djvu | 5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 05:33

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General

Target

JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
Size

761KB
MD5

e3e4f2700cbc9ff72c7dd11e6f60f791
SHA1

939b9755c8a76956d603f3f051d01358cd10f390
SHA256

5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2
SHA512

ff232d8179e11d31fa5d9acd774ccac8a3c79fee4659616bd5093ebe7505bd69793e068b94b7d43ebf99b29670f3d14dd3e813ecac39d7826ac8d4064b196b6d
SSDEEP

12288:LFY2aF53alBO33jvolgHLTrjgQGj9j77lOsIW/oUCdr3D6fGwAknnxkm:i2aiz6drvj1yZIsIso5rEzkm

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.dmay
offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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-FT7BNVbXC9 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: 0458JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2748-2-0x0000000001D90000-0x0000000001EAB000-memory.dmp	family_djvu
behavioral1/memory/2824-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2824-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2824-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2824-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2096-67-0x0000000000400000-0x0000000000537000-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
2552	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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\6df98aa5-c458-4172-b299-33246ef60d96\\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe\" --AutoStart"	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.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 2748 set thread context of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2580 set thread context of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.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_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
2096	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
2096	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2748 wrote to memory of 2824	2748	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	30
PID 2824 wrote to memory of 2552	2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	31
PID 2824 wrote to memory of 2552	2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	31
PID 2824 wrote to memory of 2552	2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	31
PID 2824 wrote to memory of 2552	2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	31
PID 2824 wrote to memory of 2580	2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	32
PID 2824 wrote to memory of 2580	2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	32
PID 2824 wrote to memory of 2580	2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	32
PID 2824 wrote to memory of 2580	2824	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	32
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33
PID 2580 wrote to memory of 2096	2580	JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2824
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\6df98aa5-c458-4172-b299-33246ef60d96" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2552
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2580
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2096

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
b6e238c442635170444a9280a73c0824

SHA1
a45507deeffeb31414d9f0e42bcc60af9e568e2b

SHA256
7b5fdb6f4a245eb8bf1ed584ce9cafec9f8c884d568892125ad902080681aaf3

SHA512
18125760711719b8a4b5c3a651e4a8081291d9ecd52d7fd0f287173626f14ac7c5f8963f5756d2af94cc0f65888575fe7a9298cfa16553c75364eaec78ad7d55

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

Filesize
342B

MD5
90e4c440dcf594567c4896ae2574fa43

SHA1
524d21ca76300b8b060b101803c36217c9b3eb48

SHA256
173574c36735c3371ff6951e766f2e72d34092d716a5b9c34f8448e1eeb9cd96

SHA512
964e8deb2ad819b1e4f29e29cf8e18116d4da6e7a61e4062b13a5df3bb564840344efbfd31ed312a1a3091451be6c2c351b1f950546073d03aff2dd704d167a0

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

Filesize
170B

MD5
24d485adda4e8d114ca1dcf95ceb0fcb

SHA1
b480cfd131c4cb344c42a9ce7258c3cf6cd24378

SHA256
85c7a1f610e38598af80bee1744ee12adbc0949017d384de0a7469c5bf2b3c1d

SHA512
75a8ab82fd811392f9d15e719e1aa9416265072aaab76635d64461b5e2ec27fdf022da0d78d77557e4dd962b5f2ab23d8c0333f8d394801ea85b96b16986d6be

Download Submit
C:\Users\Admin\AppData\Local\6df98aa5-c458-4172-b299-33246ef60d96\JaffaCakes118_5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2.exe

Filesize
761KB

MD5
e3e4f2700cbc9ff72c7dd11e6f60f791

SHA1
939b9755c8a76956d603f3f051d01358cd10f390

SHA256
5f1667cc07b5b10456ba5f14253279935af020ae206e8030e49e97ddd7bbfce2

SHA512
ff232d8179e11d31fa5d9acd774ccac8a3c79fee4659616bd5093ebe7505bd69793e068b94b7d43ebf99b29670f3d14dd3e813ecac39d7826ac8d4064b196b6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab57D.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2096-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2096-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2096-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2096-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2096-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2096-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2096-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2096-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2096-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2096-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2580-35-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2580-30-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2580-29-0x0000000001CE0000-0x0000000001D71000-memory.dmp

Filesize
580KB

Download
memory/2748-2-0x0000000001D90000-0x0000000001EAB000-memory.dmp

Filesize
1.1MB

Download
memory/2748-1-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download
memory/2748-0-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download
memory/2748-6-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download
memory/2824-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2824-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2824-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2824-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download