djvu | 994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1

Analysis

max time kernel
140s
max time network
132s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21/12/2024, 23:53

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General

Target

JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
Size

778KB
MD5

bb06d1846ea54e5f14a111df981b1892
SHA1

f2291f33e8b08dc1ef9de6612116e585325d3202
SHA256

994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1
SHA512

5d5ce9d29342783f6ee90c042e64517fd4e3725ebeb28ae6b824716e7c455786af3b63b5344bb6dcd65cf2586619cfbe2c5a05ac758ca0ebccbe4d1b2cae8190
SSDEEP

12288:wtKJjNzLPds7vqfRrZm9mxu1XN92EGMcow/rEjXAvZJ3dkWW:wIZldf7nWNUZdZrEkvvdkWW

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.gtys
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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-fnn5kv33Vv 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: 0439JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2840-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2244-6-0x00000000004F0000-0x000000000060B000-memory.dmp	family_djvu
behavioral1/memory/2840-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2840-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2840-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-70-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-71-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-72-0x0000000000400000-0x0000000000537000-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
2804	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\\64e55182-6e69-4a8f-805f-3e5e2d220f42\\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe\" --AutoStart"	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.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
5	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2244 set thread context of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2780 set thread context of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34

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_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
2612	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
2612	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2244 wrote to memory of 2840	2244	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	30
PID 2840 wrote to memory of 2804	2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	32
PID 2840 wrote to memory of 2804	2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	32
PID 2840 wrote to memory of 2804	2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	32
PID 2840 wrote to memory of 2804	2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	32
PID 2840 wrote to memory of 2780	2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	33
PID 2840 wrote to memory of 2780	2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	33
PID 2840 wrote to memory of 2780	2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	33
PID 2840 wrote to memory of 2780	2840	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	33
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34
PID 2780 wrote to memory of 2612	2780	JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2840
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\64e55182-6e69-4a8f-805f-3e5e2d220f42" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2804
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2780
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2612

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
d072c4eab146679f15dc30539703337a

SHA1
29b2a65445fb6533c728095d411ef80914a15ea1

SHA256
475ffb7a56d5e67d119fff1e943237866f41765df2a058bc9e358ecbac004985

SHA512
238e12f672d7c1f2a3addde3c1cd73008d5878ceccae330bb883eb3c64047f306f42a45a6aa19d4ec1d952112f39c38d9b59f055b8a54ad520bd024a1c5c163a

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

Filesize
342B

MD5
44e5c833ae3d54168a6e0a5f1e88bc25

SHA1
f0d9fcf5a2d8613e410df08141926e57a21ac1cb

SHA256
7291b27dd1610313350ea697328306b02c7ba9857909551ff7da53c1a91f4e6a

SHA512
33f127b91779624c39990e48e2e76f9eb5e7a3d0ecf80ad2978d3ac3bff94272fcb253519f3a7c3140df50ed27b2325edf57ca1f124b23c5b7764be08e5fa39c

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

Filesize
170B

MD5
0804520effff1440031916ab13c9a068

SHA1
9d804a6865a5c592248ff57f3f4c01ee39d5a0cc

SHA256
5733c69d38c2bb3006cdcbf424940d5822b6d1a9231d977ccc36307e06996540

SHA512
c0a24fe7b06cc8815cc5a5ae26df6692e87b7f4293568c823c3d0a4cae475d22009eb93a656d2586d6fb0ae01ee6ea34e7716a0965c24332effd6dcb4a084dc9

Download Submit
C:\Users\Admin\AppData\Local\64e55182-6e69-4a8f-805f-3e5e2d220f42\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe

Filesize
778KB

MD5
bb06d1846ea54e5f14a111df981b1892

SHA1
f2291f33e8b08dc1ef9de6612116e585325d3202

SHA256
994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1

SHA512
5d5ce9d29342783f6ee90c042e64517fd4e3725ebeb28ae6b824716e7c455786af3b63b5344bb6dcd65cf2586619cfbe2c5a05ac758ca0ebccbe4d1b2cae8190

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab2BF0.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2244-1-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2244-0-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2244-6-0x00000000004F0000-0x000000000060B000-memory.dmp

Filesize
1.1MB

Download
memory/2244-5-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2612-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-72-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-71-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2780-32-0x00000000002B0000-0x0000000000342000-memory.dmp

Filesize
584KB

Download
memory/2780-36-0x0000000000400000-0x00000000004EE000-memory.dmp

Filesize
952KB

Download
memory/2840-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2840-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

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memory/2840-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/2840-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/2840-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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