djvu | 7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794

Analysis

max time kernel
145s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 18:25

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General

Target

JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
Size

767KB
MD5

80a5d8f634257cbfeb6ce7c8bcdd4bac
SHA1

c2673b315213ce1dd9b1ace0cb27e185b7ea3e11
SHA256

7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794
SHA512

247a99cc29122e2e12b0fc0669b10bbb2860db0ca0e1f70c33384e6135a4835eb287a3b8aa039a8027810de174768d21b942a5a88f60fbe7768f0a380dafa697
SSDEEP

12288:DkQBhhuIw/VJM0Kkt2w0ILHrIGfHkV5bOfNsRlojub6w:4kEjuXkvL8GfETOiRlo6b6w

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 16 IoCs

resource	yara_rule
behavioral1/memory/1704-5-0x0000000001CE0000-0x0000000001DFB000-memory.dmp	family_djvu
behavioral1/memory/2104-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2104-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2104-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2104-10-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2104-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2784-68-0x0000000000400000-0x0000000000537000-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
2980	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\15865f8f-d985-4575-930a-320daaca3c53\\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe\" --AutoStart"	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.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 1704 set thread context of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 2812 set thread context of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35

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_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
2784	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
2784	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 1704 wrote to memory of 2104	1704	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	30
PID 2104 wrote to memory of 2980	2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	33
PID 2104 wrote to memory of 2980	2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	33
PID 2104 wrote to memory of 2980	2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	33
PID 2104 wrote to memory of 2980	2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	33
PID 2104 wrote to memory of 2812	2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	34
PID 2104 wrote to memory of 2812	2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	34
PID 2104 wrote to memory of 2812	2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	34
PID 2104 wrote to memory of 2812	2104	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	34
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35
PID 2812 wrote to memory of 2784	2812	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\15865f8f-d985-4575-930a-320daaca3c53" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2980
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.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_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2784

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
cf52b6ceb7839dd0ac0b64f6ecd1aa5e

SHA1
613ce470f9c5aafd726c1b42b2a88075334fa273

SHA256
6414437ef2cb52475c226a2b18fcacdee4c05ea7759eb2873f3ce5a4b1a98f63

SHA512
94e2e24ee87ee769d9962cdaf698ea66dcd7f34884976247ffb586ebd552d24009f4c0b8e733c9b48a26adcb9cc865c216bf5f01aa149685db363303a6942b99

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

Filesize
170B

MD5
7e322fe5b921aa21ead3b38f36e5c1d2

SHA1
6744ab5de85b5dce495425343ce1137fbe800f1b

SHA256
7f6a6fbdeae6d30da5ae9a4be390e25372368f4162aa2d548d6604a911b3d3b1

SHA512
6a8c28c1a7c72405859a78c9ad2ea850e9a2784fe9d5761558d41607ec681fe8fd83c401ee8b69e1f8d5613dbc169c585613eacd81de05c92a2ad58b9a42aa57

Download Submit
C:\Users\Admin\AppData\Local\15865f8f-d985-4575-930a-320daaca3c53\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe

Filesize
767KB

MD5
80a5d8f634257cbfeb6ce7c8bcdd4bac

SHA1
c2673b315213ce1dd9b1ace0cb27e185b7ea3e11

SHA256
7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794

SHA512
247a99cc29122e2e12b0fc0669b10bbb2860db0ca0e1f70c33384e6135a4835eb287a3b8aa039a8027810de174768d21b942a5a88f60fbe7768f0a380dafa697

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF48C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1704-6-0x0000000000510000-0x00000000005A1000-memory.dmp

Filesize
580KB

Download
memory/1704-0-0x0000000000510000-0x00000000005A1000-memory.dmp

Filesize
580KB

Download
memory/1704-5-0x0000000001CE0000-0x0000000001DFB000-memory.dmp

Filesize
1.1MB

Download
memory/1704-1-0x0000000000510000-0x00000000005A1000-memory.dmp

Filesize
580KB

Download
memory/2104-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-10-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2104-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2812-35-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2812-30-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

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

Filesize
580KB

Download