MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3eb1cc1c92cffaf47f4a3eb039ab826b9902bc7bfc71b717e813945d420379a6. 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: 17


Intelligence 17 IOCs YARA 24 File information Comments

SHA256 hash: 3eb1cc1c92cffaf47f4a3eb039ab826b9902bc7bfc71b717e813945d420379a6
SHA3-384 hash: 2301a4d62aefda4554b4fea4b83321ada9f4859b5bdaf3692f9e5c668da84d6989a8ae56fb61546a860bc59bab5b8944
SHA1 hash: 1595e74c0a9bec443274ac3ae46da7dbed1cc794
MD5 hash: f5ebbe3c0003f12b4ca3891b819aca0c
humanhash: aspen-saturn-kilo-paris
File name:Comprobante de pago - Septiembre.exe
Download: download sample
Signature AsyncRAT
File size:1'018'985 bytes
First seen:2023-10-02 07:01:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 00be6e6c4f9e287672c8301b72bdabf3 (116 x RedLineStealer, 70 x AsyncRAT, 55 x AgentTesla)
ssdeep 24576:wNA3R5drX1DEZTDUs+0mLI/XSIsHubrpdwbipLUIi:p5pmDbmwXdrpSmi
Threatray 1'825 similar samples on MalwareBazaar
TLSH T1BA251242B7D284B2D6721A361D39AB10697CBC705F34DA2FB3C8792DDA32181A535F63
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0c4d0c052d0d0d01 (6 x AsyncRAT)
Reporter lowmal3
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
291
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
Comprobante de pago - Septiembre.rar
Verdict:
Malicious activity
Analysis date:
2023-10-02 09:14:44 UTC
Tags:
asyncrat

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

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %AppData% directory
Running batch commands
Creating a process from a recently created file
Sending a custom TCP request
Creating a file in the %temp% directory
Creating a file
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware lolbin overlay packed replace setupapi shdocvw shell32
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1317753 Sample: Comprobante_de_pago_-_Septi... Startdate: 02/10/2023 Architecture: WINDOWS Score: 100 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 2 other signatures 2->57 13 Comprobante_de_pago_-_Septiembre.exe 5 9 2->13         started        process3 file4 47 C:\Users\user\AppData\...\hvjhlder.sfx.exe, PE32 13->47 dropped 16 cmd.exe 1 13->16         started        process5 process6 18 hvjhlder.sfx.exe 7 16->18         started        22 conhost.exe 16->22         started        file7 43 C:\Users\user\AppData\Roaming\hvjhlder.exe, PE32 18->43 dropped 59 Multi AV Scanner detection for dropped file 18->59 24 hvjhlder.exe 9 18->24         started        signatures8 process9 file10 45 C:\Users\user\AppData\...\akdhfdsb.sfx.exe, PE32 24->45 dropped 69 Antivirus detection for dropped file 24->69 71 Multi AV Scanner detection for dropped file 24->71 28 cmd.exe 1 24->28         started        signatures11 process12 process13 30 akdhfdsb.sfx.exe 8 28->30         started        34 conhost.exe 28->34         started        file14 49 C:\Users\user\AppData\Local\...\akdhfdsb.exe, PE32 30->49 dropped 73 Multi AV Scanner detection for dropped file 30->73 36 akdhfdsb.exe 1 30->36         started        signatures15 process16 signatures17 61 Antivirus detection for dropped file 36->61 63 Multi AV Scanner detection for dropped file 36->63 65 Machine Learning detection for dropped file 36->65 67 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 36->67 39 akdhfdsb.exe 36->39         started        process18 process19 41 WerFault.exe 2 39->41         started       
Threat name:
Win32.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2023-09-30 14:47:49 UTC
File Type:
PE (Exe)
Extracted files:
29
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:default8 rat
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
185.225.73.105:8675
185.225.73.105:7896
185.225.73.105:7707
mloptuytonroyem.sytes.net:8675
mloptuytonroyem.sytes.net:7896
mloptuytonroyem.sytes.net:7707
Unpacked files
SH256 hash:
9f19623b420e7edba7e2de2fc6e369ccc23e4401f5b3d7f653e70c0aaa805fca
MD5 hash:
7c977f4fd8bc5096524b682a0192b80a
SHA1 hash:
c888757983efe6124ba91f4b406c690adaa55f7f
SH256 hash:
95aeb1034f5fb09145372b8b868cc10e1fb4bb40596c0330b3470b7a5f438f44
MD5 hash:
1b3134cc846206758a58b8c390a63f71
SHA1 hash:
9e3790d3ed6607159f7ab6db1864672d78d44803
SH256 hash:
be6040aaca9745af6b8d49c1ba1d53fda53c777a5d34aadcb7e02dbe54bed187
MD5 hash:
9224e662464b8342a06875a88072a322
SHA1 hash:
36b0345e8f3db9632d90129d817d7255364861ca
SH256 hash:
498db86f4fea04e195e303d509e885e78cdcb37eef94846d7060992b38f90efe
MD5 hash:
24a860d600832b5da480eb837d659735
SHA1 hash:
142770a53a5451377827e409d5ca60e3854c73c9
Detections:
AsyncRAT win_asyncrat_w0
SH256 hash:
3eb1cc1c92cffaf47f4a3eb039ab826b9902bc7bfc71b717e813945d420379a6
MD5 hash:
f5ebbe3c0003f12b4ca3891b819aca0c
SHA1 hash:
1595e74c0a9bec443274ac3ae46da7dbed1cc794
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__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
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:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SelfExtractingRAR
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
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_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.

Malspam

AsyncRAT

Executable exe 3eb1cc1c92cffaf47f4a3eb039ab826b9902bc7bfc71b717e813945d420379a6

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments