MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 21caa48efbe81da3c1c58b69610c43a0d913eb95d0892f24e7477d6ab446f36c. 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: 13
| SHA256 hash: | 21caa48efbe81da3c1c58b69610c43a0d913eb95d0892f24e7477d6ab446f36c |
|---|---|
| SHA3-384 hash: | 47c3ab47ba74d94b3cb07f76f83136d90b7332b2cfa1138cb7aac40bb9450b2b4bd54beab8dd5b8316bd3584e39a8506 |
| SHA1 hash: | 8a6ed9e01be08484f2bbf3e7e267ea0298330836 |
| MD5 hash: | b1bb23ee86ed2d0f47765a868779d083 |
| humanhash: | juliet-item-undress-ten |
| File name: | Invoice ATC20211230.exe |
| Download: | download sample |
| Signature | AsyncRAT |
| File size: | 88'064 bytes |
| First seen: | 2021-12-29 16:17:39 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger) |
| ssdeep | 1536:LBdTEgBbN+xP9cPppv3s54ldQxM/TsLi+vQrpazPcXofYsxzR17TtJeqZx:LBxEgBbNR68d4kX6YsxzRB5JeqZx |
| Threatray | 165 similar samples on MalwareBazaar |
| TLSH | T14683D051E78A47B1EAF407F274CB8A7262F41F62712BE0AF10993FDA34433594A4AB45 |
| File icon (PE): |  |
| dhash icon | 62e68c18148ca0e0 (10 x CoinMiner, 7 x AgentTesla, 4 x SnakeKeylogger) |
| Reporter |  GovCERT_CH |
| Tags: | AsyncRAT exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
281
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice ATC20211230.exe
Verdict:
Suspicious activity
Analysis date:
2021-12-29 16:18:50 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
zgRAT
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Creating a process with a hidden window
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
jigsaw obfuscated packed strictor
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:
Quasar RAT
Verdict:
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)
.NET source code contains potential unpacker
Allocates memory in foreign processes
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Uses dynamic DNS services
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Strictor
Status:
Malicious
First seen:
2021-12-29 16:18:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
14 of 28 (50.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
asyncrat
Similar samples:
+ 155 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Score:
10/10
Tags:
family:asyncrat rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
AsyncRat
Unpacked files
SH256 hash:
21caa48efbe81da3c1c58b69610c43a0d913eb95d0892f24e7477d6ab446f36c
MD5 hash:
b1bb23ee86ed2d0f47765a868779d083
SHA1 hash:
8a6ed9e01be08484f2bbf3e7e267ea0298330836
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: | INDICATOR_SUSPICIOUS_EXE_DiscordURL |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables Discord URL observed in first stage droppers |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | SUSP_PE_Discord_Attachment_Oct21_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN) |
| 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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