djvu | dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40

Analysis

max time kernel
148s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 14:15

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General

Target

JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
Size

726KB
MD5

9dd2fa5788eddc781b2e6bb53867f4fe
SHA1

4bbcad8a011874d4386dbb539522efdff3fb7353
SHA256

dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40
SHA512

c552987568205610d848f553151ee9ae01a2cc2231c65810cdc058bbf24e6103a40a10a3d9a3ebeb6a4500b5afdae026d630cf2bce9ba129d4f7acb938b2733a
SSDEEP

12288:8kQ6Gzd1Gfe7znRzkIWK8ZCQ/7i0EyfkitUU0vZfDTQ1Qcjcq4nzU:8kXGzdAOznRzxWK8Tq8kitUU0vZfDTQh

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/2672-2-0x0000000001D80000-0x0000000001E9B000-memory.dmp	family_djvu
behavioral1/memory/1444-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1444-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1444-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1444-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-64-0x0000000000400000-0x0000000000537000-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
2732	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\99478c0b-af2b-4883-b379-cc93606a6a45\\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe\" --AutoStart"	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.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 2672 set thread context of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2868 set thread context of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34

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_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
2720	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
2720	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 2672 wrote to memory of 1444	2672	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	30
PID 1444 wrote to memory of 2732	1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	32
PID 1444 wrote to memory of 2732	1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	32
PID 1444 wrote to memory of 2732	1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	32
PID 1444 wrote to memory of 2732	1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	32
PID 1444 wrote to memory of 2868	1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	33
PID 1444 wrote to memory of 2868	1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	33
PID 1444 wrote to memory of 2868	1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	33
PID 1444 wrote to memory of 2868	1444	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	33
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34
PID 2868 wrote to memory of 2720	2868	JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1444
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\99478c0b-af2b-4883-b379-cc93606a6a45" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2732
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2868
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2720

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
79de7df0d58f93bbc52fb5972db65e10

SHA1
655d64c80468624b86015cf5daba60210d4f5922

SHA256
5f105d8f7458e6ae0752bc54c534fe2c4346b8bfb23dc8d1d87d99fd0cd4289b

SHA512
e07af069d6178393670b7a35967e0807fdc3f6e42711fff88bc8d943f9d3a3ab628a401ef5fefbd7d74d905daac4c38064ba8931436b5a626a172ee1b930539f

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

Filesize
170B

MD5
a65c40a5c0340df216d507d78731ba06

SHA1
8ecac1e40ac9e4768cafb0b8cdf5293991fd03e0

SHA256
98c682da1fb8babafe18d90b5efc5648c4246e670e6e5c813ebf4ecd17682a99

SHA512
3e233e1c83b2a5dd3785d0821fcafc71f9daba3d55dcc40d132bdf29a86e8188a7756856c0a4a0bc61dab965c7dfb983179ad4b462d6c2d5d93aa97e9afcd96a

Download Submit
C:\Users\Admin\AppData\Local\99478c0b-af2b-4883-b379-cc93606a6a45\JaffaCakes118_dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40.exe

Filesize
726KB

MD5
9dd2fa5788eddc781b2e6bb53867f4fe

SHA1
4bbcad8a011874d4386dbb539522efdff3fb7353

SHA256
dde6a638de6c83cc61d466654afe2b290368437ec0edb509254f3a6db1fe3d40

SHA512
c552987568205610d848f553151ee9ae01a2cc2231c65810cdc058bbf24e6103a40a10a3d9a3ebeb6a4500b5afdae026d630cf2bce9ba129d4f7acb938b2733a

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabC265.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1444-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1444-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1444-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1444-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1444-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2672-6-0x00000000004C0000-0x0000000000551000-memory.dmp

Filesize
580KB

Download
memory/2672-2-0x0000000001D80000-0x0000000001E9B000-memory.dmp

Filesize
1.1MB

Download
memory/2672-1-0x00000000004C0000-0x0000000000551000-memory.dmp

Filesize
580KB

Download
memory/2672-0-0x00000000004C0000-0x0000000000551000-memory.dmp

Filesize
580KB

Download
memory/2720-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2868-33-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2868-28-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2868-27-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download