djvu | 11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466

Analysis

max time kernel
148s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
20-07-2024 18:23

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General

Target

11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe
Size

790KB
MD5

ccdcef2861643fbe15ccb7b6b838ccb9
SHA1

8593c515601dfdadab1dde36bf537c5b4f86f518
SHA256

11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466
SHA512

20047c6621c78ab078aff2a4814a02d48875f6349182356070fff6bd3ad9d2ccdd8ad711e85e47a5e4e54cbb6dc8b104713ff3e8bb4fe15f6d689061a01fa2c7
SSDEEP

12288:jWLhgDajW80Fp1agDPbwCokXm1XSSdN20bkJqMiwXftA:CS2Kj1jDckX+jQ0boqyXVA

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.qual
offline_id
KLbRmn6on3AXGFgDLGtd0IkHmV7uHw9VxlcxO5t1
payload_url
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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool. Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0876qual

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 13 IoCs

resource	yara_rule
behavioral1/memory/2784-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2312-5-0x0000000003D10000-0x0000000003E2B000-memory.dmp	family_djvu
behavioral1/memory/2784-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-55-0x0000000000400000-0x0000000000537000-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

pid	Process
2744	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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\487cd8e7-64b6-4c13-9616-a631ede62005\\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe\" --AutoStart"	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.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 2312 set thread context of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2576 set thread context of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe
2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe
3048	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe
3048	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2312 wrote to memory of 2784	2312	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	30
PID 2784 wrote to memory of 2744	2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	31
PID 2784 wrote to memory of 2744	2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	31
PID 2784 wrote to memory of 2744	2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	31
PID 2784 wrote to memory of 2744	2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	31
PID 2784 wrote to memory of 2576	2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	32
PID 2784 wrote to memory of 2576	2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	32
PID 2784 wrote to memory of 2576	2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	32
PID 2784 wrote to memory of 2576	2784	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	32
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33
PID 2576 wrote to memory of 3048	2576	11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe	33

C:\Users\Admin\AppData\Local\Temp\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe
"C:\Users\Admin\AppData\Local\Temp\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Users\Admin\AppData\Local\Temp\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe
  "C:\Users\Admin\AppData\Local\Temp\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2784
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\487cd8e7-64b6-4c13-9616-a631ede62005" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2744
- - C:\Users\Admin\AppData\Local\Temp\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe
    "C:\Users\Admin\AppData\Local\Temp\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2576
  - - C:\Users\Admin\AppData\Local\Temp\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe
      "C:\Users\Admin\AppData\Local\Temp\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:3048

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\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
1bfe0a81db078ea084ff82fe545176fe

SHA1
50b116f578bd272922fa8eae94f7b02fd3b88384

SHA256
5ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f

SHA512
37c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
174B

MD5
c774b006b24f2bddc05ca4c0624a30eb

SHA1
f31254f9703578aef1263596b51850088207a64e

SHA256
6fc5b8ffc51eccbc52703f3cd6c0ac7411ee792ba06ef4229586bcb78f466cd0

SHA512
09e12ce1248bf079a3ea716dd3d9d8fba503eb102498c1e1774350cb2c6c5d5027f6f1cdbefc600baf318857326de22b947ba23ffe284a3a415c449f8eb7afae

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

Filesize
342B

MD5
b86dd7b90c79285b5d327bda1ec53f37

SHA1
24beb4fdb01e9dccc864c1011e54b6b2dee4b61b

SHA256
911872ed08ce82236d9f811775222d98581763fccf7631eb33f5961874ec4e01

SHA512
4fd129972e5ed36789483e1b99c766a557517ab21efa44e24337562d5291f34d4a7097aeea27faee9ead7fcc696c85d4a6a193aeed4e931fa176c4ede0376d25

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

Filesize
170B

MD5
1ce307fa2dc66d940812faf2d3f016d3

SHA1
7a98e60ee3587831134e0f21d51f782b4550aebd

SHA256
22f412eab232e60f34e8ba5882cbee2b6d2b0df9736512348a480aa9b7a99cc5

SHA512
2e98967874dedf79135e1af2bc8d0019660bd5cee903858061b4374152116aad1f537819e79b72ced975beb6a4075bc6bc11938b7117ea98ab008658336e5ecc

Download Submit
C:\Users\Admin\AppData\Local\487cd8e7-64b6-4c13-9616-a631ede62005\11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466.exe

Filesize
790KB

MD5
ccdcef2861643fbe15ccb7b6b838ccb9

SHA1
8593c515601dfdadab1dde36bf537c5b4f86f518

SHA256
11ad27e7719a36d5bfab6677dcfb4061ea25ee0e6d2b1cc1702501ca06cc9466

SHA512
20047c6621c78ab078aff2a4814a02d48875f6349182356070fff6bd3ad9d2ccdd8ad711e85e47a5e4e54cbb6dc8b104713ff3e8bb4fe15f6d689061a01fa2c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab9A4C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2312-4-0x0000000000230000-0x00000000002C1000-memory.dmp

Filesize
580KB

Download
memory/2312-5-0x0000000003D10000-0x0000000003E2B000-memory.dmp

Filesize
1.1MB

Download
memory/2312-0-0x0000000000230000-0x00000000002C1000-memory.dmp

Filesize
580KB

Download
memory/2576-29-0x0000000000250000-0x00000000002E1000-memory.dmp

Filesize
580KB

Download
memory/2784-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download