MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b839accd55f04cb60d315b05d5ca269bac5ee660bb0d745c945d99744e1c82fd. 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: 11


Intelligence 11 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b839accd55f04cb60d315b05d5ca269bac5ee660bb0d745c945d99744e1c82fd
SHA3-384 hash: 1b677ffd56c96ef256329839e20abd4b584b587a9b296fecd2519c8dbe25c4b82d403ba99ba13677fed407aa5bd59d8f
SHA1 hash: 6c7409616023ba925d758887d7e5d1b14778928a
MD5 hash: e39831f0391c70a6ac0b472ae7c94868
humanhash: salami-saturn-vegan-arkansas
File name:E39831F0391C70A6AC0B472AE7C94868.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:4'019'003 bytes
First seen:2024-04-22 10:55:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 12e12319f1029ec4f8fcbed7e82df162 (390 x DCRat, 52 x RedLineStealer, 51 x Formbook)
ssdeep 49152:IBJEd1tltzoOt4qO2a3Zpo2TpO30EZRNLLqMH5s0A12KkHDbimNSoUL:y6dYfpo2T030wEm5wEDbpNSL
TLSH T12316F142AAA14E32D2B53F3195E7042D42B4D7237652FF2B375E24E5E956230CF362A3
TrID 74.5% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
16.2% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
2.9% (.EXE) Win64 Executable (generic) (10523/12/4)
1.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 9494b494d4aeaeac (832 x DCRat, 172 x RedLineStealer, 134 x CryptOne)
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://185.221.198.248/low70Sql/UpdateCdn/LowTemporaryPython/eternalUploads3Geo/8/eternalLinetrackTemp.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
354
Origin country :
NL NL
Vendor Threat Intelligence
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
Launching a process
Loading a suspicious library
Creating a file in the Program Files subdirectories
Creating a file in the Windows subdirectories
Using the Windows Management Instrumentation requests
Blocking a possibility to launch for the Windows Task Manager (taskmgr)
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b839accd55f04cb60d315b05d5ca269bac5ee660bb0d745c945d99744e1c82fd
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/abbfbc17-b5f5-4055-99b5-33d3e7015a94
Result
Threat name:
PureLog Stealer, zgRAT
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1429601
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Creates an autostart registry key pointing to binary in C:\Windows
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious values (likely registry only malware)
Creates multiple autostart registry keys
Creates processes via WMI
Disable Task Manager(disabletaskmgr)
Disables the Windows task manager (taskmgr)
Drops executables to the windows directory (C:\Windows) and starts them
Infects executable files (exe, dll, sys, html)
Loading BitLocker PowerShell Module
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Schedule system process
Sigma detected: System File Execution Location Anomaly
Snort IDS alert for network traffic
Suspicious execution chain found
Tries to harvest and steal browser information (history, passwords, etc)
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 PureLog Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1429601 Sample: 3m7cmtctck.exe Startdate: 22/04/2024 Architecture: WINDOWS Score: 100 99 Snort IDS alert for network traffic 2->99 101 Antivirus detection for URL or domain 2->101 103 Antivirus detection for dropped file 2->103 105 16 other signatures 2->105 11 3m7cmtctck.exe 3 6 2->11         started        14 powershell.exe 2->14         started        17 WLtOvXOddjEqxAIB.exe 2->17         started        19 3 other processes 2->19 process3 file4 85 C:\CrtNet\HyperContainer.exe, PE32 11->85 dropped 87 C:\CrtNet\UUBE0DxbVO8Ly6sLfy.vbe, data 11->87 dropped 21 wscript.exe 1 11->21         started        127 Antivirus detection for dropped file 14->127 129 Multi AV Scanner detection for dropped file 14->129 131 Machine Learning detection for dropped file 14->131 signatures5 process6 signatures7 107 Windows Scripting host queries suspicious COM object (likely to drop second stage) 21->107 109 Suspicious execution chain found 21->109 24 cmd.exe 1 21->24         started        process8 process9 26 HyperContainer.exe 7 51 24->26         started        30 reg.exe 1 1 24->30         started        32 conhost.exe 24->32         started        file10 77 C:\Windows\...\WLtOvXOddjEqxAIB.exe, PE32 26->77 dropped 79 C:\Users\user\Desktop\zRyGdutx.log, PE32 26->79 dropped 81 C:\Users\user\Desktop\vsOhkTmH.log, PE32 26->81 dropped 83 27 other malicious files 26->83 dropped 115 Antivirus detection for dropped file 26->115 117 Multi AV Scanner detection for dropped file 26->117 119 Creates an undocumented autostart registry key 26->119 125 7 other signatures 26->125 34 cmd.exe 26->34         started        36 csc.exe 26->36         started        40 csc.exe 26->40         started        42 29 other processes 26->42 121 Disable Task Manager(disabletaskmgr) 30->121 123 Disables the Windows task manager (taskmgr) 30->123 signatures11 process12 file13 44 WLtOvXOddjEqxAIB.exe 34->44         started        59 3 other processes 34->59 73 C:\Program Files (x86)\...\msedge.exe, PE32 36->73 dropped 111 Infects executable files (exe, dll, sys, html) 36->111 49 conhost.exe 36->49         started        51 cvtres.exe 36->51         started        75 C:\Windows\...\SecurityHealthSystray.exe, PE32 40->75 dropped 61 2 other processes 40->61 113 Loading BitLocker PowerShell Module 42->113 53 conhost.exe 42->53         started        55 conhost.exe 42->55         started        57 conhost.exe 42->57         started        63 10 other processes 42->63 signatures14 process15 dnsIp16 97 185.221.198.248, 49710, 49711, 49712 M247GB Russian Federation 44->97 89 C:\Users\user\Desktop\xrzzwstq.log, PE32 44->89 dropped 91 C:\Users\user\Desktop\wIGRKNns.log, PE32 44->91 dropped 93 C:\Users\user\Desktop\tBJIovtx.log, PE32 44->93 dropped 95 20 other malicious files 44->95 dropped 133 Tries to harvest and steal browser information (history, passwords, etc) 44->133 135 Adds a directory exclusion to Windows Defender 44->135 65 powershell.exe 44->65         started        67 powershell.exe 44->67         started        69 powershell.exe 44->69         started        71 10 other processes 44->71 file17 signatures18 process19
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b839accd55f04cb60d315b05d5ca269bac5ee660bb0d745c945d99744e1c82fd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b839accd55f04cb60d315b05d5ca269bac5ee660bb0d745c945d99744e1c82fd/
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2024-04-12 17:56:59 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xa42ztkv6bglmdjrlmc5lsrgtowf5ztaxmgxixeulwmxitq4ql6q._file
Verdict:
malicious
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:zgrat evasion persistence rat spyware stealer
Link:
https://tria.ge/reports/240422-m1n8caae9w/
Behaviour
Creates scheduled task(s)
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in System32 directory
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Disables Task Manager via registry modification
Detect ZGRat V1
Modifies WinLogon for persistence
Process spawned unexpected child process
ZGRat
Unpacked files
SH256 hash:
2b93377ea087225820a9f8e4f331005a0c600d557242366f06e0c1eae003d669
MD5 hash:
d8bf2a0481c0a17a634d066a711c12e9
SHA1 hash:
7cc01a58831ed109f85b64fe4920278cedf3e38d
Link:
https://www.unpac.me/results/608ea941-57ec-442e-bc23-5fb9b85d91b2/
SH256 hash:
b17846b4723f409cd537a63b6d94119b087b867d333d6299d3817b5a2dd4a274
MD5 hash:
c922a68ff9fc45caecc05367375738e7
SHA1 hash:
7961de48e64e21bf0e01a71d955cd7003f36d9a4
Link:
https://www.unpac.me/results/608ea941-57ec-442e-bc23-5fb9b85d91b2/
SH256 hash:
77a7496d60a9b41ee303bece6d14e3cca93ff92e8fd0df4dd90c496dfc919834
MD5 hash:
941ebb300ab4560ceefd3d6a25590a61
SHA1 hash:
39055f43b31b476a74880d6fa222fa0862a6e376
Detections:
INDICATOR_EXE_Packed_DotNetReactor
Create hunting rule
Link:
https://www.unpac.me/results/608ea941-57ec-442e-bc23-5fb9b85d91b2/
SH256 hash:
b839accd55f04cb60d315b05d5ca269bac5ee660bb0d745c945d99744e1c82fd
MD5 hash:
e39831f0391c70a6ac0b472ae7c94868
SHA1 hash:
6c7409616023ba925d758887d7e5d1b14778928a
Detections:
INDICATOR_EXE_Packed_DotNetReactor
Create hunting rule
Link:
https://www.unpac.me/results/608ea941-57ec-442e-bc23-5fb9b85d91b2/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b839accd55f0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:INDICATOR_EXE_Packed_DotNetReactor
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with unregistered version of .NET Reactor
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
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: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

File information

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

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