djvu | d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 01:13

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General

Target

JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
Size

847KB
MD5

431817479eef8167eee6154a9a20cf35
SHA1

f03240d8764d7f069b219c26057c4a5b4b28c904
SHA256

d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee
SHA512

7f9410c46268862490e2ebd7bdbd5b04d2db381dd76163c10565cc4b38b9e3ca9e4aac4d8d11f67f64f6f3dbd18720d84e92ddd9ff2e9799b0511207d1bc2de7
SSDEEP

24576:4N1UOIkbHMb2o6K1LqTj/3/S2Kj2wR+2:4j/Ikbsb2YLqTD0N

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.udla
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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-fnn5kv33Vv 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: 0435JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2568-2-0x0000000000720000-0x000000000083B000-memory.dmp	family_djvu
behavioral1/memory/1664-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1664-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1664-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1664-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2908-67-0x0000000000400000-0x0000000000537000-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
2776	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\\a05a93de-09f7-4f58-ad21-808d7033a0b2\\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe\" --AutoStart"	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.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 2568 set thread context of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2780 set thread context of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.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_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
2908	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
2908	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 2568 wrote to memory of 1664	2568	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	30
PID 1664 wrote to memory of 2776	1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	32
PID 1664 wrote to memory of 2776	1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	32
PID 1664 wrote to memory of 2776	1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	32
PID 1664 wrote to memory of 2776	1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	32
PID 1664 wrote to memory of 2780	1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	33
PID 1664 wrote to memory of 2780	1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	33
PID 1664 wrote to memory of 2780	1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	33
PID 1664 wrote to memory of 2780	1664	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	33
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34
PID 2780 wrote to memory of 2908	2780	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1664
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\a05a93de-09f7-4f58-ad21-808d7033a0b2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2776
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2780
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2908

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
2e328536f5dc8683a6731f1e2f1df19b

SHA1
49df694b2ebde2397485ed411a8288648eecce46

SHA256
d78580f49d973036718e02c1bb17b44ca0ebc377df3f45c34c3b327aacf05ed0

SHA512
23d182f824d2a737772bd48ff78f5fa7dd216f01652f9a71d32c4951e284c4c4e1c5e6e8b8a4e6de6253b946de5ed7732122f1cf62e5f8e6da877bb909d45e4c

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

Filesize
170B

MD5
bb15ff679a965ae972643b39bfaf0d3d

SHA1
5e9096490b4e535d8a7ce9d7f7a06bf04f86a3a1

SHA256
50591ec9341b2cab9ba6a98e4cc9d204642830ad393d6b6c414543a23e4921be

SHA512
29b3422af5f10e3e281e3eb6ac499cdb01138af8977bf135552523b3d1a29f38546ce86a6ae6e7b089c0daa247ff7fa5bd6208db3ce69c95a1e4283d05c90161

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabB396.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\a05a93de-09f7-4f58-ad21-808d7033a0b2\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe

Filesize
847KB

MD5
431817479eef8167eee6154a9a20cf35

SHA1
f03240d8764d7f069b219c26057c4a5b4b28c904

SHA256
d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee

SHA512
7f9410c46268862490e2ebd7bdbd5b04d2db381dd76163c10565cc4b38b9e3ca9e4aac4d8d11f67f64f6f3dbd18720d84e92ddd9ff2e9799b0511207d1bc2de7

Download Submit
memory/1664-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1664-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1664-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1664-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1664-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-0-0x0000000000330000-0x00000000003C1000-memory.dmp

Filesize
580KB

Download
memory/2568-7-0x0000000000330000-0x00000000003C1000-memory.dmp

Filesize
580KB

Download
memory/2568-2-0x0000000000720000-0x000000000083B000-memory.dmp

Filesize
1.1MB

Download
memory/2568-1-0x0000000000330000-0x00000000003C1000-memory.dmp

Filesize
580KB

Download
memory/2780-28-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2780-29-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2780-34-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2908-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2908-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download