MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816. 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


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816
SHA3-384 hash: 96f53cbaf941ba9111ccf9c2918415902b7c07a59fe7c2f64922d23d4cdf7330c03432069e717295b9d6031fa9d4c089
SHA1 hash: 8563948f0f4cb38f838efe8a7ae718d054f3e067
MD5 hash: ee9b7445284d3cf413093c7851133886
humanhash: bluebird-sweet-delta-purple
File name:8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816
Download: download sample
Signature Formbook
Create hunting rule
File size:678'912 bytes
First seen:2025-11-06 11:03:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'809 x AgentTesla, 19'728 x Formbook, 12'280 x SnakeKeylogger)
ssdeep 12288:kWf7iGdDnWU5tqr5AY4XVwOkqVTgUkFOovLRxdDFIa:kWf7nSU5+WY4XWt9vdHBIa
TLSH T1EEE401583B1EEF22E9A25BF10A70E37117B46E59A810D3164FEEBCD7706AF442948743
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
64
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
7gs1fQ3USs7kIsO.exe
Verdict:
Malicious activity
Analysis date:
2025-10-22 14:18:22 UTC
Tags:
formbook stealer
Link:
https://app.any.run/tasks/a88f8138-0f19-4d4f-b24b-0e3e30cd5162

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/35998/
Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=690c80b8ea0f3e915c2388d8
Tags:
remcos virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-21T06:11:00Z UTC
Last seen:
2025-11-08T06:19:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/01aa0861-ebb9-4e8a-a730-0147774a62fa
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.47 Win 32 Exe x86
Link:
https://app.malva.re/file/ee9b7445284d3cf413093c7851133886
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-10-21 12:15:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r4lyifif32de2ctve26ai7xdvpk4jamx6oqonaemwvbcsdiv5ala._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ned5 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/251106-m5tcvswkcq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6109a742-88e1-4ccd-bd1d-acf4d63209d3
Unpacked files
SH256 hash:
8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816
MD5 hash:
ee9b7445284d3cf413093c7851133886
SHA1 hash:
8563948f0f4cb38f838efe8a7ae718d054f3e067
Link:
https://www.unpac.me/results/bc5be032-dc6b-454f-927f-b34c4559093a/
SH256 hash:
9f2bdadb8926bf6157c7487e994ec28657f9415fd2fdf97a5ba82ba12e24046a
MD5 hash:
0e1119a6df48b550ad1353d136297ef3
SHA1 hash:
3f89b2297c1e0a29932eb25741a51538e005d565
Link:
https://www.unpac.me/results/bc5be032-dc6b-454f-927f-b34c4559093a/
SH256 hash:
865814436823aa24c3c19f17ab2f3b3e645b378045e857ae76322d64ad80fabf
MD5 hash:
77601416d83db52f0b4bb01cefa5dae1
SHA1 hash:
4a268be672e97a9d66e1e2fe7b33a4d4017a055d
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/bc5be032-dc6b-454f-927f-b34c4559093a/
SH256 hash:
298a31993853244d8ffa7f458aa904c3fc035e1e3b0505f3085d3b449e807c3b
MD5 hash:
946ca755e0e50b9c7644b1fb0a1f130b
SHA1 hash:
99baefb0480f4c02bdfcb47ba8062b18a096a556
Link:
https://www.unpac.me/results/bc5be032-dc6b-454f-927f-b34c4559093a/
SH256 hash:
bea2b3772f3b8d6080d73c4394e6d31c1b11439b3aa0757ee896e4b012a32071
MD5 hash:
1860bb45313d84653e9c2e56418477e6
SHA1 hash:
d0d2d21deed3616939c3a761b020fe056320a643
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/bc5be032-dc6b-454f-927f-b34c4559093a/
Parent samples :
8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816
3876d6ae2639323d982e7f0e5714130abc49086746534d46fe8a644455e58e9a
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8f17841505de/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.85
Link:
https://yomi.yoroi.company/submissions/8f17841505de864d0a7526bc047ee3abd5c48197f3a0e6808cb542290d15e816

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:NETexecutableMicrosoft
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.

Cape
Cape
https://www.capesandbox.com/analysis/35998/

Comments