djvu | 55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b

Analysis

max time kernel
145s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 23:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
Size

767KB
MD5

a7bf7a2dc43fb14168aedaa3d5b38607
SHA1

f02794710dce594ba39b80adf294e196ae17d43a
SHA256

55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b
SHA512

158cae02b822708336bc9084ec5c23fdb6c15851bbef355acdd26e4e46ddbf46241df5aaba62b554948f0041c3bdbab8d3d020f2860358cee06909e960e79fee
SSDEEP

12288:fjt5rDpu4y3/p2hvilax1Dg6N2J2IuEfXQiGLR6ApCVmMLhtCMNzBxg63STnCu+5:fvP230hvilY13dIxnGLR6mCF0MNzB+6H

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.udla
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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-fnn5kv33Vv 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: 0435JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/1680-2-0x0000000001DC0000-0x0000000001EDB000-memory.dmp	family_djvu
behavioral1/memory/2324-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2324-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2324-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2324-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-64-0x0000000000400000-0x0000000000537000-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
2640	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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\48564e0e-1b8d-4b96-8545-ed54ab94b22c\\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe\" --AutoStart"	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.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 1680 set thread context of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 2804 set thread context of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35

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_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
2932	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
2932	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 1680 wrote to memory of 2324	1680	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	31
PID 2324 wrote to memory of 2640	2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	33
PID 2324 wrote to memory of 2640	2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	33
PID 2324 wrote to memory of 2640	2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	33
PID 2324 wrote to memory of 2640	2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	33
PID 2324 wrote to memory of 2804	2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	34
PID 2324 wrote to memory of 2804	2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	34
PID 2324 wrote to memory of 2804	2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	34
PID 2324 wrote to memory of 2804	2324	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	34
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35
PID 2804 wrote to memory of 2932	2804	JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\48564e0e-1b8d-4b96-8545-ed54ab94b22c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2640
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2804
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2932

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
984878eba7b6f759874c9ee37fe82066

SHA1
bb43047b87594f1c96245aa71dfb0c00cde4047b

SHA256
fbe85a645ae50c67eab9ca064e2b2ae4d23c39194c3d347a14859905b563eb42

SHA512
6f64450a31da17c102ae20ea5365ba64752290b2d63c8feaa8e7af1dec9b0d2829073302ddb7b3e6090633cb2e7464b4c19056a07483cf536631b8cc923d5f69

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

Filesize
170B

MD5
b75e93060178a76e589a24e18363657c

SHA1
e758b67217264a9392d5f4a10c7c9688754f0008

SHA256
58faa54e0ff167726ff74a0636b115f4ffe378999f2b875b1e5a56f7b67dc34f

SHA512
9110eb4811afed3e1db181e4f8c2f1698b3516b51eafbb03a04a5cb5eba0668235f345f7aba0697510131634f33df130301d0131aef2727db9879c127c426169

Download Submit
C:\Users\Admin\AppData\Local\48564e0e-1b8d-4b96-8545-ed54ab94b22c\JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b.exe

Filesize
767KB

MD5
a7bf7a2dc43fb14168aedaa3d5b38607

SHA1
f02794710dce594ba39b80adf294e196ae17d43a

SHA256
55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b

SHA512
158cae02b822708336bc9084ec5c23fdb6c15851bbef355acdd26e4e46ddbf46241df5aaba62b554948f0041c3bdbab8d3d020f2860358cee06909e960e79fee

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabE9A4.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1680-1-0x00000000002F0000-0x0000000000381000-memory.dmp

Filesize
580KB

Download
memory/1680-2-0x0000000001DC0000-0x0000000001EDB000-memory.dmp

Filesize
1.1MB

Download
memory/1680-7-0x00000000002F0000-0x0000000000381000-memory.dmp

Filesize
580KB

Download
memory/1680-0-0x00000000002F0000-0x0000000000381000-memory.dmp

Filesize
580KB

Download
memory/2324-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2324-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2324-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2324-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2324-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-28-0x0000000000400000-0x00000000004EB000-memory.dmp

Filesize
940KB

Download
memory/2804-33-0x0000000000400000-0x00000000004EB000-memory.dmp

Filesize
940KB

Download
memory/2804-27-0x00000000004F0000-0x0000000000581000-memory.dmp

Filesize
580KB

Download
memory/2932-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download