MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dcbb3d569265aa68fb9e55d9023141754f2f89c57609621a3d74278cc8547feb. 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


QuasarRAT


Vendor detections: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dcbb3d569265aa68fb9e55d9023141754f2f89c57609621a3d74278cc8547feb
SHA3-384 hash: 2a878ba2985960475529d6a03bdf38768479fb2e910d6fb0523ab2dae50e28e55aaa30dc13e226e78dec99f37da03eda
SHA1 hash: e0af3ac88b27ef2dc40bb9845ef3c1c59d913e67
MD5 hash: bcfed92d8aec2b33ff1a8a69f962a567
humanhash: echo-video-comet-vegan
File name:bcfed92d8aec2b33ff1a8a69f962a567.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'323'008 bytes
First seen:2023-02-01 19:23:19 UTC
Last seen:2023-02-01 20:38:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:hk7m1B+BQyBlYKP00ZywxPCW7liG6zGky8ovgQVmLG8o7HxdcayLsWInd+uBHQmL:hXGYK80AjuI7
Threatray 1'168 similar samples on MalwareBazaar
TLSH T12C55AF710B96EDCAF59B1E5890093D109D191C477A68E394FCC832AFA1F9A74F588FB0
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 31f0c0b2b2c0f031 (2 x Formbook, 1 x QuasarRAT, 1 x AgentTesla)
Reporter abuse_ch
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
bcfed92d8aec2b33ff1a8a69f962a567.exe
Verdict:
Malicious activity
Analysis date:
2023-02-01 19:25:22 UTC
Tags:
evasion trojan quasar
Link:
https://app.any.run/tasks/15b73e84-3a4b-466a-9e48-a026e6c12996

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/359236/
Detection(s):
SecuriteInfo.com.Variant.Barys.875.24293.17443.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Creating a file in the %AppData% subdirectories
Enabling autorun
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/63dabc542d4f6d560e23f6ca/reports/10f8b951-a611-45ed-82fd-c7c85fab592d/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:
Unknown
Link:
https://analyze.intezer.com/analyses/4d72b566-2e72-4132-9cfe-7b510a713a9c
Result
Threat name:
Quasar, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1163589
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Snort IDS alert for network traffic
Uses ipconfig to lookup or modify the Windows network settings
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected Quasar RAT
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 796358 Sample: uA17g37mtt.exe Startdate: 01/02/2023 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for dropped file 2->47 49 12 other signatures 2->49 7 uA17g37mtt.exe 1 7 2->7         started        process3 file4 31 C:\Users\user\...\TeamViewer_Service.exe, PE32 7->31 dropped 33 C:\...\TeamViewer_Service.exe:Zone.Identifier, ASCII 7->33 dropped 35 C:\Users\user\AppData\...\uA17g37mtt.exe.log, ASCII 7->35 dropped 51 Creates an undocumented autostart registry key 7->51 53 Encrypted powershell cmdline option found 7->53 55 Adds a directory exclusion to Windows Defender 7->55 11 InstallUtil.exe 15 4 7->11         started        15 cmd.exe 1 7->15         started        17 cmd.exe 1 7->17         started        19 powershell.exe 16 7->19         started        signatures5 process6 dnsIp7 37 ip-api.com 208.95.112.1, 49745, 80 TUT-ASUS United States 11->37 39 previous-page.mooo.com 83.11.235.247, 3690, 49755 TPNETPL Poland 11->39 41 192.168.2.1 unknown unknown 11->41 57 May check the online IP address of the machine 11->57 59 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->59 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->61 63 Installs a global keyboard hook 11->63 65 Uses ipconfig to lookup or modify the Windows network settings 15->65 21 conhost.exe 15->21         started        23 ipconfig.exe 1 15->23         started        25 conhost.exe 17->25         started        27 ipconfig.exe 1 17->27         started        29 conhost.exe 19->29         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dcbb3d569265aa68fb9e55d9023141754f2f89c57609621a3d74278cc8547feb/
Threat name:
ByteCode-MSIL.Trojan.RedLine
Create hunting rule
Status:
Malicious
First seen:
2023-02-01 10:22:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
23 of 39 (58.97%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3s5t2vusmwvgr646kxmqemkbovhs7cofoyewegr5oqtyzscup7vq._file
Verdict:
malicious
Similar samples:
01a2c4a3dd82f6e3fc651261af69dc942692b1d0df9ab07136eddcdb78bd367e
QuasarRAT
57d232a7ac403bd7e30412198520fc951f9e102337fe195efdd10954970b0432
QuasarRAT
724ff8546f194ffa5aadb446a00a6476aceedda46114bb9ad8f8ad9f32e27493
QuasarRAT
a44e7420e441548adddf0d79cc51e46211ebfa7dde08e5c95211eb3f95d0e570
QuasarRAT
b78e68fd36980a2fa7c1de03af87095dc637985959414c9684b11c24d37e97b3
QuasarRAT
d6fd21b13e5ffc0c0e56118f2154ede679b0100afdbf093a660d5dc7a427f34b
QuasarRAT
f1bfade8e5d5c7282a587db55c9bf28b64909259fa192305c63a0b7a9dba94bb
QuasarRAT
+ 1'158 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:>170123< persistence spyware trojan
Link:
https://tria.ge/reports/230201-x4czladd4s/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Modifies WinLogon for persistence
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
previous-page.mooo.com:3690
Unpacked files
SH256 hash:
dcbb3d569265aa68fb9e55d9023141754f2f89c57609621a3d74278cc8547feb
MD5 hash:
bcfed92d8aec2b33ff1a8a69f962a567
SHA1 hash:
e0af3ac88b27ef2dc40bb9845ef3c1c59d913e67
Link:
https://www.unpac.me/results/15865848-cc6c-48ac-95d1-26b47a112de2/
Malware family:
xRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dcbb3d569265/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/dcbb3d569265aa68fb9e55d9023141754f2f89c57609621a3d74278cc8547feb

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Create hunting rule
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.

Web download

QuasarRAT

Executable exe dcbb3d569265aa68fb9e55d9023141754f2f89c57609621a3d74278cc8547feb

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/359236/
  
URLhaus
https://urlhaus.abuse.ch/url/2525655/
  
Delivery method
Distributed via web download

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