MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4f5eb87739916022c23a6291aaac32e86cef1d92cd9bcf67ec0ed357f1672ca1. 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: 7
| SHA256 hash: | 4f5eb87739916022c23a6291aaac32e86cef1d92cd9bcf67ec0ed357f1672ca1 |
|---|---|
| SHA3-384 hash: | f4d10b4c3a942df54784b014e9990191576c48c246ea7ad75409fb084605160802f9819eb9d0153bdc29e63a1c88a7b0 |
| SHA1 hash: | 3c6fe7b6885dadd5820710082b5e07f0f0c31a8f |
| MD5 hash: | 1cd60e5192988ae5841a861ef8c45a61 |
| humanhash: | don-sweet-west-louisiana |
| File name: | 1cd60e5192988ae5841a861ef8c45a61.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 658'944 bytes |
| First seen: | 2021-07-14 15:25:23 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:+F99ykKFS0ts9luPb4Fk5SfYYPf6M5hk/y2V:+JykotsPuT4XLfZjc |
| Threatray | 768 similar samples on MalwareBazaar |
| TLSH | T178E407027F44DA12F04D123BD19F15684BB19C81EDE6E32F7DA93A6D28323A67C1D8D9 |
| Reporter |  abuse_ch |
| Tags: | exe QuasarRAT RAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
stellacy.exe
Verdict:
Malicious activity
Analysis date:
2021-07-14 04:47:23 UTC
Tags:
evasion trojan stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
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:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Creates autorun.inf (USB autostart)
Deletes shadow drive data (may be related to ransomware)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
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 submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Quasar
Status:
Malicious
First seen:
2021-07-14 15:26:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
24 of 29 (82.76%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
unknown
Similar samples:
+ 758 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
6/10
Tags:
persistence
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops autorun.inf file
Adds Run key to start application
Looks up external IP address via web service
Unpacked files
SH256 hash:
4f5eb87739916022c23a6291aaac32e86cef1d92cd9bcf67ec0ed357f1672ca1
MD5 hash:
1cd60e5192988ae5841a861ef8c45a61
SHA1 hash:
3c6fe7b6885dadd5820710082b5e07f0f0c31a8f
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: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | pe_imphash |
|---|
| Rule name: | Quasar_RAT_1 |
|---|---|
| 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 |
|---|---|
| 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 |
| Description: | Detects Vermin Keylogger |
| Reference: | https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/ |
| Rule name: | xRAT_1 |
|---|---|
| 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.
Web download
Delivery method
Distributed via web download
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