djvu | cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 17:17

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General

Target

JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Size

800KB
MD5

215ef8c9fd78b2413067cafab6c84f40
SHA1

47cbc8b9298d6a43c6699b6ce8325951f0d98a9b
SHA256

cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353
SHA512

0b92f976679f49d988cf9755ee0372394ae875eda3f4a1423509f22f1c365be2641cecf7c560d37343fcc222a13a7ed00e8d74b240ded7c6aa6ad951ec22f5fb
SSDEEP

24576:vXCb54N1CCEjoQjyLonWTbemE7GKBOMcy:vXcaN1M5ooWTbqNBU

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.nuhb
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: 0453Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2656-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1792-2-0x0000000001E50000-0x0000000001F6B000-memory.dmp	family_djvu
behavioral1/memory/2656-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2656-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2656-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1856-68-0x0000000000400000-0x0000000000537000-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
2728	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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\47505eda-6fab-4bd4-82bb-1157932aad56\\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe\" --AutoStart"	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.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
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1792 set thread context of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1844 set thread context of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33

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_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
1856	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
1856	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 1792 wrote to memory of 2656	1792	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	30
PID 2656 wrote to memory of 2728	2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	31
PID 2656 wrote to memory of 2728	2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	31
PID 2656 wrote to memory of 2728	2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	31
PID 2656 wrote to memory of 2728	2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	31
PID 2656 wrote to memory of 1844	2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	32
PID 2656 wrote to memory of 1844	2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	32
PID 2656 wrote to memory of 1844	2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	32
PID 2656 wrote to memory of 1844	2656	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	32
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33
PID 1844 wrote to memory of 1856	1844	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2656
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\47505eda-6fab-4bd4-82bb-1157932aad56" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2728
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1844
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1856

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
054172c4b5758104c49f3f6d3b1292b6

SHA1
20833d7dbf0a0955ce5ed3c9fab3358194c4374f

SHA256
6e4922996ce3d6bb423c55593731f2f43db6ca8a59956d6bff2def6ee0408680

SHA512
daca1792901d4d8982649ab3914137907bc35fdcc98f30e140d1e491bdad181613cd88be9a655e5fb5014b5b14bf142c9e603b2b43564d1f969668e88ede53c6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
5dbec797cb529bb043ddf5f6e48323e7

SHA1
d99ffcffe8b3e6b07199ebb4c196df72d87bec06

SHA256
6db4c8f1bb0761128baf28288e15ac3961e7a3bbf0217dd68464ccb9001140cf

SHA512
26a1b7dbc40e6b810065125ba8078542dcf6a4b0d6a25f0e769cae3a132b79a0e159227bab3e9ab94ef090cf428ebe94809690582dbbd197d71c96912d55cbb8

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

Filesize
170B

MD5
f570f23a3fc241b39c7d05bb0ab9408f

SHA1
7293fff56d3a6d0888fac2188ee9df82784d9c3f

SHA256
14b4b5b35978cb329cedaec5002d45102bf4ef4bf40bc6d70052753f61ae2e0b

SHA512
edc371da9b14f8253b6ace01aa5574b86f5011135f33691c1693a88eb6485c06652caf04f98dec79a2d58cad9265f5adab4990e88d4859f25e501e02a2b28521

Download Submit
C:\Users\Admin\AppData\Local\47505eda-6fab-4bd4-82bb-1157932aad56\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe

Filesize
800KB

MD5
215ef8c9fd78b2413067cafab6c84f40

SHA1
47cbc8b9298d6a43c6699b6ce8325951f0d98a9b

SHA256
cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353

SHA512
0b92f976679f49d988cf9755ee0372394ae875eda3f4a1423509f22f1c365be2641cecf7c560d37343fcc222a13a7ed00e8d74b240ded7c6aa6ad951ec22f5fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab52C2.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1792-2-0x0000000001E50000-0x0000000001F6B000-memory.dmp

Filesize
1.1MB

Download
memory/1792-6-0x00000000004E0000-0x0000000000571000-memory.dmp

Filesize
580KB

Download
memory/1792-0-0x00000000004E0000-0x0000000000571000-memory.dmp

Filesize
580KB

Download
memory/1792-1-0x00000000004E0000-0x0000000000571000-memory.dmp

Filesize
580KB

Download
memory/1844-30-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/1844-31-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/1844-36-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/1856-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1856-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1856-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1856-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1856-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1856-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1856-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1856-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1856-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1856-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2656-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2656-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2656-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/2656-29-0x0000000000400000-0x0000000000537000-memory.dmp

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1.2MB

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