
355a10376213f4db6a04a762201f792030632134

SHA256
949b64b8b6c1b1f21e772bfd43086e66e1307a44db54527cbd21261e6e57d7e0

SHA512
dab3a0ee3279b610f804439341e2cdcc3e6fc9a8e75d14761d86d5fcd48a19e9105ff5e90e28ed9898f1222e2005a20523be103917ad0cce4c8b1e0bc0e3aae1

Download Submit
C:\Users\Admin\AppData\Local\8cb74fc9-3d06-440d-9bec-fe2e5bd49f7d\JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb.exe

Filesize
833KB

MD5
8f9ab746db639bb8fbe1ca26c257d96f

SHA1
0e176e872eadd55fa8729cc2bdb370341f491613

SHA256
1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb

SHA512
b5d79e4c7ece48155478121e71957d3e0152390a0bb24e1fa115a3d9b42d65a2dbf6a4f7fc7c3e154965e1e18538a70c43dddb2856bfeddbfecfda1699f2101c

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab516A.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2132-1-0x0000000000690000-0x0000000000721000-memory.dmp

Filesize
580KB

Download
memory/2132-2-0x0000000001E50000-0x0000000001F6B000-memory.dmp

Filesize
1.1MB

Download
memory/2132-7-0x0000000000690000-0x0000000000721000-memory.dmp

Filesize
580KB

Download
memory/2132-0-0x0000000000690000-0x0000000000721000-memory.dmp

Filesize
580KB

Download
memory/2148-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2484-36-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/2484-31-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/2484-30-0x0000000000590000-0x0000000000621000-memory.dmp

Filesize
580KB

Download
memory/2572-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2572-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2572-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2572-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2572-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2572-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2572-59-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2572-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2572-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2572-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download