djvu | e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57

Analysis

max time kernel
142s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 18:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
Size

759KB
MD5

b68c88878f6b9bdd0df07df4dd78a5c2
SHA1

0c6d8ed96b2fa7628bbcdd63b445358a40420db2
SHA256

e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57
SHA512

561051c1779b34ec194aa8d51b4697ab3048bc6b661df38573025ff6493a7cfe0d85f01a75e9e1896787d6aeb1dd30085d9fb90e1dd5383934db9fdeb4a91a35
SSDEEP

12288:8yVxZ0fZ1vQd009Fzq40h8IlKD+pwpmH37+1nOTzMDXN+d/JwmYyQiavME2sTGch:kff1eqCk3ihOPMDd+d/JwmWiavMEzTGe

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/3068-2-0x0000000001D40000-0x0000000001E5B000-memory.dmp	family_djvu
behavioral1/memory/2628-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2628-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2628-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2628-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2984-68-0x0000000000400000-0x0000000000537000-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
2696	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\\b9588bf4-329b-4766-8c48-9312a0da1bda\\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe\" --AutoStart"	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.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
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 2576 set thread context of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.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_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
2984	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
2984	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	30
PID 2628 wrote to memory of 2696	2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	31
PID 2628 wrote to memory of 2696	2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	31
PID 2628 wrote to memory of 2696	2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	31
PID 2628 wrote to memory of 2696	2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	31
PID 2628 wrote to memory of 2576	2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	32
PID 2628 wrote to memory of 2576	2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	32
PID 2628 wrote to memory of 2576	2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	32
PID 2628 wrote to memory of 2576	2628	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	32
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33
PID 2576 wrote to memory of 2984	2576	JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\b9588bf4-329b-4766-8c48-9312a0da1bda" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2696
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2576
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2984

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

Loading Replay Monitor...

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
60dec9fa7eb09e2d2c97e48916d9c76e

SHA1
6cf65d2de196086e0286ad3fc85b80213649399f

SHA256
632446321ead1169e7857c2cef9a3db22d367deb5751941f8683e286e0230d6e

SHA512
0ed7669ab829f3432504aab6c9c7c3b012eff456efc00f42649f1016853eed2b471e56fe8f88e1e06eb1c344bffc27bfdc6bd2c66039767fb409d55e33c18369

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

Filesize
342B

MD5
ea55cddceb50d6fd55da927a2bfd9d0e

SHA1
7d67454c97a1d12c8563185bf034aa2d8dd1dde4

SHA256
d159bff276e180fe6e59bf12c32be6938c901abca7878f275e583700e2d6d903

SHA512
1ca44c9e6c8e26b935a220a9a6f538d898c0f3b8408050b03dbfcfba70335699442524cd2557015e853665bf5c08f73a53e4da7058a91eb150b6001e345fbd11

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

Filesize
170B

MD5
3443b15060f74fb4f4dcc7f292ce3b6e

SHA1
dc5f14332a95e2a9ee20bfd17e3c4ef61d97b865

SHA256
10bc519ddf622689fbbac37469159e49babd219a1051f12c50c04f3ffca9365a

SHA512
0dc0e0d34ba0d6c5623a81cfdae802ad8a735de530d8e748a5f9dc1a42c3855c415563db14f34392e0c3d41b14d74d5eae6ae5464f647bce7978e617942e83b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF6CD.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\b9588bf4-329b-4766-8c48-9312a0da1bda\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe

Filesize
759KB

MD5
b68c88878f6b9bdd0df07df4dd78a5c2

SHA1
0c6d8ed96b2fa7628bbcdd63b445358a40420db2

SHA256
e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57

SHA512
561051c1779b34ec194aa8d51b4697ab3048bc6b661df38573025ff6493a7cfe0d85f01a75e9e1896787d6aeb1dd30085d9fb90e1dd5383934db9fdeb4a91a35

Download Submit
memory/2576-30-0x0000000000340000-0x00000000003D1000-memory.dmp

Filesize
580KB

Download
memory/2576-35-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2576-31-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2628-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2628-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2628-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2628-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2628-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2984-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2984-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2984-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2984-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2984-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2984-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2984-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2984-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2984-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3068-0-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/3068-1-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/3068-2-0x0000000001D40000-0x0000000001E5B000-memory.dmp

Filesize
1.1MB

Download
memory/3068-7-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download