djvu | 04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897

Analysis

max time kernel
145s
max time network
132s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 15:29

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General

Target

JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
Size

786KB
MD5

19a0f771712c1c4f3ec34f6e15c88065
SHA1

da2c4ca1f4023d6f296daa0cf7017f84fd3ff6f5
SHA256

04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897
SHA512

690dce35069dc0ef4040f8d9da9ce6105efcc6c9c4ba06e25dfe7ed4d9029eca28a8be8410e38a58bdc4c72c1fcc9627c94103b942723741c59749d85ae3a152
SSDEEP

12288:EsEp5370ATojAyLvD6IahFn3eDLwm140c41xdHDLorRy5N0Fm+pdgItvfTiz76Z9:EHLmAY7o3ej47GDvNOdsUH5Fua

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.wdlo
offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
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-0S984cQ4B3 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: 0430JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/1924-2-0x00000000004F0000-0x000000000060B000-memory.dmp	family_djvu
behavioral1/memory/2468-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2468-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2468-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2468-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2208-66-0x0000000000400000-0x0000000000537000-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
1660	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\\e36cba5e-6bed-4bff-ae15-d55b7883fb2c\\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe\" --AutoStart"	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.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 1924 set thread context of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 2700 set thread context of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.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	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
2208	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
2208	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 1924 wrote to memory of 2468	1924	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	30
PID 2468 wrote to memory of 1660	2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	32
PID 2468 wrote to memory of 1660	2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	32
PID 2468 wrote to memory of 1660	2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	32
PID 2468 wrote to memory of 1660	2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	32
PID 2468 wrote to memory of 2700	2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	33
PID 2468 wrote to memory of 2700	2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	33
PID 2468 wrote to memory of 2700	2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	33
PID 2468 wrote to memory of 2700	2468	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	33
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35
PID 2700 wrote to memory of 2208	2700	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2468
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\e36cba5e-6bed-4bff-ae15-d55b7883fb2c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1660
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2700
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2208

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
dff3cda304dcf39dfa08ef626e9b2280

SHA1
2d4033a5114fcece83b3146776eec17837a3e118

SHA256
74aadf531c832eecc10419acf4e9404749609dd6b3aa850ba370229edcecca1a

SHA512
86ad2420fb2f9ccfc45e2e363975029a8683ae1995066523f4396810a53476c04f07578432266d39fe7c5e48cb9a63ca05498e0320d15c4ce4abb1a61724a5af

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

Filesize
170B

MD5
b683f966c28d06d5d1ee173ad9b60221

SHA1
50196d29ca69ff2501699570ceaf1ed671c7dd64

SHA256
247e8c87bf06850e422d1bd30aa5975fa55627346ca75489519b66d7381fd74e

SHA512
80a98696580c3a526e272f3cc6f2300414312bf818ac8ed7274014101effc514d35851d588f229e8c19b77728f5ed7b479794c3db41c6c981e85b60c5a0cb35f

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabCB3B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\e36cba5e-6bed-4bff-ae15-d55b7883fb2c\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe

Filesize
786KB

MD5
19a0f771712c1c4f3ec34f6e15c88065

SHA1
da2c4ca1f4023d6f296daa0cf7017f84fd3ff6f5

SHA256
04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897

SHA512
690dce35069dc0ef4040f8d9da9ce6105efcc6c9c4ba06e25dfe7ed4d9029eca28a8be8410e38a58bdc4c72c1fcc9627c94103b942723741c59749d85ae3a152

Download Submit
memory/1924-1-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/1924-2-0x00000000004F0000-0x000000000060B000-memory.dmp

Filesize
1.1MB

Download
memory/1924-0-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/1924-7-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2208-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2208-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2208-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2208-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2208-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2208-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2208-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2208-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2208-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2208-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2468-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2468-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2468-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2468-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2468-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-28-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2700-27-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download
memory/2700-34-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download