djvu | cc2d59e5fe1823c860fa7b4996f8b5be24bbc4da15b757ea477ef3864031fac1

Analysis

max time kernel
148s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2024, 13:02

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General

Target

cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Size

772KB
MD5

cd220a082a015e31b48905223ae4d90e
SHA1

4763eb2dcdf87d07dd18e176e21e3a676aa79bf4
SHA256

cc2d59e5fe1823c860fa7b4996f8b5be24bbc4da15b757ea477ef3864031fac1
SHA512

d53fec6f9418e38f511afa61e2c54641a8fa51960f58293a47e226f6c938de2e1d4f3338a18e11f65da338f859a217b42fc1ce1d783acd116f5efb8fe354716b
SSDEEP

12288:ysbay2bWS7Njlewp2ibfsI4/nX/tE59zXgWwfgLoS1F2K2EglvP8j9C5DY:ysbaLb33Tp2w0RntgzyoV/2EQvw9

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 19 IoCs

resource	yara_rule
behavioral2/memory/336-2-0x0000000004BC0000-0x0000000004CDB000-memory.dmp	family_djvu
behavioral2/memory/848-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/848-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/848-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/848-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/848-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-41-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1088-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1088-59-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2812-364-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu
Renames multiple (150) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
1088	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3008	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a81b897b-e7c3-4b32-8533-7e14b1173abc\\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe\" --AutoStart"	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe

Looks up external IP address via web service 4 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
53	api.2ip.ua
11	api.2ip.ua
12	api.2ip.ua
18	api.2ip.ua

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 336 set thread context of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 780 set thread context of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 3988 set thread context of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99

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	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
848	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
848	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
2812	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
2812	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
1088	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
1088	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
2812	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
2812	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 336 wrote to memory of 848	336	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	84
PID 848 wrote to memory of 3008	848	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	85
PID 848 wrote to memory of 3008	848	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	85
PID 848 wrote to memory of 3008	848	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	85
PID 848 wrote to memory of 780	848	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	86
PID 848 wrote to memory of 780	848	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	86
PID 848 wrote to memory of 780	848	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	86
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 780 wrote to memory of 2812	780	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	88
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99
PID 3988 wrote to memory of 1088	3988	cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe	99

C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:336
- C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_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:848
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3008
- - C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:780
  - - C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2812

C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe --Task
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3988
- C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe --Task
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1088

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

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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
e61851c9aaf248295e42f8f2483d3eb3

SHA1
7097d5d9283cf66f7c96ee514e666a4be5e7e638

SHA256
3bff562370467a3e2dce396d6e9a0539c05b721357508173e110a2a080a9f9dc

SHA512
4b6163b95c92a435c096426b8b12203ceb92b6b3a29d744d63fa67032c3f719b78fafccaf1a3f12d04175a1ac2de49c461505f0c6e040d1ac11a8ed0b8bdf90b

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

Filesize
170B

MD5
e11ff870e823e0d3db523efa9809f89a

SHA1
c051225a9eaf1ae2df31f9500cac6b03d9ab1b5b

SHA256
c28b958810d79fa7f8cfe438491570b120669dc4a6544e1482df0290f6e60ff9

SHA512
0d2135539d5a64cb857f7198388c0a7c9c3a762042a6da192732e24461d6976be63fb2e8b7761b4646955c1a888727c63048c43c1e426a3dbdf2886bc1f35c3b

Download Submit
C:\Users\Admin\AppData\Local\a81b897b-e7c3-4b32-8533-7e14b1173abc\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe

Filesize
772KB

MD5
cd220a082a015e31b48905223ae4d90e

SHA1
4763eb2dcdf87d07dd18e176e21e3a676aa79bf4

SHA256
cc2d59e5fe1823c860fa7b4996f8b5be24bbc4da15b757ea477ef3864031fac1

SHA512
d53fec6f9418e38f511afa61e2c54641a8fa51960f58293a47e226f6c938de2e1d4f3338a18e11f65da338f859a217b42fc1ce1d783acd116f5efb8fe354716b

Download Submit
memory/336-1-0x0000000004A60000-0x0000000004AF6000-memory.dmp

Filesize
600KB

Download
memory/336-2-0x0000000004BC0000-0x0000000004CDB000-memory.dmp

Filesize
1.1MB

Download
memory/848-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/848-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/848-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/848-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/848-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1088-59-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1088-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-41-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-364-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download