MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 203e8e937149c92740b6fc6293ee458aa431ff4c4ca81539e7b91adff659c7a5. 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: 18
| SHA256 hash: | 203e8e937149c92740b6fc6293ee458aa431ff4c4ca81539e7b91adff659c7a5 |
|---|---|
| SHA3-384 hash: | 29943fc59f5b1256b6ddb4dc940770c5f3c5409ce8ad53aacc6f432920c93f1cf30074ff3e76a005f6c07e2a0e56b973 |
| SHA1 hash: | b2bb1521d75a3bafbca91790df739d8fae288026 |
| MD5 hash: | c350bcacbf085d7d857514b2b2864f4e |
| humanhash: | stream-ten-video-green |
| File name: | RFQSATPL25-PO7488545.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 914'432 bytes |
| First seen: | 2025-09-09 14:28:20 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 24576:gPX97gN5LykrwPitz+w5J0T9jA7AzHu1B2s:cX9ECiZx5K5GAzuf2 |
| Threatray | 987 similar samples on MalwareBazaar |
| TLSH | T1E515D05032A99D07E0B64AF546B1E2B10BB5AE59B966D2CF8DC23CCF79F2F410642707 |
| 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 |  aachum |
| Tags: | exe FormBook RFQ xloader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
394
Origin country :
ESVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
RFQSATPL25-PO7488545.exe
Verdict:
Malicious activity
Analysis date:
2025-09-09 14:32:56 UTC
Tags:
auto-sch-xml formbook xloader stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Verdict:
Malicious
Score:
97.4%
Tags:
krypt spawn msil
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Sending a custom TCP request
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
base64 bitmap lolbin msbuild obfuscated packed packed reconnaissance regsvcs rezer0 roboski schtasks stego vbc zero
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-08T23:18:00Z UTC
Last seen:
2025-09-08T23:18:00Z UTC
Hits:
~100
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.19 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2025-09-09 02:31:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
41
AV detection:
23 of 38 (60.53%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
unc_loader_037
formbook
Similar samples:
+ 977 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery execution persistence
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
203e8e937149c92740b6fc6293ee458aa431ff4c4ca81539e7b91adff659c7a5
MD5 hash:
c350bcacbf085d7d857514b2b2864f4e
SHA1 hash:
b2bb1521d75a3bafbca91790df739d8fae288026
SH256 hash:
bfd9e784b16c080df91c5019b42a50655c4fefb46bf761f5f19e0b686643c5bb
MD5 hash:
64f04cb0f4a616ad6227723ddec4a13c
SHA1 hash:
12dedd0357cfccb9ef03a62f35b9bf519fe8868a
SH256 hash:
3e674b562fe0906e2cd4769ba39466254cfeafb473d8900000dd42d47b5719bb
MD5 hash:
506336e740ccff4d4f5d5bc03bf83c0b
SHA1 hash:
43e9121ca476f98b0e629bca933eb9ebee10fe31
SH256 hash:
f5c10e49d27eea7e6abbee91705599dab9165ddf8e609c87055d6d92dfd6777e
MD5 hash:
c11aac49e61d14a37b705060ad679846
SHA1 hash:
f6c1febaf4ec9d3dd16b2b6c9fbddfe471428abe
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
657e42dabf0cbca0300bd30f493ff1ebe87d2c847f6cfeb67d87c7e018e00a88
MD5 hash:
08e190a81b09610e20e70da9e244712a
SHA1 hash:
036680a69f5aaa89ff29f79aac65d80268c09e9c
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | CP_AllMal_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication |
| Rule name: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__GlobalFlags |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerHiding__Active |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerHiding__Thread |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | dgaagas |
|---|---|
| Author: | Harshit |
| Description: | Uses certutil.exe to download a file named test.txt |
| Rule name: | Formbook |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Payload |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
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