djvu | da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34

Analysis

max time kernel
147s
max time network
132s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-12-2024 23:09

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General

Target

JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
Size

829KB
MD5

734ae031b3a4a246f4211f4b378be099
SHA1

b98d03592af85cd345f8fd9db3bf1d575e6ce80a
SHA256

da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34
SHA512

11e80d519e59ca626e504eb44f7f801cc1c355f6282a1037e988b8dd089ed3ec2ca59df7cf3a3d04840f0ec3d431d510361e1ef2042573b44abec4488ff94c07
SSDEEP

12288:ThydzySr8NfwOM9uj0hJeA6h9f37TXVY+6PbGu0lDdqD0SUF5y3sTl9unnwQ7/X:NuJuQhJC9f37hYNb4A0X5y30lOwA

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.gtys
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: 0439JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2352-2-0x0000000001E50000-0x0000000001F6B000-memory.dmp	family_djvu
behavioral1/memory/2392-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2392-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2392-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2392-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2888-67-0x0000000000400000-0x0000000000537000-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
2780	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\\6cfe87c2-4c07-4e09-9de3-6a5b981ecdfb\\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe\" --AutoStart"	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.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 2352 set thread context of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2812 set thread context of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34

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_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
2888	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
2888	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2352 wrote to memory of 2392	2352	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	30
PID 2392 wrote to memory of 2780	2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	32
PID 2392 wrote to memory of 2780	2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	32
PID 2392 wrote to memory of 2780	2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	32
PID 2392 wrote to memory of 2780	2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	32
PID 2392 wrote to memory of 2812	2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	33
PID 2392 wrote to memory of 2812	2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	33
PID 2392 wrote to memory of 2812	2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	33
PID 2392 wrote to memory of 2812	2392	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	33
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34
PID 2812 wrote to memory of 2888	2812	JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2392
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\6cfe87c2-4c07-4e09-9de3-6a5b981ecdfb" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2780
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2812
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2888

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
9c41dda1f68b4917654e31fe60b11ca8

SHA1
e4ad541313af65178f2c678d3f77e38b55671260

SHA256
9b78a5fbcc58a9e5ad00f36241f2060be82937ae9d94db0117e7db7d084ecf22

SHA512
90dfb56e7b4c78b7d941aa7e4e4b708f82fc27357c367d4604a315910fc0467cdf4f71c3f7825050351b1d32b02d92524e9b801cf3417dbb03fbcd81019ab278

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

Filesize
170B

MD5
21b46b44dd9fdc810bbc2fa8d7437077

SHA1
14f99d0564c79176c619ade0871d0f0cbbf144f4

SHA256
9c4a910ade942490ee206e59455ba8c6868572d0dc16950f588ff3541d5d2657

SHA512
e552b9ebe642de7830063d3e649e4517104b047f529103edbb9e1667ea54b6369fe7e5807a50fc537a39140a952e9577f0e4804018259bbd1f92bcf72df9467c

Download Submit
C:\Users\Admin\AppData\Local\6cfe87c2-4c07-4e09-9de3-6a5b981ecdfb\JaffaCakes118_da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34.exe

Filesize
829KB

MD5
734ae031b3a4a246f4211f4b378be099

SHA1
b98d03592af85cd345f8fd9db3bf1d575e6ce80a

SHA256
da5fc1116d581cf024ca37d8ce816d4311bbe9e48c270c0be1eec4df0ccc5e34

SHA512
11e80d519e59ca626e504eb44f7f801cc1c355f6282a1037e988b8dd089ed3ec2ca59df7cf3a3d04840f0ec3d431d510361e1ef2042573b44abec4488ff94c07

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabEB58.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2352-7-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2352-0-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2352-2-0x0000000001E50000-0x0000000001F6B000-memory.dmp

Filesize
1.1MB

Download
memory/2352-1-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2392-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2392-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2392-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2392-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2392-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-29-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2812-30-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/2812-35-0x0000000000400000-0x0000000000517000-memory.dmp

Filesize
1.1MB

Download
memory/2888-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2888-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2888-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2888-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2888-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2888-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2888-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2888-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2888-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2888-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download