djvu | 44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc

Analysis

max time kernel
141s
max time network
145s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 21:46

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General

Target

JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
Size

760KB
MD5

e0f1731cf5176234398434bc8b757a25
SHA1

058c6adfa1ec36ef6558d3c0409e2c7c24321fa5
SHA256

44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc
SHA512

a0b77283ababd0cdd1251423110d1da098bae93789bf137cbdad72c08ab0dc0cb7c9e06fba187797ca3893769600d42fba1c00e2e835dc17143278a97a77c5cc
SSDEEP

12288:7FY1uEuB249uwhD9jufHM5GUUVyCzcAa5/ehLybpmz2keSkilhW:y0Eu84jp0U5GUIyCzcpNeSmz2JiTW

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.msjd
offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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-FT7BNVbXC9 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: 0455JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2660-2-0x0000000001E50000-0x0000000001F6B000-memory.dmp	family_djvu
behavioral1/memory/3008-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3008-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3008-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3008-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2716-70-0x0000000000400000-0x0000000000537000-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
2928	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\\77226714-5b7e-485b-99ca-53b721deea9b\\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe\" --AutoStart"	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.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 2660 set thread context of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2740 set thread context of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32

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_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
2716	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
2716	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 2660 wrote to memory of 3008	2660	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	29
PID 3008 wrote to memory of 2928	3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	30
PID 3008 wrote to memory of 2928	3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	30
PID 3008 wrote to memory of 2928	3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	30
PID 3008 wrote to memory of 2928	3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	30
PID 3008 wrote to memory of 2740	3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	31
PID 3008 wrote to memory of 2740	3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	31
PID 3008 wrote to memory of 2740	3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	31
PID 3008 wrote to memory of 2740	3008	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	31
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32
PID 2740 wrote to memory of 2716	2740	JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3008
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\77226714-5b7e-485b-99ca-53b721deea9b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2928
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2740
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2716

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

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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
8d3c6afe7b01e37409b6ede7c3614fa8

SHA1
fba602ec66a4bb49cb49332b06b09a9b086ec38c

SHA256
a6b87b7ab83123f6599e876305e9d3e623051f68bb77c3cc180ce455068722ba

SHA512
c55e172ae92f844f9cfca40207b4ad3071618408de94273cd6d2ddc8692aa7190f13a1841618f4d431c1e3b8873572b5dd557ed600fd5dc77661f2109af7dd4f

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

Filesize
342B

MD5
2e884ec81fe7c1b621c9538cf49f638c

SHA1
50d0d8b3e0d8e728e6244867ef2d0bbdece7bcac

SHA256
2cfd607d14bab80ad2642c359aa3ae636122de3206422d7b73dc29ea166c82fe

SHA512
8d5bbfe58312daee6e1422dbdcb5f5e00ecb04df77c4951757847ac3a138ef6e3e26865b93dc29e6a3a76d5b943927081d26b37e3c64e33b105204cc201fbdda

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

Filesize
170B

MD5
ec37443aba0b79508ec9b97a4e99d448

SHA1
412a25052d4560999d939b2485d885dd5b7f71d6

SHA256
164376df46eccfcebe986d2f8a2a4946a1d36409c8d81b95fcba1cbd7dc68f2b

SHA512
9b62c2b28aa8ad0c88bbafe813bc4b8b2494ad29beb7665aa04a10713337c672cc1fba20f5e037d7b546c81d4b3a6bcc1e7e6a580704db17779ddd6581047d32

Download Submit
C:\Users\Admin\AppData\Local\77226714-5b7e-485b-99ca-53b721deea9b\JaffaCakes118_44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc.exe

Filesize
760KB

MD5
e0f1731cf5176234398434bc8b757a25

SHA1
058c6adfa1ec36ef6558d3c0409e2c7c24321fa5

SHA256
44a57c75988c957e7386851233f49f44876867ab87b83aaf465adf19a105f0cc

SHA512
a0b77283ababd0cdd1251423110d1da098bae93789bf137cbdad72c08ab0dc0cb7c9e06fba187797ca3893769600d42fba1c00e2e835dc17143278a97a77c5cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab60D5.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2660-1-0x0000000000250000-0x00000000002E1000-memory.dmp

Filesize
580KB

Download
memory/2660-2-0x0000000001E50000-0x0000000001F6B000-memory.dmp

Filesize
1.1MB

Download
memory/2660-0-0x0000000000250000-0x00000000002E1000-memory.dmp

Filesize
580KB

Download
memory/2660-6-0x0000000000250000-0x00000000002E1000-memory.dmp

Filesize
580KB

Download
memory/2716-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2716-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2716-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2716-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2716-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2716-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2716-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2716-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2716-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2716-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2740-30-0x0000000001C80000-0x0000000001D11000-memory.dmp

Filesize
580KB

Download
memory/2740-31-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2740-36-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3008-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3008-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3008-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3008-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3008-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download