MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 320a63cee8599bbc338ea723cca731a411e34b4a3d6d90ad25a7266f0db75c38. 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

SHA256 hash: 320a63cee8599bbc338ea723cca731a411e34b4a3d6d90ad25a7266f0db75c38
SHA3-384 hash: cee0e79bf33f382ecf5d0b3b672acf3ef720fb178c3b79bb4042851d0d525bc83f14a4861e37737964753f2a9d51a4d1
SHA1 hash: c977bcc05a6bc95f37bbe978331f5f8e95b51546
MD5 hash: 6e5585270e20bf3421497993c28e016d
humanhash: alaska-sink-north-beryllium
File name:MXjOtVrU067TrOT.exe
Download: download sample
Signature Formbook
File size:1'079'808 bytes
First seen:2026-08-04 06:11:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'131 x AgentTesla, 20'159 x Formbook, 12'362 x SnakeKeylogger)
ssdeep 24576:BD5mIiJR+zaVhikRack0U4ldhEOfToo80CIFwfiZ:wR+zaHiH3uKKdCCwq
TLSH T189350228AA6DDF02C49557F00676F6B607782DADE520D3479EF5FDEB3825F492808283
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
156
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
guloader
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-08-04 06:32:31 UTC
Tags:
auto-reg guloader loader formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-03T06:15:00Z UTC
Last seen:
2026-08-06T04:08:00Z UTC
Hits:
~1000
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Binary is likely a compiled AutoIt script file
Bypasses PowerShell execution policy
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious values (likely registry only malware)
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Suricata IDS alerts for network traffic
Suspicious powershell command line found
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)
Unusual module load detection (module proxying)
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1951669 Sample: MXjOtVrU067TrOT.exe Startdate: 04/08/2026 Architecture: WINDOWS Score: 100 47 www.zaruvoma.space 2->47 49 www.widetoeboxshoes.net 2->49 51 19 other IPs or domains 2->51 63 Suricata IDS alerts for network traffic 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Multi AV Scanner detection for dropped file 2->67 69 9 other signatures 2->69 10 MXjOtVrU067TrOT.exe 1 4 2->10         started        14 powershell.exe 12 2->14         started        16 powershell.exe 11 2->16         started        signatures3 process4 file5 39 C:\Users\user\AppData\...\sThXXbzVSf.exe, PE32 10->39 dropped 71 Creates autostart registry keys with suspicious values (likely registry only malware) 10->71 73 Creates an autostart registry key pointing to binary in C:\Windows 10->73 75 Injects a PE file into a foreign processes 10->75 77 2 other signatures 10->77 18 MXjOtVrU067TrOT.exe 10->18         started        21 MXjOtVrU067TrOT.exe 10->21         started        23 conhost.exe 14->23         started        25 conhost.exe 16->25         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 18->53 55 Maps a DLL or memory area into another process 18->55 57 Queues an APC in another process (thread injection) 18->57 59 Found direct / indirect Syscall (likely to bypass EDR) 18->59 27 dFeNbbclBYRA.exe 18->27 injected process9 signatures10 79 Binary is likely a compiled AutoIt script file 27->79 30 Utilman.exe 13 27->30         started        process11 signatures12 81 Tries to steal Mail credentials (via file / registry access) 30->81 83 Tries to harvest and steal browser information (history, passwords, etc) 30->83 85 Modifies the context of a thread in another process (thread injection) 30->85 87 3 other signatures 30->87 33 9NPRjxV0AY.exe 30->33 injected 37 firefox.exe 30->37         started        process13 dnsIp14 41 v9xf5gry.ikunzf.online 45.12.1.24, 49783, 49784, 49785 VIRTUALSYSTEMSUA Ukraine 33->41 43 www.suplae.shop 185.68.16.104, 49795, 49796, 49797 UKRAINE-ASUA Ukraine 33->43 45 10 other IPs or domains 33->45 61 Binary is likely a compiled AutoIt script file 33->61 signatures15
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.49 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.SnakeKeyLogger
Status:
Malicious
First seen:
2026-08-04 01:32:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook adware collection discovery execution persistence privilege_escalation rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
outlook_office_path
Event Triggered Execution: Accessibility Features
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
320a63cee8599bbc338ea723cca731a411e34b4a3d6d90ad25a7266f0db75c38
MD5 hash:
6e5585270e20bf3421497993c28e016d
SHA1 hash:
c977bcc05a6bc95f37bbe978331f5f8e95b51546
SH256 hash:
7993f3f39bf995971fca177dbfedab0008c1c5ad4b1a0197b760b46fbd744952
MD5 hash:
e6d1b71459b5f91ab361da3b12ea77a5
SHA1 hash:
0c474bd2506506b6d3a6876d74b63bb5ae1d3b64
SH256 hash:
233b333e5bb009470d46159f49f19ae45a034a94f4ad927d1084634ca0e2ca0f
MD5 hash:
f002c84373bf27bd57ab2b448321c3a2
SHA1 hash:
f4109a6b59512d7e74a04a55b9022330633dff31
SH256 hash:
463527c755e0281b693467bec21653bac36861511002996843cc8de136ba6cd4
MD5 hash:
449b2574b5afb0b211e50fb7c3bb79db
SHA1 hash:
7a86cbdf806d5fac03b26ccc95b6d8783f662816
Please note that we are no longer able to provide a coverage score for Virus Total.

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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Comments