djvu | bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9

Analysis

max time kernel
147s
max time network
135s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 10:04

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General

Target

JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
Size

838KB
MD5

361d9b1bee71debf8d966051c0369a9a
SHA1

757949978d35abf2d24b77a4497e19a02a999307
SHA256

bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9
SHA512

2c859936590be2be37e3460378d8d832dec16add1ce87bb70c9cdf84e080fc0bde1c4444121890a32346ed56384060171e06aa208c27d0a7027aa017af23ef83
SSDEEP

12288:Y/IZf5Of+cXoWFfvSn8tcJtkW5lvL1QjSLAPv8SzZtZaAkmEjPR5y7j:Y/0ROfQ0tGsW5hL64u8SzHiHLR5q

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.tuid
offline_id
LgcOIftV0dQfFBQStVNfb8BhHy8tHRPvXwSiFwt1
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-FglTTmgzZT 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: 0440tOjkfd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2236-2-0x0000000001D50000-0x0000000001E6B000-memory.dmp	family_djvu
behavioral1/memory/2228-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2228-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-66-0x0000000000400000-0x0000000000537000-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
3036	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\\47d8ac53-9aac-453c-9b3a-bedd634bc0e6\\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe\" --AutoStart"	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.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
4	api.2ip.ua
5	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2236 set thread context of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2900 set thread context of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32

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_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
2596	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
2596	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2236 wrote to memory of 2228	2236	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	28
PID 2228 wrote to memory of 3036	2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	30
PID 2228 wrote to memory of 3036	2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	30
PID 2228 wrote to memory of 3036	2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	30
PID 2228 wrote to memory of 3036	2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	30
PID 2228 wrote to memory of 2900	2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	31
PID 2228 wrote to memory of 2900	2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	31
PID 2228 wrote to memory of 2900	2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	31
PID 2228 wrote to memory of 2900	2228	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	31
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32
PID 2900 wrote to memory of 2596	2900	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2228
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\47d8ac53-9aac-453c-9b3a-bedd634bc0e6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3036
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2900
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2596

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
966f013cbc7f550b27f283a1b580b84f

SHA1
185025e9f7c0a9dc49d20b4b84fd5873ae06fef1

SHA256
cdae2b85c48a9b23faae5364fc2e95b7d32914bb448dabdfbf29561be4624692

SHA512
3bfa92a51a607db0e16b3f4aef0a12764bc6c752a270dcd2a646aed588a386baaf9bc29a76ac5004ece7e13aac0c230f8ee336eda7de2c9f6bf2ef11f215ebcd

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

Filesize
170B

MD5
a3fb4f1252b94f6fdcd244b07d4a78a1

SHA1
81df07bfdd9ffdc7269105bd0c3b3cfd0e53bde9

SHA256
085156c63a8bb1afa363edb73f0d4679658d0d62ad059214cfa6a25fcfe31b51

SHA512
21811745be1ac9a1c03b0f98c89b6064b7d16eec3dc59bd0fb755149aca5a944889309b0c9cc3d4c5d9e70c897202d7b5302722415866c4f57d02da2ede9f9d4

Download Submit
C:\Users\Admin\AppData\Local\47d8ac53-9aac-453c-9b3a-bedd634bc0e6\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe

Filesize
838KB

MD5
361d9b1bee71debf8d966051c0369a9a

SHA1
757949978d35abf2d24b77a4497e19a02a999307

SHA256
bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9

SHA512
2c859936590be2be37e3460378d8d832dec16add1ce87bb70c9cdf84e080fc0bde1c4444121890a32346ed56384060171e06aa208c27d0a7027aa017af23ef83

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabA351.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2228-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2228-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2236-6-0x0000000001C90000-0x0000000001D21000-memory.dmp

Filesize
580KB

Download
memory/2236-2-0x0000000001D50000-0x0000000001E6B000-memory.dmp

Filesize
1.1MB

Download
memory/2236-1-0x0000000001C90000-0x0000000001D21000-memory.dmp

Filesize
580KB

Download
memory/2236-0-0x0000000001C90000-0x0000000001D21000-memory.dmp

Filesize
580KB

Download
memory/2596-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2900-32-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/2900-28-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/2900-27-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download