djvu | 72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d

Analysis

max time kernel
145s
max time network
134s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 22:05

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General

Target

JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
Size

793KB
MD5

f897719dd88e95baf1b8652d7df6c41a
SHA1

06001655b4915a952f4edf1dd7a89958feffa9d9
SHA256

72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d
SHA512

46b74e652252b60fcf0c965b3f531a3c34bfabaedfaf26dae391a70965aeb09fc26ac4f471efeb72d891e859df376dff2415f6200cc1ca6a41830ebdb37c5371
SSDEEP

24576:pbj25fkVcS4i9+Xjn9savYjke59m2Aep:pbjfIRr9ejke59m2A

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/3044-2-0x0000000001D30000-0x0000000001E4B000-memory.dmp	family_djvu
behavioral1/memory/2636-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2636-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2636-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2636-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-70-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-73-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-72-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-74-0x0000000000400000-0x0000000000537000-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
2264	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\724c958f-cafa-4146-8173-14242f777dca\\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe\" --AutoStart"	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.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
9	api.2ip.ua
3	api.2ip.ua
4	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 2644 set thread context of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
2608	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
2608	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 3044 wrote to memory of 2636	3044	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	30
PID 2636 wrote to memory of 2264	2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	31
PID 2636 wrote to memory of 2264	2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	31
PID 2636 wrote to memory of 2264	2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	31
PID 2636 wrote to memory of 2264	2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	31
PID 2636 wrote to memory of 2644	2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	32
PID 2636 wrote to memory of 2644	2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	32
PID 2636 wrote to memory of 2644	2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	32
PID 2636 wrote to memory of 2644	2636	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	32
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33
PID 2644 wrote to memory of 2608	2644	JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\724c958f-cafa-4146-8173-14242f777dca" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2264
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2644
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2608

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
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
02eb1d39c46d21f6d51705ba0d9ea9cd

SHA1
e26cbb73e2233993cc8e4390c3cf5950a3088f8b

SHA256
cfafd4d17aa2377867f63f5b40a1dac35feda5e816980f7ea1058fb19eff1627

SHA512
c24a89eba77a1611d0d9a373644dca921afc6fe6d93c26381a11e2e07dbcea33f8fb989d9c94fd94863a5b3f5c9800568d292b1c0a8df555b67095c0f35b45bb

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

Filesize
342B

MD5
66dc1e689405fa0b38a1739930fc020a

SHA1
44c855a149e4d39c76792aea4a0e9813ca3d3208

SHA256
d9c570c8d174be8c6608e31d76bbe9d449d197b9b74d73988f8e1b2135d32955

SHA512
9d2bf161ca5c1a1cd4806eaeda00967bf40c191c225fe02cacc33ebb385d9f4252f6d91ac41faee86d0c69e41369448db2fdfecc17650e53eb993876cf48a5ee

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

Filesize
170B

MD5
4ff364539abcda2e9fda5f550b7d1039

SHA1
967c1ddc84b2c450312ca64563326dd8eebb1192

SHA256
ca252221785836b45a74dbfb52b1ba8806acbf03e548dfced32ebe4c978608a4

SHA512
ed0954774463a80d8be511017ef468be78a253e55ca0d3ee63ef4c8248cfa82d6ee48a7756e0ee0ebb0ca3b84642c825525d0c2e32bdc495f227fa13035f69e6

Download Submit
C:\Users\Admin\AppData\Local\724c958f-cafa-4146-8173-14242f777dca\JaffaCakes118_72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d.exe

Filesize
793KB

MD5
f897719dd88e95baf1b8652d7df6c41a

SHA1
06001655b4915a952f4edf1dd7a89958feffa9d9

SHA256
72d639d86f67f7637ebe9041bda4a9cfacdfd600ec8da2998f79d04a95af789d

SHA512
46b74e652252b60fcf0c965b3f531a3c34bfabaedfaf26dae391a70965aeb09fc26ac4f471efeb72d891e859df376dff2415f6200cc1ca6a41830ebdb37c5371

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab4B62.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2608-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-74-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-72-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-73-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2636-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2636-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2636-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2636-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-37-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/2644-33-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/2644-32-0x00000000002B0000-0x0000000000342000-memory.dmp

Filesize
584KB

Download
memory/3044-7-0x0000000000280000-0x0000000000312000-memory.dmp

Filesize
584KB

Download
memory/3044-2-0x0000000001D30000-0x0000000001E4B000-memory.dmp

Filesize
1.1MB

Download
memory/3044-1-0x0000000000280000-0x0000000000312000-memory.dmp

Filesize
584KB

Download
memory/3044-0-0x0000000000280000-0x0000000000312000-memory.dmp

Filesize
584KB

Download