djvu | dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375

Analysis

max time kernel
258s
max time network
298s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 20:50

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General

Target

dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
Size

817KB
MD5

c082d1ba8c66d2c5adee770992c8c249
SHA1

b32b610c10181cd4dad3c40e7a86c709f6127fc2
SHA256

dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375
SHA512

ceb59c18fff468974b2c4f35922459d8be91d760368fbda9e1e6d9e485e53848a6745db0a9375e7be13d16f7362cf21f87e256be1d9cae31233c88726199e194
SSDEEP

12288:YBDAUXwqzvevScTOFyqOEhz3txgdEGtKGjRQR/q18co3jqCHJT:VWzWvS7FNOEJ3Mdt8GQpcuJ

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.azop
offline_id
GQ9DjFmWFDqpsyzsOnaxE1Xr4MPL1dG4vPfPDNt1
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-e5pgPH03fe 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: 0792

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 16 IoCs

resource	yara_rule
behavioral1/memory/2788-2-0x0000000003E80000-0x0000000003F9B000-memory.dmp	family_djvu
behavioral1/memory/2632-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2632-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2632-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2632-10-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2632-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2632-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-72-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-71-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1704-73-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Downloads MZ/PE file

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3012	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-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b557fc64-0b89-406c-a3a1-bc701dfbacc6\\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe\" --AutoStart"	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.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
14	api.2ip.ua
3	api.2ip.ua
4	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 1636 set thread context of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2632	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
1704	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
1704	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2788 wrote to memory of 2632	2788	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	27
PID 2632 wrote to memory of 3012	2632	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	30
PID 2632 wrote to memory of 3012	2632	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	30
PID 2632 wrote to memory of 3012	2632	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	30
PID 2632 wrote to memory of 3012	2632	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	30
PID 2632 wrote to memory of 1636	2632	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	31
PID 2632 wrote to memory of 1636	2632	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	31
PID 2632 wrote to memory of 1636	2632	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	31
PID 2632 wrote to memory of 1636	2632	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	31
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32
PID 1636 wrote to memory of 1704	1636	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	32

C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
"C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2788
- C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
  "C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2632
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\b557fc64-0b89-406c-a3a1-bc701dfbacc6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3012
- - C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
    "C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1636
  - - C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
      "C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1704
    - - C:\Users\Admin\AppData\Local\377fe1d0-9b1d-4b10-ba47-b591a543e164\build2.exe
        
        "C:\Users\Admin\AppData\Local\377fe1d0-9b1d-4b10-ba47-b591a543e164\build2.exe"
        5⤵
        
        PID:2256

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\646C991C2A28825F3CC56E0A1D1E3FA9

Filesize
1KB

MD5
923f6e4d45a5884f0abbfe60aaf2a972

SHA1
b77ca54adace5c1e34615832c53f9f7f3ee02887

SHA256
45c2b4583dd60ac1d507af81ee09b636d4605f246c7596526e26d1a8d4af4df1

SHA512
72f0bfdb3dd6a0b9f8dd9a14e7f6f410f16ff7e516f110266bd8c87d7a81a27e6174a3ccabd80c828e50867e129d895ff93de1c45b1cdb70e2024139c14efa98

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\646C991C2A28825F3CC56E0A1D1E3FA9

Filesize
184B

MD5
1b5ade94a90a8394d42a4fa50ca6da54

SHA1
8c33f7d71d91df0963f7082cd709a8b07435cff5

SHA256
2016baa8359b607231ecba9011e4df785ce133052826927a1e84d69cc789c8bb

SHA512
09d0048f4e634d5a8556eb540edc4585a2219c757edca9597015d13daa7547300af33eb03a5f27a89c0cd0db9b4a451701fe0d73631a92482119fa37b0b460c5

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

Filesize
344B

MD5
5741f140f018a70c91fc3858754e84a0

SHA1
0eb444c08beea58229f690d42e5b100644d12606

SHA256
0229c2e266671b7a16b05a3d9743539919c39b3a616fe3a764c75c713e95c9ee

SHA512
cc1337621f2e964236e69122bef7b9c97f0507cce505999b15525d00d6762fec375536e68642945e84c73223b98f9a1d4c7c1771824da9688fc46c6e68fd30ca

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
392B

MD5
3f7ad90f34950908782aad7fac802d89

SHA1
2ab00870da140a2a999d1eb2b81a40fda9351ef9

SHA256
76d59f7c8fa04fd8aa3229b598f92bb56b7ca857fa0763994214b783755e2e6a

SHA512
e4664f531fe3f3e2d0be8dd61dd4ef15cc49bbf2a531f7628b430ce5fe744da68e114bb471fd708fa568573fa5436a2bb1c816b72e0f8121febc6847ee903f98

Download Submit
C:\Users\Admin\AppData\Local\377fe1d0-9b1d-4b10-ba47-b591a543e164\build2.exe

Filesize
404KB

MD5
22f2fd94f57b71f36a31ea18be7d4b34

SHA1
a8dc0a1af7978fea291f5306f1937a90ac9b6b5b

SHA256
bf1d4645972f8a10ef66d4343d0b3dc5b66ea2050a061e8194e6858a88220454

SHA512
5b1811dbded599cf9580efe2093594b31204404ec3f69f8c061fac1f2eee261f9837adf63a4c55a206d39f9071ade5b663615ba05d9a023c69a7f2b0f6bcf173

Download Submit
C:\Users\Admin\AppData\Local\377fe1d0-9b1d-4b10-ba47-b591a543e164\build2.exe

Filesize
404KB

MD5
22f2fd94f57b71f36a31ea18be7d4b34

SHA1
a8dc0a1af7978fea291f5306f1937a90ac9b6b5b

SHA256
bf1d4645972f8a10ef66d4343d0b3dc5b66ea2050a061e8194e6858a88220454

SHA512
5b1811dbded599cf9580efe2093594b31204404ec3f69f8c061fac1f2eee261f9837adf63a4c55a206d39f9071ade5b663615ba05d9a023c69a7f2b0f6bcf173

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabE428.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\b557fc64-0b89-406c-a3a1-bc701dfbacc6\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe

Filesize
817KB

MD5
c082d1ba8c66d2c5adee770992c8c249

SHA1
b32b610c10181cd4dad3c40e7a86c709f6127fc2

SHA256
dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375

SHA512
ceb59c18fff468974b2c4f35922459d8be91d760368fbda9e1e6d9e485e53848a6745db0a9375e7be13d16f7362cf21f87e256be1d9cae31233c88726199e194

Download Submit
\Users\Admin\AppData\Local\377fe1d0-9b1d-4b10-ba47-b591a543e164\build2.exe

Filesize
404KB

MD5
22f2fd94f57b71f36a31ea18be7d4b34

SHA1
a8dc0a1af7978fea291f5306f1937a90ac9b6b5b

SHA256
bf1d4645972f8a10ef66d4343d0b3dc5b66ea2050a061e8194e6858a88220454

SHA512
5b1811dbded599cf9580efe2093594b31204404ec3f69f8c061fac1f2eee261f9837adf63a4c55a206d39f9071ade5b663615ba05d9a023c69a7f2b0f6bcf173

Download Submit
\Users\Admin\AppData\Local\377fe1d0-9b1d-4b10-ba47-b591a543e164\build2.exe

Filesize
404KB

MD5
22f2fd94f57b71f36a31ea18be7d4b34

SHA1
a8dc0a1af7978fea291f5306f1937a90ac9b6b5b

SHA256
bf1d4645972f8a10ef66d4343d0b3dc5b66ea2050a061e8194e6858a88220454

SHA512
5b1811dbded599cf9580efe2093594b31204404ec3f69f8c061fac1f2eee261f9837adf63a4c55a206d39f9071ade5b663615ba05d9a023c69a7f2b0f6bcf173

Download Submit
memory/1636-39-0x0000000002620000-0x00000000026B2000-memory.dmp

Filesize
584KB

Download
memory/1636-37-0x0000000002620000-0x00000000026B2000-memory.dmp

Filesize
584KB

Download
memory/1704-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-72-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-73-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-71-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1704-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2632-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2632-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2632-10-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2632-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2632-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2632-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2632-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

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memory/2788-7-0x0000000003DE0000-0x0000000003E72000-memory.dmp

Filesize
584KB

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memory/2788-0-0x0000000003DE0000-0x0000000003E72000-memory.dmp

Filesize
584KB

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memory/2788-2-0x0000000003E80000-0x0000000003F9B000-memory.dmp

Filesize
1.1MB

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memory/2788-1-0x0000000003DE0000-0x0000000003E72000-memory.dmp

Filesize
584KB

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