MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ea04850fa21b0c32d74e4f6dfd09540efb4674cb64e6836b4842d8a7e6ae587a. 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 19 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ea04850fa21b0c32d74e4f6dfd09540efb4674cb64e6836b4842d8a7e6ae587a
SHA3-384 hash: 8d390a1c25967a0fd4d8fc9f54cec92aa92c8219404d76eb67e585a9778f34bf701815078e94522650e8bdd72166177c
SHA1 hash: 1755e9e23b212c625fd2abe28ddd8255417bdc59
MD5 hash: 65c06c0404ce69f08491b0f868e0b635
humanhash: twenty-beryllium-item-carbon
File name:65c06c0404ce69f08491b0f868e0b635
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:46'080 bytes
First seen:2023-08-08 01:28:22 UTC
Last seen:2023-08-24 16:49:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'471 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:jujYm1TUET1/WUTQV9mo2qz+8V1vBTcPI1zjbkgX3iKKeS6XGdmLhufvfBDZ/x:jujYm1TU0I2P8VnTh13brXSR+iyGvpdp
Threatray 3'165 similar samples on MalwareBazaar
TLSH T108232C003BE9823BF2BE4F789DF26145867AF2633602D64A1CC4519B5613FC69A436FD
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 zbetcheckin
Tags:32 AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
310
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
65c06c0404ce69f08491b0f868e0b635
Verdict:
Malicious activity
Analysis date:
2023-08-08 01:31:00 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/3731b0a1-5d52-490f-bde9-38fe21bda6e4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/441153/
Detection(s):
Win.Packed.Razy-9625918-0
Create hunting rule

Win.Packed.AsyncRAT-9856570-1
Create hunting rule

Win.Packed.AsyncRAT-9861056-1
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Sending a custom TCP request
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
Labled as:
AsyncRAT.Marte.B.Generic
Link:
https://www.hybrid-analysis.com/sample/ea04850fa21b0c32d74e4f6dfd09540efb4674cb64e6836b4842d8a7e6ae587a
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:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b2f25441-cff4-46e2-b510-87be9caad0a5
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1287368
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1287368 Sample: 7AGtfFtMkt.exe Startdate: 08/08/2023 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus / Scanner detection for submitted sample 2->37 39 5 other signatures 2->39 7 UpdateHost.exe 2 2->7         started        11 7AGtfFtMkt.exe 7 2->11         started        process3 dnsIp4 31 127.0.0.1 unknown unknown 7->31 41 Antivirus detection for dropped file 7->41 43 Multi AV Scanner detection for dropped file 7->43 45 Machine Learning detection for dropped file 7->45 29 C:\Users\user\AppData\...\UpdateHost.exe, PE32 11->29 dropped 14 cmd.exe 1 11->14         started        17 cmd.exe 1 11->17         started        file5 signatures6 process7 signatures8 47 Uses schtasks.exe or at.exe to add and modify task schedules 14->47 19 conhost.exe 14->19         started        21 schtasks.exe 1 14->21         started        23 UpdateHost.exe 3 17->23         started        25 conhost.exe 17->25         started        27 timeout.exe 1 17->27         started        process9
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ea04850fa21b0c32d74e4f6dfd09540efb4674cb64e6836b4842d8a7e6ae587a/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-08-08 01:29:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5icikd5cdmgdfv2oj5w72ckub35um5glmttig22iilmkpzvolb5a._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0b8a5cbe236a7057a2904f18480b85ce9b59b891c0a1a041516248d35760744d
AsyncRAT
1299373ec40fc1f3f16957338574a9ad51a94e62220cc8c08f1ad81dee443544
AsyncRAT
16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a
AsyncRAT
1a9e9deb92ea9d2cd35f94b5b0cfaecfd353fe71d886aa0ee4da2d7b454427aa
AsyncRAT
2799478f81991ca4ba86ccf7a234f95199cf3743f6a1112f20666b6ce104e557
AsyncRAT
438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
AsyncRAT
6b5727c6490854539140bc2414d48fbed9e557ddc48b875ed80626d1f6d68988
AsyncRAT
bcf7571a4d9b25fabdc2d6120b1b2d7bd8446ea2bc3a5da1d4127954920067de
AsyncRAT
ceddcfa72226e91f7435facafe6631d1385ca4d246d242d5136ac4e9462b8611
AsyncRAT
ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be
AsyncRAT
+ 3'155 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/230808-bv85sabe9x/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
Unpacked files
SH256 hash:
ea04850fa21b0c32d74e4f6dfd09540efb4674cb64e6836b4842d8a7e6ae587a
MD5 hash:
65c06c0404ce69f08491b0f868e0b635
SHA1 hash:
1755e9e23b212c625fd2abe28ddd8255417bdc59
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/2b801794-df9a-46f5-9e64-8fe8accdb1a5/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ea04850fa21b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ea04850fa21b0c32d74e4f6dfd09540efb4674cb64e6836b4842d8a7e6ae587a

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
Create hunting rule
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:malware_asyncrat
Create hunting rule
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:msil_suspicious_use_of_strreverse
Create hunting rule
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:Windows_Trojan_Asyncrat_11a11ba1
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Create hunting rule
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.

Web download

AsyncRAT

Executable exe ea04850fa21b0c32d74e4f6dfd09540efb4674cb64e6836b4842d8a7e6ae587a

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/441153/
  
URLhaus
https://urlhaus.abuse.ch/url/2702375/

Comments


Avatar
zbet commented on 2023-08-08 01:28:24 UTC

url : hxxp://37.139.129.145/img/test.exe