MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e99623a648141a2f03a7abcf5efa628bdf7fbe3760b1187048681f529cb8feaa. 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: 19


Intelligence 19 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e99623a648141a2f03a7abcf5efa628bdf7fbe3760b1187048681f529cb8feaa
SHA3-384 hash: 6a493797dd5940b92cf49c13105a651a66189860e2682ab3daacec30fd3ddee08a7df8ff472d5614bbfe6c0872c0bd65
SHA1 hash: 4883d41da4cd7f7a99abcabc2f28af9318e4ddfe
MD5 hash: b65ee208c26a96dea9847ca18f2f7f29
humanhash: moon-mississippi-mockingbird-butter
File name:INQURI 258Y26.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:984'064 bytes
First seen:2026-08-26 05:41:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'199 x AgentTesla, 20'365 x Formbook, 12'365 x SnakeKeylogger)
ssdeep 24576:WB+yIGfY9qvkf6K7D0QTRYCvSFh0Ls5HWRsSy:W0J9QGAQTRYCvSFeg1W+z
TLSH T1E32501294A178623F967BFF8DD70D2F097314EABA539F91C0EE84CEA76A72416C05311
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
dhash icon ccb2b2f2e2ba82c4 (1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
159
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/258d1f09-69d2-4b01-b5c1-704fe2334f7f/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-08-26 05:48:22 UTC
Tags:
formbook stealer xloader
Link:
https://app.any.run/tasks/86a0536b-d829-4701-84ec-5ab3fc0de6d9

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/82835/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed vbnet
Link:
https://www.filescan.io/uploads/6a8e7cb49dad6620e7d289aa/reports/95153832-3c04-4943-8f5b-243759d33cfa/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/e99623a648141a2f03a7abcf5efa628bdf7fbe3760b1187048681f529cb8feaa
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-25T17:02:00Z UTC
Last seen:
2026-08-28T01:52:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/e99623a648141a2f03a7abcf5efa628bdf7fbe3760b1187048681f529cb8feaa/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/2a733b41-ab6c-434a-85aa-766e6853af54
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1963822
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1963822 Sample: INQURI 258Y26.exe Startdate: 26/08/2026 Architecture: WINDOWS Score: 100 35 www.notemanager.xyz 2->35 37 www.inuseswitch.xyz 2->37 39 9 other IPs or domains 2->39 47 Suricata IDS alerts for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 55 12 other signatures 2->55 11 INQURI 258Y26.exe 4 2->11         started        signatures3 53 Performs DNS queries to domains with low reputation 37->53 process4 file5 33 C:\Users\user\...\INQURI 258Y26.exe.log, ASCII 11->33 dropped 67 Adds a directory exclusion to Windows Defender 11->67 69 Injects a PE file into a foreign processes 11->69 15 INQURI 258Y26.exe 11->15         started        18 powershell.exe 23 11->18         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 Queues an APC in another process (thread injection) 15->77 20 explorer.exe 64 4 15->20 injected 79 Loading BitLocker PowerShell Module 18->79 24 conhost.exe 18->24         started        process9 dnsIp10 41 www.lexcasino1.de 34.117.176.22, 49761, 80 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 20->41 43 www.ackexy.top 134.122.136.191, 80 CTGSERVERLIMITED-AS-APCTGServerLimitedHK Japan 20->43 45 4 other IPs or domains 20->45 57 System process connects to network (likely due to code injection or exploit) 20->57 26 msiexec.exe 12 20->26         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Unusual module load detection (module proxying) 26->63 65 Switches to a custom stack to bypass stack traces 26->65 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e99623a648141a2f03a7abcf5efa628bdf7fbe3760b1187048681f529cb8feaa
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.41 Win 32 Exe x86
Link:
https://app.malva.re/file/b65ee208c26a96dea9847ca18f2f7f29
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e99623a648141a2f03a7abcf5efa628bdf7fbe3760b1187048681f529cb8feaa/
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-08-26 05:42:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5glchjsicqnc6a5hvphv56tcrppx7prxmcyrq4cinapvfhfy72va._file
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Link:
https://reports.threatray.com/8359bd3a-04e1-4e1c-9723-da65a00264bf
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ge11 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260826-gd4rmagp3w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
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
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
e99623a648141a2f03a7abcf5efa628bdf7fbe3760b1187048681f529cb8feaa
MD5 hash:
b65ee208c26a96dea9847ca18f2f7f29
SHA1 hash:
4883d41da4cd7f7a99abcabc2f28af9318e4ddfe
Link:
https://www.unpac.me/results/ba18834f-4080-45cc-922a-fbc85e936293/
SH256 hash:
95aa56043ce630cd5379b8d56cf8040b206d9858efa89d38a31874f27387e500
MD5 hash:
8dcb38efc32b85ed7c03cf41abb9de7c
SHA1 hash:
4e0efa6f6b9e91da6502c7b6ca6449ce7c93aafa
Link:
https://www.unpac.me/results/ba18834f-4080-45cc-922a-fbc85e936293/
SH256 hash:
5f3db124ab721755bf385324f96a0946d3258f1ad9b9d260f267758b71c18617
MD5 hash:
a02f2b8564d775cb54abecbd85e18e05
SHA1 hash:
d9480ac0fa88d5c3daaed43c90c2a6bb81439c3a
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/ba18834f-4080-45cc-922a-fbc85e936293/
SH256 hash:
18fb94f4d9e70e553dfda121cc1b0ad2adc832924f0295e1fac4ae4660e12615
MD5 hash:
07038afc6fbd0c3195f2e84990df0c80
SHA1 hash:
35654a22428a1931884f38bea25fc76267ea27bf
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/ba18834f-4080-45cc-922a-fbc85e936293/
Parent samples :
c2950027214694211b93f45aff96f7eeb0b46c5ce15235a9775b50597c565416
3e11f7bd7b21eaa465fab6079458db678dfbe7099e9f2023c1f7f0c912e53d94
e99623a648141a2f03a7abcf5efa628bdf7fbe3760b1187048681f529cb8feaa
a0f98f3cc53d1a6a7ad0d9c2df1de1ea370d97dd8af04230d9bb7fb2f76d705a
cc9b6a5d4967278cca9da79ac7a99501d847d1da60d055409abffeadfb4ef761
94a33fc48ecb504091be4ab6c64cb3b828ac0efe1c9449c8ee952774de38b44f
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e99623a64814/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e99623a648141a2f03a7abcf5efa628bdf7fbe3760b1187048681f529cb8feaa

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/82835/

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