MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9948b34fd28e9717918b97f874b019bf2c52eda3c0cadc2b8933df2f4339ae5. 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: b9948b34fd28e9717918b97f874b019bf2c52eda3c0cadc2b8933df2f4339ae5
SHA3-384 hash: d6a08d684a38517b400d04aa5d9342dcd2f6b0343894a39e019d9fe19b85240dd8b5ff07fc23f24ddfe72e18d6d34a83
SHA1 hash: 5fae808a71dd93d71b4d49fb2a29b856773399dc
MD5 hash: 2fddba2a25623d9681743d90b453a4f7
humanhash: three-washington-nineteen-helium
File name:2fddba2a25623d9681743d90b453a4f7
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:49'152 bytes
First seen:2022-08-25 07:07:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:mbRJZBILLWQ9+jiwtelDSN+iV08Ybyge2OvfrTwBvvEgK/JbZVc6KN:mbRq9wtKDs4zb1p4DTw9nkJbZVclN
TLSH T191235C4037D8813AF2BD47B5ADF2E2418679E2676903CA596CC814EA1F13BC596036FE
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 :
299
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
2fddba2a25623d9681743d90b453a4f7
Verdict:
Malicious activity
Analysis date:
2022-08-25 07:09:59 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/0a00d329-27d0-491b-bf41-06e402372dc4

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/301053/
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug anti-vm configsecuritypolicy.exe evasive hacktool mpcmdrun.exe msconfig.exe njrat packed rat regedit.exe
Link:
https://www.filescan.io/uploads/63071fde1d34cfa37d96859f/reports/0d86b1f7-9c83-4d44-8083-fe5fce13b5ac/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/0e1c8885-2e3c-4bef-8242-65a88081b372
Result
Threat name:
AsyncRAT, DcRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1057492
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 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 dnsIp2 2 Behavior Graph ID: 690005 Sample: N3Df9byShy Startdate: 25/08/2022 Architecture: WINDOWS Score: 100 33 pastebin.com 2->33 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for dropped file 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 9 other signatures 2->45 8 N3Df9byShy.exe 7 2->8         started        11 Windows Service .exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Windows Service .exe, PE32 8->29 dropped 31 C:\Users\user\AppData\...313Df9byShy.exe.log, ASCII 8->31 dropped 13 cmd.exe 1 8->13         started        16 cmd.exe 1 8->16         started        process6 signatures7 47 Uses schtasks.exe or at.exe to add and modify task schedules 13->47 18 conhost.exe 13->18         started        20 schtasks.exe 1 13->20         started        22 Windows Service .exe 14 2 16->22         started        25 conhost.exe 16->25         started        27 timeout.exe 1 16->27         started        process8 dnsIp9 35 pastebin.com 104.20.67.143, 443, 49702, 49707 CLOUDFLARENETUS United States 22->35 37 13.229.3.203, 11152, 49703, 49708 AMAZON-02US United States 22->37
Detection:
dcrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b9948b34fd28e9717918b97f874b019bf2c52eda3c0cadc2b8933df2f4339ae5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-25 07:08:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
35 of 40 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xgkiwnh5fduxc6iyxf7yosybtpzmklw2hqgk3qvysm67f5bttlsq._file
Verdict:
malicious
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat
Link:
https://tria.ge/reports/220825-hx8elahcdm/
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:
b9948b34fd28e9717918b97f874b019bf2c52eda3c0cadc2b8933df2f4339ae5
MD5 hash:
2fddba2a25623d9681743d90b453a4f7
SHA1 hash:
5fae808a71dd93d71b4d49fb2a29b856773399dc
Link:
https://www.unpac.me/results/327ad350-3c59-4621-ad7a-7b69fc371f98/
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/b9948b34fd28e9717918b97f874b019bf2c52eda3c0cadc2b8933df2f4339ae5

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 b9948b34fd28e9717918b97f874b019bf2c52eda3c0cadc2b8933df2f4339ae5

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2277368/
Cape
Cape
https://www.capesandbox.com/analysis/301053/

Comments


Avatar
zbet commented on 2022-08-25 07:07:26 UTC

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