MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6c91c67b0030b27e7008734fdef7595c6f0eef497b5948b5d9b7bacce2daca6. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a6c91c67b0030b27e7008734fdef7595c6f0eef497b5948b5d9b7bacce2daca6
SHA3-384 hash: cea3c6742eb4903dd98aefdd6c334b2d6da164154d3a79d53b28a2c7e7476133c798457475183e56fcd6af3818c186d3
SHA1 hash: c491f891428c51da6fb1dadfdf7cc052418d3b58
MD5 hash: b18679a37c740ce6e14df3bea9a5946c
humanhash: minnesota-oranges-bakerloo-wisconsin
File name:B18679A37C740CE6E14DF3BEA9A5946C.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:3'823'104 bytes
First seen:2024-04-07 07:25:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 49152:JyxZLXOEx+OBBjnyLa2jTAUw6MBoHNUUlYJX+A7EJjZd/ngzkNidI57q52t1B6L:JySEFR70TAUwySU+JXXor/cW/Lt+
Threatray 203 similar samples on MalwareBazaar
TLSH T17C06F10EA5526E73C3943F3185E7001D93F0C6667922EF5B3A1FA5D5A8822B18B536F3
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://77.105.161.180/secure7Multi/temporaryJavascript0Base/7/EternalimageToprocessorcentral.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
288
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
dcrat
Create hunting rule
ID:
1
File name:
c66d3b14b2a23fe8dacb3f55bae138ed1bae4b55e1771acf63712e3d9b3d7227.exe
Verdict:
Malicious activity
Analysis date:
2024-04-07 04:38:31 UTC
Tags:
rat backdoor dcrat remote stealer
Link:
https://app.any.run/tasks/234bff27-aaaf-480a-87d2-d16a72556bed

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

Behaviour
Сreating synchronization primitives
Creating a file
Creating a file in the Windows subdirectories
Using the Windows Management Instrumentation requests
Launching a process
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Moving a file to the Program Files subdirectory
Replacing files
Creating a process from a recently created file
Sending an HTTP GET request
Forced system process termination
Loading a suspicious library
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Enabling autorun
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
net_reactor packed packed
Link:
https://www.filescan.io/uploads/66124a8b279698d249eba11e/reports/82bfda26-2e0c-4dd9-a13a-f0793b1e4f24/overview
Verdict:
Malicious
Labled as:
Trojan.MSIL.Basic.8
Link:
https://www.hybrid-analysis.com/sample/a6c91c67b0030b27e7008734fdef7595c6f0eef497b5948b5d9b7bacce2daca6
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/8a6bd187-65e8-4a85-80f3-4e092e410204
Result
Threat name:
DCRat, PureLog Stealer, zgRAT
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1421503
Signature
.NET source code contains method to dynamically call methods (often used by packers)
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 multiple autostart registry keys
Creates processes via WMI
Infects executable files (exe, dll, sys, html)
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: Execution from Suspicious Folder
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Yara detected PureLog Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1421503 Sample: mE6cY5Lf5f.exe Startdate: 07/04/2024 Architecture: WINDOWS Score: 100 70 Snort IDS alert for network traffic 2->70 72 Antivirus detection for URL or domain 2->72 74 Antivirus detection for dropped file 2->74 76 15 other signatures 2->76 7 mE6cY5Lf5f.exe 7 58 2->7         started        11 APcKCDvArZrsL.exe 14 93 2->11         started        14 APcKCDvArZrsL.exe 2->14         started        16 11 other processes 2->16 process3 dnsIp4 50 C:\Windows\Prefetch\...\APcKCDvArZrsL.exe, PE32 7->50 dropped 52 C:\Users\user\Desktop\wyghyDEo.log, PE32 7->52 dropped 54 C:\Users\user\Desktop\twuzcUzt.log, PE32 7->54 dropped 62 29 other malicious files 7->62 dropped 86 Creates an undocumented autostart registry key 7->86 88 Creates multiple autostart registry keys 7->88 90 Creates an autostart registry key pointing to binary in C:\Windows 7->90 96 2 other signatures 7->96 18 csc.exe 4 7->18         started        22 csc.exe 4 7->22         started        24 cmd.exe 7->24         started        26 5 other processes 7->26 66 77.105.161.180, 49711, 49712, 49715 ICOMF-ASRU Russian Federation 11->66 56 C:\Users\user\Desktop\wbozRACt.log, PE32 11->56 dropped 58 C:\Users\user\Desktop\vMGZhetv.log, PE32 11->58 dropped 60 C:\Users\user\Desktop\uYCRvRxx.log, PE32 11->60 dropped 64 22 other malicious files 11->64 dropped 92 Tries to harvest and steal browser information (history, passwords, etc) 11->92 94 Multi AV Scanner detection for dropped file 14->94 68 127.0.0.1 unknown unknown 16->68 file5 signatures6 process7 file8 46 C:\Program Files (x86)\...\msedge.exe, PE32 18->46 dropped 78 Uses schtasks.exe or at.exe to add and modify task schedules 18->78 80 Infects executable files (exe, dll, sys, html) 18->80 28 conhost.exe 18->28         started        30 cvtres.exe 1 18->30         started        48 C:\Windows\...\SecurityHealthSystray.exe, PE32 22->48 dropped 32 conhost.exe 22->32         started        34 cvtres.exe 22->34         started        36 schtasks.exe 22->36         started        40 11 other processes 22->40 82 Uses ping.exe to sleep 24->82 84 Uses ping.exe to check the status of other devices and networks 24->84 42 4 other processes 24->42 38 conhost.exe 26->38         started        44 5 other processes 26->44 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a6c91c67b0030b27e7008734fdef7595c6f0eef497b5948b5d9b7bacce2daca6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a6c91c67b0030b27e7008734fdef7595c6f0eef497b5948b5d9b7bacce2daca6/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2024-04-03 08:59:03 UTC
File Type:
PE (.Net Exe)
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u3eryz5qamfspzyaq42p333vsxdpb3xus62zjc25tn52ztrnvsta._file
Verdict:
malicious
Similar samples:
0266dc2bf6eb73b5ef4770bedecadbffb0c35cd3b17c9a97e39712d92f17d199
DCRat
846646dae2f70ac644cd3420d1d465593f654b3f827e84b2ef421e701b37a72e
DCRat
aed6efbcad60ad52492ceb3f0da88bd7d457a7531cc43a7808c630cf5166bdbb
DCRat
c66d3b14b2a23fe8dacb3f55bae138ed1bae4b55e1771acf63712e3d9b3d7227
DCRat
e434b8362b39f1202159b48a025eece729c54a2627c04fe927ece4566c2ca2b7
DCRat
fd013757b73bc051725a6cd214b5b5a4373ce97105404a7608226bb7e700fab5
DCRat
+ 193 additional samples on MalwareBazaar
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:zgrat persistence rat spyware stealer
Link:
https://tria.ge/reports/240407-h9hppsgc99/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
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/89a9f710-63c6-4885-bf59-df8d1f1571c4/
SH256 hash:
7a080d8bd178ec02c7f39f7f941479074c450c4fdd8e963c993d2fb5537c7708
MD5 hash:
16b480082780cc1d8c23fb05468f64e7
SHA1 hash:
6fddf86f9f0fbaa189f5cb79e44999a3f1ac2b26
Link:
https://www.unpac.me/results/89a9f710-63c6-4885-bf59-df8d1f1571c4/
SH256 hash:
a6c91c67b0030b27e7008734fdef7595c6f0eef497b5948b5d9b7bacce2daca6
MD5 hash:
b18679a37c740ce6e14df3bea9a5946c
SHA1 hash:
c491f891428c51da6fb1dadfdf7cc052418d3b58
Detections:
INDICATOR_EXE_Packed_DotNetReactor
Create hunting rule
Link:
https://www.unpac.me/results/89a9f710-63c6-4885-bf59-df8d1f1571c4/
Parent samples :
c66d3b14b2a23fe8dacb3f55bae138ed1bae4b55e1771acf63712e3d9b3d7227
a6c91c67b0030b27e7008734fdef7595c6f0eef497b5948b5d9b7bacce2daca6
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a6c91c67b003/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/a6c91c67b0030b27e7008734fdef7595c6f0eef497b5948b5d9b7bacce2daca6

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: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:pe_imphash
Create hunting rule
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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

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