MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b706a1a67f20b5e029c058de6a1e681a36fea762f69b9d983921d0e47ec2bc6c. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b706a1a67f20b5e029c058de6a1e681a36fea762f69b9d983921d0e47ec2bc6c
SHA3-384 hash: 3ee53911090a1dba07250ce4e2217ca027fc75f6f5b61b7d629404cce4ccdc601afebbc3b9b72dcecda7d8c20974b9bf
SHA1 hash: 5bc4dbad7914ceb72dba45d1b1efffba40143653
MD5 hash: 4fb1d8f8dff638f2c9b382f9552b18e2
humanhash: romeo-jersey-ink-equal
File name:4fb1d8f8dff638f2c9b382f9552b18e2.bin.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:1'811'992 bytes
First seen:2024-03-29 14:25:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0ae9e38912ff6bd742a1b9e5c003576a (10 x DCRat, 7 x RedLineStealer, 4 x AsyncRAT)
ssdeep 24576:AubsnafAPyjiDkXubsnafAPyjZrvoW9jdO1T2qdg+GTjMZpCfJYLw289l2zHTJnP:mIpfI1voojGT0MCfJ3AzHTlvxKyH0s1
Threatray 1'259 similar samples on MalwareBazaar
TLSH T1BF851203B5C0D9B2D46218330B26AF61A67DBD301F618DDB93941D5EEE322D0A736B67
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 713317869e1b3371 (1 x DCRat)
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://131217cm.n9shteam3.top/VmtoJsSqldbLinuxTrafficlocal.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
376
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
dcrat
Create hunting rule
ID:
1
File name:
b706a1a67f20b5e029c058de6a1e681a36fea762f69b9d983921d0e47ec2bc6c.exe
Verdict:
Malicious activity
Analysis date:
2024-03-29 14:27:31 UTC
Tags:
evasion dcrat rat backdoor remote stealer
Link:
https://app.any.run/tasks/2558f255-a815-4271-8d4d-35b8bdd18a88

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Running batch commands
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Creating a process with a hidden window
Creating a file
Loading a suspicious library
Creating a file in the Program Files subdirectories
Using the Windows Management Instrumentation requests
Launching a process
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Enabling autorun
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm fingerprint installer lolbin masquerade overlay packed setupapi sfx shdocvw shell32
Link:
https://www.filescan.io/uploads/6606cf7b391c61c4790e876c/reports/c7588e06-5f8c-48f1-b92d-6f032a9e7bb4/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/b706a1a67f20b5e029c058de6a1e681a36fea762f69b9d983921d0e47ec2bc6c
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.
Malware family:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dbe42ad2-2234-4049-bf1f-a491ad349265
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1417539
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Creates multiple autostart registry keys
Creates processes via WMI
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Schedule system process
Sigma detected: System File Execution Location Anomaly
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
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: 1417539 Sample: H9gMIu2HXi.exe Startdate: 29/03/2024 Architecture: WINDOWS Score: 100 100 api.telegram.org 2->100 102 ipinfo.io 2->102 108 Snort IDS alert for network traffic 2->108 110 Antivirus detection for dropped file 2->110 112 Multi AV Scanner detection for dropped file 2->112 116 12 other signatures 2->116 14 H9gMIu2HXi.exe 14 2->14         started        17 winlogon.exe 2->17         started        19 winlogon.exe 2->19         started        22 6 other processes 2->22 signatures3 114 Uses the Telegram API (likely for C&C communication) 100->114 process4 file5 82 C:\Users\user\AppData\Local\Temp\...\work.exe, PE32 14->82 dropped 24 cmd.exe 1 14->24         started        84 C:\Users\user\Desktop\tRVOBpwv.log, PE32 17->84 dropped 86 C:\Users\user\Desktop\rGzNBWQu.log, PE32 17->86 dropped 88 C:\Users\user\Desktop\aEtIhTbg.log, PE32 17->88 dropped 90 3 other malicious files 17->90 dropped 26 cmd.exe 17->26         started        118 Antivirus detection for dropped file 19->118 120 Multi AV Scanner detection for dropped file 19->120 122 Machine Learning detection for dropped file 19->122 signatures6 process7 process8 28 work.exe 13 24->28         started        32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        file9 80 C:\Users\user\AppData\Local\...\dwartg.exe, PE32 28->80 dropped 134 Multi AV Scanner detection for dropped file 28->134 36 dwartg.exe 3 10 28->36         started        signatures10 process11 file12 74 C:\Users\user\...\SurrogatewebSession.exe, PE32 36->74 dropped 76 C:\Users\user\AppData\Roaming\...\xIIr5uE.vbe, data 36->76 dropped 124 Antivirus detection for dropped file 36->124 126 Multi AV Scanner detection for dropped file 36->126 128 Machine Learning detection for dropped file 36->128 40 wscript.exe 1 36->40         started        signatures13 process14 signatures15 132 Windows Scripting host queries suspicious COM object (likely to drop second stage) 40->132 43 cmd.exe 1 40->43         started        process16 process17 45 SurrogatewebSession.exe 23 29 43->45         started        50 conhost.exe 43->50         started        dnsIp18 104 api.telegram.org 149.154.167.220, 443, 49732 TELEGRAMRU United Kingdom 45->104 106 ipinfo.io 34.117.186.192, 443, 49730, 49731 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 45->106 92 C:\Users\user\Desktop\vybNluDs.log, PE32 45->92 dropped 94 C:\Users\user\Desktop\tnEMlbYs.log, PE32 45->94 dropped 96 C:\Users\user\Desktop\lKwWBiIK.log, PE32 45->96 dropped 98 10 other malicious files 45->98 dropped 136 Antivirus detection for dropped file 45->136 138 Multi AV Scanner detection for dropped file 45->138 140 Creates an undocumented autostart registry key 45->140 142 4 other signatures 45->142 52 csc.exe 45->52         started        56 cmd.exe 45->56         started        58 schtasks.exe 45->58         started        60 17 other processes 45->60 file19 signatures20 process21 file22 78 C:\Windows\...\SecurityHealthSystray.exe, PE32 52->78 dropped 130 Infects executable files (exe, dll, sys, html) 52->130 62 conhost.exe 52->62         started        64 cvtres.exe 52->64         started        66 conhost.exe 56->66         started        68 chcp.com 56->68         started        70 w32tm.exe 56->70         started        72 SurrogatewebSession.exe 56->72         started        signatures23 process24
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b706a1a67f20b5e029c058de6a1e681a36fea762f69b9d983921d0e47ec2bc6c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b706a1a67f20b5e029c058de6a1e681a36fea762f69b9d983921d0e47ec2bc6c/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2024-03-28 20:44:59 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w4dkdjt7ec26akoaldpguhtidi3p5j3c62nz3gbzehioi7wcxrwa._file
Verdict:
unknown
Similar samples:
1af4169b81f0bde1a22fda6773fbcb72ee21382ad0630b57a46b553052b4f1e1
DCRat
229e93e38d3f925c10cab628d0618ec8669a739b975984d1576c1ec2e4fecbda
DCRat
4779988f265d9fcdc5ce077d8e9e409b9b53c12218f31364d79fe1b4ed224cfa
DCRat
5dc2b20980fead6b5ae011a1fc8d9f7564193f01ce8881440acd2aee0426a06c
DCRat
79b602eb2703918564bbfa01cded77f8e8308adbeec88a6709d2d78f7509a9a9
DCRat
c70ba8e8c7f7993baf87810415dec2926f2014ef81ad75bdcd819fa1b16166bd
DCRat
f85f4dbc85dd285bcfe990522565ca697b13f6aa865e3f64e730964d78ca775f
DCRat
+ 1'249 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence spyware stealer
Link:
https://tria.ge/reports/240329-rrve8aae2y/
Behaviour
Creates scheduled task(s)
Modifies registry class
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in System32 directory
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Modifies WinLogon for persistence
Process spawned unexpected child process
Unpacked files
SH256 hash:
c0664856c2e59f8cc9e0ff378fed29e6592f429819999e1a44eade9dbc62187e
MD5 hash:
1f994ba149832a45ebedce2d36a2ca21
SHA1 hash:
ab913617de27a1079e7e0b6f871c78801c4caff9
Detections:
INDICATOR_SUSPICIOUS_EXE_Embedded_Gzip_B64Encoded_File
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
Link:
https://www.unpac.me/results/b0cacce5-8083-4614-80c8-309589ad100b/
SH256 hash:
f5df01295f315c2f3c2bb78b0f15602d6955f0671335a719e8e096b62a724b03
MD5 hash:
2caa6f174e1f3ef68f165abd534c7240
SHA1 hash:
9691f9e4de6ccfff4052443a4cb271c309ea81d0
Link:
https://www.unpac.me/results/b0cacce5-8083-4614-80c8-309589ad100b/
SH256 hash:
b706a1a67f20b5e029c058de6a1e681a36fea762f69b9d983921d0e47ec2bc6c
MD5 hash:
4fb1d8f8dff638f2c9b382f9552b18e2
SHA1 hash:
5bc4dbad7914ceb72dba45d1b1efffba40143653
Link:
https://www.unpac.me/results/b0cacce5-8083-4614-80c8-309589ad100b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b706a1a67f20/report/overview.html
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/b706a1a67f20b5e029c058de6a1e681a36fea762f69b9d983921d0e47ec2bc6c

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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
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