djvu | dc9fcb210bb6436bee5b9cac39a3a5f9dd06a2e5ebf4062cf0b0e66d14d5236f

General

Target

f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe
Size

799KB
MD5

f01e9f0806b4dd5afbb0d8d4769a0945
SHA1

9d38ef4137809ab8346c94f4f534a4a105151f5f
SHA256

dc9fcb210bb6436bee5b9cac39a3a5f9dd06a2e5ebf4062cf0b0e66d14d5236f
SHA512

ccd5e19d9b16dd1f919a7ddd1c5e68fec4101f33eeff2ba33e21b2a785c2d79b4db7e6f1fbf439ede25fcef9c1c605425ccc8af67a46a950fdbb01d1c6499825
SSDEEP

12288:STz7TeWJ6pEkXtEo5qSwkfzpiMz/IYvjFZdIlcMl7iS5xqalI+DPNtCK4rN2:ST36PXtpIGliMz7vjFIcMrq5+PCtN

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://astdg.top/fhsgtsspen6/get.php

Attributes

extension
.nooa
offline_id
PLtnD1U6oAmgxgJ2nJik1mY9SwUQg07CiN0zSet1
payload_url
http://securebiz.org/dl/build2.exe

http://astdg.top/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-CnI3tI6Ktv 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: 0322gDrgo

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

resource	yara_rule
behavioral2/memory/4188-2-0x00000000031D0000-0x00000000032EB000-memory.dmp	family_djvu
behavioral2/memory/2212-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2212-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2212-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2212-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2212-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-37-0x0000000000400000-0x0000000000537000-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-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4468	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-1-5-21-4092317236-2027488869-1227795436-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\25485f6c-c595-49cb-ac00-b74cb10c9229\\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe\" --AutoStart"	f01e9f0806b4dd5afbb0d8d4769a0945_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
25	api.2ip.ua
27	api.2ip.ua
36	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4188 set thread context of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 3004 set thread context of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2212	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe
2212	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe
1672	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe
1672	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 4188 wrote to memory of 2212	4188	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	88
PID 2212 wrote to memory of 4468	2212	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	92
PID 2212 wrote to memory of 4468	2212	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	92
PID 2212 wrote to memory of 4468	2212	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	92
PID 2212 wrote to memory of 3004	2212	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	93
PID 2212 wrote to memory of 3004	2212	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	93
PID 2212 wrote to memory of 3004	2212	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	93
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96
PID 3004 wrote to memory of 1672	3004	f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe	96

C:\Users\Admin\AppData\Local\Temp\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4188
- C:\Users\Admin\AppData\Local\Temp\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2212
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\25485f6c-c595-49cb-ac00-b74cb10c9229" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4468
- - C:\Users\Admin\AppData\Local\Temp\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3004
  - - C:\Users\Admin\AppData\Local\Temp\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1672

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
1KB

MD5
d4a2daded7cec0b5cc08c1e6819a448e

SHA1
568e28b5b85a5a8a85a6bf5af030c01797da6dd3

SHA256
d129be78954f9d530172135fc941535f50ba88eae4a51dc84395a8549c45b35b

SHA512
e58a4e390f498a565b13608387c69fb56bfd6879558294017ffa1a59223b26f782ebe388320611e295cfebe5cc5532074d7f9c80ba5aba0a8a33c18b9d4b58e0

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
410B

MD5
32b690e4ee95d3f6db8cfb3a98df6db4

SHA1
113c54d564be38b9722801f46a0d08a98d0e604c

SHA256
ac1872cdbe74545df9c29cd55bc4b10076c4dc337a61aa5d26dbabb836f4e174

SHA512
c5463a256e3de64a453552ba94a65cd5e945e19d82f35bee02b2aa0650a604eab528ca23e94560518d7cc6618ccaec1e4cfb6422bbdd7a71086a69aedb854429

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
392B

MD5
02488902a6ac584fdbfa93d0204af700

SHA1
99f53833a27b4174c45fc54d3d70b52eac152cea

SHA256
8762d62b8177d9fefa5c632d27ac15cd2b315c457048a3f80d7fd9a4cd674b40

SHA512
dd4a11973f6f569eed017061828492475f79d9a1063063ad384de05b7aac5476c833e824fe7d7e8f5cabf1dd25be2041d6f7f5c47f08c57716a34f8258056567

Download Submit
C:\Users\Admin\AppData\Local\25485f6c-c595-49cb-ac00-b74cb10c9229\f01e9f0806b4dd5afbb0d8d4769a0945_JaffaCakes118.exe

Filesize
799KB

MD5
f01e9f0806b4dd5afbb0d8d4769a0945

SHA1
9d38ef4137809ab8346c94f4f534a4a105151f5f

SHA256
dc9fcb210bb6436bee5b9cac39a3a5f9dd06a2e5ebf4062cf0b0e66d14d5236f

SHA512
ccd5e19d9b16dd1f919a7ddd1c5e68fec4101f33eeff2ba33e21b2a785c2d79b4db7e6f1fbf439ede25fcef9c1c605425ccc8af67a46a950fdbb01d1c6499825

Download Submit
memory/1672-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2212-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2212-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2212-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2212-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2212-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3004-18-0x0000000001640000-0x00000000016E0000-memory.dmp

Filesize
640KB

Download
memory/4188-2-0x00000000031D0000-0x00000000032EB000-memory.dmp

Filesize
1.1MB

Download
memory/4188-1-0x00000000030B0000-0x0000000003144000-memory.dmp

Filesize
592KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads