MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cdd4ab01797a178b70303381028cb419a8550a15fa75bdb40f6d56bc289b7dcf. 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: 9
| SHA256 hash: | cdd4ab01797a178b70303381028cb419a8550a15fa75bdb40f6d56bc289b7dcf |
|---|---|
| SHA3-384 hash: | 8c21ac1a8b0f47368b3e88e94ee47ba3b54261e6a591751f3cf8a088055ad58ff987ece28a41704c0a109f5139912214 |
| SHA1 hash: | bb0c2774e0bae878e86fed4e914db9ffff306361 |
| MD5 hash: | 95db775b2006533ec4a464e90c615c80 |
| humanhash: | connecticut-speaker-indigo-michigan |
| File name: | Document-Required.vbs |
| Download: | download sample |
| Signature | AsyncRAT |
| File size: | 49'225 bytes |
| First seen: | 2022-03-08 03:59:15 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 384:xuBcm9KKt7Db6o7dLGRtQFf7D7FwPm1swscg7Btr:l |
| Threatray | 3'288 similar samples on MalwareBazaar |
| TLSH | T10323D3D5872895FC77FCDC0A8FFAA90D2400852E8C737846DE8A007951B8867B9F657E |
| Reporter |  ankit_anubhav |
| Tags: | AsyncRAT vbs |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 208.51.61.44:128 | https://threatfox.abuse.ch/ioc/392933/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
232
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
MALICIOUS
Result
Threat name:
AsyncRAT
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Powershell drops PE file
Sigma detected: Parent in Public Folder Suspicious Process
Sigma detected: Suspicious PowerShell Invocations - Specific
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: Suspicius Schtasks From Env Var Folder
Sigma detected: Windows Shell File Write to Suspicious Folder
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Suspicious powershell command line found
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
VBScript performs obfuscated calls to suspicious functions
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Valyria
Status:
Malicious
First seen:
2022-03-08 04:00:11 UTC
File Type:
Text (VBS)
AV detection:
7 of 42 (16.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
asyncrat
Similar samples:
+ 3'278 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Score:
10/10
Tags:
family:asyncrat rat
Behaviour
Creates scheduled task(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
Drops startup file
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
Dropper Extraction:
http://34.105.85.231/New/Testavast+denf.txt
Malware family:
AsyncRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | kevoreilly, JPCERT/CC Incident Response Group |
| Description: | AsyncRat Payload |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse |
|---|---|
| Author: | ditekSHen |
| Description: | Detects file containing reversed ASEP Autorun registry keys |
| Rule name: | malware_asyncrat |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect AsyncRat in memory |
| Reference: | internal research |
| Rule name: | MAL_AsnycRAT |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Description: | Detects AsnycRAT based on it's config decryption routine |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | SUSP_DOTNET_PE_List_AV |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Description: | Detecs .NET Binary that lists installed AVs |
| Rule name: | SUSP_Reverse_Run_Key |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Description: | Detects a Reversed Run Key |
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
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