djvu | c8c90476499981166b84df46c15871b2cce74ab65d1e9a6d2dad660b06f80143

General

Target

ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
Size

854KB
MD5

ec3f1269bb1442106d93361f7bde2b43
SHA1

3fe8e6d37aaac065c158bdd8f29b8d9598167dcb
SHA256

c8c90476499981166b84df46c15871b2cce74ab65d1e9a6d2dad660b06f80143
SHA512

96c2c62e0a864c6da1646ef4436b77b1e22cd7d5b1bb08d34d234d6d83c2f610c0d0d8b5f99d3f6821b3aa1c5c2cd72374cd7144bd6a87b10ddbb5fedfca9cc3
SSDEEP

24576:YIHbAiVDPXfiDrJBaWC8sTTmhi/Gw41YeI0bAiOe5dH:YoVDCJBsTyi+wRIp

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.mppq
offline_id
EiZX0rbexOkp612YCVCqdSZE3kObdqTVIZD2j9t1
payload_url
http://asvb.top/files/penelop/updatewin1.exe

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

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

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

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

http://asvb.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-A2MIyY0Wsw 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: 0302ewgfDd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 12 IoCs

resource	yara_rule
behavioral2/memory/1132-2-0x00000000022D0000-0x00000000023EB000-memory.dmp	family_djvu
behavioral2/memory/544-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/544-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/544-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/544-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/544-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3524-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3524-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3524-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3524-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3524-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3524-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware 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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2544	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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\8de0e310-9740-4298-b098-c570daa9426a\\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe\" --AutoStart"	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.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
14	api.2ip.ua
15	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1132 set thread context of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 4188 set thread context of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90

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	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
544	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
544	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
3524	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
3524	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 1132 wrote to memory of 544	1132	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	84
PID 544 wrote to memory of 2544	544	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	87
PID 544 wrote to memory of 2544	544	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	87
PID 544 wrote to memory of 2544	544	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	87
PID 544 wrote to memory of 4188	544	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	88
PID 544 wrote to memory of 4188	544	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	88
PID 544 wrote to memory of 4188	544	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	88
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90
PID 4188 wrote to memory of 3524	4188	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	90

C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.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:544
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\8de0e310-9740-4298-b098-c570daa9426a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2544
- - C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4188
  - - C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3524

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
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
79ba03739b640b3330e0241b2eda1a00

SHA1
742c4275ca6ea0fd4b1084d6ac16462b2e569d8d

SHA256
d9a62538e6896fa06e06114cb32be9a979d2507c45ed9f9a1d192ff3b92003d0

SHA512
c119e7cb1c4e19b608d87a949d5ca4a9ef5c693c34d04b8125aff5271884daa3359d000e3b93642bfcafd07cba71d133acd55b8ee6a87c312ab90dd0c93d278e

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

Filesize
170B

MD5
0c230a974e75470a17acbb8bc58d1630

SHA1
77b9c8d3ba554356bb5a9f7d13f88602bf4158fe

SHA256
9719cb210efd6d234e2805d6c7fe9ee31be915d1d57e187e816bee397d87b375

SHA512
fe3e2d36cbb1a5fb40e01773b06edd4e5125f22c7299e9e02d739817f7ff67f76f5ff9cd0be0004928f3fe6517ebdb57271d01e0e3ee42e70d3260d3b4b959dd

Download Submit
C:\Users\Admin\AppData\Local\8de0e310-9740-4298-b098-c570daa9426a\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe

Filesize
854KB

MD5
ec3f1269bb1442106d93361f7bde2b43

SHA1
3fe8e6d37aaac065c158bdd8f29b8d9598167dcb

SHA256
c8c90476499981166b84df46c15871b2cce74ab65d1e9a6d2dad660b06f80143

SHA512
96c2c62e0a864c6da1646ef4436b77b1e22cd7d5b1bb08d34d234d6d83c2f610c0d0d8b5f99d3f6821b3aa1c5c2cd72374cd7144bd6a87b10ddbb5fedfca9cc3

Download Submit
memory/544-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/544-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/544-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/544-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/544-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1132-2-0x00000000022D0000-0x00000000023EB000-memory.dmp

Filesize
1.1MB

Download
memory/1132-1-0x0000000000690000-0x0000000000729000-memory.dmp

Filesize
612KB

Download
memory/3524-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3524-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3524-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3524-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3524-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3524-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4188-26-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/4188-21-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads