MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f395305daac1c6e8fd577b85bc9132b5358c9e4c4b818b61f76d50d2477a3906. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


DCRat


Vendor detections: 17


Intelligence 17 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f395305daac1c6e8fd577b85bc9132b5358c9e4c4b818b61f76d50d2477a3906
SHA3-384 hash: e3747feb2079221d4ce653b12c6885a7585e78713f25a7656b992f2ffdc680a3ee1497798f2cc5518fb2f34a49bf0044
SHA1 hash: a31af958d3f885e0f55465acc214bdb0d56e672f
MD5 hash: a92e55e04cc2026f53c97bdf0e91f6ba
humanhash: foxtrot-zebra-football-bravo
File name:DCRatBuild.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:1'165'973 bytes
First seen:2024-11-23 01:18:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:U2G/nvxW3Ww0t43eblFYt2e9esxtDyVjD7D1NauFd3YP+ow7d:UbA3042rejxtDydhcQ
Threatray 868 similar samples on MalwareBazaar
TLSH T1324538017E418A11F4191233C2EF894447B5AC512AE6F32B7EBE376D95223937D1EACB
TrID 76.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
16.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
3.0% (.EXE) Win64 Executable (generic) (10522/11/4)
1.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 9494b494d4aeaeac (832 x DCRat, 172 x RedLineStealer, 134 x CryptOne)
Reporter aachum
Tags:DCRat exe sfx


Avatar
iamaachum
https://wdfiles.ru/1twgi

DCRat C2:
http://cy98085.tw1.ru/d08a562e.php?PFbuf5dpubRuS73QeO=pgWijHJVBdCHwBZwahHoPrsNM&ZF23DZ=vPB2h&mVjcLsUft3KdtXkh8xJVasEdHanA=vX&b7b99a30519e3c2e292a564e824776d3=5b034698153668d1ec1ed7aaf90dfff6&e14aa04c57d43a589b010571fdc09bbd=QOyEGMmhDMiJzN0gjYhNmZzYDZwcjYygjYmlTZ5gDZlNjMmhjNjJzY&PFbuf5dpubRuS73QeO=pgWijHJVBdCHwBZwahHoPrsNM&ZF23DZ=vPB2h&mVjcLsUft3KdtXkh8xJVasEdHanA=vX

Intelligence

File Origin
# of uploads :
1
# of downloads :
424
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
dcrat
Create hunting rule
ID:
1
File name:
DCRatBuild.exe
Verdict:
Malicious activity
Analysis date:
2024-11-23 01:23:33 UTC
Tags:
rat dcrat remote darkcrystal evasion stealer netreactor
Link:
https://app.any.run/tasks/9bc4f407-248d-4239-90f7-b031fb6421b7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.VBS.Encrypted.Gen.UNOFFICIAL
Create hunting rule

Win.Trojan.Uztuby-9855059-0
Create hunting rule

Win.Ransomware.Clinix-9868408-0
Create hunting rule

Win.Packed.Msilmamut-9950860-0
Create hunting rule

Win.Packed.Uztuby-9963900-0
Create hunting rule

Win.Packed.Uztuby-9969968-0
Create hunting rule

Win.Malware.Uztuby-9972880-0
Create hunting rule

Win.Trojan.DarkKomet-9976180-0
Create hunting rule

Win.Trojan.Uztuby-10010740-0
Create hunting rule

SecuriteInfo.com.Trojan.Rasftuby.Gen.14.10239.27368.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67412e9ab31374f098339d14
Tags:
phishing autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Launching a process
Creating a file in the Windows subdirectories
Launching many processes
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm cmd cscript explorer fingerprint installer lolbin microsoft_visual_cc obfuscated overlay packed packed packer_detected schtasks sfx
Link:
https://www.filescan.io/uploads/67412d8704cce3ac5e2f2894/reports/9f000a9b-a99e-43ce-a429-ad879bc3e6e3/overview
Verdict:
Malicious
Labled as:
Trojan.MSIL.Basic.8.Gen;Trojan.Uztuby
Link:
https://www.hybrid-analysis.com/sample/f395305daac1c6e8fd577b85bc9132b5358c9e4c4b818b61f76d50d2477a3906
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/558c48fa-3482-4343-814b-d0f9e94a5eae
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1561293
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Sigma detected: Execution from Suspicious Folder
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Schedule system process
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected DCRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1561293 Sample: DCRatBuild.exe Startdate: 23/11/2024 Architecture: WINDOWS Score: 100 59 cy98085.tw1.ru 2->59 61 Suricata IDS alerts for network traffic 2->61 63 Found malware configuration 2->63 65 Antivirus detection for dropped file 2->65 67 14 other signatures 2->67 11 DCRatBuild.exe 3 6 2->11         started        14 dfVXJbANbh.exe 2->14         started        17 dfVXJbANbh.exe 14 2 2->17         started        20 2 other processes 2->20 signatures3 process4 dnsIp5 45 C:\...\portperf.exe, PE32 11->45 dropped 47 C:\...\IQYI1ZQqki4.vbe, data 11->47 dropped 22 wscript.exe 1 11->22         started        79 Multi AV Scanner detection for dropped file 14->79 57 cy98085.tw1.ru 185.114.245.123, 49723, 49729, 49730 TIMEWEB-ASRU Russian Federation 17->57 file6 signatures7 process8 signatures9 69 Windows Scripting host queries suspicious COM object (likely to drop second stage) 22->69 25 cmd.exe 1 22->25         started        process10 process11 27 portperf.exe 3 24 25->27         started        31 conhost.exe 25->31         started        file12 49 C:\Windows\SystemTemp\...\RuntimeBroker.exe, PE32 27->49 dropped 51 C:\Users\Public\Music\dfVXJbANbh.exe, PE32 27->51 dropped 53 C:\Users\Default\Videos\dfVXJbANbh.exe, PE32 27->53 dropped 55 7 other malicious files 27->55 dropped 71 Antivirus detection for dropped file 27->71 73 Multi AV Scanner detection for dropped file 27->73 75 Machine Learning detection for dropped file 27->75 77 2 other signatures 27->77 33 cmd.exe 27->33         started        35 schtasks.exe 27->35         started        37 schtasks.exe 27->37         started        39 25 other processes 27->39 signatures13 process14 process15 41 conhost.exe 33->41         started        43 w32tm.exe 33->43         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f395305daac1c6e8fd577b85bc9132b5358c9e4c4b818b61f76d50d2477a3906
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f395305daac1c6e8fd577b85bc9132b5358c9e4c4b818b61f76d50d2477a3906/
Threat name:
ByteCode-MSIL.Trojan.Uztuby
Create hunting rule
Status:
Malicious
First seen:
2024-11-23 01:19:05 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6oktaxnkyhdor7kxpoc3zejswu2yzhsmjoaywypxnviner32heda._file
Verdict:
malicious
Label(s):
dcrat
Create hunting rule
Similar samples:
1e1a63dc013e9571d1430993d08eb080e5f97339e107efcfdb39bae9aef8ce54
DCRat
78e05cedaa8ac3d3361793ab8b19b6ba2147ea99cd6e406720e90dc5474fcda0
DCRat
d5ac904ea7afae96375fecfe74458e4aaa46f375edb12b950b23825e2ded11ae
DCRat
e1b8ed2880ce666a4d5f4fe82efb15594f53b4d5883b727753948cba14404905
DCRat
error
DCRat
+ 858 additional samples on MalwareBazaar
Result
Malware family:
dcrat
Create hunting rule
Score:
  10/10
Tags:
family:dcrat discovery infostealer rat
Link:
https://tria.ge/reports/241123-bph2eatqey/
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
DCRat payload
DcRat
Dcrat family
Process spawned unexpected child process
Verdict:
Malicious
Tags:
rat dcrat Win.Trojan.Uztuby-9855059-0
YARA:
MAL_EXE_DCRat_Jul_08_2
Link:
https://app.threat.zone/submission/096c4211-b49a-49ef-991b-aaae23c55bc7
Unpacked files
SH256 hash:
4b6302643800dafe4629960e243ba26663f8510c42f4eaf656b1cc510406e408
MD5 hash:
a054982f7e12c1f491eccd25d9c1b5d7
SHA1 hash:
b3c78b1c7c8a95486db06e39f56910d0f3e90996
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/f3c43be8-ea6c-4518-8ca2-1e90a5df0d42/
Parent samples :
f395305daac1c6e8fd577b85bc9132b5358c9e4c4b818b61f76d50d2477a3906
4b6302643800dafe4629960e243ba26663f8510c42f4eaf656b1cc510406e408
SH256 hash:
f395305daac1c6e8fd577b85bc9132b5358c9e4c4b818b61f76d50d2477a3906
MD5 hash:
a92e55e04cc2026f53c97bdf0e91f6ba
SHA1 hash:
a31af958d3f885e0f55465acc214bdb0d56e672f
Detections:
win_xorist_auto
Create hunting rule
Link:
https://www.unpac.me/results/f3c43be8-ea6c-4518-8ca2-1e90a5df0d42/
Malware family:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f395305daac1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f395305daac1c6e8fd577b85bc9132b5358c9e4c4b818b61f76d50d2477a3906

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:win_xorist_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.xorist.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

DCRat

Executable exe f395305daac1c6e8fd577b85bc9132b5358c9e4c4b818b61f76d50d2477a3906

(this sample)

DCRat

Executable exe 4b6302643800dafe4629960e243ba26663f8510c42f4eaf656b1cc510406e408

  
Link
https://tria.ge/241123-bkh6lsznap
  
Delivery method
Distributed via web download
  
Dropping
SHA256 4b6302643800dafe4629960e243ba26663f8510c42f4eaf656b1cc510406e408
  
Dropping
MD5 a054982f7e12c1f491eccd25d9c1b5d7

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipAlloc
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::AttachConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW

Comments