djvu | cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0

Analysis

max time kernel
144s
max time network
133s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 15:28

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General

Target

JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
Size

762KB
MD5

510b2f1def4dbff27c13829bc8985473
SHA1

f8428ee9d3a5a42cd0fef980691544b97518290c
SHA256

cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0
SHA512

443caeb8556bda4cbd68db231e81cc0ce169f4d6e28cf1f9fcb7d08e996c697f5d7cb658fdddde1c138c9f5558300c3432360c9d8e492888af93c5a6745c5fd2
SSDEEP

12288:8GBat53cRxg8M6xd2cfBDnUsYWcpuWVHeuuMoydDJukl+nNjh+63jVX567F6G08q:8yaYRxgF6TZTYWcpuQk1yypnhhhjVX5T

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.dwqs
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
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-c565B1ILoZ 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: 0450Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2124-2-0x0000000001DD0000-0x0000000001EEB000-memory.dmp	family_djvu
behavioral1/memory/2744-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2744-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2744-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2744-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-59-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-70-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-71-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-72-0x0000000000400000-0x0000000000537000-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
3032	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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f1692866-3142-470c-a0e4-8b119e48fbed\\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe\" --AutoStart"	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.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
3	api.2ip.ua
4	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2124 set thread context of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2808 set thread context of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.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_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
2684	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
2684	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2124 wrote to memory of 2744	2124	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	31
PID 2744 wrote to memory of 3032	2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	32
PID 2744 wrote to memory of 3032	2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	32
PID 2744 wrote to memory of 3032	2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	32
PID 2744 wrote to memory of 3032	2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	32
PID 2744 wrote to memory of 2808	2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	33
PID 2744 wrote to memory of 2808	2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	33
PID 2744 wrote to memory of 2808	2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	33
PID 2744 wrote to memory of 2808	2744	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	33
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34
PID 2808 wrote to memory of 2684	2808	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\f1692866-3142-470c-a0e4-8b119e48fbed" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3032
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2808
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2684

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
89f82fd837efdf3547523ef2e19d372c

SHA1
6ae8f90d114cff5e5f337ba200f23b456c1726dd

SHA256
1d53961ed0f34b97f58391ecbabe2155da54197eacc68ed0374dd6d15223bf54

SHA512
47ec2113521dfdc62d3cd48ee69827ddb081ad4e9262592ecb765809aa26db386082223fa6891fb8e90d694f47b04b1da7d82680cd214291d78db1ced6b863b0

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

Filesize
342B

MD5
b238101fd87837f3f9b87d16a1cc7f79

SHA1
ddbfa1431774236e61dbc06ae4183fd9d65a23e3

SHA256
03be469c9dfc0378c48bbf326af417f95b87f0c1473d990873d32a0876f7afa6

SHA512
ce945bd7225f51aba593f71e5ba2af4fd17bdd95edef1302800cddc63d0c3df6b267a92ab064be4a2759b001eca00cab1aa07a9c7998c80d4527701d4445c07e

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

Filesize
170B

MD5
4357762215bd663e0341b52d115182a4

SHA1
01a1609b7aec5199e62cbb9d0e14e0a99df122ab

SHA256
f783c2db8de424a42f92cd01842043fab18cf5a53d21c2ee47c76d7fd4b72cf3

SHA512
e7a520755251b8b595da5830b309d9d55a77f44f08b084d7f338b36f3cacf1093dec179d28b9bbb173702f5b0ffcd1ec5894899b115e73aec6de0bcde9e7dc59

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabFCD6.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\f1692866-3142-470c-a0e4-8b119e48fbed\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe

Filesize
762KB

MD5
510b2f1def4dbff27c13829bc8985473

SHA1
f8428ee9d3a5a42cd0fef980691544b97518290c

SHA256
cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0

SHA512
443caeb8556bda4cbd68db231e81cc0ce169f4d6e28cf1f9fcb7d08e996c697f5d7cb658fdddde1c138c9f5558300c3432360c9d8e492888af93c5a6745c5fd2

Download Submit
memory/2124-1-0x00000000005C0000-0x0000000000652000-memory.dmp

Filesize
584KB

Download
memory/2124-2-0x0000000001DD0000-0x0000000001EEB000-memory.dmp

Filesize
1.1MB

Download
memory/2124-0-0x00000000005C0000-0x0000000000652000-memory.dmp

Filesize
584KB

Download
memory/2124-6-0x00000000005C0000-0x0000000000652000-memory.dmp

Filesize
584KB

Download
memory/2684-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-72-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-71-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-59-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2744-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2744-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2744-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2744-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-32-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2808-33-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2808-38-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download