MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7657626481f9276d3ecd83ba73795bbb175af0c3738648bbb37613f8d52f0285. 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: 13


Intelligence 13 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7657626481f9276d3ecd83ba73795bbb175af0c3738648bbb37613f8d52f0285
SHA3-384 hash: 07c67ab26d085a659c178f1f6a133492ca3b8c810131fcf16c92e8b28afce627d9e5864d4a2636b9082683c6d3104173
SHA1 hash: f895ec47b1211d3e4dafda8c2b5e4a1c0f96e995
MD5 hash: eb489ea9f01d228bf1555d309bac5aa7
humanhash: beryllium-cardinal-leopard-georgia
File name:H-Output.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:240'128 bytes
First seen:2024-05-02 00:16:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'655 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:Nn0B7zMSuyiyi48xY2PK+EA5qajLgGpr:Nn6MYbxj++a
TLSH T17C344A1127E4C92BEA7F07B5E5B1121017B9F2479561EB8A38CC16FD6B233405A22B7F
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 1ZRR4H
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
400
Origin country :
CL CL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7657626481f9276d3ecd83ba73795bbb175af0c3738648bbb37613f8d52f0285.exe
Verdict:
Malicious activity
Analysis date:
2024-05-02 00:18:13 UTC
Tags:
evasion xworm
Link:
https://app.any.run/tasks/4b8cedaf-aa45-440c-b352-b6647322540e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilmamut-10007182-0
Create hunting rule

Win.Packed.Msilzilla-10008147-0
Create hunting rule

Win.Dropper.LokiBot-10010685-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Launching a service
Creating a process with a hidden window
Creating a file in the %temp% directory
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Running batch commands
Creating a file
Launching a process
Searching for the window
Creating a window
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm control evasive fingerprint fingerprint lolbin remote wscript
Link:
https://www.filescan.io/uploads/6632db7f8441a327526e1d33/reports/300ce7ad-9210-49b1-aef5-69fc4241a809/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/7657626481f9276d3ecd83ba73795bbb175af0c3738648bbb37613f8d52f0285
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/85554f54-8db4-4fd2-96b0-2efde346c20b
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1435057
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
Antivirus detection for URL or domain
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)
Drops executable to a common third party application directory
Found malware configuration
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 domain / URL
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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Generic Downloader
Yara detected UAC Bypass using CMSTP
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1435057 Sample: H-Output.exe Startdate: 02/05/2024 Architecture: WINDOWS Score: 100 46 ip-api.com 2->46 52 Multi AV Scanner detection for domain / URL 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 17 other signatures 2->58 8 H-Output.exe 14 7 2->8         started        13 firefox.exe 3 2->13         started        15 firefox.exe 1 2->15         started        signatures3 process4 dnsIp5 48 ip-api.com 208.95.112.1, 49730, 80 TUT-ASUS United States 8->48 44 C:\Users\user\AppData\Local\...\firefox.exe, PE32 8->44 dropped 60 Bypasses PowerShell execution policy 8->60 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->62 64 Adds a directory exclusion to Windows Defender 8->64 74 2 other signatures 8->74 17 powershell.exe 23 8->17         started        20 powershell.exe 23 8->20         started        22 cmd.exe 8->22         started        66 Protects its processes via BreakOnTermination flag 13->66 24 powershell.exe 13->24         started        26 powershell.exe 13->26         started        28 powershell.exe 13->28         started        68 Antivirus detection for dropped file 15->68 70 Multi AV Scanner detection for dropped file 15->70 72 Machine Learning detection for dropped file 15->72 file6 signatures7 process8 signatures9 50 Loading BitLocker PowerShell Module 17->50 30 conhost.exe 17->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        36 timeout.exe 22->36         started        38 conhost.exe 24->38         started        40 conhost.exe 26->40         started        42 conhost.exe 28->42         started        process10
Score:
89%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7657626481f9276d3ecd83ba73795bbb175af0c3738648bbb37613f8d52f0285
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7657626481f9276d3ecd83ba73795bbb175af0c3738648bbb37613f8d52f0285/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-05-01 18:43:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
29 of 37 (78.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ozlwezeb7etw2pwnqo5hg6k3xmlvv4gdoodero5toyj7rvjpakcq._file
Verdict:
malicious
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm persistence rat trojan
Link:
https://tria.ge/reports/240502-ak2saadd76/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Drops file in System32 directory
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Deletes itself
Drops startup file
Executes dropped EXE
Detect Xworm Payload
Xworm
Unpacked files
SH256 hash:
7657626481f9276d3ecd83ba73795bbb175af0c3738648bbb37613f8d52f0285
MD5 hash:
eb489ea9f01d228bf1555d309bac5aa7
SHA1 hash:
f895ec47b1211d3e4dafda8c2b5e4a1c0f96e995
Detections:
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCMD
Create hunting rule
Link:
https://www.unpac.me/results/4f4157da-7568-4789-a0d3-781897950adc/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7657626481f9/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/7657626481f9276d3ecd83ba73795bbb175af0c3738648bbb37613f8d52f0285

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCMD
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF
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: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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