MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3fada003d43df7ab5b4f7d41a1b90646797bb41ecb4ca1c3afb37baaba10264. 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



AsyncRAT


Vendor detections: 10


Intelligence 10 IOCs 1 YARA 5 File information Comments

SHA256 hash: f3fada003d43df7ab5b4f7d41a1b90646797bb41ecb4ca1c3afb37baaba10264
SHA3-384 hash: d52cafb1e81bb3f2aefaad03bbdc5121efe783cb6d0a3247825612c825420d8452751b0c862ab5ff670323d48fde28bd
SHA1 hash: 80c76bd783ef25062ac252f1b4422bc5f9dff909
MD5 hash: fbdc41a2c1059fc99b592ef844ee9311
humanhash: arizona-sweet-mars-cardinal
File name:FBDC41A2C1059FC99B592EF844EE9311.exe
Download: download sample
Signature AsyncRAT
File size:1'268'224 bytes
First seen:2021-04-08 16:45:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2e5467cba76f44a088d39f78c5e807b6 (131 x DCRat, 112 x njrat, 79 x RedLineStealer)
ssdeep 24576:Hhy6Po9B0hxc69NGf9fbBh6DhMthwnxV19/f/xy057Mv9afr:HhuwxcaM9j6d8QxJxy0
Threatray 40 similar samples on MalwareBazaar
TLSH 09453351C5854F62CD169FBDF26E3EF08AEA70AD5540F46E61984CAC022CD6CADE50FC
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
176.41.232.160:1111

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
176.41.232.160:1111 https://threatfox.abuse.ch/ioc/7440/

Intelligence


File Origin
# of uploads :
1
# of downloads :
228
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
FBDC41A2C1059FC99B592EF844EE9311.exe
Verdict:
Malicious activity
Analysis date:
2021-04-08 17:02:18 UTC
Tags:
trojan rat asyncrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Sending a UDP request
Launching a process
Creating a process from a recently created file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun by creating a 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:
AsyncRAT
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to hide a thread from the debugger
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 384216 Sample: oRIYd8v68R.exe Startdate: 08/04/2021 Architecture: WINDOWS Score: 100 35 karan1.duckdns.org 2->35 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Multi AV Scanner detection for domain / URL 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 7 other signatures 2->51 8 oRIYd8v68R.exe 7 2->8         started        12 a.exe 3 2->12         started        signatures3 process4 file5 31 C:\Users\user\AppData\Roaming\a.exe, PE32 8->31 dropped 33 C:\Users\user\AppData\...\oRIYd8v68R.exe.log, ASCII 8->33 dropped 55 Detected unpacking (changes PE section rights) 8->55 57 Detected unpacking (overwrites its own PE header) 8->57 59 Hides threads from debuggers 8->59 14 cmd.exe 1 8->14         started        16 cmd.exe 1 8->16         started        61 Antivirus detection for dropped file 12->61 63 Multi AV Scanner detection for dropped file 12->63 65 Machine Learning detection for dropped file 12->65 67 Contains functionality to hide a thread from the debugger 12->67 signatures6 process7 signatures8 19 a.exe 2 14->19         started        23 conhost.exe 14->23         started        25 timeout.exe 1 14->25         started        43 Uses schtasks.exe or at.exe to add and modify task schedules 16->43 27 conhost.exe 16->27         started        29 schtasks.exe 1 16->29         started        process9 dnsIp10 37 2.tcp.ngrok.io 3.22.53.161, 1111 AMAZON-02US United States 19->37 39 0.tcp.ngrok.io 3.13.191.225, 1111 AMAZON-02US United States 19->39 41 2 other IPs or domains 19->41 53 Hides threads from debuggers 19->53 signatures11
Threat name:
Win32.Packed.EnigmaProtector
Status:
Malicious
First seen:
2021-04-02 11:55:17 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
25 of 29 (86.21%)
Threat level:
  1/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
8c6fda54cc820bada2f2a260b8b4962b87b1e296ceebbad17e1f3c5cf1dd4fea
MD5 hash:
e9b7258388673c337e1677b611637da3
SHA1 hash:
82333c25dc3853d670bf45750776657f443f0c1d
SH256 hash:
f3fada003d43df7ab5b4f7d41a1b90646797bb41ecb4ca1c3afb37baaba10264
MD5 hash:
fbdc41a2c1059fc99b592ef844ee9311
SHA1 hash:
80c76bd783ef25062ac252f1b4422bc5f9dff909
Please note that we are no longer able to provide a coverage score for Virus Total.

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:asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:EnigmaStub
Author:@bartblaze
Description:Identifies Enigma packer stub.
Rule name:SUSP_XORed_URL_in_EXE
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_asyncrat_w0
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:win_smominru_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments