djvu | aad0854fb6d2fa53eca336eeaca4b6fbe3c7a0b038b992e52bc0623eb8f7ae2f

Analysis

max time kernel
146s
max time network
127s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09/12/2024, 14:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
Size

782KB
MD5

da2ce64532fe32372e34458b02c0e032
SHA1

0f5cc19834f2dcead03d3e62fa39a26c3772b04a
SHA256

aad0854fb6d2fa53eca336eeaca4b6fbe3c7a0b038b992e52bc0623eb8f7ae2f
SHA512

9e436a1ed1a2c1a9833831c661c3f9e741f760251c6ab4a02b59c2dac4ae5b57ac0bf9395aac63c27f24cf1230d72093f9c413a0e16ba323f0714d22870d589e
SSDEEP

24576:ouaEEXz/tVsSAo7xUv9J1UY6BRvcXzrX/I/i+:oXPhVsSAeGVJZ6BOD7O

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.tisc
offline_id
uFHwN7bjwCkJEeUg8JHISzLqrwudidH8XsPzHDt1
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-1JwFK5rT39 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: 0336gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2432-2-0x0000000000A00000-0x0000000000B1B000-memory.dmp	family_djvu
behavioral1/memory/2216-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2216-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2216-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2216-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-59-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-58-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-60-0x0000000000400000-0x0000000000537000-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
3020	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\c0e7eabf-0b5b-4f50-9334-8852211eec34\\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe\" --AutoStart"	da2ce64532fe32372e34458b02c0e032_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.

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2432 set thread context of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2908 set thread context of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.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	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
2796	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
2796	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2216	2432	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	30
PID 2216 wrote to memory of 3020	2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	32
PID 2216 wrote to memory of 3020	2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	32
PID 2216 wrote to memory of 3020	2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	32
PID 2216 wrote to memory of 3020	2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	32
PID 2216 wrote to memory of 2908	2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	33
PID 2216 wrote to memory of 2908	2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	33
PID 2216 wrote to memory of 2908	2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	33
PID 2216 wrote to memory of 2908	2216	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	33
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34
PID 2908 wrote to memory of 2796	2908	da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe	34

C:\Users\Admin\AppData\Local\Temp\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2216
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\c0e7eabf-0b5b-4f50-9334-8852211eec34" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3020
- - C:\Users\Admin\AppData\Local\Temp\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2908
  - - C:\Users\Admin\AppData\Local\Temp\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2796

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

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
51841967f80fee6d1004b19c95cd2b2d

SHA1
893e34317e6bb59350978ba87fb40b756f090853

SHA256
d89a23f86420c37ca5fcf8bc717a43b41899d8bde485fcd0f1ade0e816bb606a

SHA512
974cec0a72cbb161ff50b0cc6d1c6ef64a92f84bf1e63927ca6803ed13974673d1d363e66943d9a376d50bf9dbea52bb3ec2eb20b4621ff1ec62c5a33ecc34ee

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

Filesize
170B

MD5
168e52ab3f6cac9f36fda879ab62fa30

SHA1
a9b59a62eaf921741a53a9068a64a8c2473d48a4

SHA256
75187d8ab0293ad6e1542606a63592003be1286569656ab0bb32a797a7418040

SHA512
2fd45b90e1033d6ec17d23e6f6b0687ec8513bbd0ea673f1f75f762d94f92ea38ac53864b43a85d75d8da2406b3942da839a88a79ac99bf42f4eae0489763923

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabA3CE.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\c0e7eabf-0b5b-4f50-9334-8852211eec34\da2ce64532fe32372e34458b02c0e032_JaffaCakes118.exe

Filesize
782KB

MD5
da2ce64532fe32372e34458b02c0e032

SHA1
0f5cc19834f2dcead03d3e62fa39a26c3772b04a

SHA256
aad0854fb6d2fa53eca336eeaca4b6fbe3c7a0b038b992e52bc0623eb8f7ae2f

SHA512
9e436a1ed1a2c1a9833831c661c3f9e741f760251c6ab4a02b59c2dac4ae5b57ac0bf9395aac63c27f24cf1230d72093f9c413a0e16ba323f0714d22870d589e

Download Submit
memory/2216-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2216-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2216-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2216-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2216-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2432-6-0x0000000000960000-0x00000000009F1000-memory.dmp

Filesize
580KB

Download
memory/2432-0-0x0000000000960000-0x00000000009F1000-memory.dmp

Filesize
580KB

Download
memory/2432-1-0x0000000000960000-0x00000000009F1000-memory.dmp

Filesize
580KB

Download
memory/2432-2-0x0000000000A00000-0x0000000000B1B000-memory.dmp

Filesize
1.1MB

Download
memory/2796-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-59-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-58-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-35-0x0000000000400000-0x00000000008F3000-memory.dmp

Filesize
4.9MB

Download
memory/2908-29-0x00000000002A0000-0x0000000000331000-memory.dmp

Filesize
580KB

Download