MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1b12a22d5d562b59030df4697c4157a23766d0b34f9bd17a0ca7374e5a53e28c. 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: 8
| SHA256 hash: | 1b12a22d5d562b59030df4697c4157a23766d0b34f9bd17a0ca7374e5a53e28c |
|---|---|
| SHA3-384 hash: | 519291a50660589d41e39f7f829341ebc909ece4323620c01c3e19a3387a2de1fba3b00f8af5940c34144717b05b4540 |
| SHA1 hash: | 373a2d73c34c905b2a52257ed5d432f82e412fd7 |
| MD5 hash: | ac46ae63e68b470fc8fc80f6a74e7964 |
| humanhash: | zulu-hawaii-fourteen-quebec |
| File name: | FacebookSecurityUpdate.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 577'024 bytes |
| First seen: | 2021-04-24 15:31:33 UTC |
| Last seen: | 2021-04-24 16:42:39 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:rLp9s3sp/N349Qptn+drldBIAxHA821QkxNBP6sEJxzenaWMRy:Jusdp9+XI+AZxNBCsOxzenaWMRy |
| Threatray | 186 similar samples on MalwareBazaar |
| TLSH | FAC4E0221E1DEDCDF23509B1702ACA6314E6ACD99A53801EDC67FC9994F774CBA03876 |
| Reporter |  ActorExpose |
| Tags: | QuasarRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
279
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Enabling the 'hidden' option for files in the %temp% directory
DNS request
Sending a UDP request
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Creating a file in the Windows subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Setting a keyboard event handler
Creating a file in the %AppData% subdirectories
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices by creating the autorun.inf autorun file
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.
Result
Threat name:
Quasar
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
.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
Connects to many ports of the same IP (likely port scanning)
Contains functionality to disable the Task Manager (.Net Source)
Creates autorun.inf (USB autostart)
Deletes shadow drive data (may be related to ransomware)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
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)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
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:
2021-04-23 23:31:08 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 176 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Unpacked files
SH256 hash:
d91c968a77c771a29885ef6a6740846f8434e6d76c97fbaf520b782a45b479f3
MD5 hash:
269e261fdbd4a955cb4591a39f3e08f4
SHA1 hash:
2d53c0730b8acb96b1ed1b90b2dfb75bd6056e64
Detections:
win_blackshades_w0
SH256 hash:
1b12a22d5d562b59030df4697c4157a23766d0b34f9bd17a0ca7374e5a53e28c
MD5 hash:
ac46ae63e68b470fc8fc80f6a74e7964
SHA1 hash:
373a2d73c34c905b2a52257ed5d432f82e412fd7
Please note that we are no longer able to provide a coverage score for Virus Total.
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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