MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c508f1f478b8cc85dc3e85eb4f7aaff5dcc962341833a10e0d4ab22793001b62. 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: 16


Intelligence 16 IOCs 1 YARA 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c508f1f478b8cc85dc3e85eb4f7aaff5dcc962341833a10e0d4ab22793001b62
SHA3-384 hash: 8ee7ccacba9f12f7a96320a132cafd319f1027ff57b7c81c03982b3c9a41a361f82a4595ef55e4c01f2b52fe5ce091fa
SHA1 hash: d75d8f890e6102746f91823917677f66b9409a5a
MD5 hash: f2fa8d297f8933f28297099c9a26264e
humanhash: failed-twenty-sink-east
File name:f2fa8d297f8933f28297099c9a26264e.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:45'009'088 bytes
First seen:2025-05-05 08:00:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'833 x AgentTesla, 19'770 x Formbook, 12'296 x SnakeKeylogger)
ssdeep 786432:bMEFP+3j3rY45kY5E/kvx/bo8VvP5YWEb8rvZqxBATGrIJDNZusAoRdYQq6GNjPS:bMEFP+3j3E4WYB1VXmBxBwJD2ORhIjPS
Threatray 142 similar samples on MalwareBazaar
TLSH T1EBA73307B1EC0A4EC94C80B33A43015DF605BD5A9C67AE77EB7376868EB0365B29750E
TrID 45.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.4% (.EXE) Win64 Executable (generic) (10522/11/4)
9.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.6% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon b2ccece6b8cce2d0 (1 x AsyncRAT)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
172.111.245.3:9907

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
172.111.245.3:9907 https://threatfox.abuse.ch/ioc/1515897/

Intelligence

File Origin
# of uploads :
1
# of downloads :
524
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
f2fa8d297f8933f28297099c9a26264e.exe
Verdict:
Malicious activity
Analysis date:
2025-05-05 08:08:07 UTC
Tags:
asyncrat auto-reg rat remote
Link:
https://app.any.run/tasks/a2a09c2d-2507-4dfb-8f7f-c70d1322b4ba

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68187114432e243ac3e430fa
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Running batch commands
Creating a process from a recently created file
Connection attempt to an infection source
Unauthorized injection to a recently created process by context flags manipulation
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
confuser obfuscated obfuscated overlay overlay packed packed packer_detected
Link:
https://www.filescan.io/uploads/68187057c7418694c8a560ca/reports/0a2d6ca5-f035-47a9-a89a-6f9e2ef0346c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c508f1f478b8cc85dc3e85eb4f7aaff5dcc962341833a10e0d4ab22793001b62
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1681141
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1681141 Sample: QFkVLIAlLG.exe Startdate: 05/05/2025 Architecture: WINDOWS Score: 100 51 klarkgabi.zapto.org 2->51 53 Suricata IDS alerts for network traffic 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 8 other signatures 2->59 12 QFkVLIAlLG.exe 3 2->12         started        signatures3 process4 file5 47 C:\Users\user\AppData\...\QFkVLIAlLG.exe.log, ASCII 12->47 dropped 65 Detected unpacking (changes PE section rights) 12->65 67 Detected unpacking (overwrites its own PE header) 12->67 69 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 12->69 71 3 other signatures 12->71 16 QFkVLIAlLG.exe 6 12->16         started        signatures6 process7 file8 45 C:\Users\user\AppData\Roaming\wimedia.exe, PE32 16->45 dropped 19 cmd.exe 1 16->19         started        21 schtasks.exe 1 16->21         started        process9 process10 23 wimedia.exe 3 19->23         started        26 conhost.exe 19->26         started        28 timeout.exe 1 19->28         started        30 conhost.exe 21->30         started        signatures11 61 Antivirus detection for dropped file 23->61 63 Injects a PE file into a foreign processes 23->63 32 wimedia.exe 4 25 23->32         started        process12 dnsIp13 49 klarkgabi.zapto.org 172.111.245.3, 49689, 49694, 49695 M247GB United States 32->49 35 cmd.exe 32->35         started        37 schtasks.exe 1 32->37         started        process14 process15 39 conhost.exe 35->39         started        41 timeout.exe 35->41         started        43 conhost.exe 37->43         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c508f1f478b8cc85dc3e85eb4f7aaff5dcc962341833a10e0d4ab22793001b62
Gathering data
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2025-05-02 23:43:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
22 of 35 (62.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yuepd5dyxdgilxb6qxvu66vp6xomsyrudaz2cdqnjkzcpeyadnra._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0824eac1ce23de2321bce82efce874ab3c213d15f1a120d8ec08c85c7fbc250b
AsyncRAT
12bee16f9692cb9a6d3713543cf998a4f953d0341f4e9c661748faef525d91e6
AsyncRAT
45503927f90fe4aeae2c91c6f13d3a647338f44565cc2ca26ba0c1d49968c9bf
AsyncRAT
61e869da1d5cefe780a706e06b904c276d8393e618de382c3b4abdbb4d817222
AsyncRAT
d8f0a37788e14306d6f5a6b15417aec0c76d08fd9c788871ad50a9ac7cd6c73f
AsyncRAT
error
AsyncRAT
+ 132 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:null discovery rat
Link:
https://tria.ge/reports/250505-jwrk5agl9z/
Behaviour
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
klarkgabi.zapto.org:9907
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/aa65835d-b2b6-4ad6-88df-6423a038bde0
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c508f1f478b8/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/c508f1f478b8cc85dc3e85eb4f7aaff5dcc962341833a10e0d4ab22793001b62

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__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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: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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:Windows_Generic_Threat_c34e19e9
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_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)
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.

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

Comments