djvu | ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124

Analysis

max time kernel
146s
max time network
127s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 03:01

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General

Target

JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
Size

794KB
MD5

6276f3e91fbcc81f925d728811438a88
SHA1

b69eb6865f69b735a114a047aed06338b151be53
SHA256

ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124
SHA512

9aaeb436e53c89dd8580988f54a6a4715d2672bf07e492cfa0946bc8de23bc085e242d5e88d591554a66d907c207cfdb192546aadac950da7916e74762369712
SSDEEP

24576:dFmLh8/c1oDhp6D/ZVyvefO/c6depxm/:dkQt6DnGepxG

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.nnuz
offline_id
vBBkNb2o254Xzi3oCcyyfpBNyU9yOZKLh1HH5Mt1
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-wYSZeUnrpa 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: 0485JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2604-2-0x0000000001DF0000-0x0000000001F0B000-memory.dmp	family_djvu
behavioral1/memory/1704-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-58-0x0000000000400000-0x0000000000537000-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
3044	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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\dc5010e1-4f16-41e0-b8e7-d55d9a3c1d17\\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe\" --AutoStart"	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.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
4	api.2ip.ua
5	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2604 set thread context of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2936 set thread context of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34

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_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
2228	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
2228	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 2604 wrote to memory of 1704	2604	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	30
PID 1704 wrote to memory of 3044	1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	32
PID 1704 wrote to memory of 3044	1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	32
PID 1704 wrote to memory of 3044	1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	32
PID 1704 wrote to memory of 3044	1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	32
PID 1704 wrote to memory of 2936	1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	33
PID 1704 wrote to memory of 2936	1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	33
PID 1704 wrote to memory of 2936	1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	33
PID 1704 wrote to memory of 2936	1704	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	33
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34
PID 2936 wrote to memory of 2228	2936	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\dc5010e1-4f16-41e0-b8e7-d55d9a3c1d17" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3044
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2936
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2228

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
608a13cb9726ea8a2721e9722335babd

SHA1
dbd8816b37c59c8093f47c0b9c1a6fa7210d5e42

SHA256
1102153420a31127ce220d57155cd79401e3236a5c492ae57e60edbf68e9c78d

SHA512
3cf642215dab6b33b821caa30fe301638c146476ef994f9add410cd89d27f0da1b3aaf8918c51335298ec6da9ec43ed8519f4618acb5e6cff5d7d662adef0fe0

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

Filesize
170B

MD5
35f8fdf3d639bf4e4301212445703a00

SHA1
6b28005ad87d07333bcd12a3755075577fcaf968

SHA256
9e3ca8dd1ee43343a8798e6050621da47bac0ee53831d0acb9ad292f9cd31b42

SHA512
66cd38978f66c69f18a0b9e8a7d46cfddc26f28ba6d59477d245a1983f6b4b6db7e02e5286fc4769630a3dedc92fddc7300bae19517a8b71360bbf3c9b1f6b1e

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabBD85.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\dc5010e1-4f16-41e0-b8e7-d55d9a3c1d17\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe

Filesize
794KB

MD5
6276f3e91fbcc81f925d728811438a88

SHA1
b69eb6865f69b735a114a047aed06338b151be53

SHA256
ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124

SHA512
9aaeb436e53c89dd8580988f54a6a4715d2672bf07e492cfa0946bc8de23bc085e242d5e88d591554a66d907c207cfdb192546aadac950da7916e74762369712

Download Submit
memory/1704-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1704-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-58-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-0-0x0000000000580000-0x0000000000612000-memory.dmp

Filesize
584KB

Download
memory/2604-1-0x0000000000580000-0x0000000000612000-memory.dmp

Filesize
584KB

Download
memory/2604-2-0x0000000001DF0000-0x0000000001F0B000-memory.dmp

Filesize
1.1MB

Download
memory/2604-7-0x0000000000580000-0x0000000000612000-memory.dmp

Filesize
584KB

Download
memory/2936-33-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/2936-28-0x00000000002C0000-0x0000000000352000-memory.dmp

Filesize
584KB

Download
memory/2936-29-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download