djvu | 9fc2fc1e5d5030f32a56aab3a6280a2d84736610587b43d06da457eb18758ca5

General

Target

f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
Size

702KB
MD5

f6d403ce6749d1b09bb033e89679f9d0
SHA1

cde64e7900244ac644754a0ad7adc2acf381db81
SHA256

9fc2fc1e5d5030f32a56aab3a6280a2d84736610587b43d06da457eb18758ca5
SHA512

6825e8689867a30655554355fd59e704a8a30b399498907ced0903948e7c47ad942c489fbb5110caefc7827a3f9dfa01e2f378d086774a3891e2f00aa1f50983
SSDEEP

12288:RzRSTkfnSSpug3M6KeHkZN2g9T9m5Z5tgUNIqfYDPkS9rKp9XUaMjbcmHa868:fSw/oO4Qg9wthYDPkGaMjrHa86

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.npph
offline_id
I6hXMDXkHGafsmFBIn2oJ0Y07Q3ZWPy43JWTINt1
payload_url
http://cjto.top/files/penelop/updatewin1.exe

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

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

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

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

http://cjto.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-67ue5AWKVu 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: 0251riuyfgh

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 11 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4196-2-0x00000000029C0000-0x0000000002ADA000-memory.dmp	family_djvu
behavioral2/memory/4196-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-15-0x00000000029C0000-0x0000000002ADA000-memory.dmp	family_djvu
behavioral2/memory/4196-14-0x0000000000400000-0x000000000282D000-memory.dmp	family_djvu
behavioral2/memory/3708-25-0x0000000000400000-0x000000000282D000-memory.dmp	family_djvu
behavioral2/memory/3708-26-0x0000000000400000-0x000000000282D000-memory.dmp	family_djvu
behavioral2/memory/3708-30-0x0000000000400000-0x000000000282D000-memory.dmp	family_djvu
behavioral2/memory/3708-31-0x0000000000400000-0x000000000282D000-memory.dmp	family_djvu
behavioral2/memory/1104-43-0x0000000000400000-0x000000000282D000-memory.dmp	family_djvu
behavioral2/memory/3708-343-0x0000000000400000-0x000000000282D000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Renames multiple (148) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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

Processes:

f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

pid	Process
1104	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

icacls.exe

pid	Process
3996	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\bc79a61e-c63a-444c-bfe3-f3fb59fc946f\\f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe\" --AutoStart"	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

Looks up external IP address via web service 4 IoCs

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

Processes:

flow	ioc
9	api.2ip.ua
10	api.2ip.ua
21	api.2ip.ua
58	api.2ip.ua

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 3 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exe

pid	pid_target	Process	procid_target
2724	4196	WerFault.exe	82
4136	1104	WerFault.exe	98
3264	3708	WerFault.exe	84

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

Processes:

f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exeicacls.exef6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exef6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exef6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exef6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

pid	Process
4196	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
4196	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
3708	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
3708	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
1104	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
1104	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
3708	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
3708	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4196 wrote to memory of 3996	4196	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe	83
PID 4196 wrote to memory of 3996	4196	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe	83
PID 4196 wrote to memory of 3996	4196	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe	83
PID 4196 wrote to memory of 3708	4196	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe	84
PID 4196 wrote to memory of 3708	4196	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe	84
PID 4196 wrote to memory of 3708	4196	f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\bc79a61e-c63a-444c-bfe3-f3fb59fc946f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  - System Location Discovery: System Language Discovery
  PID:3996
- C:\Users\Admin\AppData\Local\Temp\f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3708
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3708 -s 1548
    3⤵
    - Program crash
    PID:3264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4196 -s 2140
  2⤵
  - Program crash
  PID:2724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4196 -ip 4196
1⤵
PID:5004

C:\Users\Admin\AppData\Local\bc79a61e-c63a-444c-bfe3-f3fb59fc946f\f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\bc79a61e-c63a-444c-bfe3-f3fb59fc946f\f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe --Task
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 1624
  2⤵
  - Program crash
  PID:4136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1104 -ip 1104
1⤵
PID:2464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3708 -ip 3708
1⤵
PID:2216

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
68f064c4e9ce955e012fa9845912b0a4

SHA1
50c7ddeeaddb537eb7d899a1e0769f4f81ba2125

SHA256
ecf25ff0dbe42488baf7a512613b90b928cfb50003a3b1995e1b15fed25d70ad

SHA512
a998b4a8a70db1288e767749bbbc7f00a2c2de38bc689979f8cc61c61619ad5b063848b46c1f129328795c6825f2691e361b555349f2b572c66f23bd6d296854

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

Filesize
170B

MD5
7e26055ea7ba4a2bb7b1eaea49ebe11c

SHA1
083cdb1624b55b636211b90ad4d52fc8d8ef6591

SHA256
7c91afa3e19206c038b39cfb490b6b233f201c3deaac17677529642501da8d4a

SHA512
8cf1b44e9d1f71755644613d43f3998c6f99e39a516b71c5c2551afca5308bb97d6a907c46d895785921f78279eef80cd1d759c8d480043a7530c858d6386ac2

Download Submit
C:\Users\Admin\AppData\Local\bc79a61e-c63a-444c-bfe3-f3fb59fc946f\f6d403ce6749d1b09bb033e89679f9d0_JaffaCakes118.exe

Filesize
702KB

MD5
f6d403ce6749d1b09bb033e89679f9d0

SHA1
cde64e7900244ac644754a0ad7adc2acf381db81

SHA256
9fc2fc1e5d5030f32a56aab3a6280a2d84736610587b43d06da457eb18758ca5

SHA512
6825e8689867a30655554355fd59e704a8a30b399498907ced0903948e7c47ad942c489fbb5110caefc7827a3f9dfa01e2f378d086774a3891e2f00aa1f50983

Download Submit
memory/1104-43-0x0000000000400000-0x000000000282D000-memory.dmp

Filesize
36.2MB

Download
memory/3708-25-0x0000000000400000-0x000000000282D000-memory.dmp

Filesize
36.2MB

Download
memory/3708-22-0x0000000000400000-0x000000000282D000-memory.dmp

Filesize
36.2MB

Download
memory/3708-26-0x0000000000400000-0x000000000282D000-memory.dmp

Filesize
36.2MB

Download
memory/3708-30-0x0000000000400000-0x000000000282D000-memory.dmp

Filesize
36.2MB

Download
memory/3708-31-0x0000000000400000-0x000000000282D000-memory.dmp

Filesize
36.2MB

Download
memory/3708-343-0x0000000000400000-0x000000000282D000-memory.dmp

Filesize
36.2MB

Download
memory/4196-14-0x0000000000400000-0x000000000282D000-memory.dmp

Filesize
36.2MB

Download
memory/4196-15-0x00000000029C0000-0x0000000002ADA000-memory.dmp

Filesize
1.1MB

Download
memory/4196-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-1-0x0000000002830000-0x00000000028C7000-memory.dmp

Filesize
604KB

Download
memory/4196-2-0x00000000029C0000-0x0000000002ADA000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads