djvu | 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd

General

Target

starticon3.exe
Size

725KB
MD5

e8bbb6d921b79101aea7d906a1798f3d
SHA1

4fd59822cdedd1b194d27d2c01a9cde6222de1bb
SHA256

7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd
SHA512

c525e07c65c7be43aa90568f98253b397919cd0f597b1ba446fed51a578ca1aae4c93fa59e1345b20e3216a676ba35c89c67d6ced6bea68da44a53989fa4d656
SSDEEP

12288:O7q+wuEST6sxwGCwuwn5vE2nyrJppqrNSP9kdrzA9PpXtuRt2BoivOnJztu3vdyB:CqrFvGjF5iZqrQag1t7+nJztuHi

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://ring1.ug/As73yhsyU34578hxxx/SDf565g/get.php

Attributes

extension
.coot
offline_id
MRQ5kb5Z12tWuP3e25YoRt4PRDrJd2yuI3coott1
payload_url
http://ring1.ug/files/cost/updatewin1.exe

http://ring1.ug/files/cost/updatewin2.exe

http://ring1.ug/files/cost/updatewin.exe

http://ring1.ug/files/cost/3.exe

http://ring1.ug/files/cost/4.exe

http://ring1.ug/files/cost/5.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like photos, 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-IbdGyCKhdr 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: 0175Asd374y5iuhld

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 8 IoCs

resource	yara_rule
behavioral1/memory/3068-2-0x0000000005120000-0x000000000523A000-memory.dmp	family_djvu
behavioral1/memory/3068-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3068-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3068-24-0x0000000005120000-0x000000000523A000-memory.dmp	family_djvu
behavioral1/memory/3068-23-0x0000000000400000-0x0000000004F0E000-memory.dmp	family_djvu
behavioral1/memory/2648-41-0x0000000000400000-0x0000000004F0E000-memory.dmp	family_djvu
behavioral1/memory/2648-43-0x0000000000400000-0x0000000004F0E000-memory.dmp	family_djvu
behavioral1/memory/2648-45-0x0000000000400000-0x0000000004F0E000-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
948	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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b5dad754-6a8f-4fe6-8269-d858c5b11630\\starticon3.exe\" --AutoStart"	starticon3.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
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

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 3 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	starticon3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	starticon3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3068	starticon3.exe
3068	starticon3.exe
2648	starticon3.exe
2648	starticon3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 948	3068	starticon3.exe	30
PID 3068 wrote to memory of 948	3068	starticon3.exe	30
PID 3068 wrote to memory of 948	3068	starticon3.exe	30
PID 3068 wrote to memory of 948	3068	starticon3.exe	30
PID 3068 wrote to memory of 2648	3068	starticon3.exe	31
PID 3068 wrote to memory of 2648	3068	starticon3.exe	31
PID 3068 wrote to memory of 2648	3068	starticon3.exe	31
PID 3068 wrote to memory of 2648	3068	starticon3.exe	31

C:\Users\Admin\AppData\Local\Temp\starticon3.exe
"C:\Users\Admin\AppData\Local\Temp\starticon3.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\b5dad754-6a8f-4fe6-8269-d858c5b11630" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  - System Location Discovery: System Language Discovery
  PID:948
- C:\Users\Admin\AppData\Local\Temp\starticon3.exe
  "C:\Users\Admin\AppData\Local\Temp\starticon3.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2648

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
13f334a22a91eb4aafa36c82ec382847

SHA1
e5947ca9476470911ca3dc0e89213e98b2322c71

SHA256
276e06b4271b79ee6cb0d83a4e28fb00c11cd91a00c1723bda6ce3182336ac29

SHA512
9bf5368c454be41e1c49730d7b7982345a707ce373867322235106a348af8e8981fbef90fa8d8640b46222a49e07d88a2a707f00cabda99368a41c59b8482bc6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
c56bbb690512d0653c06e48395b22ce5

SHA1
5cf7198b8220c973b92f067d4e86d3922a4e46af

SHA256
1045758fc0cbe168a3c99dedbd616aa10f80b5f5c5e8e1901851015f976e0ee7

SHA512
4b63b0c25dfc16678cf657d17d9dbbe8f221d43c5a122d51db43da3fcee4f581edd88d7cacfd78a5597a908f66a27e8f22fd0ef26f3d4c518b97b99693988c95

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

Filesize
170B

MD5
c3251b7a250a3d941be4bb3965b894f1

SHA1
6d0c049298849803d7f617e7adf766edd6b8cad1

SHA256
0aaf911cbde8ec2b2e7e0391307b35523318a00d08ff3035e0c8457dae55d321

SHA512
7841802a760463732a6a2a213a88e6cf804779e0e90fc36a6bf472e0632aee83ac080c7802ebc173c19d4c08b80f9f639b7d114a1ed0b058cbe4ff55189ab957

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab1B8C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\b5dad754-6a8f-4fe6-8269-d858c5b11630\starticon3.exe

Filesize
725KB

MD5
e8bbb6d921b79101aea7d906a1798f3d

SHA1
4fd59822cdedd1b194d27d2c01a9cde6222de1bb

SHA256
7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd

SHA512
c525e07c65c7be43aa90568f98253b397919cd0f597b1ba446fed51a578ca1aae4c93fa59e1345b20e3216a676ba35c89c67d6ced6bea68da44a53989fa4d656

Download Submit
memory/2648-26-0x00000000002A0000-0x0000000000331000-memory.dmp

Filesize
580KB

Download
memory/2648-41-0x0000000000400000-0x0000000004F0E000-memory.dmp

Filesize
75.1MB

Download
memory/2648-43-0x0000000000400000-0x0000000004F0E000-memory.dmp

Filesize
75.1MB

Download
memory/2648-45-0x0000000000400000-0x0000000004F0E000-memory.dmp

Filesize
75.1MB

Download
memory/3068-23-0x0000000000400000-0x0000000004F0E000-memory.dmp

Filesize
75.1MB

Download
memory/3068-24-0x0000000005120000-0x000000000523A000-memory.dmp

Filesize
1.1MB

Download
memory/3068-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3068-0-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/3068-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3068-2-0x0000000005120000-0x000000000523A000-memory.dmp

Filesize
1.1MB

Download
memory/3068-1-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads