djvu | 19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696

Resubmissions

19-09-2024 12:28

240919-pnl9bsybjf 10

16-07-2024 13:31

240716-qsvxpsvekm 10

16-07-2024 13:09

240716-qdy1tatgmp 10

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
16-07-2024 13:31

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General

Target

19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
Size

691KB
MD5

d26082c8ae68b4c546843f32325c01dd
SHA1

32dbba008b93a3c2f8fc8fadccf7d5c7ab096f87
SHA256

19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696
SHA512

2a1656d8c2cf6991780b0665a6815b58eaa31e1584fa6154207b540c5294e0c4848516d7f4717b6cf2fb70edf3ff9ca5f256035ab24eab88417396db80aadaec
SSDEEP

12288:SYJsO0qghZwfnpR+yUAg0BOCtK8V/zKbvDDVKu05dHY30hldLZGUh1U:PAZwfnpXUgOOK+mbvNKd8oldLZn

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 14 IoCs

resource	yara_rule
behavioral1/memory/2412-2-0x0000000000540000-0x000000000065B000-memory.dmp	family_djvu
behavioral1/memory/2188-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-56-0x0000000000400000-0x0000000000537000-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
2864	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-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\50cabf76-b8d0-4002-ab56-cc570b2362df\\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe\" --AutoStart"	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.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
4	api.2ip.ua
5	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2412 set thread context of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2756 set thread context of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

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

System Information Discovery
T1082
Office loads VBA resources, possible macro or embedded object present

Suspicious behavior: AddClipboardFormatListener 3 IoCs

pid	Process
304	WINWORD.EXE
1100	WINWORD.EXE
844	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
2808	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
2808	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
304	WINWORD.EXE
304	WINWORD.EXE
304	WINWORD.EXE
1100	WINWORD.EXE
1100	WINWORD.EXE
844	WINWORD.EXE
844	WINWORD.EXE
844	WINWORD.EXE

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2412 wrote to memory of 2188	2412	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	30
PID 2188 wrote to memory of 2864	2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	32
PID 2188 wrote to memory of 2864	2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	32
PID 2188 wrote to memory of 2864	2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	32
PID 2188 wrote to memory of 2864	2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	32
PID 2188 wrote to memory of 2756	2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	33
PID 2188 wrote to memory of 2756	2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	33
PID 2188 wrote to memory of 2756	2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	33
PID 2188 wrote to memory of 2756	2188	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	33
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34
PID 2756 wrote to memory of 2808	2756	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	34

C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
"C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
  "C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2188
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\50cabf76-b8d0-4002-ab56-cc570b2362df" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2864
- - C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
    "C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2756
  - - C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
      "C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2808

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\Desktop\SyncUnregister.odt"
1⤵
- Drops file in Windows directory
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:304

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\Desktop\LockClear.docx"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1100

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\Desktop\SyncUnregister.odt"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:844

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
e004e241112df67b7e05dc8fc4b4b378

SHA1
b1235ebcc0c62365e0e6aa7b047115394bdb4b61

SHA256
2c414d4b0534c8a214748e1858fe54c5c793df4b1e9d1fda7882e71afc136723

SHA512
54d1e8d866300571a82212943a756d792dcb097949579e30365b506240d5c333bc22ed1d6559673ea909fe90066165c3485fb5029a8c6164798aaab970b5f510

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

Filesize
170B

MD5
75a01369489dafe1c9a6577b13ab9d56

SHA1
8ee8b97692811494b34ff40efd75b7af8441a7b9

SHA256
6f68c05854b0679b022b1be05850006bb37900f13d7eafe9fccdde99108324d4

SHA512
b0d8ed4e597807637ff6f0f3f151e43b005c7b8d5d0005b3a65fe7aa42a74b9343dd904aee74f1c62d522ea734be3e0b43c7c1b6dae6af3250f7060a1ec94837

Download Submit
C:\Users\Admin\AppData\Local\50cabf76-b8d0-4002-ab56-cc570b2362df\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

Filesize
691KB

MD5
d26082c8ae68b4c546843f32325c01dd

SHA1
32dbba008b93a3c2f8fc8fadccf7d5c7ab096f87

SHA256
19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696

SHA512
2a1656d8c2cf6991780b0665a6815b58eaa31e1584fa6154207b540c5294e0c4848516d7f4717b6cf2fb70edf3ff9ca5f256035ab24eab88417396db80aadaec

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabC0A1.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

Filesize
257B

MD5
96a19de6f9edb9a99ea3c3d346dc6e24

SHA1
092955e4e9d1ff228e973fd9a09a965794996216

SHA256
92199f5732a7d6cc959345023e20bc269ae684adc830d93f50ce96ab2a4c123b

SHA512
8bb8951b97ba13ac3e1da04ebed4e78ce9c11f2d045f80ef8732e255dc9f08e7f42f5d043a5098d70fc472b68e7bf49c22f7669ff1b93976d2e79128b4bf98c0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

Filesize
19KB

MD5
1e58b4eb2632141e0118b8b6676e1fd7

SHA1
1adf58ee7ef4d58869270f5a4fba83277ff60169

SHA256
687473374a50ce260de1ac4749923dfe4daf495056f6485910535ea2f68dafb6

SHA512
9c6aa143ddaeddf375aa0abc5e10bc75d2f844560e7cad9922172c0c79ff4ed5b035380eee5257b51e6a58d9bdce988f1513a2492266014fc27319bdd950626b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/304-78-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/304-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1100-79-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2188-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2188-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2412-2-0x0000000000540000-0x000000000065B000-memory.dmp

Filesize
1.1MB

Download
memory/2412-0-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2412-1-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2756-33-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2756-27-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2756-26-0x00000000005B0000-0x0000000000641000-memory.dmp

Filesize
580KB

Download
memory/2808-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download