MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91a6129ad3cbba13eb16ef45de4d5c124da36e27dfcdbf27daf98b1d602ea47a. 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 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91a6129ad3cbba13eb16ef45de4d5c124da36e27dfcdbf27daf98b1d602ea47a
SHA3-384 hash: b7fa13084f918c7991dc0c67dd1a6743e77c8d06937d72f94a83c957568ded07a4c5c1b7a3f4a100e6dabc74312150b1
SHA1 hash: 5ec60029b9676578e1d5ea8ed1a46315db567a78
MD5 hash: fa3eb5b42f64529a5b1287fe9b44678d
humanhash: autumn-mike-crazy-charlie
File name:fa3eb5b42f64529a5b1287fe9b44678d.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:140'288 bytes
First seen:2022-08-21 14:51:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:kRRVDK5DGyxyUWUOsDdsTAvenst0D5NaLvRHs9+zblTxI5lGKGiWIm:kkDGyxOsDdsTYenszb9hI
TLSH T138D308A86B6ECA3BC6AE47F0F441115187F10383D952FB05B8E558E11C873D1AB53AAF
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
366
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fa3eb5b42f64529a5b1287fe9b44678d.exe
Verdict:
No threats detected
Analysis date:
2022-08-21 14:53:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f00747ab-ae2d-4188-9c57-59701d009333

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/300027/
Detection(s):
Win.Packed.Cerbu-9963880-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Sending a UDP request
Sending a custom TCP request
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
exploit packed
Link:
https://www.filescan.io/uploads/6302469c3cbb13868a6ae07f/reports/f20b58a5-9f95-472e-9a99-b4700d898362/overview
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:
MassLogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2a7a1cd1-6d50-4157-ae08-baa0d87986ac
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1055062
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Creates an undocumented autostart registry key
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Self deletion via cmd or bat file
Sigma detected: Add file from suspicious location to autostart registry
Uses cmd line tools excessively to alter registry or file data
Uses netsh to modify the Windows network and firewall settings
Uses the Telegram API (likely for C&C communication)
Yara detected AsyncRAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 687575 Sample: GEDYBO9p2O.exe Startdate: 21/08/2022 Architecture: WINDOWS Score: 100 51 Multi AV Scanner detection for domain / URL 2->51 53 Antivirus detection for URL or domain 2->53 55 Yara detected UAC Bypass using CMSTP 2->55 57 7 other signatures 2->57 7 GEDYBO9p2O.exe 14 16 2->7         started        12 cmd.exe 1 2->12         started        14 cmd.exe 2->14         started        16 5 other processes 2->16 process3 dnsIp4 43 ip-api.com 208.95.112.1, 49728, 80 TUT-ASUS United States 7->43 45 api.telegram.org 149.154.167.220, 443, 49729 TELEGRAMRU United Kingdom 7->45 47 192.168.2.1 unknown unknown 7->47 41 C:\Users\user\AppData\...behaviorgraphEDYBO9p2O.exe.log, ASCII 7->41 dropped 61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->61 63 May check the online IP address of the machine 7->63 65 Self deletion via cmd or bat file 7->65 18 cmd.exe 7->18         started        67 Uses cmd line tools excessively to alter registry or file data 12->67 69 Uses netsh to modify the Windows network and firewall settings 12->69 20 conhost.exe 12->20         started        22 netsh.exe 12->22         started        24 reg.exe 14->24         started        27 conhost.exe 14->27         started        49 cothdesigns.com 223.165.6.91, 443, 49730, 49731 LINTASBUANA-AS-IDPTBUANALINTASMEDIAID Indonesia 16->49 29 conhost.exe 16->29         started        31 conhost.exe 16->31         started        33 netsh.exe 16->33         started        35 5 other processes 16->35 file5 signatures6 process7 signatures8 37 conhost.exe 18->37         started        39 choice.exe 18->39         started        59 Creates an undocumented autostart registry key 24->59 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91a6129ad3cbba13eb16ef45de4d5c124da36e27dfcdbf27daf98b1d602ea47a/
Threat name:
Win32.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2022-08-21 14:52:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
17 of 40 (42.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sgtbfgwtzo5bh2yw55c54tk4cjg2g3rh37g36j627gfr2ybour5a._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Result
Malware family:
n/a
Score:
  9/10
Tags:
evasion persistence trojan
Link:
https://tria.ge/reports/220821-r8p7tsahcr/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Checks whether UAC is enabled
Looks up external IP address via web service
Checks BIOS information in registry
Checks computer location settings
Adds policy Run key to start application
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Unpacked files
SH256 hash:
91a6129ad3cbba13eb16ef45de4d5c124da36e27dfcdbf27daf98b1d602ea47a
MD5 hash:
fa3eb5b42f64529a5b1287fe9b44678d
SHA1 hash:
5ec60029b9676578e1d5ea8ed1a46315db567a78
Link:
https://www.unpac.me/results/c0d2d0bd-0d45-4151-93e5-242bacab20f7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/91a6129ad3cbba13eb16ef45de4d5c124da36e27dfcdbf27daf98b1d602ea47a

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:AgentTesla
Create hunting rule
Author:Harish Kumar P
Description:Yara Rule to Detect AgentTesla
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/300027/

Comments