MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 128ee5116439827966392f77da9527f5f586ff5efa62a8f3f50c7d7a2e56757a. 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: 19


Intelligence 19 IOCs YARA 21 File information Comments

SHA256 hash: 128ee5116439827966392f77da9527f5f586ff5efa62a8f3f50c7d7a2e56757a
SHA3-384 hash: 7b83fb89d327c1424d847c89d0ad14151c95b509bd05d08c263b0dd1e707301b466bda1961ea4f5e7ee4fd8b0ddd86ff
SHA1 hash: ed9176679792aff0b09a45f14dcec0e15973b692
MD5 hash: 7f11f6d1e63801a069b5242455439045
humanhash: solar-nevada-bakerloo-michigan
File name:payload1.dll
Download: download sample
Signature AsyncRAT
File size:46'080 bytes
First seen:2023-11-21 01:53:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:mu/dRTUo0HQbWUnmjSmo2qMwKjPGaG6PIyzjbFgX3ixKF335WNVYBDZyx:mu/dRTUPE2kKTkDy3bCXScZPdyx
TLSH T149231B003BD8822BF2BE4F78ACF26145467AF6A76603D54D1CC451DB5A13FC68A426FE
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter x3ph1
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
369
Origin country :
US US
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
128ee5116439827966392f77da9527f5f586ff5efa62a8f3f50c7d7a2e56757a.zip
Verdict:
Malicious activity
Analysis date:
2023-11-21 09:04:29 UTC
Tags:
rat asyncrat remote

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

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm asyncrat lolbin masquerade njrat packed reg replace schtasks
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, zgRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses dynamic DNS services
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected zgRAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2023-11-20 18:24:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
31 of 36 (86.11%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
asyncrat
Result
Malware family:
Score:
  10/10
Tags:
family:asyncrat family:zgrat botnet:yahoo rat spyware stealer
Behaviour
Suspicious use of AdjustPrivilegeToken
Reads user/profile data of web browsers
Async RAT payload
AsyncRat
Detect ZGRat V1
ZGRat
Malware Config
C2 Extraction:
iced.ddns.net:6606
Unpacked files
SH256 hash:
128ee5116439827966392f77da9527f5f586ff5efa62a8f3f50c7d7a2e56757a
MD5 hash:
7f11f6d1e63801a069b5242455439045
SHA1 hash:
ed9176679792aff0b09a45f14dcec0e15973b692
Detections:
AsyncRAT win_asyncrat_w0 INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse win_asyncrat_unobfuscated win_asyncrat_bytecodes asyncrat
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:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
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:MAL_AsyncRAT_Config_Decryption
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:msil_suspicious_use_of_strreverse
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:Njrat
Author:botherder https://github.com/botherder
Description:Njrat
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:Windows_Trojan_Asyncrat_11a11ba1
Author:Elastic Security
Rule name:win_asyncrat_bytecodes
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
Rule name:win_asyncrat_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_unobfuscated
Author:Matthew @ Embee_Research
Description:Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
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.

Comments