MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71840b9aa4d1868c8a090d5b591fb9df218813aad842ea42472efe65c9d5aa02. 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 1 YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 71840b9aa4d1868c8a090d5b591fb9df218813aad842ea42472efe65c9d5aa02
SHA3-384 hash: 2579a9f20070639b442cb8c898dfa0b1f2578d9fbdc54ee8bac74945b4eccb27733219861acef579c6870fd28534cd55
SHA1 hash: 4646d66273aefe1cd6638b20dbd50a93d81eb18e
MD5 hash: e9589c076fc51d358fe5eece0b2381da
humanhash: bulldog-william-carpet-fish
File name:e9589c076fc51d358fe5eece0b2381da.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:1'415'168 bytes
First seen:2022-03-08 17:21:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2e5467cba76f44a088d39f78c5e807b6 (131 x DCRat, 113 x njrat, 80 x RedLineStealer)
ssdeep 24576:in/fJC6SvndwuaPOAyHVIfsXbZkVsZ8WCUGoFx+AC8YNnPe0a9I9zdjY0fxIFKrw:i/TSvd4POHHWfsXlTRGo/lCNtPg9kz2f
Threatray 136 similar samples on MalwareBazaar
TLSH T1D165331861B57856FD1589FA4F3964664FF98B007EDE0CEBA477EB02B43784C8E22960
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://89.108.102.163/HttpprocessdefaultWindowsgenerator.php

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://89.108.102.163/HttpprocessdefaultWindowsgenerator.php https://threatfox.abuse.ch/ioc/393051/

Intelligence

File Origin
# of uploads :
1
# of downloads :
174
Origin country :
n/a
Vendor Threat Intelligence
Detection:
EnigmaStub
Create hunting rule
Link:
https://www.capesandbox.com/analysis/248386/
Detection(s):
PUA.Win.Packer.EnigmaProtector-19
Create hunting rule

PUA.Win.Packer.EnigmaProtector-1
Create hunting rule

Win.Malware.Enigmaprotector-9757232-0
Create hunting rule

PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the Windows subdirectories
Using the Windows Management Instrumentation requests
Launching a process
Creating a file
Sending a custom TCP request
Creating a process from a recently created file
Creating a process with a hidden window
Sending an HTTP GET request
Searching for synchronization primitives
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62279aaf0cd58dbd926882d5/reports/0bd1a7df-b980-4d78-be8a-3850d1150326/overview
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/51d21a04-23f1-47f3-b381-edfbc255075c
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/952816
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates processes via WMI
Detected unpacking (changes PE section rights)
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
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: File Created with System Process Name
Tries to evade analysis by execution special instruction which cause usermode exception
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 585297 Sample: TDxrQ9Kaxv.exe Startdate: 08/03/2022 Architecture: WINDOWS Score: 100 40 store-images.s-microsoft.com 2->40 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for dropped file 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 13 other signatures 2->50 9 TDxrQ9Kaxv.exe 9 28 2->9         started        13 UsoClient.exe 3 2->13         started        15 FloZQuzJogrEHqpw.exe 15 2 2->15         started        18 7 other processes 2->18 signatures3 process4 dnsIp5 32 C:\Windows\SysWOW64\fltMC\RuntimeBroker.exe, PE32 9->32 dropped 34 C:\Windows\SysWOW64\dbnmpntw\dllhost.exe, PE32 9->34 dropped 36 C:\Windows\SysWOW64\aspnet_counters\dwm.exe, PE32 9->36 dropped 38 10 other malicious files 9->38 dropped 62 Detected unpacking (changes PE section rights) 9->62 64 Tries to evade analysis by execution special instruction which cause usermode exception 9->64 66 Creates processes via WMI 9->66 68 Drops PE files with benign system names 9->68 20 cmd.exe 1 9->20         started        70 Antivirus detection for dropped file 13->70 72 Multi AV Scanner detection for dropped file 13->72 74 Machine Learning detection for dropped file 13->74 42 89.108.102.163, 49771, 49782, 49785 AGAVA3RU Russian Federation 15->42 76 Hides threads from debuggers 15->76 file6 signatures7 process8 signatures9 52 Drops executables to the windows directory (C:\Windows) and starts them 20->52 23 RuntimeBroker.exe 20->23         started        26 w32tm.exe 20->26         started        28 conhost.exe 20->28         started        process10 signatures11 54 Antivirus detection for dropped file 23->54 56 Multi AV Scanner detection for dropped file 23->56 58 Detected unpacking (changes PE section rights) 23->58 60 3 other signatures 23->60 30 w32tm.exe 26->30         started        process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/71840b9aa4d1868c8a090d5b591fb9df218813aad842ea42472efe65c9d5aa02/
Threat name:
Win32.Trojan.Vimditator
Create hunting rule
Status:
Malicious
First seen:
2022-02-24 20:55:05 UTC
File Type:
PE (Exe)
AV detection:
29 of 41 (70.73%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ogcaxgve2gdizcqjbvnvsh5z34qyqe5k3bbouqshf37glsovviba._file
Verdict:
malicious
Similar samples:
5574e0b5e404aa5bad86dd9aca033eb35421ec30dd91a9777bd6b053514010d7
DCRat
5ed80f3e0c9d4c92b05864fafffd410becd10235c0cb34cd1ac46090dc83f293
DCRat
68f6d55f31e87cebb1b5c9ea96e9c770464f8d6a937dda00b5a7139f79240d7c
DCRat
7023f35807e56aaf88350536ca380ac137d810958d6307e29454bf5336021a78
DCRat
992a54c553bf5b53990d181c24b9ba44b93bc9f02f5a3d42dbf4d1e1f57ead5f
DCRat
d810072e7363c14184f61fee52b2968f7394ed84a7bb1ff52dba033b30ce17e0
DCRat
+ 126 additional samples on MalwareBazaar
Result
Malware family:
dcrat
Create hunting rule
Score:
  10/10
Tags:
family:dcrat infostealer persistence rat suricata
Link:
https://tria.ge/reports/220308-vw3tyacedp/
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
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
DcRat
Process spawned unexpected child process
suricata: ET MALWARE DCRAT Activity (GET)
Unpacked files
SH256 hash:
71840b9aa4d1868c8a090d5b591fb9df218813aad842ea42472efe65c9d5aa02
MD5 hash:
e9589c076fc51d358fe5eece0b2381da
SHA1 hash:
4646d66273aefe1cd6638b20dbd50a93d81eb18e
Link:
https://www.unpac.me/results/a229fc98-8bb5-4b35-af13-5c9c32b39226/
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/71840b9aa4d1868c8a090d5b591fb9df218813aad842ea42472efe65c9d5aa02

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:EnigmaStub
Create hunting rule
Author:@bartblaze
Description:Identifies Enigma packer stub.
Rule name:INDICATOR_SUSPICIOUS_EXE_Embedded_Gzip_B64Encoded_File
Create hunting rule
Author:ditekSHen
Description:Detects executables containing bas64 encoded gzip files
Rule name:MALWARE_Win_DCRat
Create hunting rule
Author:ditekSHen
Description:DCRat payload
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_smominru_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.smominru.
Rule name:XOREngine_Misc_XOR_Func
Create hunting rule
Author:smiller cc @florian @wesley idea on implementation with yara's built in XOR function
Description:Use with care, https://twitter.com/cyb3rops/status/1237042104406355968

File information

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

Web download

DCRat

Executable exe 71840b9aa4d1868c8a090d5b591fb9df218813aad842ea42472efe65c9d5aa02

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2084543/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/248386/

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