MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e327efd4243601327f2dab0e3d9a5ef0426edaeb90f78964a6f699d49ff1bfa3. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e327efd4243601327f2dab0e3d9a5ef0426edaeb90f78964a6f699d49ff1bfa3
SHA3-384 hash: f8dbddeab0bbfbdf26327f57191b141c34716774579523d1768c9dcf6183fc0517997e8d3815a7a1f74b4c7620036fe1
SHA1 hash: 124dce3c6c50fe11bb82f5c3fc554f4fa6c24e0c
MD5 hash: d4e55f0a4098f603e78745dd76f662bb
humanhash: thirteen-zebra-nebraska-kansas
File name:REPOstartUp.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:262'656 bytes
First seen:2025-03-30 15:54:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 3072:jzpzpGqrRGJLCorbt4npyzDkZRV3AEHBAnpK37nXa8E00pQ7i9PsD74tyJhUgKjf:/GpZ1zIRV08sD9PG2PzaXhY
Threatray 38 similar samples on MalwareBazaar
TLSH T137447D4127E4C55FDABE53BAE4B123206778F14B9212EB4A748C26F96B63300592377F
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter BastianHein
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
932
Origin country :
CL CL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
REPOstartUp.exe
Verdict:
Malicious activity
Analysis date:
2025-03-29 23:02:48 UTC
Tags:
evasion remote xworm
Link:
https://app.any.run/tasks/51c4abd2-cd84-4590-8d83-73e0f175159a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e87c17cfd0a37f8309a42d
Tags:
agenttesla shell virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file in the %temp% directory
Running batch commands
Creating a file
Launching a process
Creating a window
DNS request
Connection attempt
Sending an HTTP GET request
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cmstp control fingerprint lolbin obfuscated reconnaissance remote vbnet
Link:
https://www.filescan.io/uploads/67e96964631830704a8b6809/reports/8046c9db-24a0-426d-abf8-7d3fe8e498fd/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/e327efd4243601327f2dab0e3d9a5ef0426edaeb90f78964a6f699d49ff1bfa3
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fdc310f1-1c24-4c9b-9d39-6841d90765c7
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1652205
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)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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
Sample uses string decryption to hide its real strings
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: System File Execution Location Anomaly
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected UAC Bypass using CMSTP
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1652205 Sample: REPOstartUp.exe Startdate: 30/03/2025 Architecture: WINDOWS Score: 100 52 ip-api.com 2->52 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus / Scanner detection for submitted sample 2->62 64 12 other signatures 2->64 8 dasHost.exe 14 3 2->8         started        12 REPOstartUp.exe 5 2->12         started        15 dasHost.exe 1 2->15         started        signatures3 process4 dnsIp5 54 ip-api.com 208.95.112.1, 49719, 80 TUT-ASUS United States 8->54 66 Protects its processes via BreakOnTermination flag 8->66 68 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->68 70 Adds a directory exclusion to Windows Defender 8->70 17 powershell.exe 8->17         started        20 powershell.exe 8->20         started        22 powershell.exe 8->22         started        24 powershell.exe 8->24         started        48 C:\Users\user\AppData\Roaming\dasHost.exe, PE32 12->48 dropped 50 C:\Users\user\AppData\...\REPOstartUp.exe.log, CSV 12->50 dropped 72 Bypasses PowerShell execution policy 12->72 26 powershell.exe 23 12->26         started        28 powershell.exe 23 12->28         started        30 cmd.exe 12->30         started        74 Antivirus detection for dropped file 15->74 76 Multi AV Scanner detection for dropped file 15->76 78 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 15->78 file6 signatures7 process8 signatures9 32 conhost.exe 17->32         started        34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        56 Loading BitLocker PowerShell Module 26->56 40 conhost.exe 26->40         started        42 conhost.exe 28->42         started        44 conhost.exe 30->44         started        46 timeout.exe 30->46         started        process10
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e327efd4243601327f2dab0e3d9a5ef0426edaeb90f78964a6f699d49ff1bfa3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e327efd4243601327f2dab0e3d9a5ef0426edaeb90f78964a6f699d49ff1bfa3/
Threat name:
ByteCode-MSIL.Trojan.Jalapeno
Create hunting rule
Status:
Malicious
First seen:
2025-03-29 23:02:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4mt67vbegyate7znvmhd3gs66bbg5wxlsd3yszfg62m5jh7rx6rq._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
3663d60f0c8125e46f3f4efb108d21fea6065f8c636e770d7efb26e66c2529a9
Formbook
5143fac9842c59bd0fc23fe2c253ff401c3e735d59a60ce9bb657784b545c2ab
Formbook
d22517dafccc940c38f7fc6004d215d9fa9a7a1da8f0c7f2b552be3bcfb94767
Formbook
d5ab98bd209db0ed18272fe616ea4b8be34fd13d36116d25793fa7aa6f8b33e3
Formbook
e327efd4243601327f2dab0e3d9a5ef0426edaeb90f78964a6f699d49ff1bfa3
Formbook
error
Formbook
+ 28 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm execution rat trojan
Link:
https://tria.ge/reports/250330-tcwqvatrw6/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Looks up external IP address via web service
Checks computer location settings
Deletes itself
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
82.23.183.50:8080
Verdict:
Malicious
Tags:
Win.Dropper.LokiBot-10010685-0
YARA:
n/a
Link:
https://app.threat.zone/submission/f869ff96-06eb-490d-960d-4e0a829bd78a
Unpacked files
SH256 hash:
e327efd4243601327f2dab0e3d9a5ef0426edaeb90f78964a6f699d49ff1bfa3
MD5 hash:
d4e55f0a4098f603e78745dd76f662bb
SHA1 hash:
124dce3c6c50fe11bb82f5c3fc554f4fa6c24e0c
Link:
https://www.unpac.me/results/46af4c64-9d70-4e7a-b55d-14c8bf3fbe02/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e327efd42436/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/e327efd4243601327f2dab0e3d9a5ef0426edaeb90f78964a6f699d49ff1bfa3

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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.

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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