MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 43315abb9c8be9a39782bd8694a7ea9f16a867500dc804454d04b8bf2c15c51e. 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: 16
| SHA256 hash: | 43315abb9c8be9a39782bd8694a7ea9f16a867500dc804454d04b8bf2c15c51e |
|---|---|
| SHA3-384 hash: | 6179317abb46491712e5be285aa73fe952f8c5a84742e6b45019b89c7d3c620550405bd6db4daf9abf16f4d537f1d099 |
| SHA1 hash: | 7f87a80513e13efd45175e8f2511c2cd17ff51e8 |
| MD5 hash: | 12ebf922aa80d13f8887e4c8c5e7be83 |
| humanhash: | solar-item-august-paris |
| File name: | Quasar.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 1'251'328 bytes |
| First seen: | 2024-09-23 07:47:57 UTC |
| Last seen: | 2025-10-06 10:55:12 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (49'131 x AgentTesla, 20'159 x Formbook, 12'362 x SnakeKeylogger) |
| ssdeep | 12288:IwPs012cBBBYiL9l/bFfpBBBBBBBBBBBBcA:jBBBYiLvzFfpBBBBBBBBBBBBcA |
| TLSH | T10245A5BA235D7099E66576F404526090E1F36D3289BB61292C7F38AC49B1B37CC43B9F |
| 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) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| File icon (PE): |  |
| dhash icon | 0f1755717070330f (3 x QuasarRAT, 2 x AsyncRAT) |
| Reporter |  Apexcomment |
| Tags: | BlotchyQuasar exe QuasarRAT |
Intelligence
File Origin
# of uploads :
4
# of downloads :
561
Origin country :
FRVendor Threat Intelligence
Malware family:
quasar
ID:
1
File name:
Quasar.v1.4.1.zip
Verdict:
Malicious activity
Analysis date:
2023-08-19 20:32:32 UTC
Tags:
quasar
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
Generic Msil Monitor Dropper Quasar
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
10/10
Confidence:
89%
Tags:
explorer fingerprint fingerprint keylogger lolbin quasar quasarrat rat remote
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Malware family:
Mimikatz
Verdict:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj
Score:
72 / 100
Signature
.NET source code contains very large array initializations
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Score:
65%
Verdict:
Susipicious
File Type:
PE
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Status:
Malicious
First seen:
2023-03-12 19:55:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
122
AV detection:
30 of 38 (78.95%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
quasarrat
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar spyware trojan
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Quasar RAT
Quasar payload
Verdict:
Malicious
Tags:
rat quasar_rat
YARA:
MAL_QuasarRAT_May19_1
Unpacked files
SH256 hash:
43315abb9c8be9a39782bd8694a7ea9f16a867500dc804454d04b8bf2c15c51e
MD5 hash:
12ebf922aa80d13f8887e4c8c5e7be83
SHA1 hash:
7f87a80513e13efd45175e8f2511c2cd17ff51e8
Detections:
MAL_QuasarRAT_May19_1
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Quasar
Score:
0.90
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: | Detect_APT29_WINELOADER_Backdoor |
|---|---|
| Author: | daniyyell |
| Description: | Detects APT29's WINELOADER backdoor variant used in phishing campaigns, this rule also detect bad pdf,shtml,htm and vbs or maybe more depends |
| Reference: | https://cloud.google.com/blog/topics/threat-intelligence/apt29-wineloader-german-political-parties |
| Rule name: | Detect_PowerShell_Obfuscation |
|---|---|
| Author: | daniyyell |
| Description: | Detects obfuscated PowerShell commands commonly used in malicious scripts. |
| Rule name: | MAL_QuasarRAT_May19_1 |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects QuasarRAT malware |
| Reference: | https://blog.ensilo.com/uncovering-new-activity-by-apt10 |
| Rule name: | MAL_QuasarRAT_May19_1 |
|---|---|
| Description: | Detects QuasarRAT malware |
| Rule name: | MAL_QuasarRAT_May19_1_RID2E1E |
|---|---|
| Author: | Florian Roth |
| Description: | Detects QuasarRAT malware |
| Reference: | https://blog.ensilo.com/uncovering-new-activity-by-apt10 |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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 (GUARD_CF) | high |
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