MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 bfd9809a1fd4485f2590bb784d5e4ccc249f04b4e7211bc9728a0fe3c88f2b78. 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: 14
| SHA256 hash: | bfd9809a1fd4485f2590bb784d5e4ccc249f04b4e7211bc9728a0fe3c88f2b78 |
|---|---|
| SHA3-384 hash: | 4566b3817bd08412d351cae6f2370c332238e58aa48462e5ad2be50ea212e5baa3c81ddb716a92267413789d889a19c7 |
| SHA1 hash: | eb5daaacc2bf7a967c01743b130451cb5d0d92f3 |
| MD5 hash: | 0b934c7f639398836e62a945df8bb495 |
| humanhash: | nuts-uncle-carbon-ack |
| File name: | 1.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 80'384 bytes |
| First seen: | 2023-08-27 08:48:10 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 1536:11V7tVcoROxpY74VMqBV7FmI9Zjumbhlfc9cdP6lOlO1/mr10q0B:rV7Hd+pPdBd9HXbLAcUOlO1/01CB |
| Threatray | 177 similar samples on MalwareBazaar |
| TLSH | T129738D1877F98525E1FF6BB029F17352CA35F7636A03961F24C5029A1623E88CE817F6 |
| 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 |  petrovic |
| Tags: | exe FormBook Ransomware xworm |
Intelligence
File Origin
# of uploads :
1
# of downloads :
609
Origin country :
NOVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
crack.exe
Verdict:
Malicious activity
Analysis date:
2023-08-26 14:11:56 UTC
Tags:
xworm remote ransomware
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% directory
Creating a window
Enabling the 'hidden' option for recently created files
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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
anti-vm cmd explorer fingerprint keylogger lolbin schtasks
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
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
Verdict:
Malicious
Result
Threat name:
XWorm
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AsyncRAT
Status:
Malicious
First seen:
2023-08-27 08:49:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 167 additional samples on MalwareBazaar
Result
Malware family:
xworm
Score:
10/10
Tags:
family:xworm persistence rat trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Looks up external IP address via web service
Drops startup file
Executes dropped EXE
Xworm
Malware Config
C2 Extraction:
crax31.ddns.net:8080
Unpacked files
SH256 hash:
bfd9809a1fd4485f2590bb784d5e4ccc249f04b4e7211bc9728a0fe3c88f2b78
MD5 hash:
0b934c7f639398836e62a945df8bb495
SHA1 hash:
eb5daaacc2bf7a967c01743b130451cb5d0d92f3
Detections:
XWorm
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.99
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
| Rule name: | DebuggerCheck__RemoteAPI |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | Disable_Defender |
|---|---|
| Author: | iam-py-test |
| Description: | Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows executables referencing non-Windows User-Agents |
| Rule name: | MALWARE_Win_AsyncRAT |
|---|---|
| Author: | ditekSHen |
| Description: | Detects AsyncRAT |
| Rule name: | MALWARE_Win_XWorm |
|---|---|
| Author: | ditekSHen |
| Description: | Detects XWorm |
| Rule name: | Multifamily_RAT_Detection |
|---|---|
| Author: | Lucas Acha (http://www.lukeacha.com) |
| Description: | Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | SUSP_DOTNET_PE_List_AV |
|---|---|
| Author: | SECUINFRA Falcon Team |
| Description: | Detecs .NET Binary that lists installed AVs |
| Rule name: | win_delivery_check_g0 |
|---|
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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