MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cbf539d4eea26320e66428cddd0a2dbfbdf4861670e20ef9b074a63f6e142783. 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: 9
| SHA256 hash: | cbf539d4eea26320e66428cddd0a2dbfbdf4861670e20ef9b074a63f6e142783 |
|---|---|
| SHA3-384 hash: | e1c8191a45f6276a28418daae319484111bc5c5f14d90e4af75eb6ff85d32995d898924111c0de94bb64f21eb63aae20 |
| SHA1 hash: | 75563902edbec9380ff9f0d4abd5a3f31d39156f |
| MD5 hash: | b86fc48fed9141b3f05409fdd5251293 |
| humanhash: | tennis-carpet-romeo-march |
| File name: | b86fc48f_by_Libranalysis |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 1'026'560 bytes |
| First seen: | 2021-05-23 11:01:17 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:RksFsjhrIq134lbmMP0y+ssK8UlwetBkff+ruMZZkeGz+h00sAhcKLujJEb9Ox62:RFdqQtYfbMgihLaiCKObP |
| Threatray | 4'894 similar samples on MalwareBazaar |
| TLSH | 09256B343AFA501AB173EFAA5AE474D6DA6FB7333B07A45D1091038A0723A41DDD193E |
| Reporter |  Libranalysis |
| Tags: | QuasarRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
153
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b86fc48f_by_Libranalysis
Verdict:
Suspicious activity
Analysis date:
2021-05-23 11:05:14 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Creating a window
Creating a file in the %AppData% subdirectories
Setting a keyboard event handler
Sending a UDP request
Launching a process
Reading critical registry keys
Using the Windows Management Instrumentation requests
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
StormKitty
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large strings
Antivirus detection for dropped file
Detected unpacking (creates a PE file in dynamic memory)
Installs a global keyboard hook
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Yara detected StormKitty Stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Infostealer.Stelega
Status:
Malicious
First seen:
2021-05-23 09:37:30 UTC
AV detection:
12 of 29 (41.38%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 4'884 additional samples on MalwareBazaar
Result
Malware family:
stormkitty
Score:
10/10
Tags:
family:stormkitty spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads local data of messenger clients
Reads user/profile data of web browsers
Executes dropped EXE
StormKitty
StormKitty Payload
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: | Email_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Email in files like avemaria |
| Rule name: | INDICATOR_SUSPICIOUS_Binary_References_Browsers |
|---|---|
| Author: | ditekSHen |
| Description: | Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_Referenfces_Messaging_Clients |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables referencing many email and collaboration clients. Observed in information stealers |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | MALWARE_Win_StormKitty |
|---|---|
| Author: | ditekSHen |
| Description: | Detects StormKitty infostealer |
| 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: | Select_from_enumeration |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Stealer_word_in_memory |
|---|---|
| Author: | James_inthe_box |
| Description: | The actual word stealer in memory |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
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0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection
1) [C0027.001] Cryptography Micro-objective::AES::Encrypt Data