djvu | e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a

General

Target

JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
Size

834KB
MD5

2e451490fb677f99838dbadd4b800863
SHA1

4e8f45ce4237d2151c022d090806501b256c216b
SHA256

e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a
SHA512

00615f17d63fc247e1a067b6719fa7f5f68cc71ae0a09d3fa8b85370f931a83bea7787577e6d369df427987c250e7952ecb4e5199ef408eb2749eafef2fcd68e
SSDEEP

12288:YFdF90LaqSSUruy+x84q3fDkk4evV3OwtVJ0l79WJjrY1lM5uUN3unnwQ7:otuyQfk4evIqL0foc1lM5zNgw

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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 18 IoCs

resource	yara_rule
behavioral2/memory/3392-2-0x0000000002290000-0x00000000023AB000-memory.dmp	family_djvu
behavioral2/memory/4504-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4504-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4504-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4504-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4504-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3112-49-0x0000000000400000-0x0000000000537000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2656	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7cb3c186-23f4-4bdb-ad7f-d95394314325\\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe\" --AutoStart"	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.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
12	api.2ip.ua
13	api.2ip.ua
21	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3392 set thread context of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 1528 set thread context of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88

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_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4504	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
4504	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
3112	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
3112	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 3392 wrote to memory of 4504	3392	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	83
PID 4504 wrote to memory of 2656	4504	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	84
PID 4504 wrote to memory of 2656	4504	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	84
PID 4504 wrote to memory of 2656	4504	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	84
PID 4504 wrote to memory of 1528	4504	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	85
PID 4504 wrote to memory of 1528	4504	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	85
PID 4504 wrote to memory of 1528	4504	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	85
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88
PID 1528 wrote to memory of 3112	1528	JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.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:4504
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\7cb3c186-23f4-4bdb-ad7f-d95394314325" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2656
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1528
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3112

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
89edcdb3d98fe9e85b7f08fcda4a9076

SHA1
0daa5bff384209fe657012ea1284c4efb132ca39

SHA256
4183a8a4bc56e2f939da9cc58a45948e7e5b362028e92e9f26ef841d89c76c2b

SHA512
a24d3177e39909e6791885f6be6f1e52f26d1300b34f04368042d74e0e9b3704e3056af2c7a9c954bfe46d317dbe22bcc2cb42dd841fa8af259b28d6ad1cab3d

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

Filesize
170B

MD5
dc92cc1d07134a8adf0ed05896caf22d

SHA1
ba1d8fbafce2cca08dde9b327945c7c8cd73d850

SHA256
929eb6cf3a8440a3d8d72330faa2f90625e753aba1a9423fef05b786b3e6ef61

SHA512
d73568065cc8b36b3e08b53feb950c927b869f3f7f37c492aaa1f9e53f0cc1dfffd5961443d82034238bdbba0f0413b31c06c93c9ecf644a74f8ea226f1b8fba

Download Submit
C:\Users\Admin\AppData\Local\7cb3c186-23f4-4bdb-ad7f-d95394314325\JaffaCakes118_e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a.exe

Filesize
834KB

MD5
2e451490fb677f99838dbadd4b800863

SHA1
4e8f45ce4237d2151c022d090806501b256c216b

SHA256
e90243b7ed104c75b6b410f51671701b8026263970b2f4527595751d9f9cdb7a

SHA512
00615f17d63fc247e1a067b6719fa7f5f68cc71ae0a09d3fa8b85370f931a83bea7787577e6d369df427987c250e7952ecb4e5199ef408eb2749eafef2fcd68e

Download Submit
memory/1528-23-0x0000000000400000-0x0000000000515000-memory.dmp

Filesize
1.1MB

Download
memory/1528-19-0x0000000000400000-0x0000000000515000-memory.dmp

Filesize
1.1MB

Download
memory/3112-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3392-1-0x00000000009A0000-0x0000000000A3C000-memory.dmp

Filesize
624KB

Download
memory/3392-2-0x0000000002290000-0x00000000023AB000-memory.dmp

Filesize
1.1MB

Download
memory/4504-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4504-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4504-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4504-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4504-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads