MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 197ebb16ffd123604a2f960d4bd32d7e2756253ac728a218b18ef42857fe9d95. 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: 14
| SHA256 hash: | 197ebb16ffd123604a2f960d4bd32d7e2756253ac728a218b18ef42857fe9d95 |
|---|---|
| SHA3-384 hash: | d2833d61901d877c359839dab231db4080d650e4526a88014c573ec5d1fb4ba61d92a1169437d074019bf58430b6bdb7 |
| SHA1 hash: | f34ab554417a440a23dc101860fc0599d8d1a3e7 |
| MD5 hash: | 05dc627c5625b096428e3cfc0d548a96 |
| humanhash: | oregon-double-eight-fanta |
| File name: | 05dc627c5625b096428e3cfc0d548a96.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 4'637'696 bytes |
| First seen: | 2025-04-15 09:14:28 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger) |
| ssdeep | 98304:Vx9hJQ8D0nq/Tv0Mtn5PNE3webRWETLMVZHrTXGBVBb:Vx7nD+OTvZt512RNLoHriB7 |
| Threatray | 1'204 similar samples on MalwareBazaar |
| TLSH | T13C26230C7E5F878DD95927B1F20706B8C351FA47AAB2EB5B6EF8104879063F3501279A |
| 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 |  abuse_ch |
| Tags: | exe QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
450
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
05dc627c5625b096428e3cfc0d548a96.exe
Verdict:
No threats detected
Analysis date:
2025-04-15 09:15:39 UTC
Tags:
evasion
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
91.7%
Tags:
emotet quasar
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Searching for the window
Creating a window
Searching for synchronization primitives
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Connection attempt to an infection source
Sending a TCP request to an infection source
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
net_reactor obfuscated obfuscated packed packed packer_detected reconnaissance
Verdict:
Malicious
Labled as:
RiskWare[Obfuscator]/MSIL.Reactor
Verdict:
Malicious
Result
Threat name:
PureLog Stealer, Quasar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Creates a thread in another existing process (thread injection)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects code into the Windows Explorer (explorer.exe)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Yara detected PureLog Stealer
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Donut
Status:
Malicious
First seen:
2025-04-11 12:10:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
28 of 38 (73.68%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
donut_injector
quasarrat
Similar samples:
+ 1'194 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:ۇ\�� spyware trojan
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
.NET Reactor proctector
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
�� ��3�wa<�����۪�*)���Y�Ð�
Verdict:
Malicious
Tags:
Win.Packed.Zusy-10023527-0
YARA:
n/a
Unpacked files
SH256 hash:
197ebb16ffd123604a2f960d4bd32d7e2756253ac728a218b18ef42857fe9d95
MD5 hash:
05dc627c5625b096428e3cfc0d548a96
SHA1 hash:
f34ab554417a440a23dc101860fc0599d8d1a3e7
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
INDICATOR_EXE_Packed_DotNetReactor
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | DotNet_Reactor |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on. |
| Rule name: | INDICATOR_EXE_Packed_DotNetReactor |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with unregistered version of .NET Reactor |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | PureCrypter |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies PureCrypter, .NET loader and obfuscator. |
| Reference: | https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
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