djvu | af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738

Analysis

max time kernel
148s
max time network
126s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 21:26

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General

Target

JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
Size

761KB
MD5

512a0fbd3b7535d495580dfb44b6b33c
SHA1

6c324dce8586751d63004cc777d3a9264a067ec6
SHA256

af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738
SHA512

c4cfc33ec5beef2ad8a5f7ee1b4dc55aba53af80d2ef18cf1e06ec05b74c2691a7d2b85ecf3bb1cd0bad9fa7f98b3f338b48567fd3cec34e9e50dd633b863ae4
SSDEEP

12288:rkpg4pbED3TuOQ3VBBqVj0qTqIiaexND0ThY73CDHRsVZQVClkgZ44djA+dX4EG:oT5ED3TurPyjz2IiaeqYzWs3QAvZ44d8

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.dmay
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: 0458JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2368-2-0x0000000001D20000-0x0000000001E3B000-memory.dmp	family_djvu
behavioral1/memory/2016-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2016-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2016-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2016-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2912-64-0x0000000000400000-0x0000000000537000-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
2748	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\776a5c27-d7e6-40b7-b8e8-0f026edc43c5\\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe\" --AutoStart"	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.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
9	api.2ip.ua
4	api.2ip.ua
5	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2368 set thread context of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2752 set thread context of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
2912	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
2912	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2368 wrote to memory of 2016	2368	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	30
PID 2016 wrote to memory of 2748	2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	32
PID 2016 wrote to memory of 2748	2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	32
PID 2016 wrote to memory of 2748	2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	32
PID 2016 wrote to memory of 2748	2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	32
PID 2016 wrote to memory of 2752	2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	33
PID 2016 wrote to memory of 2752	2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	33
PID 2016 wrote to memory of 2752	2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	33
PID 2016 wrote to memory of 2752	2016	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	33
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35
PID 2752 wrote to memory of 2912	2752	JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2016
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\776a5c27-d7e6-40b7-b8e8-0f026edc43c5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2748
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2752
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2912

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
cd95ca4038a8f7ca3fc05e412cc8c441

SHA1
926a0e0d9cd8d686e1a8c20d69f3544c834870e3

SHA256
f0e2a369eff9fcb37b71637a66049fcd7514740a7d4a31dcaf0de5649b5c335f

SHA512
706e8c23650fe05f52e4ec526b08a912fe140660cb5669bbb2da132aca15edc7bc8870d4e24fc81c80484690ebf68a0488e8e7c57a36b2489c730d00aae6bcbb

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

Filesize
170B

MD5
8e9542504c2ce31d3978413454032303

SHA1
db9b3b7aee00d8c2d8e4d09d162510af8b82f2a5

SHA256
ec99ffe54d9dcdd52fb95b0058289fda09b58b7e9ae5dd79d5d27afe8a231e5d

SHA512
9dbbcb6806bfecda960e427983367c7e7b257bd681540c883a601a1aeaa42f02ccc1efb03da0b6ff5ab8472ba4a0aafeeb86835046a4b468508523a6787a00ba

Download Submit
C:\Users\Admin\AppData\Local\776a5c27-d7e6-40b7-b8e8-0f026edc43c5\JaffaCakes118_af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738.exe

Filesize
761KB

MD5
512a0fbd3b7535d495580dfb44b6b33c

SHA1
6c324dce8586751d63004cc777d3a9264a067ec6

SHA256
af26c6aefe5d98ff78be1a8760dc3bfc12e803be297a076854a7111b266da738

SHA512
c4cfc33ec5beef2ad8a5f7ee1b4dc55aba53af80d2ef18cf1e06ec05b74c2691a7d2b85ecf3bb1cd0bad9fa7f98b3f338b48567fd3cec34e9e50dd633b863ae4

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabD172.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2016-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2016-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2016-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2016-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2016-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2368-6-0x00000000002D0000-0x0000000000362000-memory.dmp

Filesize
584KB

Download
memory/2368-0-0x00000000002D0000-0x0000000000362000-memory.dmp

Filesize
584KB

Download
memory/2368-2-0x0000000001D20000-0x0000000001E3B000-memory.dmp

Filesize
1.1MB

Download
memory/2368-1-0x00000000002D0000-0x0000000000362000-memory.dmp

Filesize
584KB

Download
memory/2752-33-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/2752-28-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/2752-27-0x00000000004D0000-0x0000000000562000-memory.dmp

Filesize
584KB

Download
memory/2912-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download