djvu | 40b9fd94cc55d53f7e386153ec83f25b312abfb7acdad208105c760e74fc814a

General

Target

JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
Size

780KB
MD5

468e14503ccc7db47f87533c9a4147f7
SHA1

5ad83d44064214d0d32b6bba580d76d54b404a9b
SHA256

40b9fd94cc55d53f7e386153ec83f25b312abfb7acdad208105c760e74fc814a
SHA512

4b7f0a135059ed177fa692dedf697d6941b50bacf32613e07a55b9c743a10ddf2a11a6e5fd4ea8b0b475755bb896d6ce1494d5b3eb219c913cc7be79c43200e1
SSDEEP

12288:X+yy1ob1Wk7JJTYQStLp9M14DIHeEEFzxrmaQGi/cdlQLyLrylm+uenZURlOwZGS:/NpW3QStm4DUHEFFmaejy/+uNBsE

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 16 IoCs

resource	yara_rule
behavioral2/memory/3992-1-0x0000000004EA0000-0x0000000004FBB000-memory.dmp	family_djvu
behavioral2/memory/4884-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4884-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4884-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4884-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4884-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1232-40-0x0000000000400000-0x0000000000537000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1856	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a56a1037-8c1a-48f8-a745-76e87712a259\\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe\" --AutoStart"	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.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
13	api.2ip.ua
14	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3992 set thread context of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 4472 set thread context of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.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_468e14503ccc7db47f87533c9a4147f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4884	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
4884	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
1232	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
1232	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 3992 wrote to memory of 4884	3992	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	83
PID 4884 wrote to memory of 1856	4884	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	84
PID 4884 wrote to memory of 1856	4884	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	84
PID 4884 wrote to memory of 1856	4884	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	84
PID 4884 wrote to memory of 4472	4884	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	85
PID 4884 wrote to memory of 4472	4884	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	85
PID 4884 wrote to memory of 4472	4884	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	85
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88
PID 4472 wrote to memory of 1232	4472	JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3992
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.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:4884
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\a56a1037-8c1a-48f8-a745-76e87712a259" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1856
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4472
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1232

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
ae58d60ae52f9ec25fb3588ba1c36da2

SHA1
8cb765e1bf052d8611759ba73ab40f796e3ae3f9

SHA256
252db0ea52004a92c904d0c4bc68c74a7905a83f4984088d84d9e2a9625481c3

SHA512
0490eb75109661019277ba525cf7571cdfadb6f8ca7985ce02c40f1a127d5d4e28312c58635ce0e80c05208b0224c478ea66000a2316bd9a5d12e652750aac14

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

Filesize
170B

MD5
a1ac6311f41b76bdb4738789fe9f95b6

SHA1
8af0ca2bc5a852a1300733ff2903e2b408ee8511

SHA256
f7a4608122a9af44a2a02888e613b2e18345211140d96ed8ae4a9576b9fddc95

SHA512
5a0abc0d7306b42bbf05590ee1da193e54238f382c3ae940848a32b5f56372a9fb83438edc16daea5dab1fefbab5ed6bd87b3601ffc463cd38e2f58c09a9b411

Download Submit
C:\Users\Admin\AppData\Local\a56a1037-8c1a-48f8-a745-76e87712a259\JaffaCakes118_468e14503ccc7db47f87533c9a4147f7.exe

Filesize
780KB

MD5
468e14503ccc7db47f87533c9a4147f7

SHA1
5ad83d44064214d0d32b6bba580d76d54b404a9b

SHA256
40b9fd94cc55d53f7e386153ec83f25b312abfb7acdad208105c760e74fc814a

SHA512
4b7f0a135059ed177fa692dedf697d6941b50bacf32613e07a55b9c743a10ddf2a11a6e5fd4ea8b0b475755bb896d6ce1494d5b3eb219c913cc7be79c43200e1

Download Submit
memory/1232-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1232-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1232-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1232-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1232-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1232-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1232-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1232-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1232-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1232-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3992-0-0x0000000004D70000-0x0000000004E01000-memory.dmp

Filesize
580KB

Download
memory/3992-1-0x0000000004EA0000-0x0000000004FBB000-memory.dmp

Filesize
1.1MB

Download
memory/3992-5-0x0000000004D70000-0x0000000004E01000-memory.dmp

Filesize
580KB

Download
memory/4884-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4884-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4884-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4884-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4884-19-0x0000000000400000-0x0000000000537000-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