djvu | 2432e66cc4270a4783b2034ecc3733d93c4195b7f593dd037f6023cb9c4e90a1

Analysis

max time kernel
145s
max time network
133s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 02:18

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General

Target

5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
Size

816KB
MD5

f03ed8fa824e035977f441d622d6a9aa
SHA1

1d71d5e366ff74f1347d53111288cb3e405f6fa8
SHA256

5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be
SHA512

0884334e00e15e35217a4370c0d48b40757def759b09f118a10a550f416ac366b91218ead1957eebec0b861ad558e6c1e51b62a408288d164e02e6b305fca366
SSDEEP

12288:SP5rniagxGSBV8NvGBFlUhg8JiuC2i1n2AOtrcQlUqPofc:In2xMNeFihgqPC2iFfqCc

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.vveo
offline_id
rE5LpDv2ftYRXAo7bC18EpzfRMTHSGjgfyIMfZt1
payload_url
http://rgyui.top/dl/build2.exe

http://acacaca.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-QsoSRIeAK6 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: 0533Jhyjd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/3028-2-0x0000000001D10000-0x0000000001E2B000-memory.dmp	family_djvu
behavioral1/memory/1708-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1708-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1708-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1708-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2712-66-0x0000000000400000-0x0000000000537000-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
2888	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ad204986-e17a-45cc-b38c-90791f7e7807\\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe\" --AutoStart"	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.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
5	api.2ip.ua
9	api.2ip.ua
4	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3028 set thread context of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 2852 set thread context of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.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	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
2712	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
2712	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 3028 wrote to memory of 1708	3028	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	30
PID 1708 wrote to memory of 2888	1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	32
PID 1708 wrote to memory of 2888	1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	32
PID 1708 wrote to memory of 2888	1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	32
PID 1708 wrote to memory of 2888	1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	32
PID 1708 wrote to memory of 2852	1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	33
PID 1708 wrote to memory of 2852	1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	33
PID 1708 wrote to memory of 2852	1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	33
PID 1708 wrote to memory of 2852	1708	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	33
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34
PID 2852 wrote to memory of 2712	2852	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	34

C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
"C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
  "C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\ad204986-e17a-45cc-b38c-90791f7e7807" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2888
- - C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
    "C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2852
  - - C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
      "C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2712

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
5c612aa0d5d170f27e8648af04ba2e23

SHA1
033ca3c11e75630157b40ef6e8d57638aa13154d

SHA256
f922a18acc06e9e33356d390329198ac8e4109f1ae05b42f5368a2aa361a37cb

SHA512
05c91241458c39edc1624bf1239dae526038efe9f982d3f5deac9ddb3db2789558ad5c6b3eae93bb9974d7c7650b7739b65aa641e32336253cd3841b39174af2

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

Filesize
170B

MD5
3d22764347d59140143c6458b0416502

SHA1
c7533e4b5ede708133875fb84550b0e9581da844

SHA256
0928dcd7f534d317120e3c7ae48d8808d5012e0e2152f28763c26ee82b1d2e3f

SHA512
799821dc436c7348c033ca46137bae1606bdd81402727fc30700691aeff51442b7b1432825b43f600b69c1940833610942a3ae425deb201122a4b760c0b857fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabA4E7.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\ad204986-e17a-45cc-b38c-90791f7e7807\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe

Filesize
816KB

MD5
f03ed8fa824e035977f441d622d6a9aa

SHA1
1d71d5e366ff74f1347d53111288cb3e405f6fa8

SHA256
5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be

SHA512
0884334e00e15e35217a4370c0d48b40757def759b09f118a10a550f416ac366b91218ead1957eebec0b861ad558e6c1e51b62a408288d164e02e6b305fca366

Download Submit
memory/1708-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1708-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1708-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1708-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1708-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2852-33-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/2852-27-0x0000000001D80000-0x0000000001E11000-memory.dmp

Filesize
580KB

Download
memory/2852-28-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/3028-1-0x0000000000530000-0x00000000005C1000-memory.dmp

Filesize
580KB

Download
memory/3028-2-0x0000000001D10000-0x0000000001E2B000-memory.dmp

Filesize
1.1MB

Download
memory/3028-7-0x0000000000530000-0x00000000005C1000-memory.dmp

Filesize
580KB

Download
memory/3028-0-0x0000000000530000-0x00000000005C1000-memory.dmp

Filesize
580KB

Download