djvu | f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c

Analysis

max time kernel
145s
max time network
133s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 19:07

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General

Target

JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
Size

767KB
MD5

d625f0deefebe3fce34deb6437f4df96
SHA1

57709bd0f7bf40ff26978a32419abbe14cf880a5
SHA256

f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c
SHA512

a35ccd19a7f3b7a8e3db44b0cbac5210721f941d671b105b613dcdc103f37ccc1f1cd57681863821840352499e9b7912be29872048799b42dc2aecf0bdbab879
SSDEEP

12288:snTpZMYbuAnGaCQsHdfHfd/3AYlQ7JtvL4WgX7FzGeuzYajHyf:CZMg+p/dR2tvL4W4P0HG

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.dwqs
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.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-c565B1ILoZ 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: 0450Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2388-5-0x00000000004F0000-0x000000000060B000-memory.dmp	family_djvu
behavioral1/memory/2320-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2320-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2320-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2320-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-68-0x0000000000400000-0x0000000000537000-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
2876	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\\ffb7a525-9cad-4761-9a9b-dbdae380287f\\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe\" --AutoStart"	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.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 2388 set thread context of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2752 set thread context of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
2724	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
2724	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2388 wrote to memory of 2320	2388	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	30
PID 2320 wrote to memory of 2876	2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	32
PID 2320 wrote to memory of 2876	2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	32
PID 2320 wrote to memory of 2876	2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	32
PID 2320 wrote to memory of 2876	2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	32
PID 2320 wrote to memory of 2752	2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	33
PID 2320 wrote to memory of 2752	2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	33
PID 2320 wrote to memory of 2752	2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	33
PID 2320 wrote to memory of 2752	2320	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	33
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34
PID 2752 wrote to memory of 2724	2752	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\ffb7a525-9cad-4761-9a9b-dbdae380287f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2876
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2752
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2724

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
95d416b2ce5c8758220288279e1661a3

SHA1
d3a8cd3e8755e0822cace5e79523c219478585fe

SHA256
d85484313bca7cfaa3cde2ca17d4890d5ab5a24402063c1498b5a6d6f70122bd

SHA512
0c73559d52c747677307b7debd5b177a8ecaa4b2f2267a9b8a74f5490914cd79d05820af43a36da6ebb82d4ce225395a396a7146e2bb372a1c61be2b8ec2c100

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

Filesize
170B

MD5
a6292601451869e6a65d964897b6b1e6

SHA1
0459d4b26a77e829ae169406c5919acb6451fea1

SHA256
336d7e08a28a234038e8f5df8ba287041bdb2b125d2a203f7d59190c05d99a0b

SHA512
6edb2b5dbbc8d4339801420d7616090ffa7cea8a0b6b6be5e9d66b8f94cbb8a39e049d169eb8144e650333bac0cc0687a0a91ab08ddaf9ce916a87dd94aced77

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabB377.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\ffb7a525-9cad-4761-9a9b-dbdae380287f\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe

Filesize
767KB

MD5
d625f0deefebe3fce34deb6437f4df96

SHA1
57709bd0f7bf40ff26978a32419abbe14cf880a5

SHA256
f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c

SHA512
a35ccd19a7f3b7a8e3db44b0cbac5210721f941d671b105b613dcdc103f37ccc1f1cd57681863821840352499e9b7912be29872048799b42dc2aecf0bdbab879

Download Submit
memory/2320-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2320-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2320-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2320-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2320-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2388-49-0x00000000004F0000-0x000000000060B000-memory.dmp

Filesize
1.1MB

Download
memory/2388-5-0x00000000004F0000-0x000000000060B000-memory.dmp

Filesize
1.1MB

Download
memory/2388-6-0x0000000000360000-0x00000000003F2000-memory.dmp

Filesize
584KB

Download
memory/2388-0-0x0000000000360000-0x00000000003F2000-memory.dmp

Filesize
584KB

Download
memory/2388-1-0x0000000000360000-0x00000000003F2000-memory.dmp

Filesize
584KB

Download
memory/2724-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2752-32-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2752-28-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2752-27-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download