djvu | 08f290d886e67c9aaa4cf058fa166e50efc8181901773373c2123e5290edab71

Analysis

max time kernel
140s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-12-2024 11:03

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
Size

772KB
MD5

d21f65241584fd09a7f08c52f4082386
SHA1

1eea24e7cd60eae916f6f9fc06f028c9f337786b
SHA256

08f290d886e67c9aaa4cf058fa166e50efc8181901773373c2123e5290edab71
SHA512

d6643cbef2249dbb53558c06f4b3634335dc02d19f07b39555057603e5e6d8b39f4ed46b37f6de751e0d8d4cb6af26b47fe1404e40b094ff3f58479d504d3a1a
SSDEEP

24576:msddGiC4GqIG0dBtNtW95xhFvVBLB4YzZN9:ms/Msy7tyhFv3LbZ

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://astdg.top/fhsgtsspen6/get.php

Attributes

extension
.reqg
offline_id
ioYmb0jtMMtue7xjmkS3WQWGWLR8FTQhb2giQtt1
payload_url
http://securebiz.org/dl/build2.exe

http://astdg.top/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-jTbSQT8ApY 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: 0324gDrgo

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/3232-2-0x0000000004C30000-0x0000000004D4B000-memory.dmp	family_djvu
behavioral2/memory/3952-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3952-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3952-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3952-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3952-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2648-41-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1152-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1152-59-0x0000000000400000-0x0000000000537000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
1152	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4968	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7f2d38f9-aeab-48f7-b4a2-b22edbc99226\\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe\" --AutoStart"	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe

Looks up external IP address via web service 5 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
13	api.2ip.ua
18	api.2ip.ua
55	api.2ip.ua

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3232 set thread context of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 8 set thread context of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 4248 set thread context of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97

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 7 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	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3952	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
3952	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
2648	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
2648	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
1152	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
1152	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3232 wrote to memory of 3952	3232	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	82
PID 3952 wrote to memory of 4968	3952	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	83
PID 3952 wrote to memory of 4968	3952	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	83
PID 3952 wrote to memory of 4968	3952	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	83
PID 3952 wrote to memory of 8	3952	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	84
PID 3952 wrote to memory of 8	3952	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	84
PID 3952 wrote to memory of 8	3952	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	84
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 8 wrote to memory of 2648	8	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	86
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97
PID 4248 wrote to memory of 1152	4248	d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe	97

C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3232
- C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.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:3952
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\7f2d38f9-aeab-48f7-b4a2-b22edbc99226" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4968
- - C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:8
  - - C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2648

C:\Users\Admin\AppData\Local\7f2d38f9-aeab-48f7-b4a2-b22edbc99226\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\7f2d38f9-aeab-48f7-b4a2-b22edbc99226\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe --Task
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4248
- C:\Users\Admin\AppData\Local\7f2d38f9-aeab-48f7-b4a2-b22edbc99226\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\7f2d38f9-aeab-48f7-b4a2-b22edbc99226\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe --Task
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1152

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

Query Registry

T1012

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
294dd4227f2ae36add4c666b84f2b23f

SHA1
d36ff09d73a22e605e5cc6d5ad779977d4bb60e5

SHA256
fd76ade5dabcbbaa188b9c0b7e3614a1821bc3b35141fb38bdbd5288298fe594

SHA512
648c9c9ad4ed3e6c8e630ab4a16694340141ccac0fe7ca9a8f3c66b66419894204950a7717bbd1c83b4d097269a0445d9a87ac57669b3e68b929f54fa7c68de8

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

Filesize
170B

MD5
6140baa34805c1d5d2014974f80b61f8

SHA1
8172d0adc36652a576e3a87295f9574fe6b59bf8

SHA256
e36bb99263a4ae8d52ad350c526e8fdd90456533437357aea8ef40d2c625132a

SHA512
8ab9645822763a35c018a32fd2c69cedbae2b0a1e5f247ac9bbd6d04c11268ec96e9f2fe24196e068c9a5ca524f3ff26e27cbee19959e7b61ecf0884aeda02b2

Download Submit
C:\Users\Admin\AppData\Local\7f2d38f9-aeab-48f7-b4a2-b22edbc99226\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe

Filesize
772KB

MD5
d21f65241584fd09a7f08c52f4082386

SHA1
1eea24e7cd60eae916f6f9fc06f028c9f337786b

SHA256
08f290d886e67c9aaa4cf058fa166e50efc8181901773373c2123e5290edab71

SHA512
d6643cbef2249dbb53558c06f4b3634335dc02d19f07b39555057603e5e6d8b39f4ed46b37f6de751e0d8d4cb6af26b47fe1404e40b094ff3f58479d504d3a1a

Download Submit
memory/1152-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1152-59-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-41-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3232-2-0x0000000004C30000-0x0000000004D4B000-memory.dmp

Filesize
1.1MB

Download
memory/3232-1-0x0000000004A80000-0x0000000004B1C000-memory.dmp

Filesize
624KB

Download
memory/3952-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3952-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3952-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3952-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3952-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download