djvu | 357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed

Analysis

max time kernel
145s
max time network
140s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 22:15

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General

Target

JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
Size

778KB
MD5

9c53d11853146233ed77de1092fb14a2
SHA1

aeb5a6d70216bae7e115d0ec369fcf4b17b82acb
SHA256

357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed
SHA512

81a9ccc0b9c537bff87589a3c5c449d2bca0c262883a2429fd609bcb4fcea4804458a3234cbf34102bb2ac12204bc030dfc49a349c6c050ab27a8b71137b7625
SSDEEP

12288:LXgJAI5MuMoW8jk58tqhTOKElwVialsxJyRKwZ9owWsQD2EbuRRFg05W0Hpq9:LGjMF8jYZLiLJqKi+wFUuxgiQ9

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.wdlo
offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
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-0S984cQ4B3 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: 0430JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2580-2-0x0000000001E30000-0x0000000001F4B000-memory.dmp	family_djvu
behavioral1/memory/2352-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2352-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2352-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2352-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-72-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-73-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-70-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2688-74-0x0000000000400000-0x0000000000537000-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
2852	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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ecaf826a-83e2-4735-9af3-9986b5fa1e1b\\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe\" --AutoStart"	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.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 2580 set thread context of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2884 set thread context of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.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_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
2688	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
2688	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2580 wrote to memory of 2352	2580	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	30
PID 2352 wrote to memory of 2852	2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	31
PID 2352 wrote to memory of 2852	2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	31
PID 2352 wrote to memory of 2852	2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	31
PID 2352 wrote to memory of 2852	2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	31
PID 2352 wrote to memory of 2884	2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	32
PID 2352 wrote to memory of 2884	2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	32
PID 2352 wrote to memory of 2884	2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	32
PID 2352 wrote to memory of 2884	2352	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	32
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33
PID 2884 wrote to memory of 2688	2884	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\ecaf826a-83e2-4735-9af3-9986b5fa1e1b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2852
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2884
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2688

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
7962fc87f79a8fdae2b77cf1a6048bdb

SHA1
4156f508824534661444ab856519a4abd7169490

SHA256
764433e23a7a81369ffac3f3566781cdcbfa423856cca32676565826a070b76b

SHA512
1642e3020c046201686ff508c70c7e0bcc2cbfd400c4a6bec607d6792606c7850527648391aa66a8870a80daaab11befab0fd66fe1ae844ca66dd9192cc66183

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

Filesize
342B

MD5
98374b0f98e68aaadcf08cd5499744ed

SHA1
2f28fe8bcfc0f4f1eed72b72ae508ae0ee047237

SHA256
9a3ac83c2fc5ed6a486fc07a222a1ea40440a6780c754ff5fbf1e59d134e6ae3

SHA512
a40f811fb55b33474ebea87c97b5d15f11f40cd3c18a60037c04fa76284f4e3b89bde4f610a5065c6f229139fba19c880e912ae3dee7bc0fe1c55970c816512b

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

Filesize
170B

MD5
59b0a802de5296baafba9995b53c5229

SHA1
541304a7c283fceba5dc372d1cbbd5ae9318bac2

SHA256
8063107916df9a61c09bce888557af96bb7a9967129dbf877c37ac8fde46a633

SHA512
d20bf9a54b019efed8280624d695d7ff5f105288a1d71bb19884b0bb0a40c7eda74076debf2201f216608b5e3a756fc2ef9a4fe36726d9bc5da80a2802328f03

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab9251.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\ecaf826a-83e2-4735-9af3-9986b5fa1e1b\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe

Filesize
778KB

MD5
9c53d11853146233ed77de1092fb14a2

SHA1
aeb5a6d70216bae7e115d0ec369fcf4b17b82acb

SHA256
357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed

SHA512
81a9ccc0b9c537bff87589a3c5c449d2bca0c262883a2429fd609bcb4fcea4804458a3234cbf34102bb2ac12204bc030dfc49a349c6c050ab27a8b71137b7625

Download Submit
memory/2352-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2352-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2352-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2352-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2352-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2580-7-0x0000000000350000-0x00000000003E2000-memory.dmp

Filesize
584KB

Download
memory/2580-2-0x0000000001E30000-0x0000000001F4B000-memory.dmp

Filesize
1.1MB

Download
memory/2580-0-0x0000000000350000-0x00000000003E2000-memory.dmp

Filesize
584KB

Download
memory/2580-1-0x0000000000350000-0x00000000003E2000-memory.dmp

Filesize
584KB

Download
memory/2688-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-72-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-73-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-74-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2884-39-0x0000000000400000-0x00000000004EE000-memory.dmp

Filesize
952KB

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memory/2884-33-0x0000000000400000-0x00000000004EE000-memory.dmp

Filesize
952KB

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memory/2884-32-0x00000000002C0000-0x0000000000352000-memory.dmp

Filesize
584KB

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