MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40d3609e3b05566993450c98a53b3d310ac0da5b2f6a7ce9dae3cff69ddc4f7f. 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: 16


Intelligence 16 IOCs 1 YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40d3609e3b05566993450c98a53b3d310ac0da5b2f6a7ce9dae3cff69ddc4f7f
SHA3-384 hash: 37dca79a9d6a7b61e7718876c90f099d025bd79af3a6c984db190b845a28080e4e8457e5cd80cef9a8dc996e4da190ac
SHA1 hash: ef3a6270e75f5d334ba780dd8f7818548b0e6d81
MD5 hash: 40c7b28ae79b11198b3be7c7de664f68
humanhash: juliet-spaghetti-nine-kilo
File name:40C7B28AE79B11198B3BE7C7DE664F68.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:4'133'808 bytes
First seen:2024-08-21 20:55:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 12e12319f1029ec4f8fcbed7e82df162 (430 x NirCmd, 392 x DCRat, 52 x RedLineStealer)
ssdeep 98304:EL+TeMMOQ/on3tkX1v2FQ03Le/8Vy5opUi:4+yP/+3tav2K03CEVyeUi
Threatray 531 similar samples on MalwareBazaar
TLSH T17316F106B6954D73C2E83FF154D7081E4270D7636A62EF4BB78E10D1AC262B0EF576A2
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 c4c4c4e4f4e4f4c4 (1 x DCRat)
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://pw190.castledev.ru/ProcessBigloadDbWindowsWp.php

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://pw190.castledev.ru/ProcessBigloadDbWindowsWp.php https://threatfox.abuse.ch/ioc/1314409/

Intelligence

File Origin
# of uploads :
1
# of downloads :
427
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
dcrat
Create hunting rule
ID:
1
File name:
40C7B28AE79B11198B3BE7C7DE664F68.exe
Verdict:
Malicious activity
Analysis date:
2024-08-21 20:58:41 UTC
Tags:
pastebin rat dcrat remote darkcrystal
Link:
https://app.any.run/tasks/7a008cbc-ecf3-41ba-8dca-6184945b23dc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.30425.UnRegNetReactor.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.VBS.Encrypted.Gen.UNOFFICIAL
Create hunting rule

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

Win.Packed.Uztuby-10009381-0
Create hunting rule

Win.Packed.Uztuby-10015036-0
Create hunting rule

Win.Packed.Uztuby-10015799-0
Create hunting rule

Win.Packed.Uztuby-10015902-0
Create hunting rule

Win.Packed.Uztuby-10017372-0
Create hunting rule

Win.Packed.Zusy-10023527-0
Create hunting rule

Win.Packed.Basic-10032438-0
Create hunting rule

SecuriteInfo.com.Trojan.GenericKD.38920448.13962.7593.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c65464e7ff3f5a063bb754
Tags:
Encryption Execution Network Other Static Stealth Trojan Msil
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
Creating a file in the Program Files subdirectories
Creating a file in the Windows subdirectories
Creating a file in the %temp% directory
Loading a suspicious library
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP POST request
Blocking a possibility to launch for the Windows Task Manager (taskmgr)
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm epmicrosoft_visual_cc fingerprint installer lolbin microsoft_visual_cc overlay packed packed setupapi sfx shdocvw shell32
Link:
https://www.filescan.io/uploads/66c6546398e036ebc63693ed/reports/516954ae-745f-4ce4-872b-0739891395ab/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/40d3609e3b05566993450c98a53b3d310ac0da5b2f6a7ce9dae3cff69ddc4f7f
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:
Malicious
Link:
https://analyze.intezer.com/analyses/cf990c7d-038e-40e0-acf3-c2b99796c23b
Result
Threat name:
DCRat, PureLog Stealer, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1496971
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Connects to a pastebin service (likely for C&C)
Disable Task Manager(disabletaskmgr)
Disables the Windows task manager (taskmgr)
Drops PE files to the user root directory
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 video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Suricata IDS alerts for network traffic
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected DCRat
Yara detected PureLog Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1496971 Sample: yyTqxbOXbF.exe Startdate: 21/08/2024 Architecture: WINDOWS Score: 100 87 pastebin.com 2->87 89 pw190.castledev.ru 2->89 97 Suricata IDS alerts for network traffic 2->97 99 Antivirus detection for URL or domain 2->99 101 Antivirus detection for dropped file 2->101 105 9 other signatures 2->105 15 yyTqxbOXbF.exe 3 6 2->15         started        signatures3 103 Connects to a pastebin service (likely for C&C) 87->103 process4 file5 85 C:\...\ContainerPerf.exe, PE32 15->85 dropped 18 wscript.exe 1 15->18         started        process6 signatures7 95 Windows Scripting host queries suspicious COM object (likely to drop second stage) 18->95 21 cmd.exe 1 18->21         started        process8 process9 23 ContainerPerf.exe 3 42 21->23         started        27 reg.exe 1 1 21->27         started        29 conhost.exe 21->29         started        file10 77 C:\Windows\Logs\...\cpwLzIKaNvJnTCI.exe, PE32 23->77 dropped 79 C:\Users\user\cpwLzIKaNvJnTCI.exe, PE32 23->79 dropped 81 C:\Users\user\Desktop\ykBqujFp.log, PE32 23->81 dropped 83 29 other malicious files 23->83 dropped 109 Drops PE files to the user root directory 23->109 31 cmd.exe 1 23->31         started        111 Disable Task Manager(disabletaskmgr) 27->111 113 Disables the Windows task manager (taskmgr) 27->113 signatures11 process12 signatures13 117 Uses ping.exe to sleep 31->117 119 Uses ping.exe to check the status of other devices and networks 31->119 34 cpwLzIKaNvJnTCI.exe 14 32 31->34         started        39 w32tm.exe 1 31->39         started        41 conhost.exe 31->41         started        43 chcp.com 1 31->43         started        process14 dnsIp15 91 pastebin.com 104.20.3.235, 443, 49730, 49738 CLOUDFLARENETUS United States 34->91 93 pw190.castledev.ru 65.108.99.35, 49731, 49739, 49741 ALABANZA-BALTUS United States 34->93 69 C:\Users\user\Desktop\yswPCpFX.log, PE32 34->69 dropped 71 C:\Users\user\Desktop\yGeqmKOU.log, PE32 34->71 dropped 73 C:\Users\user\Desktop\uLdYffYa.log, PE32 34->73 dropped 75 24 other malicious files 34->75 dropped 107 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 34->107 45 cmd.exe 34->45         started        file16 signatures17 process18 signatures19 115 Uses ping.exe to sleep 45->115 48 cpwLzIKaNvJnTCI.exe 45->48         started        51 conhost.exe 45->51         started        53 chcp.com 45->53         started        55 PING.EXE 45->55         started        process20 file21 61 C:\Users\user\Desktop\xFiZgNCn.log, PE32 48->61 dropped 63 C:\Users\user\Desktop\wIGRKNns.log, PE32 48->63 dropped 65 C:\Users\user\Desktop\qIuaDyHy.log, PE32 48->65 dropped 67 24 other malicious files 48->67 dropped 57 cmd.exe 48->57         started        process22 process23 59 conhost.exe 57->59         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/40d3609e3b05566993450c98a53b3d310ac0da5b2f6a7ce9dae3cff69ddc4f7f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40d3609e3b05566993450c98a53b3d310ac0da5b2f6a7ce9dae3cff69ddc4f7f/
Threat name:
ByteCode-MSIL.Trojan.Uztuby
Create hunting rule
Status:
Malicious
First seen:
2024-08-16 01:09:43 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=idjwbhr3avlgte2fbsmkkoz5gefmbws3f5vhz2o24ph7nho4j57q._file
Verdict:
malicious
Similar samples:
00d68c00be975ed8b240541a7dcf269239738237d05d90408100abe2ea872baf
DCRat
0266dc2bf6eb73b5ef4770bedecadbffb0c35cd3b17c9a97e39712d92f17d199
DCRat
03cc43cede18ab080d9f1e79755b23a3eba74bec02f1ddf89871b2443f974a7b
DCRat
08d8919249b3f442106283b5a413eaff6b6b3d9ca76ec7c3a88101b54bab0fe4
DCRat
0cc11a51bcc10b49a00e1334f2b463b8f6bd6f998b8d1e6f13fce93e9b577582
DCRat
4eb2e889aafdbad87d66fad00dabe1fba5c935b9743a7dea3ec5c2def6a0b55c
DCRat
b1637a25a2959c9a6da241d94d8ddac92f3e542d86dbebdc47c1a06a4f6190a0
DCRat
+ 521 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery evasion
Link:
https://tria.ge/reports/240821-zqzybatfml/
Behaviour
Modifies registry class
Modifies registry key
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Program Files directory
Drops file in Windows directory
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Disables Task Manager via registry modification
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2992bc54-14cc-47cf-ab64-cae2e7472a1e
Unpacked files
SH256 hash:
2b93377ea087225820a9f8e4f331005a0c600d557242366f06e0c1eae003d669
MD5 hash:
d8bf2a0481c0a17a634d066a711c12e9
SHA1 hash:
7cc01a58831ed109f85b64fe4920278cedf3e38d
Link:
https://www.unpac.me/results/2d713ac7-6255-445c-986c-2a72d53bdf4c/
SH256 hash:
5fa3da23ef92f5879219c71653fb9e429f68fba206f7c5175073e4ff0f9ba460
MD5 hash:
6a27a7d33a0a6b30ec48b89e8d2a8fe1
SHA1 hash:
30497326eccf83aef6dac416f9847bf7da2329aa
Link:
https://www.unpac.me/results/2d713ac7-6255-445c-986c-2a72d53bdf4c/
SH256 hash:
c807156a66ce066352e4fc3e6538eabf623a4c5546c27fa998ab9a95f858be17
MD5 hash:
6185ea8036d5aa44c2919566858cfeae
SHA1 hash:
206ce3b84d8427c010191f317371aceb00c410f6
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/2d713ac7-6255-445c-986c-2a72d53bdf4c/
SH256 hash:
40d3609e3b05566993450c98a53b3d310ac0da5b2f6a7ce9dae3cff69ddc4f7f
MD5 hash:
40c7b28ae79b11198b3be7c7de664f68
SHA1 hash:
ef3a6270e75f5d334ba780dd8f7818548b0e6d81
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/2d713ac7-6255-445c-986c-2a72d53bdf4c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/40d3609e3b05566993450c98a53b3d310ac0da5b2f6a7ce9dae3cff69ddc4f7f

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: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:INDICATOR_EXE_Packed_DotNetReactor
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with unregistered version of .NET Reactor
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

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