djvu | 5452492faf9dddebb689c54a2f2d932de2a2b6e17e03d1c2c91f3afdc89ed164

General

Target

JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
Size

781KB
MD5

f510384bacc30d8c4fb9e7b69d65b185
SHA1

56f69e4ccafc32d278781c3494a43e132f63868b
SHA256

5452492faf9dddebb689c54a2f2d932de2a2b6e17e03d1c2c91f3afdc89ed164
SHA512

2a1dedc0bfa5a7520d1842ec39a964ab9d34625efef22be315720a260ac695832a862ab6357f7d9490da7308fb52c898592e9b04f1f7006f31c4b71bd1c4a333
SSDEEP

12288:JKpD2QkyuNMX/HiKt6LAQF/bRBlB3BgxAoIaRYHk2gIkXYbsqLMxD:JwSQkLNM/i86cQ5NBl7gxpdwfbsqLM

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://rlrz.org/fhsgtsspen6/get.php

Attributes

extension
.maql
offline_id
xcdIdDNFh62dy3iJsba1COhcfDENsbjPHQQ2Eht1
payload_url
http://znpst.top/dl/build2.exe

http://rlrz.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-pk3SGFlmek 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: 0340gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral3/memory/1900-1-0x0000000004F60000-0x000000000507B000-memory.dmp	family_djvu
behavioral3/memory/4108-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/4108-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/4108-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/4108-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/4108-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/3716-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/3716-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/3716-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/3716-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/3716-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/3716-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/3716-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/3716-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral3/memory/3716-40-0x0000000000400000-0x0000000000537000-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
276	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-1-5-21-3587106988-279496464-3440778474-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\74d545a5-0759-445c-a170-b6d16b6fb00d\\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe\" --AutoStart"	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.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
1	api.2ip.ua
2	api.2ip.ua
6	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1900 set thread context of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 128 set thread context of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82

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_f510384bacc30d8c4fb9e7b69d65b185.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4108	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
4108	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
3716	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
3716	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 1900 wrote to memory of 4108	1900	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	77
PID 4108 wrote to memory of 276	4108	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	78
PID 4108 wrote to memory of 276	4108	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	78
PID 4108 wrote to memory of 276	4108	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	78
PID 4108 wrote to memory of 128	4108	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	79
PID 4108 wrote to memory of 128	4108	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	79
PID 4108 wrote to memory of 128	4108	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	79
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82
PID 128 wrote to memory of 3716	128	JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe	82

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4108
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\74d545a5-0759-445c-a170-b6d16b6fb00d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:276
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:128
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3716

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

System Information Discovery

1

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
c9be626e9715952e9b70f92f912b9787

SHA1
aa2e946d9ad9027172d0d321917942b7562d6abe

SHA256
c13e8d22800c200915f87f71c31185053e4e60ca25de2e41e160e09cd2d815d4

SHA512
7581b7c593785380e9db3ae760af85c1a889f607a3cd2aa5a2695a0e5a0fe8ee751578e88f7d8c997faeda804e2fc2655d859bee2832eace526ed4379edaa3f5

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
f6ea4b457af25b3d0bce33870b1cabd6

SHA1
f568f51e1302b410e479338aa31faeaf894e0b9b

SHA256
a84b97f26c2a19395adb328b94da8c96ded1fe49c74db9b653b2bbae6ee95163

SHA512
bd4743a02f23ca5bee6f733fdcc7ce5d4afd6eb293c725c6223fd3405194c2e187413fd258181bbd7f083462dc8623377bb7f7ed8da1b633b2e56a2d1f42394c

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

Filesize
170B

MD5
407f196d066040937af40cf995964606

SHA1
e95188cd2bae66aa12239e0735814572fc84e2a7

SHA256
d835d6a697360d0064b17c81df20777737874bc3c0eb4bd2ad810898b37acf99

SHA512
5d976be6e78e546a14d21ac3e03ecd76ae5d50c8608b45317875258dfaba11871b52509e864ac24f63ba2ca5f1fc3a358bd6fb20d705b2a6466a491f42410355

Download Submit
C:\Users\Admin\AppData\Local\74d545a5-0759-445c-a170-b6d16b6fb00d\JaffaCakes118_f510384bacc30d8c4fb9e7b69d65b185.exe

Filesize
781KB

MD5
f510384bacc30d8c4fb9e7b69d65b185

SHA1
56f69e4ccafc32d278781c3494a43e132f63868b

SHA256
5452492faf9dddebb689c54a2f2d932de2a2b6e17e03d1c2c91f3afdc89ed164

SHA512
2a1dedc0bfa5a7520d1842ec39a964ab9d34625efef22be315720a260ac695832a862ab6357f7d9490da7308fb52c898592e9b04f1f7006f31c4b71bd1c4a333

Download Submit
memory/1900-1-0x0000000004F60000-0x000000000507B000-memory.dmp

Filesize
1.1MB

Download
memory/1900-0-0x0000000004EC0000-0x0000000004F51000-memory.dmp

Filesize
580KB

Download
memory/1900-4-0x0000000004EC0000-0x0000000004F51000-memory.dmp

Filesize
580KB

Download
memory/3716-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3716-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3716-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3716-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3716-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3716-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3716-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3716-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3716-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4108-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4108-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4108-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4108-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4108-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads