djvu | 0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785

Analysis

max time kernel
143s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 14:33

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General

Target

JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
Size

783KB
MD5

77ac219ea2faa1aace0d07618bf6d186
SHA1

41a25a225f39c0b07a29f44a02fdb81b7844c4fb
SHA256

0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785
SHA512

f6bd16453ba4f99dd638a0d0875c366f613ffb746997be72d26e37aec9d7a78e6a583f4ec07b314c5ec44adc64b767891dee2b71ee4cc0d8f6b1881d22ddf82f
SSDEEP

24576:PNAoY+U/xypdg1DG6B4XBcPRiHMdzdh+L0:n4gg1DGa+URiHNL

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.ghas
offline_id
miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1
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-0SLhZxAjRX 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: 0445JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2684-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2668-2-0x0000000001D50000-0x0000000001E6B000-memory.dmp	family_djvu
behavioral1/memory/2684-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2684-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-68-0x0000000000400000-0x0000000000537000-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
2764	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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\384bbb17-c93b-41b5-8502-69fbd9882bd9\\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe\" --AutoStart"	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.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 2668 set thread context of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2576 set thread context of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.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_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
2648	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
2648	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2668 wrote to memory of 2684	2668	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	30
PID 2684 wrote to memory of 2764	2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	31
PID 2684 wrote to memory of 2764	2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	31
PID 2684 wrote to memory of 2764	2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	31
PID 2684 wrote to memory of 2764	2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	31
PID 2684 wrote to memory of 2576	2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	32
PID 2684 wrote to memory of 2576	2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	32
PID 2684 wrote to memory of 2576	2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	32
PID 2684 wrote to memory of 2576	2684	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	32
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33
PID 2576 wrote to memory of 2648	2576	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\384bbb17-c93b-41b5-8502-69fbd9882bd9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2764
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2576
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2648

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
defd703c23fd5426ae9fe632197f0ecb

SHA1
19097abfb992dec2a57487f94338c18a059af7f7

SHA256
262c9de0ab816849eaf23f7478dd921273fc9134ad395c06b2671d57dc576b44

SHA512
861e779e55a6f630e882cdcb6ad8775bfad9b898af486bcc2e3795b10af82536b65546a5e8ba8ea82bfbf5056357144d45ffe4a9f074c5097ffb13173f6362ba

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

Filesize
342B

MD5
75593c225ad9e04b18da862b207c233c

SHA1
9b66286080c00078454829f01efbdde75ce0361f

SHA256
c2aa01fd5ddf7b3dd83521d78531d399247f85267e0986fa6ca12be25b2ced61

SHA512
2617e019d2a59cba2b9d0297744d684e6351add79b36f06c4bfbc8dbcda9da8778830d08a67711a2553139d1ebb7252a7a1c69a7aadd099517bdc4455992b1ba

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

Filesize
170B

MD5
264b5842f7a095e2240efa94ed01504e

SHA1
1bb37e92703b3a0a8dcef66e8456fa9af5886c13

SHA256
761bae69cdc0958a8124eb86e408af702c5462c32168b11f0a1eac7d9ce12eac

SHA512
4122edd2d7e2e3aed6636e1c5f4441c939a690c69895272470817554fa3cbc7240255de544b0fb15917510ce01814bb924469a400458f7cc2e29cfcedc8622e9

Download Submit
C:\Users\Admin\AppData\Local\384bbb17-c93b-41b5-8502-69fbd9882bd9\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe

Filesize
783KB

MD5
77ac219ea2faa1aace0d07618bf6d186

SHA1
41a25a225f39c0b07a29f44a02fdb81b7844c4fb

SHA256
0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785

SHA512
f6bd16453ba4f99dd638a0d0875c366f613ffb746997be72d26e37aec9d7a78e6a583f4ec07b314c5ec44adc64b767891dee2b71ee4cc0d8f6b1881d22ddf82f

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF71B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2576-30-0x0000000000340000-0x00000000003D1000-memory.dmp

Filesize
580KB

Download
memory/2576-37-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/2576-31-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/2648-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2668-2-0x0000000001D50000-0x0000000001E6B000-memory.dmp

Filesize
1.1MB

Download
memory/2668-0-0x0000000000590000-0x0000000000621000-memory.dmp

Filesize
580KB

Download
memory/2668-1-0x0000000000590000-0x0000000000621000-memory.dmp

Filesize
580KB

Download
memory/2668-6-0x0000000000590000-0x0000000000621000-memory.dmp

Filesize
580KB

Download
memory/2684-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download