MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285. 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: 15


Intelligence 15 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285
SHA3-384 hash: 8ba8a46a86f8b26872c4fdfe7ee3b7def85fc9c674bd660607e0034fb00556e436315d2f0c5c1ca8c38c1fa0ec9c207a
SHA1 hash: 8dfae8d0183f68b62f9b3c9b88198404a1ff6ef6
MD5 hash: 0aecb205aba6cbf8a51c343fad500259
humanhash: mississippi-robert-six-texas
File name:xM6280MQQPyf.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:64'512 bytes
First seen:2024-04-16 22:49:26 UTC
Last seen:2024-04-18 20:04:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 1536:nhp5LrUwk4Xq0Wd4ZsYCnn/bb5wesr6GRZVclN:nhp5LrUwk4Xqd4CYCn/bb5TizY
TLSH T124536B002798CA66E1AD4AF8BCF2550106B1D5772116DB4E7CC854CBAB9EFCA46133EF
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 pmelson
Tags:AsyncRAT DCRat exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
612
Origin country :
US US
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285.exe
Verdict:
Malicious activity
Analysis date:
2024-04-16 22:52:48 UTC
Tags:
rat asyncrat remote
Link:
https://app.any.run/tasks/2a7e6b26-aec3-415d-b3b0-cf0bc3e16c85

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
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/87697c87-4fd9-44f3-baf3-20c41627aa67
Result
Threat name:
AsyncRAT, DcRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1427087
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
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
Sigma detected: Potentially Suspicious Malware Callback Communication
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AsyncRAT
Yara detected DcRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1427087 Sample: xM6280MQQPyf.exe Startdate: 17/04/2024 Architecture: WINDOWS Score: 100 17 powerdc.dynuddns.net 2->17 21 Snort IDS alert for network traffic 2->21 23 Found malware configuration 2->23 25 Malicious sample detected (through community Yara rule) 2->25 29 9 other signatures 2->29 8 xM6280MQQPyf.exe 2 5 2->8         started        signatures3 27 Uses dynamic DNS services 17->27 process4 dnsIp5 19 powerdc.dynuddns.net 45.32.168.59, 4040, 49730, 49739 AS-CHOOPAUS United States 8->19 11 cmd.exe 1 8->11         started        process6 process7 13 conhost.exe 11->13         started        15 timeout.exe 1 11->15         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285
Detection:
dcrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-04-16 22:50:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g7czwstlyuxs7izzro5hqsvytmrrnql634j3wniofr636wjt2kcq._file
Verdict:
malicious
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:powerdc1 rat
Link:
https://tria.ge/reports/240416-2r8yqagc5t/
Behaviour
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
AsyncRat
Malware Config
C2 Extraction:
powerdc.dynuddns.net:4040
Unpacked files
SH256 hash:
37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285
MD5 hash:
0aecb205aba6cbf8a51c343fad500259
SHA1 hash:
8dfae8d0183f68b62f9b3c9b88198404a1ff6ef6
Detections:
DCRat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Link:
https://www.unpac.me/results/88c32b2e-7eff-47c4-8323-d22c3599e83b/
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/37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285

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_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: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:Windows_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_unobfuscated
Create hunting rule
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)

File information

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

Web download

AsyncRAT

Executable exe 37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285

(this sample)

  
Link
https://www.virustotal.com/gui/file/37c59b4a6bc52f2fa3398bba784ab89b2316c17edf13bb350e2c7dbf5933d285/detection
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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