djvu | c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096

Analysis

max time kernel
143s
max time network
132s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 19:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
Size

768KB
MD5

31be9b57d69e7969b52069e5e8f7e49d
SHA1

ff64c79866bfc4dfcc9cf5bcab84f63c7e94797f
SHA256

c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096
SHA512

6acb43b0370bfe29ea7366e028b409ab83b5214e79cf729a3ab43af8d11855d4f1d6fd38d7893b0f63b14d9c5a1ce7bda6aa612e80e64dd75cc8139152dd209d
SSDEEP

12288:gRokZncF5Y4LgR7UTg1IRcWnnHGCyx0Zkn9c5pBtbyq4oVMWM0kRf8kq5DjjV:OZn2Y481Ec8HGuenyLbyqNMWM0Mf8h5T

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.nuhb
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
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-c565B1ILoZ 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: 0453Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2140-2-0x0000000001D30000-0x0000000001E4B000-memory.dmp	family_djvu
behavioral1/memory/2584-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2584-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2584-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2584-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2796-69-0x0000000000400000-0x0000000000537000-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
2016	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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2f57e8f1-f9a7-4cd4-9599-5c2e60e7a8b3\\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe\" --AutoStart"	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.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 2140 set thread context of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2820 set thread context of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.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_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
2796	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
2796	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2140 wrote to memory of 2584	2140	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	29
PID 2584 wrote to memory of 2016	2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	30
PID 2584 wrote to memory of 2016	2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	30
PID 2584 wrote to memory of 2016	2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	30
PID 2584 wrote to memory of 2016	2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	30
PID 2584 wrote to memory of 2820	2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	31
PID 2584 wrote to memory of 2820	2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	31
PID 2584 wrote to memory of 2820	2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	31
PID 2584 wrote to memory of 2820	2584	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	31
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32
PID 2820 wrote to memory of 2796	2820	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2584
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\2f57e8f1-f9a7-4cd4-9599-5c2e60e7a8b3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2016
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2796

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
d8ea9d2eee55dc688af606d275fe5e8c

SHA1
af7beeb2ddc1144064c9c80c286b3f7e752e0e64

SHA256
4b6487c3d22e79d86d4b3b7a7c60418666a95941397e61c0a4e6c281f1173797

SHA512
72eaf65ca0bfd023fbd66c296fd77abe503722f56521cfd40968da25458e6328886d0aaedd2e75322f6d22f4e1e1223e6064fd1010293512e628ed087768ddca

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

Filesize
342B

MD5
7462485278613cc933cd12957e0ba76d

SHA1
4632a651a1b4df75164a69cfd1550b5211b72252

SHA256
3736524ea3c8ff85f0d9a114f3a1c22617c34b6b1ca0a9f8f387a258ccb2c3b4

SHA512
c77deb5c5bf2eaa25afc987a5c9adcbbba529c50a3567920b35c43c5e7ea5e2db1f59b9885f5afd6919a2a764622da611206afbfffe38a79973fe1559bf53569

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

Filesize
170B

MD5
96f7661bff99dda0321ff55d6f849edf

SHA1
cbaf88270182d1478edcb408645892862c5ba38c

SHA256
5c38f3849a80448480ad488870b91681929e0ad91e604ea923c170161b309aa0

SHA512
bff7c5bc6f066c14a6b4048f48513e20af8752bbf4278ff1d64382cfca58d234aa3691801b532d903c72699861aba1eb59544f3272dffda1d7a2ea74993b732e

Download Submit
C:\Users\Admin\AppData\Local\2f57e8f1-f9a7-4cd4-9599-5c2e60e7a8b3\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe

Filesize
768KB

MD5
31be9b57d69e7969b52069e5e8f7e49d

SHA1
ff64c79866bfc4dfcc9cf5bcab84f63c7e94797f

SHA256
c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096

SHA512
6acb43b0370bfe29ea7366e028b409ab83b5214e79cf729a3ab43af8d11855d4f1d6fd38d7893b0f63b14d9c5a1ce7bda6aa612e80e64dd75cc8139152dd209d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab82B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2140-0-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2140-6-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2140-2-0x0000000001D30000-0x0000000001E4B000-memory.dmp

Filesize
1.1MB

Download
memory/2140-1-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2584-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2584-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2584-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2584-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2584-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2796-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2820-36-0x0000000000400000-0x00000000004E9000-memory.dmp

Filesize
932KB

Download
memory/2820-30-0x0000000000400000-0x00000000004E9000-memory.dmp

Filesize
932KB

Download
memory/2820-29-0x0000000001D10000-0x0000000001DA2000-memory.dmp

Filesize
584KB

Download