djvu | 9eec15032a9c0ac9900636ece584555e1035f7da569cfe620cb26d2e5c76b114

Analysis

max time kernel
148s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 17:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
Size

793KB
MD5

9fcdf0cfe8478a37bcf45a7ccd97da47
SHA1

d164d00b0692b68574f12acde245f5e501b69628
SHA256

bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a
SHA512

9ed1ca3375634baa8f91700d4d6388423d61ad4cc274caca8a6a83d01051a54a1dae501534fb40eebca48b57511095eb5b95c5dfce90ea5ccfc248b6c85837b3
SSDEEP

12288:VxyQdjSLkWghFdms3TVGJbkwPnxZJKQTZyeFxIlKPHy9XuKaw6qypd+sSuRMH:VIwSWFdmsjOPn8yZ8mHeu4u8sSuc

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://fuyt.org/test1/get.php

Attributes

extension
.udla
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.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-fnn5kv33Vv 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: 0435JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2936-2-0x0000000000510000-0x000000000062B000-memory.dmp	family_djvu
behavioral1/memory/2148-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2148-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2148-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2148-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-58-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-65-0x0000000000400000-0x0000000000537000-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
2856	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\\de7a3b10-e3f7-4762-8399-b604ad6e4254\\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe\" --AutoStart"	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.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
5	api.2ip.ua
9	api.2ip.ua
4	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2936 set thread context of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2720 set thread context of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35

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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
2684	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
2684	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2936 wrote to memory of 2148	2936	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	30
PID 2148 wrote to memory of 2856	2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	33
PID 2148 wrote to memory of 2856	2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	33
PID 2148 wrote to memory of 2856	2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	33
PID 2148 wrote to memory of 2856	2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	33
PID 2148 wrote to memory of 2720	2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	34
PID 2148 wrote to memory of 2720	2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	34
PID 2148 wrote to memory of 2720	2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	34
PID 2148 wrote to memory of 2720	2148	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	34
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35
PID 2720 wrote to memory of 2684	2720	bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe	35

C:\Users\Admin\AppData\Local\Temp\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
"C:\Users\Admin\AppData\Local\Temp\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Users\Admin\AppData\Local\Temp\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
  "C:\Users\Admin\AppData\Local\Temp\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2148
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\de7a3b10-e3f7-4762-8399-b604ad6e4254" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2856
- - C:\Users\Admin\AppData\Local\Temp\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
    "C:\Users\Admin\AppData\Local\Temp\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2720
  - - C:\Users\Admin\AppData\Local\Temp\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe
      "C:\Users\Admin\AppData\Local\Temp\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2684

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

Loading Replay Monitor...

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
ca06c8e63b599e1a79ed695e46157f15

SHA1
6ddc23d28ee63242d74b717e558c7aec58d317aa

SHA256
0afe9bf39c424f3f69baf8b51d459b72bdc4ca87e4c6a40b579d6844eafe4ad1

SHA512
a75dd6f8b247b09bc0c92b80fc3b775eba857ae9de566a4d7a214dcbfc598a9252c8811a008bfd813aae9ba79a7c6e23f016408b810873ba5a0dea6e0b17db4c

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

Filesize
170B

MD5
598f1607099ec662a132d4ca2b6f6959

SHA1
f5bb7c4b7ab6ec517eb9ac5dc178e4977ed75f16

SHA256
5a785fb98775bcf58762420dc2b65fb827e02c9ef24001bd8b3b6288af86b63a

SHA512
e70eaad06e1ec64e3e2fe0a1a7ca3102b0c73dcfecee38ddcf91682a959a4278c93112f245237a179b282250e94fd51d0b800a9cb231cb96e89872ee93b004d5

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabDC4B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\de7a3b10-e3f7-4762-8399-b604ad6e4254\bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a.exe

Filesize
793KB

MD5
9fcdf0cfe8478a37bcf45a7ccd97da47

SHA1
d164d00b0692b68574f12acde245f5e501b69628

SHA256
bd1789026d6010f1849075e14a07f168349ac7e9bbe154358a0e96f0435e8d9a

SHA512
9ed1ca3375634baa8f91700d4d6388423d61ad4cc274caca8a6a83d01051a54a1dae501534fb40eebca48b57511095eb5b95c5dfce90ea5ccfc248b6c85837b3

Download Submit
memory/2148-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2148-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-58-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-33-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/2720-28-0x0000000000510000-0x00000000005A2000-memory.dmp

Filesize
584KB

Download
memory/2720-29-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/2936-1-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2936-2-0x0000000000510000-0x000000000062B000-memory.dmp

Filesize
1.1MB

Download
memory/2936-6-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2936-0-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download