MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 965a8d621907f2a2c04e8ca84801f448c68e133491b26d5336c851059db5b3ec. 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
| SHA256 hash: | 965a8d621907f2a2c04e8ca84801f448c68e133491b26d5336c851059db5b3ec |
|---|---|
| SHA3-384 hash: | e9d5acaf9b6cd19cae568e5b14c50fb62719130f03787677278c61276fbf1068a9eafd6b8f8f23798b9fbd761969304b |
| SHA1 hash: | 099181e3a66fb56762b5e53a78813e59c20ef385 |
| MD5 hash: | 64b3320986534b74108fd797d76e68bd |
| humanhash: | july-hotel-king-texas |
| File name: | 965A8D621907F2A2C04E8CA84801F448C68E133491B26.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 514'048 bytes |
| First seen: | 2021-12-26 19:26:23 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:VTEgdc0YWX7IxUpGREWCD1d7cwGZ8hMgisUzIcERlb8F9sXiKEy+ftcTR36:VTEgdfY3xU7EwGaIJsBqeXrX+Fcd6 |
| Threatray | 183 similar samples on MalwareBazaar |
| TLSH | T195B47B4063F8862BE17F5779E97104205BF9F42BB267EB8F5540A2F92A667038E40773 |
| Reporter |  abuse_ch |
| Tags: | exe QuasarRAT RAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 14.32.99.105:443 | https://threatfox.abuse.ch/ioc/287858/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
325
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
965A8D621907F2A2C04E8CA84801F448C68E133491B26.exe
Verdict:
Suspicious activity
Analysis date:
2021-12-26 19:30:53 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarStealer
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Enabling the 'hidden' option for analyzed file
Creating a process from a recently created file
Creating a file
DNS request
Sending a custom TCP request
Setting a keyboard event handler
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm greyware keylogger obfuscated packed quasarrat rat stealer
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.spyw.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Schedule system process
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
System process connects to network (likely due to code injection or exploit)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Detection:
quasar
Threat name:
ByteCode-MSIL.Trojan.Quasar
Status:
Malicious
First seen:
2021-12-26 01:43:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
26 of 28 (92.86%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 173 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:v-38.53 spyware trojan
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Looks up external IP address via web service
Executes dropped EXE
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
me.hansang.me:443
Unpacked files
SH256 hash:
965a8d621907f2a2c04e8ca84801f448c68e133491b26d5336c851059db5b3ec
MD5 hash:
64b3320986534b74108fd797d76e68bd
SHA1 hash:
099181e3a66fb56762b5e53a78813e59c20ef385
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: | INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows executables referencing non-Windows User-Agents |
| Rule name: | INDICATOR_SUSPICIOUS_GENInfoStealer |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables containing common artifcats observed in infostealers |
| Rule name: | MALWARE_Win_QuasarStealer |
|---|---|
| Author: | ditekshen |
| Description: | Detects Quasar infostealer |
| Rule name: | MAL_QuasarRAT_May19_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects QuasarRAT malware |
| Reference: | https://blog.ensilo.com/uncovering-new-activity-by-apt10 |
| 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: | 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.
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