djvu | d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0

Analysis

max time kernel
150s
max time network
130s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
28/12/2024, 22:15

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General

Target

JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
Size

816KB
MD5

73d0e43f87a8d15cc8b6849fe15bc438
SHA1

79c20772f11626abfe03fdc3973e20e01796dc58
SHA256

d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0
SHA512

3ffc7d051337a4cfb6a98ef75ab9f1083cf00ea141e10b64894dc8341208232c9bccf7a3725071c18940e3f4daa9d4d6283790c8fdc5713bde9a2bd6270842e6
SSDEEP

24576:93QE0HSdFy/rvIvaQ/QbctEq3+fok9/a5cQjbNgEN:93QE0HmFKrTQ/jtb+foaa5cA+C

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.ifla
offline_id
e8w5MeiBrZVoHLoloPm9MNlKBzXH70BB3B2KQ7t1
payload_url
http://zerit.top/dl/build2.exe

http://ugll.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-2w6I3WpXEh 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: 0478JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 14 IoCs

resource	yara_rule
behavioral1/memory/2172-2-0x00000000044A0000-0x00000000045BB000-memory.dmp	family_djvu
behavioral1/memory/1800-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1800-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1800-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1800-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-57-0x0000000000400000-0x0000000000537000-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
2840	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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2d0c9c58-56bf-4587-ba86-dce3a5303d03\\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe\" --AutoStart"	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.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 2172 set thread context of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2812 set thread context of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.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_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
2848	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
2848	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 2172 wrote to memory of 1800	2172	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	30
PID 1800 wrote to memory of 2840	1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	33
PID 1800 wrote to memory of 2840	1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	33
PID 1800 wrote to memory of 2840	1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	33
PID 1800 wrote to memory of 2840	1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	33
PID 1800 wrote to memory of 2812	1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	34
PID 1800 wrote to memory of 2812	1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	34
PID 1800 wrote to memory of 2812	1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	34
PID 1800 wrote to memory of 2812	1800	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	34
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35
PID 2812 wrote to memory of 2848	2812	JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1800
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\2d0c9c58-56bf-4587-ba86-dce3a5303d03" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2840
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2812
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2848

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
c59d35a5e0d1ae9c35f01867dfff4f4e

SHA1
ec47e662e08da8e8c28910f637f6e6a9be4ee0be

SHA256
27113041835e282c0df6773c24edfd00b9fcd142b414ed63c485cbd85c8782c6

SHA512
2dfdb52480bac2ff1a8bd14c84a5b03e650c7c6beff76da211bd26147fb9334284c86048e1eeae1e914a339447731bf411c595b46eb33eb3e70f19bbb8bd89b5

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

Filesize
170B

MD5
b753f0b83cd782a2f4e0f7091ed58d4a

SHA1
3a08bc4bd890685d7c0f3b6db80a1237a4a03864

SHA256
31c4b3f82c153db19e2a79013c95e3dc32dd53414c9efc373baaf67e3a47bef3

SHA512
6b9dce38c7c633b709d928f760bedf627428c88f8eb11107ad5ba13d40d4b35a74e1fb7684fa6138038c9e864b63105b589041fcec34551bb001f214f9a7422a

Download Submit
C:\Users\Admin\AppData\Local\2d0c9c58-56bf-4587-ba86-dce3a5303d03\JaffaCakes118_d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0.exe

Filesize
816KB

MD5
73d0e43f87a8d15cc8b6849fe15bc438

SHA1
79c20772f11626abfe03fdc3973e20e01796dc58

SHA256
d71649630eb33a1114631e63be7d2ef72690b9c1bf969a15bb45268f7ea703f0

SHA512
3ffc7d051337a4cfb6a98ef75ab9f1083cf00ea141e10b64894dc8341208232c9bccf7a3725071c18940e3f4daa9d4d6283790c8fdc5713bde9a2bd6270842e6

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabDCF7.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1800-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1800-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1800-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1800-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1800-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2172-1-0x0000000002C60000-0x0000000002CF2000-memory.dmp

Filesize
584KB

Download
memory/2172-0-0x0000000002C60000-0x0000000002CF2000-memory.dmp

Filesize
584KB

Download
memory/2172-7-0x0000000002C60000-0x0000000002CF2000-memory.dmp

Filesize
584KB

Download
memory/2172-2-0x00000000044A0000-0x00000000045BB000-memory.dmp

Filesize
1.1MB

Download
memory/2812-30-0x00000000002D0000-0x0000000000362000-memory.dmp

Filesize
584KB

Download
memory/2848-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download