djvu | 5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97

Analysis

max time kernel
142s
max time network
130s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 02:12

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General

Target

JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
Size

785KB
MD5

6ef183914d16f33759b84698c23078c5
SHA1

485346b5c50d069ebfc24a0ddbd5e8bcaf1deeff
SHA256

5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97
SHA512

d113f446a49313be0574cd7efb1a846acbb024a114c0e7ddaad0f88fb5e4ee726838cf1983bd2898b9a69dd8d07f8adb5355e8a7a3c3a52f63d62c7f559efdf6
SSDEEP

12288:QWByVEFguitYLOfxgPqsen9tDaozRWDySTUrtBQawB/nH6r6ii9PjiAaf:9LgnuS0e94o48Ma6H6rK9PjiA

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/2400-2-0x0000000001D80000-0x0000000001E9B000-memory.dmp	family_djvu
behavioral1/memory/2724-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2724-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3012-70-0x0000000000400000-0x0000000000537000-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
2572	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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\367a24cc-b8eb-4d4f-8790-fa7d59116cb5\\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe\" --AutoStart"	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.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 2400 set thread context of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2604 set thread context of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.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_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
3012	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
3012	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2400 wrote to memory of 2724	2400	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	30
PID 2724 wrote to memory of 2572	2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	31
PID 2724 wrote to memory of 2572	2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	31
PID 2724 wrote to memory of 2572	2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	31
PID 2724 wrote to memory of 2572	2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	31
PID 2724 wrote to memory of 2604	2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	32
PID 2724 wrote to memory of 2604	2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	32
PID 2724 wrote to memory of 2604	2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	32
PID 2724 wrote to memory of 2604	2724	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	32
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33
PID 2604 wrote to memory of 3012	2604	JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2724
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\367a24cc-b8eb-4d4f-8790-fa7d59116cb5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2572
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2604
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3012

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
39bc1adfff28d768c57cdaa49859cb10

SHA1
0d1a909015cdbefe27789ccc00f7baf5c67dec05

SHA256
c652630879ce865c010035e946690bf145e93f0930927f97b1dd69e421ac9129

SHA512
716c85a633abd3bc60633fb345ca1a399cbbf2325be41cdbcacd7d52feae69c0cf1e4c46ad41519365f2acaa43270319e6128ecc5c8060416be6789cc42030d1

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

Filesize
342B

MD5
e6b0d816f859711a76a52dcc11189526

SHA1
465389e41f2e7b11b3deae1062cb69c6104bc671

SHA256
1963b021b1bbccab36982c79c7ac009ec9d2050553c1c7434d497eb66039427d

SHA512
080450e0b28472ea134f957416c79e5ea7c8eb0d1195cf213c79b9046a35949f0449ea57064b6df1ba024cd87faae8ac3fc37567ae199c3d796b520826b186fa

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

Filesize
170B

MD5
35e3c1426ec129ef5de770b38c766943

SHA1
f24bd02bcd9f2451240ebec94c62bb84563f72c4

SHA256
cf19dd133a1c2690c93df10483f83556387bef869f90ffe2e86deca55f7313df

SHA512
9b306ef62705bde360c3ce436f0225f3cc938ce2cb06acace2bd4e901e207562858499d92194121cf9302541682a5e223df4f6adb8e14232e39a62ced372db49

Download Submit
C:\Users\Admin\AppData\Local\367a24cc-b8eb-4d4f-8790-fa7d59116cb5\JaffaCakes118_5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97.exe

Filesize
785KB

MD5
6ef183914d16f33759b84698c23078c5

SHA1
485346b5c50d069ebfc24a0ddbd5e8bcaf1deeff

SHA256
5488516832a0c637c9144a81ccf59260ab0be3606b8779775f5dd97f74768a97

SHA512
d113f446a49313be0574cd7efb1a846acbb024a114c0e7ddaad0f88fb5e4ee726838cf1983bd2898b9a69dd8d07f8adb5355e8a7a3c3a52f63d62c7f559efdf6

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab7C70.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2400-7-0x00000000002A0000-0x0000000000332000-memory.dmp

Filesize
584KB

Download
memory/2400-0-0x00000000002A0000-0x0000000000332000-memory.dmp

Filesize
584KB

Download
memory/2400-2-0x0000000001D80000-0x0000000001E9B000-memory.dmp

Filesize
1.1MB

Download
memory/2400-1-0x00000000002A0000-0x0000000000332000-memory.dmp

Filesize
584KB

Download
memory/2604-30-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2604-31-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/2604-35-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/2724-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download