MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c. 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


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c
SHA3-384 hash: db251ed6cc6eb57eacd98d7b2b85730a82e2511bf1d260592402f6024a1b5d4d31991290e90189cc778f7b8aa4186892
SHA1 hash: e9a1d69a69b61881d7a86f4c9bbe54c6a7c10cdb
MD5 hash: 9c27eac2d178f884628ee6191354cec1
humanhash: beer-north-three-bulldog
File name:revised Our PO# PO00436030.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'207'296 bytes
First seen:2026-04-06 07:07:55 UTC
Last seen:2026-04-20 07:37:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 24576:kuiQGE3CYLyXMtz+enKXdELg2zgZwfpKlLFG6WBW/duEzSJJSHw:knQCYLyXMxJXgPZwfpKbes/FqUw
Threatray 1 similar samples on MalwareBazaar
TLSH T15445F145271AEF02C696DBF00D70E3B50BF62D845411D213CEF77EEBBA28B15A944A93
TrID 44.6% (.EXE) Win64 Executable (generic) (6522/11/2)
14.0% (.ICL) Windows Icons Library (generic) (2059/9)
13.8% (.EXE) OS/2 Executable (generic) (2029/13)
13.7% (.EXE) Generic Win/DOS Executable (2002/3)
13.6% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
192
Origin country :
HU HU
Vendor Threat Intelligence
Gathering data
Malware family:
n/a
ID:
1
File name:
revised Our PO# PO00436030.pdf.exe
Verdict:
Suspicious activity
Analysis date:
2026-04-06 07:09:00 UTC
Tags:
amsi-bypass
Link:
https://app.any.run/tasks/1b022ef4-2300-4471-a868-25d24a6c7b11

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/60570/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3505.15484.15279.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69d35bee66ab6d001dcf5d5c
Tags:
underscore virus shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching cmd.exe command interpreter
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-04-03T04:00:00Z UTC
Last seen:
2026-04-07T10:00:00Z UTC
Hits:
~100
Detections:
VHO:Trojan.Win32.Agent.gen PDM:Trojan.Win32.Generic Trojan.Win32.Agent.sb HEUR:Backdoor.MSIL.XWorm.gen
Link:
https://opentip.kaspersky.com/f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/2908697f-3dec-413c-bcee-602bf009c9da
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.46 Win 64 Exe x64
Link:
https://app.malva.re/file/9c27eac2d178f884628ee6191354cec1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c/
Verdict:
Malicious
Threat:
Backdoor.MSIL.XWorm
Link:
https://tip.neiki.dev/file/f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c
Threat name:
ByteCode-MSIL.Trojan.PhantomStealer
Create hunting rule
Status:
Malicious
First seen:
2026-04-03 10:13:47 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
6
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6n7irtfmcwumx4fnyvp7sfephpg3fzmqkh6yp7sfttz7aeuqd5oa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/260406-hydavafy5y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c
MD5 hash:
9c27eac2d178f884628ee6191354cec1
SHA1 hash:
e9a1d69a69b61881d7a86f4c9bbe54c6a7c10cdb
Link:
https://www.unpac.me/results/3945238a-8e8b-4006-b8bc-fbd04b2eb4d9/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f37e88ccac15/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.89
Link:
https://yomi.yoroi.company/submissions/f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c

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
Create hunting rule
Author:malware-lu
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table

File information

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

Malspam

Formbook

Executable exe f37e88ccac15a8cbf0adc55ff9148f3bcdb2e59051fd87fe459cf3f012901f5c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/60570/

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