MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 703b1802d40218a99be7cad5d4661db3d988bf23bd9fcae5f3f851089e4c2c24. 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: 14


Intelligence 14 IOCs YARA 8 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 703b1802d40218a99be7cad5d4661db3d988bf23bd9fcae5f3f851089e4c2c24
SHA3-384 hash: e8c2ae9d2c7182fe607954fcf8a2aa6ff00f2fb54c1936f8a19f5d739edd4573f2115a2d6702827f31b7bb8064bc28fa
SHA1 hash: e272c5cda7a2709d2a7aeee4cb646d578b10706e
MD5 hash: 2e3e5815f54d997c30607313f5643492
humanhash: early-magazine-saturn-mexico
File name:2e3e5815f54d997c30607313f5643492
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:49'152 bytes
First seen:2022-08-23 23:09:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:mbRJZBILLWQ9+jiwtelDSN+iV08Ybygec/UN7vEgK/JbZVc6KN:mbRq9wtKDs4zb1//CnkJbZVclN
TLSH T1F9236D4037D8C136E2FD87B9ADF2A1418679D2676903CA5D6CC814EA1F13BC596036FE
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter zbetcheckin
Tags:32 AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
385
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
2e3e5815f54d997c30607313f5643492
Verdict:
Malicious activity
Analysis date:
2022-08-23 23:11:28 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/e4f8ad5b-d529-4996-893b-b747af22f63b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/300678/
Detection(s):
Win.Malware.Generickdz-9865912-0
Create hunting rule

Win.Malware.Enigmaprotector-9874743-0
Create hunting rule

Win.Malware.Enigmaprotector-9881027-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Creating a process from a recently created file
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm asyncrat coinminer configsecuritypolicy.exe dcrat evasive fareit hacktool mpcmdrun.exe msconfig.exe njrat packed rat regedit.exe windows
Link:
https://www.filescan.io/uploads/63055e31c9bbd990978cc481/reports/548d0ff1-f4cb-4469-9687-3dfce48fe984/overview
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:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b0e17508-bff6-4e41-ac26-c9f2c504ae27
Result
Threat name:
AsyncRAT, DcRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1056653
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to a pastebin service (likely for C&C)
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected DcRat
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 689170 Sample: 8r86jd8j4L Startdate: 24/08/2022 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for dropped file 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 10 other signatures 2->42 7 8r86jd8j4L.exe 7 2->7         started        10 Windows Service .exe 3 2->10         started        process3 file4 28 C:\Users\user\...\Windows Service .exe, PE32 7->28 dropped 30 C:\Users\user\AppData\...\8r86jd8j4L.exe.log, ASCII 7->30 dropped 12 cmd.exe 1 7->12         started        15 cmd.exe 1 7->15         started        process5 signatures6 44 Uses schtasks.exe or at.exe to add and modify task schedules 12->44 17 conhost.exe 12->17         started        19 schtasks.exe 1 12->19         started        21 Windows Service .exe 14 2 15->21         started        24 conhost.exe 15->24         started        26 timeout.exe 1 15->26         started        process7 dnsIp8 32 pastebin.com 172.67.34.170, 443, 49751, 49756 CLOUDFLARENETUS United States 21->32 34 18.139.9.214, 18600, 49752, 49757 AMAZON-02US United States 21->34
Detection:
dcrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/703b1802d40218a99be7cad5d4661db3d988bf23bd9fcae5f3f851089e4c2c24/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-23 23:10:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oa5rqawuaimktg7hzlk5izq5wpmyrpzdxwp4vzpt7biqrhsmfqsa._file
Verdict:
malicious
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat
Link:
https://tria.ge/reports/220823-2453laeaa9/
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
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Async RAT payload
AsyncRat
Unpacked files
SH256 hash:
703b1802d40218a99be7cad5d4661db3d988bf23bd9fcae5f3f851089e4c2c24
MD5 hash:
2e3e5815f54d997c30607313f5643492
SHA1 hash:
e272c5cda7a2709d2a7aeee4cb646d578b10706e
Link:
https://www.unpac.me/results/3cf026c8-58f8-4aff-b6fe-4570dbb9f004/
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/703b1802d40218a99be7cad5d4661db3d988bf23bd9fcae5f3f851089e4c2c24

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_B64_Artifacts
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Rule name:INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Author:ditekSHen
Description:Detects executables containing the string DcRatBy
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
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: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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AsyncRAT

Executable exe 703b1802d40218a99be7cad5d4661db3d988bf23bd9fcae5f3f851089e4c2c24

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/300678/
  
URLhaus
https://urlhaus.abuse.ch/url/2276240/

Comments


Avatar
zbet commented on 2022-08-23 23:09:11 UTC

url : hxxp://37.139.129.142/htdocs/DmYPTnSdDEWijWZ.exe