djvu | 63feb06b82ab8b1e98679b303f91a6231e551fbbf01cc4bc48bfba5980f30d33

Analysis

max time kernel
143s
max time network
130s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 03:35

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General

Target

3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
Size

814KB
MD5

293d130d2a76caf1890cd4e14b235bfb
SHA1

68f3bc6281107181de6f7f0e22ceebe1d478d038
SHA256

3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab
SHA512

4d8d15f5a939f143bdb88fdc204fd8a51b72dd045a5731b4b105f2cab0fa4f13de0a08df1115948857f42670d82d31cae6cb411987033af5af87b60e2722af14
SSDEEP

24576:8uJI75bMVNiwFQ/fG1mW4CwZWzVlIlwCF:8uJNNioxACwAVlSz

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/3068-2-0x0000000001F30000-0x000000000204B000-memory.dmp	family_djvu
behavioral1/memory/2668-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2668-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2668-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2668-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2568-69-0x0000000000400000-0x0000000000537000-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
2712	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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\34752258-e47e-41f3-88dd-4ea343da71d6\\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe\" --AutoStart"	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.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
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 1488 set thread context of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33

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	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
2568	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
2568	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 3068 wrote to memory of 2668	3068	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	30
PID 2668 wrote to memory of 2712	2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	31
PID 2668 wrote to memory of 2712	2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	31
PID 2668 wrote to memory of 2712	2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	31
PID 2668 wrote to memory of 2712	2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	31
PID 2668 wrote to memory of 1488	2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	32
PID 2668 wrote to memory of 1488	2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	32
PID 2668 wrote to memory of 1488	2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	32
PID 2668 wrote to memory of 1488	2668	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	32
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33
PID 1488 wrote to memory of 2568	1488	3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe	33

C:\Users\Admin\AppData\Local\Temp\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
"C:\Users\Admin\AppData\Local\Temp\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Users\Admin\AppData\Local\Temp\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
  "C:\Users\Admin\AppData\Local\Temp\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\34752258-e47e-41f3-88dd-4ea343da71d6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2712
- - C:\Users\Admin\AppData\Local\Temp\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
    "C:\Users\Admin\AppData\Local\Temp\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1488
  - - C:\Users\Admin\AppData\Local\Temp\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe
      "C:\Users\Admin\AppData\Local\Temp\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2568

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
1803dbb2b108cdf276dba53bc78638bd

SHA1
02e869ea871fe69f0f16fbe1afb9b6b38cf0f05d

SHA256
832b1e60cf7313b72c2b2396dfabf0adc91cea4ab5204fdd02b93ac0fe975fdd

SHA512
ad61aaffa66f229358d38b2003bbddf12841a9f90141ce08c5125a5a0dac96d57bf959ac24c7dbb96badee3dcdc2e611569de52ea53a8196518aa78fa9c20eff

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

Filesize
342B

MD5
92c8a751188c75516c776a2d42f75339

SHA1
075a71a46a7b6bb29641884de88cd6693e64d9f1

SHA256
c06515695c8c28d24fe9a1f230cd16f1d1a7e4c39316e6f78379f75cb65d7610

SHA512
7d1b88765a7376f1948deaff9a8af9eec8c89a90ef72c7616014df74fd7a18b986f158718777221be8fdb26fe8ca9f09a0d6fc883fc789b6f895166fe1235c00

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

Filesize
170B

MD5
3248811fbe04c336007e571b935cdeb8

SHA1
cf125072412bab4502897d80613a1d3f10a14d94

SHA256
05d5bc435794cc6965a2e5772a6f91e3f5905c9024306610c7d0330f0f94ddcd

SHA512
ffdac8685a68c0e84ce682aa36cb655cba493b56ac1636172cd748c514af1a4518def64eee16d03e31c88e04aa778c9781f23fc685ca4fe45ae2cd17a9d31ad7

Download Submit
C:\Users\Admin\AppData\Local\34752258-e47e-41f3-88dd-4ea343da71d6\3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab.exe

Filesize
814KB

MD5
293d130d2a76caf1890cd4e14b235bfb

SHA1
68f3bc6281107181de6f7f0e22ceebe1d478d038

SHA256
3eac85459e4de2a6ab0b4703278e728920f4bc1bf2d0ed5454e8f5f02a0a78ab

SHA512
4d8d15f5a939f143bdb88fdc204fd8a51b72dd045a5731b4b105f2cab0fa4f13de0a08df1115948857f42670d82d31cae6cb411987033af5af87b60e2722af14

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab144C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1488-29-0x0000000000230000-0x00000000002C1000-memory.dmp

Filesize
580KB

Download
memory/1488-35-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1488-30-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/2568-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2568-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2568-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2568-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2568-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2568-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2568-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2568-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2568-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2568-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2668-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2668-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2668-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2668-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2668-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3068-0-0x0000000000310000-0x00000000003A1000-memory.dmp

Filesize
580KB

Download
memory/3068-1-0x0000000000310000-0x00000000003A1000-memory.dmp

Filesize
580KB

Download
memory/3068-2-0x0000000001F30000-0x000000000204B000-memory.dmp

Filesize
1.1MB

Download
memory/3068-6-0x0000000000310000-0x00000000003A1000-memory.dmp

Filesize
580KB

Download