djvu | 7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22

Analysis

max time kernel
148s
max time network
134s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 02:43

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General

Target

JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
Size

726KB
MD5

cfae76c0b88ef47158f4a1b010d75097
SHA1

8f8eeb9e0b224aa7c64b3b9c8f88955184961f08
SHA256

7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22
SHA512

c10a61f6b4924dfec37d41fef1c5fe73cf7b8902bd77c22417f906a68566dbf292862a08636663e087e28e7af796719209b2f31bc089764992f1da9b0b27b5ff
SSDEEP

12288:JVLK9KOH/hCnAPOsKy+wIL98G+IDRLCBy2jxhHIfMFImVpKoe7HWgRH9y89h/er:JVeSZhy+5vzD8By2jJIm7iLhRH93q

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/2484-2-0x00000000004C0000-0x00000000005DB000-memory.dmp	family_djvu
behavioral1/memory/1724-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1724-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1724-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1724-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2700-66-0x0000000000400000-0x0000000000537000-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
2792	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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b5e8282f-9e6d-4001-b9ba-80ec43fc63bc\\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe\" --AutoStart"	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.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
4	api.2ip.ua
5	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2484 set thread context of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2664 set thread context of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35

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_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
2700	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
2700	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 2484 wrote to memory of 1724	2484	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	31
PID 1724 wrote to memory of 2792	1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	33
PID 1724 wrote to memory of 2792	1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	33
PID 1724 wrote to memory of 2792	1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	33
PID 1724 wrote to memory of 2792	1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	33
PID 1724 wrote to memory of 2664	1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	34
PID 1724 wrote to memory of 2664	1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	34
PID 1724 wrote to memory of 2664	1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	34
PID 1724 wrote to memory of 2664	1724	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	34
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35
PID 2664 wrote to memory of 2700	2664	JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1724
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\b5e8282f-9e6d-4001-b9ba-80ec43fc63bc" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2792
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2664
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2700

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
3a6cf6bb5c1403c6bf61e1b21719cabe

SHA1
b35eb274cbf9abc3b7ce28dc73bbd5fbc159a73a

SHA256
e942c54cbf260fdad4e3ab9f7856dde24db425830458c762af42715eea8d5ff6

SHA512
15de9989435868a2cf2d0c4d618529aa6d59a09fe447ef420657d3fed55c63c28538dad58a9e31ac4939cacfb0db4d33210e00b6baa2169d225aa34113745ec0

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

Filesize
170B

MD5
802fdbee686adca377afce469a7fe9db

SHA1
dfda3a994de9593d483eeba81caa918044286c93

SHA256
7dc3923e4c6cedbcacde0eed03f62737aa33829c41d921d44cad57b896b28ce6

SHA512
dc1d4db5d71084394a8a3e4417746d3eabe91fc04d7bed10aa692bc595e3c7f85bbcb8697854d61d44005193fde78426b47567b00885b9308ceac82a44d8fc59

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF844.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\b5e8282f-9e6d-4001-b9ba-80ec43fc63bc\JaffaCakes118_7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22.exe

Filesize
726KB

MD5
cfae76c0b88ef47158f4a1b010d75097

SHA1
8f8eeb9e0b224aa7c64b3b9c8f88955184961f08

SHA256
7080b221d41c869039699cdf1a607dfb1bc8fc619d547382463d6a02de2d3f22

SHA512
c10a61f6b4924dfec37d41fef1c5fe73cf7b8902bd77c22417f906a68566dbf292862a08636663e087e28e7af796719209b2f31bc089764992f1da9b0b27b5ff

Download Submit
memory/1724-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1724-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1724-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1724-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1724-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2484-7-0x0000000000230000-0x00000000002C2000-memory.dmp

Filesize
584KB

Download
memory/2484-0-0x0000000000230000-0x00000000002C2000-memory.dmp

Filesize
584KB

Download
memory/2484-2-0x00000000004C0000-0x00000000005DB000-memory.dmp

Filesize
1.1MB

Download
memory/2484-1-0x0000000000230000-0x00000000002C2000-memory.dmp

Filesize
584KB

Download
memory/2664-33-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2664-28-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2664-27-0x0000000000290000-0x0000000000322000-memory.dmp

Filesize
584KB

Download
memory/2700-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2700-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download