djvu | 0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785

General

Target

JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
Size

783KB
MD5

77ac219ea2faa1aace0d07618bf6d186
SHA1

41a25a225f39c0b07a29f44a02fdb81b7844c4fb
SHA256

0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785
SHA512

f6bd16453ba4f99dd638a0d0875c366f613ffb746997be72d26e37aec9d7a78e6a583f4ec07b314c5ec44adc64b767891dee2b71ee4cc0d8f6b1881d22ddf82f
SSDEEP

24576:PNAoY+U/xypdg1DG6B4XBcPRiHMdzdh+L0:n4gg1DGa+URiHNL

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes

extension
.ghas
offline_id
miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1
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-0SLhZxAjRX 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: 0445JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/4780-2-0x0000000002220000-0x000000000233B000-memory.dmp	family_djvu
behavioral2/memory/4060-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4060-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4060-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4060-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4060-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1488-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2828	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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\4513d115-3f4c-4513-b04b-f69499478711\\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe\" --AutoStart"	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.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
6	api.2ip.ua
18	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4780 set thread context of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 3080 set thread context of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87

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_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4060	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
4060	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
1488	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
1488	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4780 wrote to memory of 4060	4780	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	83
PID 4060 wrote to memory of 2828	4060	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	84
PID 4060 wrote to memory of 2828	4060	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	84
PID 4060 wrote to memory of 2828	4060	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	84
PID 4060 wrote to memory of 3080	4060	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	85
PID 4060 wrote to memory of 3080	4060	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	85
PID 4060 wrote to memory of 3080	4060	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	85
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87
PID 3080 wrote to memory of 1488	3080	JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4060
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\4513d115-3f4c-4513-b04b-f69499478711" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2828
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3080
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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
502f85751a27f67d03a0a6e6db93d1c1

SHA1
24627da62ccb738d04232f9b9e0c97addabad9e8

SHA256
acc2de62ebc0dc96733a350be6c9a4dc456cc9efc81f2bc8b926352ab20ec6f4

SHA512
2c0e317307c85a1f8e8bb204f88623e8da48e828e8188de99e16807b79ca413a5943db98687cf64cd6bf2f8ec193d1e809448cc60496a75cca22f4f4d470e7a1

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

Filesize
170B

MD5
0c17117dc18a3b8c2b7e4d6e37a3a72c

SHA1
3135d89bf8f5950398d8c8ac344715c0e0a3248d

SHA256
7093c255059450aa07b43661be0f8e219f543e51ad4cc5040be41b054e39c6ff

SHA512
25ea4d76d7432f9440285454031bc9375f5f3be3e862e642aedc0110388832d543943b814c60617d15f7c55f92e2e36f6ce9aa3d48f1961b8c16f439880429a8

Download Submit
C:\Users\Admin\AppData\Local\4513d115-3f4c-4513-b04b-f69499478711\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe

Filesize
783KB

MD5
77ac219ea2faa1aace0d07618bf6d186

SHA1
41a25a225f39c0b07a29f44a02fdb81b7844c4fb

SHA256
0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785

SHA512
f6bd16453ba4f99dd638a0d0875c366f613ffb746997be72d26e37aec9d7a78e6a583f4ec07b314c5ec44adc64b767891dee2b71ee4cc0d8f6b1881d22ddf82f

Download Submit
memory/1488-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1488-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3080-23-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/3080-19-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/4060-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4060-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4060-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4060-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4060-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4780-2-0x0000000002220000-0x000000000233B000-memory.dmp

Filesize
1.1MB

Download
memory/4780-1-0x00000000007E0000-0x000000000087F000-memory.dmp

Filesize
636KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads