MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b871ed20d46a9be3a4aedb5facad152ab24289b6866076cb7ffc59721ca7525c. 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 YARA 6 File information Comments
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SHA256 hash: b871ed20d46a9be3a4aedb5facad152ab24289b6866076cb7ffc59721ca7525c
SHA3-384 hash: 8020a8dd8c2596dc07e95a19a9f665a07b5d740dd51f48fc964ce47977adc34d0f75ccb15d6d896cb4df96414c9464f2
SHA1 hash: e1f0199ed131a90e25204399e4e876da64ea3ba5
MD5 hash: 28db4677dcbbaa0a4c5adbc02c9da4f3
humanhash: seven-pizza-mountain-butter
File name:b871ed20d46a9be3a4aedb5facad152ab24289b6866076cb7ffc59721ca7525c.exe
Download: download sample
Signature AsyncRAT
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File size:265'216 bytes
First seen:2024-12-14 17:51:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'853 x AgentTesla, 19'780 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 6144:ByHp/aGMFlSShM00Iyew/2xrvhwCS9KSyiIBov:IJ/pFJIyN/2RbhHiIS
Threatray 1'611 similar samples on MalwareBazaar
TLSH T1E444123881DC5C93CA564BF9347A9C127F398DE6F21C9FF929222553F1E227A4488F94
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter Chainskilabs
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
389
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Install.exe
Verdict:
Malicious activity
Analysis date:
2024-12-14 12:00:43 UTC
Tags:
evasion pastebin telegram xworm ims-api generic remote amsi-bypass
Link:
https://app.any.run/tasks/ac12448d-cbac-416b-a1dc-1316c0c0e0ca

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Siggen21.26995.21914.20788.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=675d736a8fb73f13afc5e1fb
Tags:
asyncrat autorun cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file
Creating a process from a recently created file
Creating a file in the Windows subdirectories
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Launching a process
Creating a file in the system32 subdirectories
Searching for synchronization primitives
Sending a custom TCP request
Creating a window
Enabling the 'hidden' option for recently created files
Setting browser functions hooks
Unauthorized injection to a recently created process
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Creating a file in the mass storage device
Enabling autorun by creating a file
Using obfuscated Powershell scripts
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Enabling threat expansion on mass storage devices
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/675dc5c320320a764c014f21/reports/f097dd8a-86dd-40a1-9439-0f94b2d8164a/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/b871ed20d46a9be3a4aedb5facad152ab24289b6866076cb7ffc59721ca7525c
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:
ModernLoader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/68e67ae5-61db-4b21-9919-26128a62788e
Result
Threat name:
77Rootkit, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1575208
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Connects to a pastebin service (likely for C&C)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Creates files in the system32 config directory
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Hooks files or directories query functions (used to hide files and directories)
Hooks processes query functions (used to hide processes)
Hooks registry keys query functions (used to hide registry keys)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Installs new ROOT certificates
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Protects its processes via BreakOnTermination flag
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: Potential WinAPI Calls Via CommandLine
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected 77Rootkit
Yara detected Generic Downloader
Yara detected Telegram RAT
Yara detected Telegram Recon
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1575208 Sample: RdLfpZY5A9.exe Startdate: 14/12/2024 Architecture: WINDOWS Score: 100 52 ip-api.com 2->52 78 Suricata IDS alerts for network traffic 2->78 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 30 other signatures 2->84 9 RdLfpZY5A9.exe 4 2->9         started        13 powershell.exe 2 15 2->13         started        signatures3 process4 file5 42 C:\ProgramData\KrnlSetupSus.exe, PE32 9->42 dropped 44 C:\ProgramData\Install.exe, PE32 9->44 dropped 46 C:\Users\user\AppData\...\RdLfpZY5A9.exe.log, CSV 9->46 dropped 86 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->86 15 KrnlSetupSus.exe 15 6 9->15         started        20 Install.exe 1 9->20         started        88 Writes to foreign memory regions 13->88 90 Modifies the context of a thread in another process (thread injection) 13->90 92 Found suspicious powershell code related to unpacking or dynamic code loading 13->92 94 Injects a PE file into a foreign processes 13->94 22 dllhost.exe 1 13->22         started        24 conhost.exe 13->24         started        signatures6 process7 dnsIp8 54 ip-api.com 208.95.112.1, 49706, 80 TUT-ASUS United States 15->54 56 115.69.183.222, 37593, 49716, 49718 TRUSTPOWERLTD-AS-APTrustPowerLtdNZ New Zealand 15->56 58 2 other IPs or domains 15->58 40 C:\ProgramData\ntoskrnl.exe, PE32 15->40 dropped 60 Antivirus detection for dropped file 15->60 62 Multi AV Scanner detection for dropped file 15->62 64 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 15->64 74 5 other signatures 15->74 26 powershell.exe 21 15->26         started        66 Machine Learning detection for dropped file 20->66 68 Injects code into the Windows Explorer (explorer.exe) 22->68 70 Contains functionality to inject code into remote processes 22->70 72 Writes to foreign memory regions 22->72 76 2 other signatures 22->76 29 lsass.exe 22->29 injected 31 svchost.exe 22->31 injected 33 svchost.exe 22->33 injected 36 30 other processes 22->36 file9 signatures10 process11 dnsIp12 96 Loading BitLocker PowerShell Module 26->96 38 conhost.exe 26->38         started        98 Installs new ROOT certificates 29->98 100 Creates files in the system32 config directory 29->100 102 Writes to foreign memory regions 29->102 104 System process connects to network (likely due to code injection or exploit) 31->104 48 pastebin.com 33->48 50 api.telegram.org 33->50 signatures13 106 Connects to a pastebin service (likely for C&C) 48->106 108 Uses the Telegram API (likely for C&C communication) 50->108 process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b871ed20d46a9be3a4aedb5facad152ab24289b6866076cb7ffc59721ca7525c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b871ed20d46a9be3a4aedb5facad152ab24289b6866076cb7ffc59721ca7525c/
Threat name:
Win32.Exploit.Xworm
Create hunting rule
Status:
Malicious
First seen:
2024-12-14 12:00:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xby62igunkn6hjfo3np2zlivfkzefcnwqzqhns377rmxehfhkjoa._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
9e5865fd21de52ffdfed7301c0542693d1a5a066c49dfb197ddce0acab589b7b
AsyncRAT
b9503635ef25a584476f71aa4a010b3978ee04e8a956e810b71b05bbef32bb07
AsyncRAT
c89625e4304d4708308a8a4138af28b90d490e8bd29ccdf3bc1f567d9644a7d7
AsyncRAT
dc548fee1dce52d153d237db152566a9c7d12814e1493d6aa792534ee9e4405d
AsyncRAT
error
AsyncRAT
+ 1'601 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm bootkit defense_evasion discovery evasion execution persistence rat trojan
Link:
https://tria.ge/reports/241214-wfp4ks1pbn/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Writes to the Master Boot Record (MBR)
Checks BIOS information in registry
Checks computer location settings
Drops startup file
Executes dropped EXE
Indicator Removal: Clear Windows Event Logs
Command and Scripting Interpreter: PowerShell
Sets service image path in registry
Detect Xworm Payload
Modifies security service
Suspicious use of NtCreateUserProcessOtherParentProcess
Xworm
Xworm family
Verdict:
Malicious
Tags:
external_ip_lookup
YARA:
n/a
Link:
https://app.threat.zone/submission/d778054c-493e-4c49-ad76-198b8d8a94ae
Unpacked files
SH256 hash:
dc4f64ba228c5d301a8d64bd8c172b45779583375d3c1be3c83c3cd1c7d2a5e3
MD5 hash:
6435792d63be630506eb9eebbd1e3878
SHA1 hash:
37f7023b735b3f8cd65803bc704ad529f896ff4a
Detections:
XWorm
Create hunting rule
win_xworm_w0
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
win_xworm_simple_strings
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
win_xworm_bytestring
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/06378b5a-5d8f-4a81-a7a7-734e4ee8d5e0/
SH256 hash:
3ba52102a151d28ef0625d0bfca8f64d637bac18f6ba17abcda8b3a9323a9254
MD5 hash:
5e30d9ddc8e21d7a94a9e0d46c265fe0
SHA1 hash:
78853d5dba693da52a183f17082070a6089eb8ba
Link:
https://www.unpac.me/results/06378b5a-5d8f-4a81-a7a7-734e4ee8d5e0/
SH256 hash:
f1e8f6abdbcecde52a282a148c2625a052e4dc523407183bbd8ffcb2e2c601fb
MD5 hash:
c28ebb9943b4508ab0e86bbe32db39fb
SHA1 hash:
52fc8f84df8fe0309af46cf4ccd133f548c1263e
Link:
https://www.unpac.me/results/06378b5a-5d8f-4a81-a7a7-734e4ee8d5e0/
SH256 hash:
b871ed20d46a9be3a4aedb5facad152ab24289b6866076cb7ffc59721ca7525c
MD5 hash:
28db4677dcbbaa0a4c5adbc02c9da4f3
SHA1 hash:
e1f0199ed131a90e25204399e4e876da64ea3ba5
Link:
https://www.unpac.me/results/06378b5a-5d8f-4a81-a7a7-734e4ee8d5e0/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
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)

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

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