MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 acf2a71cba2dc40faf0c8a9a63189beb1cfd5a3601a202b02101cd7b69ec34e8. 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 2 File information Comments
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SHA256 hash: acf2a71cba2dc40faf0c8a9a63189beb1cfd5a3601a202b02101cd7b69ec34e8
SHA3-384 hash: 2d1a983f91a94a9db42b9059fc31d85cbdd4b59f24a32f83c090d8acfc820adf9e01d1c5a8e2c00d36bedc9d7c5e9806
SHA1 hash: 546e9292879e58e98af15fa56468a3f051e71ab9
MD5 hash: 0900fded4335b644fc5a6064236a2050
humanhash: river-red-nineteen-south
File name:0900fded4335b644fc5a6064236a2050.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:28'672 bytes
First seen:2022-07-07 05:21:21 UTC
Last seen:2022-07-07 05:46:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:cURHqjfMp/4BXovp5BC0Sbbkvk7mRZ0hmlOWri9djX43smGfaswOi8:rHWEQBXKdybkvyaZ0gfi9dj3fJwOJ
TLSH T17FD2E7217FD30229E3E91E784A5F4A32D3B5A2231323A30F7D45A39508553ED9E4B7E6
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
Aztec.exe
Verdict:
Malicious activity
Analysis date:
2022-07-05 01:39:59 UTC
Tags:
loader trojan rat asyncrat
Link:
https://app.any.run/tasks/3acf1b66-2e58-4361-bd7e-08f2a2ef0858

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/285341/
Detection(s):
SecuriteInfo.com.Trojan.Siggen18.18103.17015.20784.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Creating a window
Launching a process
Changing a file
Unauthorized injection to a recently created process
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm evasive exploit fingerprint packed
Link:
https://www.filescan.io/uploads/62c66d7b11764e36f81d8971/reports/2cdc029d-d4c4-4a5d-98f2-a0d9b953565c/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:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e6e79d80-df0c-4ff2-b36e-7dd784050e56
Result
Threat name:
AsyncRAT, DcRat, Hog Grabber
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1026107
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found many strings related to Crypto-Wallets (likely being stolen)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected BrowsingHistoryView browser history reader tool
Yara detected Costura Assembly Loader
Yara detected DcRat
Yara detected Generic Downloader
Yara detected Hog Grabber
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 658602 Sample: rrZ2mLiN07.exe Startdate: 07/07/2022 Architecture: WINDOWS Score: 100 94 ipecho.net 2->94 96 gateway.discord.gg 2->96 98 discord.com 2->98 112 Snort IDS alert for network traffic 2->112 114 Multi AV Scanner detection for domain / URL 2->114 116 Malicious sample detected (through community Yara rule) 2->116 118 19 other signatures 2->118 13 rrZ2mLiN07.exe 15 5 2->13         started        signatures3 process4 dnsIp5 100 185.102.170.157, 49752, 80 COMCAST-7922US Netherlands 13->100 86 C:\Users\user\AppData\Local\Temp\MsEdge.exe, PE32 13->86 dropped 88 C:\Users\user\AppData\...\rrZ2mLiN07.exe.log, ASCII 13->88 dropped 17 MsEdge.exe 4 5 13->17         started        file6 process7 dnsIp8 90 7.tcp.eu.ngrok.io 3.124.67.191, 12728, 49764 AMAZON-02US United States 17->90 92 192.168.2.1 unknown unknown 17->92 74 C:\Users\user\AppData\Local\...\YourPhone.exe, PE32 17->74 dropped 76 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 17->76 dropped 120 Antivirus detection for dropped file 17->120 122 Multi AV Scanner detection for dropped file 17->122 124 Machine Learning detection for dropped file 17->124 22 cmd.exe 1 17->22         started        25 cmd.exe 1 17->25         started        27 cmd.exe 17->27         started        29 46 other processes 17->29 file9 signatures10 process11 signatures12 126 Suspicious powershell command line found 22->126 128 Bypasses PowerShell execution policy 22->128 31 powershell.exe 14 22->31         started        33 conhost.exe 22->33         started        35 powershell.exe 13 25->35         started        37 conhost.exe 25->37         started        39 conhost.exe 27->39         started        41 conhost.exe 29->41         started        43 conhost.exe 29->43         started        45 conhost.exe 29->45         started        47 30 other processes 29->47 process13 process14 49 RegAsm.exe 5 31->49         started        53 YourPhone.exe 35->53         started        file15 70 C:\Users\user\AppData\...\RtkBtManServ.exe, PE32 49->70 dropped 102 Antivirus detection for dropped file 49->102 104 Multi AV Scanner detection for dropped file 49->104 106 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 49->106 55 RtkBtManServ.exe 49->55         started        72 C:\Users\user\AppData\...\SysInternals.exe, PE32 53->72 dropped 108 Machine Learning detection for dropped file 53->108 110 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 53->110 59 cmd.exe 53->59         started        signatures16 process17 file18 78 C:\Users\user\AppData\Local\...\xwizard.exe, PE32 55->78 dropped 80 C:\Users\user\AppData\Local\...\winhlp32.exe, PE32 55->80 dropped 82 C:\Users\user\AppData\Local\...\snuvcdsm.exe, PE32 55->82 dropped 84 3 other files (none is malicious) 55->84 dropped 130 Antivirus detection for dropped file 55->130 132 Multi AV Scanner detection for dropped file 55->132 134 Machine Learning detection for dropped file 55->134 61 SysInternals.exe 59->61         started        64 timeout.exe 59->64         started        66 conhost.exe 59->66         started        signatures19 process20 signatures21 136 Antivirus detection for dropped file 61->136 138 Machine Learning detection for dropped file 61->138 68 conhost.exe 64->68         started        process22
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/acf2a71cba2dc40faf0c8a9a63189beb1cfd5a3601a202b02101cd7b69ec34e8/
Threat name:
ByteCode-MSIL.Exploit.BypassUac
Create hunting rule
Status:
Malicious
First seen:
2022-07-02 03:20:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vtzkohf2fxca7lymrknggge35mop2wrwagrafmbbahgxw2pmgtua._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default evasion rat spyware stealer suricata upx vmprotect
Link:
https://tria.ge/reports/220707-f2kg8afgd9/
Behaviour
Checks SCSI registry key(s)
Delays execution with timeout.exe
Enumerates system info in registry
Modifies registry class
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Looks for VMWare Tools registry key
UPX packed file
VMProtect packed file
Async RAT payload
Looks for VirtualBox Guest Additions in registry
NirSoft WebBrowserPassView
Nirsoft
AsyncRat
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT)
Malware Config
C2 Extraction:
7.tcp.eu.ngrok.io:12728
Unpacked files
SH256 hash:
acf2a71cba2dc40faf0c8a9a63189beb1cfd5a3601a202b02101cd7b69ec34e8
MD5 hash:
0900fded4335b644fc5a6064236a2050
SHA1 hash:
546e9292879e58e98af15fa56468a3f051e71ab9
Link:
https://www.unpac.me/results/6f73a612-c640-464d-906c-273ff3fe1650/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/acf2a71cba2dc40faf0c8a9a63189beb1cfd5a3601a202b02101cd7b69ec34e8

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: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.

Web download

AsyncRAT

Executable exe acf2a71cba2dc40faf0c8a9a63189beb1cfd5a3601a202b02101cd7b69ec34e8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2254712/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/285341/

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