MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 39d8d782ab9d2c91b4816543515a5f3a366682a09f3edabe6e657e327d405699. 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: 18
| SHA256 hash: | 39d8d782ab9d2c91b4816543515a5f3a366682a09f3edabe6e657e327d405699 |
|---|---|
| SHA3-384 hash: | 39062af2189687fc5b62bf8d8048a6790dac684849806552f4114dfe752b6648c2cc5e0043e563cfc4e202fd1381b0af |
| SHA1 hash: | 8d96a199e4a12e598cf95356cd57f18e027ed2dc |
| MD5 hash: | e6eab638b2dcb040f83ccfca44a5f3f3 |
| humanhash: | enemy-louisiana-quiet-quebec |
| File name: | 39d8d782ab9d2c91b4816543515a5f3a366682a09f3edabe6e657e327d405699 |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 415'232 bytes |
| First seen: | 2023-09-06 13:08:18 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 6144:4HtW6u8w6F4O9M91IsvviHbhgvrZEFnIQycKR8oCYn:cfPFOHi1gzmFnGcM8oCYn |
| Threatray | 517 similar samples on MalwareBazaar |
| TLSH | T1B6948D106BE4972FD6EE037AF0710D2247B2EC667213F76B4A5C51A9AC533868F416E3 |
| TrID | 53.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 12.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 9.5% (.SCR) Windows screen saver (13097/50/3) 7.6% (.EXE) Win64 Executable (generic) (10523/12/4) 4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) |
| Reporter |  adrian__luca |
| Tags: | exe QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
298
Origin country :
HUVendor Threat Intelligence
Malware family:
quasar
ID:
1
File name:
39d8d782ab9d2c91b4816543515a5f3a366682a09f3edabe6e657e327d405699
Verdict:
Malicious activity
Analysis date:
2023-09-06 13:12:58 UTC
Tags:
evasion quasar
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm control downeks fingerprint keylogger lolbin packed quasar quasarrat rat replace schtasks vermin xrat
Verdict:
Malicious
Labled as:
IL:Trojan.MSILMamut
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.
Malware family:
Quasar RAT
Verdict:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Sigma detected: Quasar
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Detection:
quasar
Threat name:
ByteCode-MSIL.Trojan.Quasar
Status:
Malicious
First seen:
2023-08-27 00:56:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
29 of 38 (76.32%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 507 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:office04 spyware trojan
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
max-cleaner.at.ply.gg:19784
Unpacked files
SH256 hash:
39d8d782ab9d2c91b4816543515a5f3a366682a09f3edabe6e657e327d405699
MD5 hash:
e6eab638b2dcb040f83ccfca44a5f3f3
SHA1 hash:
8d96a199e4a12e598cf95356cd57f18e027ed2dc
Detections:
QuasarRAT
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
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: | CN_disclosed_20180208_KeyLogger_1 |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects malware from disclosed CN malware set |
| Reference: | https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details |
| Rule name: | CN_disclosed_20180208_KeyLogger_1_RID3227 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malware from disclosed CN malware set |
| Reference: | https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows executables referencing non-Windows User-Agents |
| Rule name: | malware_Quasar_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect QuasarRAT in memory |
| Rule name: | MALWARE_Win_QuasarRAT |
|---|---|
| Author: | ditekSHen |
| Description: | QuasarRAT payload |
| 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: | Multifamily_RAT_Detection |
|---|---|
| Author: | Lucas Acha (http://www.lukeacha.com) |
| Description: | Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Quasar_RAT_1 |
|---|---|
| Author: | @SOCRadar |
| Description: | Detects Quasar RAT |
| Rule name: | Quasar_RAT_1 |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects Quasar RAT |
| Reference: | https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf |
| Rule name: | Quasar_RAT_1_RID2B54 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Quasar RAT |
| Reference: | https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf |
| Rule name: | Quasar_RAT_2 |
|---|---|
| Description: | Detects Quasar RAT |
| Rule name: | Quasar_RAT_2 |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects Quasar RAT |
| Reference: | https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf |
| Rule name: | Quasar_RAT_2_RID2B55 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Quasar RAT |
| Reference: | https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Vermin_Keylogger_Jan18_1 |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects Vermin Keylogger |
| Reference: | https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/ |
| Rule name: | Windows_Trojan_Quasarrat_e52df647 |
|---|---|
| Author: | Elastic Security |
| Rule name: | xRAT_1 |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects Patchwork malware |
| Reference: | https://goo.gl/Pg3P4W |
| Rule name: | xRAT_1_RID2900 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Patchwork malware |
| Reference: | https://goo.gl/Pg3P4W |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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