Analysis
-
max time kernel
146s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
27/01/2024, 06:19
Static task
static1
Behavioral task
behavioral1
Sample
797e3e1110e0486621a7b615ef234f1f.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
797e3e1110e0486621a7b615ef234f1f.exe
Resource
win10v2004-20231215-en
General
-
Target
797e3e1110e0486621a7b615ef234f1f.exe
-
Size
723KB
-
MD5
797e3e1110e0486621a7b615ef234f1f
-
SHA1
a89750f80cdb397fe9772544e6ddc3455efc15b0
-
SHA256
bd12c49f8042d22bd417a8012a9d1dd5c086a5b0244d4eac163c2f9b730b8eec
-
SHA512
c0c20b60130a6fc2cf822e50feb8ea2132a9ff2bbc1b11377db41b2df36aeffa5b262da5680fa8759cb472173e9e60c5ab544226afe1971123c7eb143b1e0266
-
SSDEEP
12288:Nq2H/Pr6frpwp4qGwIWyr1FS6TvNK5LODnt8uEPgVpqb+EyyzCOUdEuyKBURh:TfefldtS6TlgOyRb+EyaChEuyK0
Malware Config
Extracted
djvu
http://astdg.top/fhsgtsspen6/get.php
-
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
Signatures
-
Detected Djvu ransomware 17 IoCs
resource yara_rule behavioral2/memory/4976-2-0x0000000004B60000-0x0000000004C7B000-memory.dmp family_djvu behavioral2/memory/316-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/316-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/316-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/316-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/316-18-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-23-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-39-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3420-41-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation 797e3e1110e0486621a7b615ef234f1f.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 8 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\06fe5c60-4eba-4c3c-9999-b0a39ed2602e\\797e3e1110e0486621a7b615ef234f1f.exe\" --AutoStart" 797e3e1110e0486621a7b615ef234f1f.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 21 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4976 set thread context of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 3368 set thread context of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 316 797e3e1110e0486621a7b615ef234f1f.exe 316 797e3e1110e0486621a7b615ef234f1f.exe 3420 797e3e1110e0486621a7b615ef234f1f.exe 3420 797e3e1110e0486621a7b615ef234f1f.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 4976 wrote to memory of 316 4976 797e3e1110e0486621a7b615ef234f1f.exe 88 PID 316 wrote to memory of 8 316 797e3e1110e0486621a7b615ef234f1f.exe 89 PID 316 wrote to memory of 8 316 797e3e1110e0486621a7b615ef234f1f.exe 89 PID 316 wrote to memory of 8 316 797e3e1110e0486621a7b615ef234f1f.exe 89 PID 316 wrote to memory of 3368 316 797e3e1110e0486621a7b615ef234f1f.exe 92 PID 316 wrote to memory of 3368 316 797e3e1110e0486621a7b615ef234f1f.exe 92 PID 316 wrote to memory of 3368 316 797e3e1110e0486621a7b615ef234f1f.exe 92 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96 PID 3368 wrote to memory of 3420 3368 797e3e1110e0486621a7b615ef234f1f.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\797e3e1110e0486621a7b615ef234f1f.exe"C:\Users\Admin\AppData\Local\Temp\797e3e1110e0486621a7b615ef234f1f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Users\Admin\AppData\Local\Temp\797e3e1110e0486621a7b615ef234f1f.exe"C:\Users\Admin\AppData\Local\Temp\797e3e1110e0486621a7b615ef234f1f.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:316 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\06fe5c60-4eba-4c3c-9999-b0a39ed2602e" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:8
-
-
C:\Users\Admin\AppData\Local\Temp\797e3e1110e0486621a7b615ef234f1f.exe"C:\Users\Admin\AppData\Local\Temp\797e3e1110e0486621a7b615ef234f1f.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3368 -
C:\Users\Admin\AppData\Local\Temp\797e3e1110e0486621a7b615ef234f1f.exe"C:\Users\Admin\AppData\Local\Temp\797e3e1110e0486621a7b615ef234f1f.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:3420
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD5117581c8a2ff4fce10d77d2f81dd0cdc
SHA1a0fbeeef3c720485767906ddf3d699f78bd3a692
SHA25614924e43f9d37b1bfca5c3d878e9ad833b26ce047840565801eb2aa2257770e2
SHA5124230d5299fb961cb1d2ea3bd971e3df2cc3bdd10ff4331e672bfb4ab49a68f757df0d433dc0cfc8f07a6b6e0b51166cb571eefa93eb9a41f98197fcce5eec9a8
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD53b9de6831560601ff09ec87729aa712a
SHA1a98a1f7027d0a406f7ee581ceea91b22c985bfb7
SHA256c5e56fcf79f9d1581c6a54fe1ed1e2e97ea927c9a4fe5ada14e770a5de5adf5c
SHA512e68141cd7de91a50c67749317614ae183ae5e6826078f5b01ede566e2f03461693043435f686a65c6e2d1cc5044e2ab7e617e069d801ca14384146c978c6282c
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD5a1c28371391eddea308574b3037df848
SHA19735ace763cc213a153040ecbe0d3d6bd6f40eb1
SHA256ab898305fce434823116aebdd24261c65df599b15c53fab40730714d734a9837
SHA5129c64ecec2f32dd7d578c03d7f1140752d2b25ab2d8e01030f73484c812ca21eba068777aa363b933fdd5b06b0a22faaeaa694ca1530c15f7b334aeadf75ff6bf
-
C:\Users\Admin\AppData\Local\06fe5c60-4eba-4c3c-9999-b0a39ed2602e\797e3e1110e0486621a7b615ef234f1f.exe
Filesize607KB
MD5e5f0045b8e7132ba6749252cf90a0625
SHA11cf640edba0758f946bddcf93a97f7ef2da0c18a
SHA256d7413120af2e9d7e749aac63681d5ca58846e759e830854fe646039bf317b4d3
SHA5126bdb4f213c3eaf9d27d204a10f22d052d4d4a7711d1d4898f4b740e8fd4fd2fd29b88361734004539e7242d48cce17e35d70ec017551d0c04ca8d5046a3da96e