MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b92972ca085bc481bdc9fb6350815e771918814804fb37947d01e748ffa916a9. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash: b92972ca085bc481bdc9fb6350815e771918814804fb37947d01e748ffa916a9
SHA3-384 hash: 601990899cb83422d8370d346350d70524e9c6e904e492fb63d45faf18906fd609e18adb71dad7984ff8187622c5c37a
SHA1 hash: 14e069e6ae375c9bf1d2beccb240ed1a8bd5038b
MD5 hash: a09768bf927c5a482da4b70b653deda9
humanhash: emma-berlin-mountain-edward
File name:iUbwZ3dA6u7o6EeLb2j3.exe
Download: download sample
Signature AsyncRAT
File size:49'676 bytes
First seen:2021-02-04 02:54:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:PBbGajYEOzsHHmd2bSxb8DW8sUxPzEDGwtmVcl+:PB5jczYA2bSxoDNXxAdt8Y+
Threatray 584 similar samples on MalwareBazaar
TLSH B3232B043BE98126E2BD4F789DE22145877AF6233503D65F3C8842D74B53BC6CA91AF6
Reporter vm001cn
Tags:AsyncRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
iUbwZ3dA6u7o6EeLb2j3.exe
Verdict:
Malicious activity
Analysis date:
2021-02-04 03:02:54 UTC
Tags:
trojan stealer rat avemaria

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

Behaviour
Using the Windows Management Instrumentation requests
Sending a UDP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Running batch commands
Creating a process from a recently created file
Creating a window
DNS request
Unauthorized injection to a recently created process
Sending a TCP request to an infection source
Connection attempt to an infection source
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary contains a suspicious time stamp
Connects to many ports of the same IP (likely port scanning)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Machine Learning detection for dropped file
Machine Learning detection for sample
Protects its processes via BreakOnTermination flag
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses known network protocols on non-standard ports
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Status:
Malicious
First seen:
2021-02-04 02:55:10 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat ransomware rat
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
Harry9171-41182.portmap.io:41182
Harry9171-41182.portmap.io:7119
Harry9171-41182.portmap.io:8080
Harry9171-41182.portmap.io:8081
Harry9171-41182.portmap.io:443
Harry9171-41182.portmap.io:80
Unpacked files
SH256 hash:
b92972ca085bc481bdc9fb6350815e771918814804fb37947d01e748ffa916a9
MD5 hash:
a09768bf927c5a482da4b70b653deda9
SHA1 hash:
14e069e6ae375c9bf1d2beccb240ed1a8bd5038b
Detections:
win_asyncrat_w0
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:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
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:Reverse_text_bin_mem
Author:James_inthe_box
Description:Reverse text detected
Rule name:win_asyncrat_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research

File information


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

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