djvu | 7f2f4250168dcf4d43ee844362bf1c697841ab64fa208b308ada76ca4ed9c4a8

Analysis

max time kernel
149s
max time network
132s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 12:35

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General

Target

JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
Size

781KB
MD5

9f8d8cecc6c6b278fa88066e41243f11
SHA1

4fb7295f7dd4cac7719689d89b9f7d29d04e70b8
SHA256

7f2f4250168dcf4d43ee844362bf1c697841ab64fa208b308ada76ca4ed9c4a8
SHA512

c1fe5352b64bbc1f352a6c32818dec887222104327e42c172512f147d9ec27195f65cf4563dbaf501b8102c5bef3331c352673fb1ede7e19e237d62d8adeb515
SSDEEP

12288:Btp/iP6BOIouZsMyn3eoMXsyWFu7rm3pIBZRLFAQcavOUaOi0vcKSph/xD:B3qP6Vyu0Fum5I1L+hl7P/

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://rlrz.org/lancer/get.php

Attributes

extension
.zaps
offline_id
xcdIdDNFh62dy3iJsba1COhcfDENsbjPHQQ2Eht1
payload_url
http://znpst.top/dl/build2.exe

http://rlrz.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-pk3SGFlmek 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: 0341gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 14 IoCs

resource	yara_rule
behavioral1/memory/2736-1-0x00000000049B0000-0x0000000004ACB000-memory.dmp	family_djvu
behavioral1/memory/2944-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2944-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2944-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2944-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2652-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2652-43-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2652-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2652-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2652-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2652-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2652-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2652-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2652-53-0x0000000000400000-0x0000000000537000-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
2936	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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b7b8f0ee-745a-4b9d-8286-b7e662f96c8e\\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe\" --AutoStart"	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.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 2736 set thread context of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 1160 set thread context of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.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_9f8d8cecc6c6b278fa88066e41243f11.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
2652	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
2652	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2736 wrote to memory of 2944	2736	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	30
PID 2944 wrote to memory of 2936	2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	31
PID 2944 wrote to memory of 2936	2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	31
PID 2944 wrote to memory of 2936	2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	31
PID 2944 wrote to memory of 2936	2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	31
PID 2944 wrote to memory of 1160	2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	32
PID 2944 wrote to memory of 1160	2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	32
PID 2944 wrote to memory of 1160	2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	32
PID 2944 wrote to memory of 1160	2944	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	32
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33
PID 1160 wrote to memory of 2652	1160	JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2944
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\b7b8f0ee-745a-4b9d-8286-b7e662f96c8e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2936
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1160
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2652

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
c9be626e9715952e9b70f92f912b9787

SHA1
aa2e946d9ad9027172d0d321917942b7562d6abe

SHA256
c13e8d22800c200915f87f71c31185053e4e60ca25de2e41e160e09cd2d815d4

SHA512
7581b7c593785380e9db3ae760af85c1a889f607a3cd2aa5a2695a0e5a0fe8ee751578e88f7d8c997faeda804e2fc2655d859bee2832eace526ed4379edaa3f5

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
05f373296f7d4c883048934874817d71

SHA1
e0c02057b0e94ace622eb8b53a0df0d967e9c0fa

SHA256
132cbc8b560825ce89f21040679b13de3f8f61920c8f453553973429bf67b275

SHA512
052abfd0bea11f4233442ff396dd9ba0f631add2d4ce91323bc91a831f97baffa407651d1fe94254129211f90adb51dcf8c652a4b6cad8824ff068e250f93ee9

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

Filesize
342B

MD5
5779a7e80c14764bc5f241438011b288

SHA1
74fe647d51136a0094cc7373c3aa5029c17386e9

SHA256
cdbc437abcc8a1152d2ec423fa6135e200e3c525a2c5b2fa1383e5f7fb57dfc7

SHA512
c9629d3a86f09adad2fb0c3762f380ecfad1cef6ea474986ca7cb462db141d3486628a990a48cb6f1b3c1c4794ebe9b4a5b387d51db35c63c68ff5016166f29f

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

Filesize
170B

MD5
302b48c53ac3ade4f7e0ab647108a129

SHA1
a578aed56e491413441c60e0563f914c57a9814c

SHA256
00ce7e551d18e0c8c1a5bd39210c7f5bbdac3827ac6744f83a99f2757c9782c7

SHA512
c64d11d420f60c65bd8339fddedb00929b0a92b7cf6828fa10c7659dda06443272dd27fea69e6dc40100ad91e42c8c511af3b4d0e6c9af98a0438758057a87fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab9212.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\b7b8f0ee-745a-4b9d-8286-b7e662f96c8e\JaffaCakes118_9f8d8cecc6c6b278fa88066e41243f11.exe

Filesize
781KB

MD5
9f8d8cecc6c6b278fa88066e41243f11

SHA1
4fb7295f7dd4cac7719689d89b9f7d29d04e70b8

SHA256
7f2f4250168dcf4d43ee844362bf1c697841ab64fa208b308ada76ca4ed9c4a8

SHA512
c1fe5352b64bbc1f352a6c32818dec887222104327e42c172512f147d9ec27195f65cf4563dbaf501b8102c5bef3331c352673fb1ede7e19e237d62d8adeb515

Download Submit
memory/2652-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2652-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2652-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2652-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2652-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2652-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2652-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2652-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2652-43-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2736-1-0x00000000049B0000-0x0000000004ACB000-memory.dmp

Filesize
1.1MB

Download
memory/2736-0-0x0000000000350000-0x00000000003E1000-memory.dmp

Filesize
580KB

Download
memory/2736-6-0x0000000000350000-0x00000000003E1000-memory.dmp

Filesize
580KB

Download
memory/2944-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2944-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download