djvu | 6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1

Analysis

max time kernel
144s
max time network
132s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 08:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
Size

770KB
MD5

2158df35900e2a4d4f41e1de55300327
SHA1

6d574428256ab3774dbab19bb51819fcc02f6b13
SHA256

6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1
SHA512

b7c0025a975d4e096a1e3f608f874fb0039049faf43f8a1dc219560ae505ecb49eec40c912245fb1157ee8243023f9a79636918af9f60cbb87801dc8ae8dd38e
SSDEEP

12288:OT4Ml7IXlXCvYhclHw6OrWijG8ckiheT0fhGK3h4zE7TE0Nrn08EVF98+ctJKdNh:6p7nFlH4qijG8fTM/7BNr08ET9sQb4G

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.ghas
offline_id
miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1
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-0SLhZxAjRX 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: 0445JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2648-2-0x00000000004D0000-0x00000000005EB000-memory.dmp	family_djvu
behavioral1/memory/2240-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2240-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2240-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2240-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1624-70-0x0000000000400000-0x0000000000537000-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
2844	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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\db0ef66d-ab9f-4e9e-8b4e-2742293aeba8\\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe\" --AutoStart"	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.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 2648 set thread context of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2824 set thread context of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.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_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
1624	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
1624	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2648 wrote to memory of 2240	2648	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	30
PID 2240 wrote to memory of 2844	2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	31
PID 2240 wrote to memory of 2844	2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	31
PID 2240 wrote to memory of 2844	2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	31
PID 2240 wrote to memory of 2844	2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	31
PID 2240 wrote to memory of 2824	2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	32
PID 2240 wrote to memory of 2824	2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	32
PID 2240 wrote to memory of 2824	2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	32
PID 2240 wrote to memory of 2824	2240	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	32
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33
PID 2824 wrote to memory of 1624	2824	JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2240
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\db0ef66d-ab9f-4e9e-8b4e-2742293aeba8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2844
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2824
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1624

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
dcd8aa1fe899b44ace91cacfa4fe5329

SHA1
7eacab93126379406f0a677cfba289129db1118d

SHA256
4bd501ec44d55e5aea6d60e43115a975dfe80a1db3ba805a7bfdc232e8cc3fd5

SHA512
81548fbf18ed3849c265dd75e49666e6b605615a8f5bafdbd88383506e84ba1143c29d2a862492709defb9aa42c9029ffb4a8c618dc0de1262adf95fb1ce15b2

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

Filesize
342B

MD5
98632790e9fea57331041ef8b1a4c7b5

SHA1
b7daab3acb9fc6546eae825eff5fddd3e82cafc2

SHA256
0ed70277e41b0ee9d0cd8bb3a96cad1a0a5ff40318ca91c972361289feeef823

SHA512
b9c7beac9cf256e175c8b894be320aae6ea83c29bd8ac8bf8183ed8b455c82317d80ebbd2d329bfab13fee63a5131d3b4dffd0e88befcbe67e8df95cb189e9bf

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

Filesize
170B

MD5
58a93230f7bbc3063d2a55d7394c178b

SHA1
a9d513b023c7f5e53241652bb9b3d2b09691765f

SHA256
36f1515d74f82b41ff2b2be1704443c85f93ef6fb4083b6d3d891df2c54b6ff1

SHA512
010418a207d056b66a2b49a2b65a39d85a3395b84d86855fc63fbb00e058afc30bd3c9c0976bbdb86e363f52fb6cde2d0ff20853c6c2f60608bfa5b88035eec5

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab954D.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\db0ef66d-ab9f-4e9e-8b4e-2742293aeba8\JaffaCakes118_6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1.exe

Filesize
770KB

MD5
2158df35900e2a4d4f41e1de55300327

SHA1
6d574428256ab3774dbab19bb51819fcc02f6b13

SHA256
6397718b5684f02c9765ad5921a1f901f678987c8f5f2d02c669354e4915b3c1

SHA512
b7c0025a975d4e096a1e3f608f874fb0039049faf43f8a1dc219560ae505ecb49eec40c912245fb1157ee8243023f9a79636918af9f60cbb87801dc8ae8dd38e

Download Submit
memory/1624-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1624-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1624-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1624-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1624-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1624-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1624-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1624-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1624-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1624-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2240-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2240-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2240-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2240-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2240-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-2-0x00000000004D0000-0x00000000005EB000-memory.dmp

Filesize
1.1MB

Download
memory/2648-1-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2648-0-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2648-7-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2824-35-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2824-31-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2824-30-0x0000000000250000-0x00000000002E2000-memory.dmp

Filesize
584KB

Download