MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ddf63c058e7e5d3a827e4f779aaeee7cdf915bab27d725188ab8c684792a8c21. 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: 15


Intelligence 15 IOCs YARA 10 File information Comments

SHA256 hash: ddf63c058e7e5d3a827e4f779aaeee7cdf915bab27d725188ab8c684792a8c21
SHA3-384 hash: cfd2b2dfe1efeb801e936473eaf0e2f6a9fe2f89fc084412d51db3fcbb838883f68429616b3f70b264949eb846474003
SHA1 hash: 32a83ab2e21d69199d92026f336ffabb5446beac
MD5 hash: e4a5ff5ad57ae6b0d8e7a6be5e601608
humanhash: maryland-illinois-kitten-missouri
File name:Zahlungsnachweis.exe
Download: download sample
Signature QuasarRAT
File size:3'463'680 bytes
First seen:2026-01-26 16:58:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 49152:ZBUGHWOyMrMrTaeFHmnj94uGCiziwZNA9d8P0udhrhM9PVrAngma/2y9EV:ZqG3trM3aKyjWughA9d8XdNhKNsgmW2T
Threatray 395 similar samples on MalwareBazaar
TLSH T1D2F523CE6AC14E21C526BE38816018648233EE693FD2F755FD98BCB336B3BE56850457
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter threatcat_ch
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
125
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Zahlungsnachweis.exe
Verdict:
No threats detected
Analysis date:
2026-01-26 16:59:28 UTC
Tags:
httpdebugger tool yano

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
autorun packed sage remo
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 crypt dotfuscator installer-heuristic obfuscated obfuscated packed reconnaissance smartassembly soft-404 strictor vbnet yano
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-26T12:16:00Z UTC
Last seen:
2026-01-28T07:09:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Tasker.cust PDM:Trojan.Win32.Generic HEUR:Trojan-Spy.MSIL.Quasar.gen
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Unusual module load detection (module proxying)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1857752 Sample: Zahlungsnachweis.exe Startdate: 26/01/2026 Architecture: WINDOWS Score: 100 47 ortyfivev.crabdance.com 2->47 49 lowbilding.ydns.eu 2->49 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus / Scanner detection for submitted sample 2->59 61 6 other signatures 2->61 9 Zahlungsnachweis.exe 1 2->9         started        13 clientn.exe 1 2->13         started        signatures3 process4 file5 43 C:\Users\user\...\Zahlungsnachweis.exe.log, ASCII 9->43 dropped 63 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->63 65 Uses schtasks.exe or at.exe to add and modify task schedules 9->65 67 Injects a PE file into a foreign processes 9->67 15 Zahlungsnachweis.exe 4 9->15         started        19 Zahlungsnachweis.exe 2 9->19         started        21 Zahlungsnachweis.exe 9->21         started        23 clientn.exe 2 13->23         started        26 clientn.exe 2 13->26         started        28 clientn.exe 13->28         started        signatures6 process7 dnsIp8 45 C:\Users\user\AppData\Roaming\...\clientn.exe, PE32 15->45 dropped 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->53 30 clientn.exe 15->30         started        33 schtasks.exe 1 15->33         started        35 WerFault.exe 2 21->35         started        51 lowbilding.ydns.eu 178.16.54.156, 4787, 4788, 49694 DUSNET-ASDE Germany 23->51 37 schtasks.exe 23->37         started        file9 signatures10 process11 signatures12 69 Antivirus detection for dropped file 30->69 71 Unusual module load detection (module proxying) 30->71 39 conhost.exe 33->39         started        41 conhost.exe 37->41         started        process13
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Strictor
Status:
Malicious
First seen:
2026-01-26 17:15:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
29 of 37 (78.38%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:office10 discovery execution persistence spyware trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
lowbilding.ydns.eu:4788
ortyfivev.crabdance.com:4787
Unpacked files
SH256 hash:
ddf63c058e7e5d3a827e4f779aaeee7cdf915bab27d725188ab8c684792a8c21
MD5 hash:
e4a5ff5ad57ae6b0d8e7a6be5e601608
SHA1 hash:
32a83ab2e21d69199d92026f336ffabb5446beac
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dsc
Author:Aaron DeVera
Description:Discord domains
Rule name:INDICATOR_EXE_Packed_Dotfuscator
Author:ditekSHen
Description:Detects executables packed with Dotfuscator
Rule name:INDICATOR_EXE_Packed_Goliath
Author:ditekSHen
Description:Detects executables packed with Goliath
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


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

Malspam

QuasarRAT

Executable exe ddf63c058e7e5d3a827e4f779aaeee7cdf915bab27d725188ab8c684792a8c21

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments