djvu | 1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd

Analysis

max time kernel
148s
max time network
135s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/12/2024, 16:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
Size

726KB
MD5

bd8348f257f944a8370b288dfbfdf82b
SHA1

afe3563b6c144d1ecff4e6cafba729eb95ad1d02
SHA256

1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd
SHA512

28a6559b22323bc9bf890908faa20891cddae2412aabf5605510c45196c801c113cbacadc6a5cabf2fbaeb9dd99d163fa6344cb60c87da01a18c8d39f3b0f69a
SSDEEP

12288:3su6/9Myyx1urAWWfinD5jwJtIATwvnEx9oQpG43g1O5s5FHiHLiqv1CrDc:3st/9jyx1urAWWfinDKJVTkw9DfcAMfc

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/3012-2-0x0000000001DA0000-0x0000000001EBB000-memory.dmp	family_djvu
behavioral1/memory/1748-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1748-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1748-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1748-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2836-66-0x0000000000400000-0x0000000000537000-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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\5995e06f-69f1-4588-837d-d0d0b6565b64\\JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe\" --AutoStart"	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.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 3012 set thread context of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 2636 set thread context of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.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_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
2836	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
2836	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 3012 wrote to memory of 1748	3012	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	31
PID 1748 wrote to memory of 2748	1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	33
PID 1748 wrote to memory of 2748	1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	33
PID 1748 wrote to memory of 2748	1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	33
PID 1748 wrote to memory of 2748	1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	33
PID 1748 wrote to memory of 2636	1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	34
PID 1748 wrote to memory of 2636	1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	34
PID 1748 wrote to memory of 2636	1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	34
PID 1748 wrote to memory of 2636	1748	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	34
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35
PID 2636 wrote to memory of 2836	2636	JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1748
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\5995e06f-69f1-4588-837d-d0d0b6565b64" /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_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2636
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2836

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
1f9b96435ad8ec16ddee24e933ca711c

SHA1
ab4eb58d00326809f11524d31ca6abed3784a24b

SHA256
df52cfd4a999da073948f7d048467b6741bb5a4cf6ee0ec03ceff6763124a4b2

SHA512
6865410dd8e21525ca9c44ce80dc22e44f1c23a5f5ddd837912343cb2cf7ab8abb4c4e3ea8ce71e0f65d8f8fb802c313823a2de628156d11ab32c94e1d04d55f

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

Filesize
170B

MD5
c695479bff7de6ac6e00f793d01fdda2

SHA1
127f54b2f12c8a8d08fdd128b0022045d8097819

SHA256
772909da267ea34d977b1ad8ba24afacc9f1d3827d33b4140e16c74dd574c6d8

SHA512
0cbb1b29981962d3259c3c48e5551aaba0449911078960ace8a757d48ca8ff86707b361c5e3319dff49604a47015214ee4e1e98cf5239ab39e02704ec61bd7f3

Download Submit
C:\Users\Admin\AppData\Local\5995e06f-69f1-4588-837d-d0d0b6565b64\JaffaCakes118_1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe

Filesize
726KB

MD5
bd8348f257f944a8370b288dfbfdf82b

SHA1
afe3563b6c144d1ecff4e6cafba729eb95ad1d02

SHA256
1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd

SHA512
28a6559b22323bc9bf890908faa20891cddae2412aabf5605510c45196c801c113cbacadc6a5cabf2fbaeb9dd99d163fa6344cb60c87da01a18c8d39f3b0f69a

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF1FD.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1748-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1748-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1748-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1748-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1748-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-27-0x0000000000300000-0x0000000000391000-memory.dmp

Filesize
580KB

Download
memory/2636-28-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2636-33-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2836-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2836-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2836-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2836-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2836-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2836-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2836-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2836-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2836-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2836-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-0-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download
memory/3012-1-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download
memory/3012-2-0x0000000001DA0000-0x0000000001EBB000-memory.dmp

Filesize
1.1MB

Download
memory/3012-7-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download