djvu | 46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86

Analysis

max time kernel
148s
max time network
135s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/12/2024, 01:46

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General

Target

JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
Size

800KB
MD5

483c827e527f4e67a36b600e5ee66f0b
SHA1

0ac3839b9e8ae5aa52d0666776043738bb8af57a
SHA256

46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86
SHA512

71a5cba3e02fa5b4e8deb49bff91db3876c2562940ff7bbdd7285f5c5fb949d0cd4cdd03945d9ea824c8fcf277023f2cf9564e4058d4dd0ccf8f57d2c01b8a48
SSDEEP

12288:T5InKMnY5Hs25Q0eGLyowWq0/5NEAMx94aFAcm4WGEAx1Xx9+44kCyZ7xOGb7HZ0:ChY5HZ5pOorqe5CRDlA0W21XxIt42

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.nuhb
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
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-c565B1ILoZ 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: 0453Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/3004-2-0x0000000001E00000-0x0000000001F1B000-memory.dmp	family_djvu
behavioral1/memory/3064-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3064-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3064-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3064-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2124-67-0x0000000000400000-0x0000000000537000-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
2968	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\\54d79dce-af4e-4c7b-8b60-5bb2f64cae73\\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe\" --AutoStart"	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.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 3004 set thread context of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 2696 set thread context of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
2124	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
2124	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3004 wrote to memory of 3064	3004	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	30
PID 3064 wrote to memory of 2968	3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	32
PID 3064 wrote to memory of 2968	3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	32
PID 3064 wrote to memory of 2968	3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	32
PID 3064 wrote to memory of 2968	3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	32
PID 3064 wrote to memory of 2696	3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	33
PID 3064 wrote to memory of 2696	3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	33
PID 3064 wrote to memory of 2696	3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	33
PID 3064 wrote to memory of 2696	3064	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	33
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34
PID 2696 wrote to memory of 2124	2696	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\54d79dce-af4e-4c7b-8b60-5bb2f64cae73" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2968
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2696
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2124

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
ff70919ead5f0c8bdce0fe7ac545717d

SHA1
d173c90ffd4395e41636455664d884d1c38537ea

SHA256
f4aa08340814cb11b879f8f587880c5a8987dfddbceab0a3de3922d5805171a7

SHA512
dc00ba3682725fc826bfc1243dfc17591a74a14128a90d2e7c60466e97ca5e1c28e1785ca2d7522149fc14e6a99996146fe9fef07726fe77fd6b991502ed5a24

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

Filesize
170B

MD5
5ac86204089e71394e13cdb40d7276be

SHA1
e590867ad6a6f9ea1f8c2a7f19f8176c5030f014

SHA256
896a245db0b0cf9dae5949db4a150941c9424a979bd33452835860a582c99991

SHA512
ab0b6de1356ca11a70b9bfd8418d2ee7c335cf3738157469cc2d6a18c3fb430be62d431f106a0552c03ce4acdc342a104ebdf285b891f226a72c5018e6805b24

Download Submit
C:\Users\Admin\AppData\Local\54d79dce-af4e-4c7b-8b60-5bb2f64cae73\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe

Filesize
800KB

MD5
483c827e527f4e67a36b600e5ee66f0b

SHA1
0ac3839b9e8ae5aa52d0666776043738bb8af57a

SHA256
46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86

SHA512
71a5cba3e02fa5b4e8deb49bff91db3876c2562940ff7bbdd7285f5c5fb949d0cd4cdd03945d9ea824c8fcf277023f2cf9564e4058d4dd0ccf8f57d2c01b8a48

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabD0E6.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2124-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-34-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/2696-29-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/2696-28-0x0000000001C60000-0x0000000001CF1000-memory.dmp

Filesize
580KB

Download
memory/3004-2-0x0000000001E00000-0x0000000001F1B000-memory.dmp

Filesize
1.1MB

Download
memory/3004-1-0x0000000000330000-0x00000000003C1000-memory.dmp

Filesize
580KB

Download
memory/3004-0-0x0000000000330000-0x00000000003C1000-memory.dmp

Filesize
580KB

Download
memory/3004-7-0x0000000000330000-0x00000000003C1000-memory.dmp

Filesize
580KB

Download
memory/3064-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3064-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3064-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3064-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3064-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download