djvu | 2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293

Analysis

max time kernel
142s
max time network
130s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 01:49

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General

Target

JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
Size

786KB
MD5

8947f64e91a8a07faf7f33620d5d02f1
SHA1

21e79ec73c9e728075611da8f4863e1cc8171583
SHA256

2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293
SHA512

0b3a216855971d85936f78756fdd5ac6109e2d76af48c20243223c216707bf8824ef560dafb2501e36d6b5ef6b56da80efd834baf849d6ba370fb6e7294f4427
SSDEEP

12288:9mQx5xkryyHK1Nz/PLMbff0fgzkPMoDhfHRy/ymr54Cb4hrENguwq+kbWxlHjv:9xxGHsUfMfymvl5yKmr5xCI+kbSHL

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/2648-2-0x00000000004F0000-0x000000000060B000-memory.dmp	family_djvu
behavioral1/memory/2664-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2664-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2664-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2664-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-70-0x0000000000400000-0x0000000000537000-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
2720	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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\561d9fd0-b2e2-4df4-bc04-a06b4015c67c\\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe\" --AutoStart"	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.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 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 1056 set thread context of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.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_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
2596	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
2596	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2648 wrote to memory of 2664	2648	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	30
PID 2664 wrote to memory of 2720	2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	31
PID 2664 wrote to memory of 2720	2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	31
PID 2664 wrote to memory of 2720	2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	31
PID 2664 wrote to memory of 2720	2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	31
PID 2664 wrote to memory of 1056	2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	32
PID 2664 wrote to memory of 1056	2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	32
PID 2664 wrote to memory of 1056	2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	32
PID 2664 wrote to memory of 1056	2664	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	32
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.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_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\561d9fd0-b2e2-4df4-bc04-a06b4015c67c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2720
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1056
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2596

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
81894b1acb905e0eada1103d02e56f55

SHA1
92b7f2e8d9d23cbb68919ea222c35e2cb4ec106d

SHA256
e6315e0cb0d65b647c3225a89535a04b87a6739954ad37376906e2d3095958b3

SHA512
ab892a8f8235c188e0974a4fe1d1f86b71e70c0bbf06c943dada230567ba38f1be54d14f43941d96e3a4901a70a4a8cafc38a2b1ff55064d4fa84054d0c38c1d

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

Filesize
342B

MD5
a57bab0d6d68ffc0f82d627f72287d40

SHA1
7ef9fda439d0577051ac1d3cf2ad840b1bd286f6

SHA256
062720559a3b2b726523880da6eb48c85e3658c22a05dc89de40db472dc25975

SHA512
590772cbccac0245a6e07b7e4adc64280fddaeee66e38c784c54dec52c78aabbc102acaaae1a0cff864dfd7475043df487ae5e6328df1781b4949cd8ad0935a7

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

Filesize
170B

MD5
4a822866b631b793d0a7768b394c2353

SHA1
c7549d863283605b412e4e6e3795e96fb71c1f17

SHA256
8eb5ab4e208cbf7a1d44ffaeff6fefda7a5c94649cfe76e805b835c05b776fed

SHA512
2a34357fc7975fa9e6688cbb30635e3bc0a6fda73a1dd3c50400a52736849b08170133385fb760842331566059cfa332a95ca29421c5a2c0b3c3c586836062de

Download Submit
C:\Users\Admin\AppData\Local\561d9fd0-b2e2-4df4-bc04-a06b4015c67c\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe

Filesize
786KB

MD5
8947f64e91a8a07faf7f33620d5d02f1

SHA1
21e79ec73c9e728075611da8f4863e1cc8171583

SHA256
2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293

SHA512
0b3a216855971d85936f78756fdd5ac6109e2d76af48c20243223c216707bf8824ef560dafb2501e36d6b5ef6b56da80efd834baf849d6ba370fb6e7294f4427

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab1851.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1056-30-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/1056-36-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/1056-31-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2596-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-2-0x00000000004F0000-0x000000000060B000-memory.dmp

Filesize
1.1MB

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

Filesize
584KB

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

Filesize
584KB

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

Filesize
584KB

Download
memory/2664-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download