MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d53c18f9c35747419cc289b1da6998457cb6ff5aeaddc1e5e474586b739b1c7. 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


Formbook


Vendor detections: 17


Intelligence 17 IOCs YARA 4 File information Comments
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SHA256 hash: 4d53c18f9c35747419cc289b1da6998457cb6ff5aeaddc1e5e474586b739b1c7
SHA3-384 hash: fdf5b3324dcda14c1347143e4b9e44caef1be1c6c50c361f27bb51c811603679bdb6672e095584d1f30d31c4a4813bd0
SHA1 hash: 0d6409e94e7c06be8dbf43c78c26d26f86a1454e
MD5 hash: fb3065fb8f756f9ccca0ef035ddb0f0d
humanhash: wolfram-saturn-sink-carpet
File name:R.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:9'943'040 bytes
First seen:2024-09-04 04:59:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 196608:elcTOVP3OfJ6XU6Eh8qqPImTyLGPKWNFcA5cqA4w:6cTOVUJ6a8TIoiWcWcqA3
Threatray 673 similar samples on MalwareBazaar
TLSH T168A601B92D0DCA98C34AD1B53F1187A28F910FAFC95C15D990ACFA3EF5AAC5398C41D4
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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
File icon (PE):PE icon
dhash icon 044c6227b39bb3bf (1 x Formbook)
Reporter lontze7
Tags:FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
107
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
R.exe
Verdict:
Malicious activity
Analysis date:
2024-09-04 05:01:30 UTC
Tags:
evasion discord pyinstaller python
Link:
https://app.any.run/tasks/2c9cd8cd-318d-457d-97c4-3acf864baedb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.MulDrop23.34226.11674.29935.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d7e957f3d7ccf99f8fdb4a
Tags:
Discovery Execution Infostealer Network Stealth Trojan Dropper
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Delayed reading of the file
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Launching cmd.exe command interpreter
Launching a process
Searching for the browser window
Sending a custom TCP request
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/66d7e9532d3bce34c7543260/reports/d404487e-89a2-443f-bc39-e3f7cde57a58/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/4d53c18f9c35747419cc289b1da6998457cb6ff5aeaddc1e5e474586b739b1c7
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:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3694d91b-7a53-435c-898b-cc025af2cd15
Result
Threat name:
AsyncRAT, XWorm
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1503895
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Found pyInstaller with non standard icon
Javascript uses Websockets
Loading BitLocker PowerShell Module
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
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: Cmd.EXE Missing Space Characters Execution Anomaly
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1503895 Sample: R.exe Startdate: 04/09/2024 Architecture: WINDOWS Score: 100 87 ip-api.com 2->87 89 Suricata IDS alerts for network traffic 2->89 91 Found malware configuration 2->91 93 Malicious sample detected (through community Yara rule) 2->93 95 18 other signatures 2->95 10 R.exe 4 2->10         started        signatures3 process4 file5 55 C:\Users\user\AppData\Local\Temp\wbspam.exe, PE32+ 10->55 dropped 57 C:\Users\user\AppData\...\VLC_Media.exe.exe, PE32 10->57 dropped 59 C:\Users\user\AppData\Local\...\R.exe.log, CSV 10->59 dropped 13 wbspam.exe 28 10->13         started        17 VLC_Media.exe.exe 14 6 10->17         started        process6 dnsIp7 61 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 13->61 dropped 63 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 13->63 dropped 65 C:\Users\user\AppData\Local\...\python312.dll, PE32+ 13->65 dropped 69 18 other malicious files 13->69 dropped 99 Multi AV Scanner detection for dropped file 13->99 101 Found pyInstaller with non standard icon 13->101 20 wbspam.exe 13 13->20         started        22 conhost.exe 13->22         started        77 ip-api.com 208.95.112.1, 49731, 80 TUT-ASUS United States 17->77 79 45.141.26.197 SPECTRAIPSpectraIPBVNL Netherlands 17->79 67 C:\Users\user\AppData\Roaming\VLC_Media.exe, PE32 17->67 dropped 103 Antivirus detection for dropped file 17->103 105 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 17->105 107 Protects its processes via BreakOnTermination flag 17->107 109 5 other signatures 17->109 24 powershell.exe 23 17->24         started        27 powershell.exe 17->27         started        29 powershell.exe 17->29         started        31 powershell.exe 17->31         started        file8 signatures9 process10 signatures11 33 chrome.exe 1 20->33         started        36 cmd.exe 1 20->36         started        38 cmd.exe 20->38         started        97 Loading BitLocker PowerShell Module 24->97 40 conhost.exe 24->40         started        42 conhost.exe 27->42         started        44 conhost.exe 29->44         started        46 conhost.exe 31->46         started        process12 dnsIp13 81 192.168.2.4, 443, 49731, 49732 unknown unknown 33->81 83 192.168.2.5 unknown unknown 33->83 85 239.255.255.250 unknown Reserved 33->85 48 chrome.exe 33->48         started        51 chrome.exe 33->51         started        53 chrome.exe 33->53         started        process14 dnsIp15 71 www.google.com 172.217.18.4, 443, 49745 GOOGLEUS United States 48->71 73 a.nel.cloudflare.com 35.190.80.1 GOOGLEUS United States 48->73 75 4 other IPs or domains 48->75
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4d53c18f9c35747419cc289b1da6998457cb6ff5aeaddc1e5e474586b739b1c7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4d53c18f9c35747419cc289b1da6998457cb6ff5aeaddc1e5e474586b739b1c7/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-09-03 02:25:09 UTC
AV detection:
26 of 38 (68.42%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jvj4dd44gv2higomfcnr3juzqrl4w37vv2w5yhs6i5cynnzzwhdq._file
Verdict:
malicious
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01de9d36bc78cf7cb9fa19cd3ac47d8028cb08dedf318ef4e85b696a8d837c38
Formbook
0c2e058f82341a8b2b4460cd0bdbf2ed9156295e5e9a64b68aa320b817f2fb1d
Formbook
2bd21cf977d4b6792c2170618fd428a4335b7bf8c909f0dd47ecc65aedf9cd9a
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a2bc5f647723f5af00feb34d1dd7bc73942207416f5a49425baceab8f251d473
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c0aace14aa0063bbe33249fd42bc296974a9bb41cae186e1cdd1c28cbe77973a
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d08f2dae436ff4721e146a253bf7e69d4b448ebf24d129668a85f40fc5e46981
Formbook
ddac3b2f0fa734edf2a07db0ceec19c3926b9423314e3138dc29a0568a1cdcd9
Formbook
fef94c84bc97a47f879457fbefcae24df62ebf1171358f22d83444a5e97eedec
Formbook
+ 663 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm discovery execution pyinstaller rat trojan
Link:
https://tria.ge/reports/240904-fmzzcswfqd/
Behaviour
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Browser Information Discovery
Detects Pyinstaller
Enumerates physical storage devices
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
45.141.26.197:7000
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7adf667e-6770-4508-9e59-0b4018905121
Unpacked files
SH256 hash:
44661d9d0df9aa2e03844719c9e6963a738e431c565f0983d309a0e113508d17
MD5 hash:
a9376f54dd83bf547f6188f8904ae3af
SHA1 hash:
85bb802b0ade5b2136c83e6217a2aaace3735edc
Detections:
XWorm
Create hunting rule
win_xworm_w0
Create hunting rule
Link:
https://www.unpac.me/results/aafd28df-754f-4aa3-b0ed-72d54f9447dd/
Parent samples :
4d53c18f9c35747419cc289b1da6998457cb6ff5aeaddc1e5e474586b739b1c7
0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d
SH256 hash:
4d53c18f9c35747419cc289b1da6998457cb6ff5aeaddc1e5e474586b739b1c7
MD5 hash:
fb3065fb8f756f9ccca0ef035ddb0f0d
SHA1 hash:
0d6409e94e7c06be8dbf43c78c26d26f86a1454e
Link:
https://www.unpac.me/results/aafd28df-754f-4aa3-b0ed-72d54f9447dd/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4d53c18f9c35/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4d53c18f9c35747419cc289b1da6998457cb6ff5aeaddc1e5e474586b739b1c7

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:Detect_Malicious_VBScript_Base64
Create hunting rule
Author:daniyyell
Description:Detects malicious VBScript patterns, including Base64 decoding, file operations, and PowerShell.
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 4d53c18f9c35747419cc289b1da6998457cb6ff5aeaddc1e5e474586b739b1c7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3155703/
  
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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