djvu | 4de2d00f758ece9e388f390616b66ca6581376cc674a6c2448f1bd9301246e8b

Analysis

max time kernel
142s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-09-2024 18:36

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General

Target

02854599.exe
Size

782KB
MD5

7f6667ae84281e5d97ac298efbcb6707
SHA1

1a88e2c8803884c71dc0955c7cfd942fa875617a
SHA256

4de2d00f758ece9e388f390616b66ca6581376cc674a6c2448f1bd9301246e8b
SHA512

4e3ae39b9e032328c199a165eb6fc4a8568f7debd03cf3b639e455ec138538ec6cd5381bd1525e40d141ca27fa54ccf817b3d79e0e703856717efcfe0ae25198
SSDEEP

12288:MQtgyuKiArFJFeGXdIMaKjv+PdzQm9eG1L6vv+PP4VPd:MQ6ZKbFJbz0dd9eG16vA4

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://zexeq.com/raud/get.php

Attributes

extension
.vapo
offline_id
BUcuB8PRg0LNi380axIJs5BS8nCUdeo9U88L2Lt1
payload_url
http://colisumy.com/dl/build2.exe

http://zexeq.com/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-tnzomMj6HU 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: 0717JOsie

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 16 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1924-2-0x00000000020D0000-0x00000000021EB000-memory.dmp	family_djvu
behavioral1/memory/2672-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2672-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2672-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2672-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-71-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-82-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-85-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-86-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-83-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-87-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

icacls.exe

pid	Process
2716	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

02854599.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\741a293f-8a83-4261-83ad-e5299be4c633\\02854599.exe\" --AutoStart"	02854599.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.

Processes:

flow	ioc
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

02854599.exe02854599.exe

description	pid	Process	procid_target
PID 1924 set thread context of 2672	1924	02854599.exe	30
PID 2596 set thread context of 2560	2596	02854599.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

Processes:

icacls.exe02854599.exe02854599.exe02854599.exe02854599.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	02854599.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	02854599.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	02854599.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	02854599.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

02854599.exe02854599.exe

pid	Process
2672	02854599.exe
2672	02854599.exe
2560	02854599.exe
2560	02854599.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

02854599.exe02854599.exe02854599.exe

description	pid	Process	procid_target
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 1924 wrote to memory of 2672	1924	02854599.exe	30
PID 2672 wrote to memory of 2716	2672	02854599.exe	31
PID 2672 wrote to memory of 2716	2672	02854599.exe	31
PID 2672 wrote to memory of 2716	2672	02854599.exe	31
PID 2672 wrote to memory of 2716	2672	02854599.exe	31
PID 2672 wrote to memory of 2596	2672	02854599.exe	32
PID 2672 wrote to memory of 2596	2672	02854599.exe	32
PID 2672 wrote to memory of 2596	2672	02854599.exe	32
PID 2672 wrote to memory of 2596	2672	02854599.exe	32
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33
PID 2596 wrote to memory of 2560	2596	02854599.exe	33

C:\Users\Admin\AppData\Local\Temp\02854599.exe
"C:\Users\Admin\AppData\Local\Temp\02854599.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Users\Admin\AppData\Local\Temp\02854599.exe
  "C:\Users\Admin\AppData\Local\Temp\02854599.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\741a293f-8a83-4261-83ad-e5299be4c633" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2716
- - C:\Users\Admin\AppData\Local\Temp\02854599.exe
    "C:\Users\Admin\AppData\Local\Temp\02854599.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2596
  - - C:\Users\Admin\AppData\Local\Temp\02854599.exe
      "C:\Users\Admin\AppData\Local\Temp\02854599.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2560

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
7fb5fa1534dcf77f2125b2403b30a0ee

SHA1
365d96812a69ac0a4611ea4b70a3f306576cc3ea

SHA256
33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

SHA512
a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

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
4a0d0b2216109f2f0d9928a29706d563

SHA1
5da5b1f17ba2a623cb559232ea5591bbce9fef58

SHA256
64292c409d5ced78dfcf6a55d38b822d78b75dc081c1b597215da6cab06a4aa8

SHA512
8f94d7149a1ac5180d13d9f26365a50303a596f2b172d32a8218c6147baf440bf1b161c4fa4d6aa5a5f24094621cbd72e3fa1f1449440b48ca2dcce9d5ec227b

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

Filesize
342B

MD5
8f05a69e37981832834e52f81624d55b

SHA1
d4c9cd7e1ae069c64cc8071719797fa906bc4d91

SHA256
fa67b6042379edf2b97d69b9865855cb05c7ef688d3ff15db7b373b627813663

SHA512
147134f269862f568ff21655edb1d06ae044d729c508ce3310f9b588da1895e0c30246e39fa3208ff43a2c1414e2e453677c629aca19d2d357c4de02c50e381b

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

Filesize
170B

MD5
f8522b756add7881c80fcfa5e224174c

SHA1
0d97fb48ad232256a0800577660c5f0c48b97599

SHA256
8718cdef1d05f1c82a130f5c4498ab3d8613155bf995a89491cda6aa24ac3fc8

SHA512
79bc92df3e61d2b83f63304cc38a61cb5dd18e865cb20d077fe3d0d426d579dc4823bd7454b5e13888dfe12dad07f6fa48dcfc9c87b2923a179d0a520436f1f2

Download Submit
C:\Users\Admin\AppData\Local\0664b9a4-888d-4e3b-815e-a32f85f9b8d1\build3.exe

Filesize
437B

MD5
6910426a598bc0b07dd6ca7c2faf5c22

SHA1
4304d65a08652b167453997e1464cc6ef034be23

SHA256
ebfef207462c29030b8a06068c8cbf1cfeae1304813b9cdbfa2d705b314bf692

SHA512
5e96757fa5daa336968aa07d5fe5525040a081a547dd6bad55bed4539ad76b3f96aabd38f461efdafa4a427963b2a3187cc40dfa60c74e6c6ddf738176381952

Download Submit
C:\Users\Admin\AppData\Local\741a293f-8a83-4261-83ad-e5299be4c633\02854599.exe

Filesize
782KB

MD5
7f6667ae84281e5d97ac298efbcb6707

SHA1
1a88e2c8803884c71dc0955c7cfd942fa875617a

SHA256
4de2d00f758ece9e388f390616b66ca6581376cc674a6c2448f1bd9301246e8b

SHA512
4e3ae39b9e032328c199a165eb6fc4a8568f7debd03cf3b639e455ec138538ec6cd5381bd1525e40d141ca27fa54ccf817b3d79e0e703856717efcfe0ae25198

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab5D1E.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\bowsakkdestx.txt

Filesize
449B

MD5
caa078f0348cda98328127c142e3bfed

SHA1
e38274d642c806a3affcca8f7e37b61f591c47e6

SHA256
91faeb982f34313750a83d74c5464abe4e01357d1a7ea4253973509bc0e9d219

SHA512
2e6a5c482b5226079c6b4bd9a706537c372a3b43962f64be6bdd281e3217f963316ef0eba38164890bdf14af6558eb26605320487f0a0c841be9bb813c2ee5d6

Download Submit
memory/1924-0-0x0000000000750000-0x00000000007E1000-memory.dmp

Filesize
580KB

Download
memory/1924-1-0x0000000000750000-0x00000000007E1000-memory.dmp

Filesize
580KB

Download
memory/1924-2-0x00000000020D0000-0x00000000021EB000-memory.dmp

Filesize
1.1MB

Download
memory/2560-86-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-71-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-82-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-85-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-83-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-87-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-70-0x0000000000400000-0x0000000000741000-memory.dmp

Filesize
3.3MB

Download
memory/2596-36-0x0000000000400000-0x0000000000741000-memory.dmp

Filesize
3.3MB

Download
memory/2596-32-0x0000000000400000-0x0000000000741000-memory.dmp

Filesize
3.3MB

Download
memory/2596-31-0x00000000009B0000-0x0000000000A41000-memory.dmp

Filesize
580KB

Download
memory/2672-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2672-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2672-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2672-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2672-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download