djvu | e5d1067f803ffebbca20c29d6be72c150ffbc23a2ba5c017a68bbd70ba6eb451

General

Target

2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
Size

1.1MB
MD5

b44a4cb8600e10c1c9fc218f1af0abdb
SHA1

64a3c362ab62d76dc9e589ec0d728592b830c71f
SHA256

e5d1067f803ffebbca20c29d6be72c150ffbc23a2ba5c017a68bbd70ba6eb451
SHA512

8e78aee3d63d461f1fb77f2a9ac2aaa96f967d2f54d7077175007446362c21244a63e17571847c1681538f7c507df71b5e27bea3889c1ce8436f5b1096b5fe8e
SSDEEP

24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8bWQHUq7:F0dwAYZt6C31WeTVRPOhb7Uq7

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://vrta.top/nddddhsspen6/get.php

Attributes

extension
.sspq
offline_id
ppmn5q6DzrybvhIkCuuqaearFxJ8Rc3difSaWft1
payload_url
http://vrta.top/files/penelop/updatewin1.exe

http://vrta.top/files/penelop/updatewin2.exe

http://vrta.top/files/penelop/updatewin.exe

http://vrta.top/files/penelop/3.exe

http://vrta.top/files/penelop/4.exe

http://vrta.top/files/penelop/5.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-eglcxvZv1s 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: 0304ewgfDd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 1 IoCs

resource	yara_rule
behavioral1/files/0x000700000001878c-16.dat	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Executes dropped EXE 1 IoCs

pid	Process
108	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2684	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\72178ffa-9fc5-427b-95df-524fe4c1d6a2\\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe\" --AutoStart"	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe

Looks up external IP address via web service 5 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
19	api.2ip.ua
20	api.2ip.ua
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 4 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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
2848	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
2848	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
108	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
108	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 2684	1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe	30
PID 1964 wrote to memory of 2684	1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe	30
PID 1964 wrote to memory of 2684	1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe	30
PID 1964 wrote to memory of 2684	1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe	30
PID 1964 wrote to memory of 2848	1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe	31
PID 1964 wrote to memory of 2848	1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe	31
PID 1964 wrote to memory of 2848	1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe	31
PID 1964 wrote to memory of 2848	1964	2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe	31
PID 2480 wrote to memory of 108	2480	taskeng.exe	38
PID 2480 wrote to memory of 108	2480	taskeng.exe	38
PID 2480 wrote to memory of 108	2480	taskeng.exe	38
PID 2480 wrote to memory of 108	2480	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\72178ffa-9fc5-427b-95df-524fe4c1d6a2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Users\Admin\AppData\Local\Temp\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
  "C:\Users\Admin\AppData\Local\Temp\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2848

C:\Windows\system32\taskeng.exe
taskeng.exe {6046B2A4-2B3A-4BCA-A683-CF33CC2C1F49} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Users\Admin\AppData\Local\72178ffa-9fc5-427b-95df-524fe4c1d6a2\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
  C:\Users\Admin\AppData\Local\72178ffa-9fc5-427b-95df-524fe4c1d6a2\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe --Task
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:108

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
7fb5fa1534dcf77f2125b2403b30a0ee

SHA1
365d96812a69ac0a4611ea4b70a3f306576cc3ea

SHA256
33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

SHA512
a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

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
5c59e3016480dd6986ca145490f9777d

SHA1
23f5ec63f59ca60f180799d3514553678a60c97a

SHA256
a709fd4612e9a35ee59073dc7a25ee6786fd6108f2d45308a2a88e05967b5543

SHA512
bc521286d83a04b275797f5c3c8ce59dbee5791d6eb6d4787d342e38cede4b48390d204507acd6d751aa937e72d8266cde717e0f612b5cd779048e45e476f531

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

Filesize
342B

MD5
534466202173b707b763906975107076

SHA1
41d2b1ff9bbe8c62d3272083b44a741181748033

SHA256
fc06c7e575bf7fdf2cb552e45034089444f8a9fb5d3f8c243b63caaf983cb8bb

SHA512
9e5e6d4e844a395dcf12f7dfca0faf0ad4b2d6fb8eb4d284658d7f65a09cd4ff227782c2e6757887194cc011642ee15bbd0a84c23cf22e74a2e24e09cebc90d7

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

Filesize
170B

MD5
b85def9a23c082d74fb94311c887a9a4

SHA1
d4f28c716a32e1c6ca81731054e05789cd5a8602

SHA256
1d16b2c26698d53d0e2fa32e44b8e0f162a67482aa8bd3e7681607e3576528c0

SHA512
94903f37497b95723bdfd331d6bb8f33dc740caa17d4dc87815fde1db21297fee373914f557e1bcc609ba2358788a4c08477d5734d6f46802bb51b6cdcbe4bb4

Download Submit
C:\Users\Admin\AppData\Local\72178ffa-9fc5-427b-95df-524fe4c1d6a2\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe

Filesize
1.1MB

MD5
b44a4cb8600e10c1c9fc218f1af0abdb

SHA1
64a3c362ab62d76dc9e589ec0d728592b830c71f

SHA256
e5d1067f803ffebbca20c29d6be72c150ffbc23a2ba5c017a68bbd70ba6eb451

SHA512
8e78aee3d63d461f1fb77f2a9ac2aaa96f967d2f54d7077175007446362c21244a63e17571847c1681538f7c507df71b5e27bea3889c1ce8436f5b1096b5fe8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF344.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarC84F.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads