djvu | 7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d

General

Target

JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
Size

761KB
MD5

28969eb1b4a927fade90b20813c29cde
SHA1

a23c6f3fe8a2b00b07c93ea743fc1b757e45e57d
SHA256

7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d
SHA512

f626e453e047770404b387ea90e56e04da07d67cd3be117a644d9a64c1605115ba6251a2bd9e5e829302f3182ecb1d949a6978fe365f8f3ef7a690defc5b8a5f
SSDEEP

12288:NCd+GJSmVFO8Fw1V0ySglQLWmFg/NzRiKSWkOmUUQkEPYQHYQtu+CEHPh2ss:Ni+IVgywP0XyQLWmFg/N1gOnI4YQ4Qts

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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 18 IoCs

resource	yara_rule
behavioral2/memory/4744-2-0x0000000002330000-0x000000000244B000-memory.dmp	family_djvu
behavioral2/memory/556-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3172-47-0x0000000000400000-0x0000000000537000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4424	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9a945202-f623-4be2-bb5e-83115766fcb1\\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe\" --AutoStart"	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.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
10	api.2ip.ua
11	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4744 set thread context of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 1028 set thread context of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86

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_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
556	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
556	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
3172	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
3172	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 4744 wrote to memory of 556	4744	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	82
PID 556 wrote to memory of 4424	556	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	83
PID 556 wrote to memory of 4424	556	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	83
PID 556 wrote to memory of 4424	556	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	83
PID 556 wrote to memory of 1028	556	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	84
PID 556 wrote to memory of 1028	556	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	84
PID 556 wrote to memory of 1028	556	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	84
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86
PID 1028 wrote to memory of 3172	1028	JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.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:556
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\9a945202-f623-4be2-bb5e-83115766fcb1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4424
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1028
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3172

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
a3bc2ba18896038d814052e9752f4ee3

SHA1
aba4482b8dbfb7bb62ba29f5a62c55103f889c9b

SHA256
fe7a3b4b20a9855df27ad6ed3e152823ee45434381a0734f73709272345e9d8f

SHA512
2047445e2af5060906e98508d0917964937d49a7833c489d5d9bd3f2b1733c7f16036a7d8c825d64e430357908e7e4dae27405db907b96224cad234138aa80bf

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

Filesize
170B

MD5
bbb94c6c7cde5a895b610c6098cb2630

SHA1
cad209dde8c9f354926c27325cd9be0750dc079a

SHA256
b5c6c42f7a621c99d196c895bc73f5df5740c1c69a26d0c87f532cb6396d5d27

SHA512
a6364e1d48f8d720cbb4a23423d1e7e29d6509eff2002e3176d8116875bba63a218dc5ade205443354305d11f579db6fe6f06955aeaf032b4a8bf2791363a90c

Download Submit
C:\Users\Admin\AppData\Local\9a945202-f623-4be2-bb5e-83115766fcb1\JaffaCakes118_7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d.exe

Filesize
761KB

MD5
28969eb1b4a927fade90b20813c29cde

SHA1
a23c6f3fe8a2b00b07c93ea743fc1b757e45e57d

SHA256
7d5c1ecf8bae4e798da87f5a15a85ffc769becbe07d7f2d92c46cb6cb94b938d

SHA512
f626e453e047770404b387ea90e56e04da07d67cd3be117a644d9a64c1605115ba6251a2bd9e5e829302f3182ecb1d949a6978fe365f8f3ef7a690defc5b8a5f

Download Submit
memory/556-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1028-23-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/1028-19-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/3172-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3172-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4744-2-0x0000000002330000-0x000000000244B000-memory.dmp

Filesize
1.1MB

Download
memory/4744-1-0x0000000002210000-0x00000000022A5000-memory.dmp

Filesize
596KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads