MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 223082d8fb6188b357e833ec5abba36bde4e371bd3a8eac2a2e2511c70358bdf. 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: 13


Intelligence 13 IOCs YARA 16 File information Comments

SHA256 hash: 223082d8fb6188b357e833ec5abba36bde4e371bd3a8eac2a2e2511c70358bdf
SHA3-384 hash: 6e430b9a502af9ccfeb24724790376abd50105e5cb3b0cf48dc875b0d8f004f294dc1e7770315b6b87fc01c48ac203d6
SHA1 hash: c1b483ac164cc5c6967fb741b389145e697e44a1
MD5 hash: 6e579b5b23c9c2ba596e4cd63641ec8e
humanhash: utah-floor-violet-burger
File name:RFQ No. 10542026..exe
Download: download sample
Signature Formbook
File size:396'128 bytes
First seen:2026-08-13 05:39:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f4639a0b3116c2cfc71144b88a929cfd (142 x GuLoader, 57 x Formbook, 44 x VIPKeylogger)
ssdeep 6144:FXFKo5ClMKn912RmsFhHVPulTHe5LL45tOZm7I9gw7dlLta:FXE2dHVPut+hEDOZm7I9h
TLSH T1CD849E14A785C85DC29016BA5A339F9914BCAE017A5DCEA362D07DBC24B4FF198CE1CF
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 9200d496a292d4c4 (2 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
146
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
GuLoader NSIS
Details
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-08-13 05:51:06 UTC
Tags:
n/a

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

Behaviour
Creating a window
Searching for the window
Creating a file
Creating a file in the %temp% directory
Delayed reading of the file
Deleting a recently created file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
downloader installer installer microsoft_visual_cc nsis signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-12T22:24:00Z UTC
Last seen:
2026-08-15T03:25:00Z UTC
Hits:
~1000
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious PE / MSI digital signature
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
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 submitted file
Performs DNS queries to domains with low reputation
Queries Google from non browser process on port 80
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
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 FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1957276 Sample: RFQ No. 10542026..exe Startdate: 13/08/2026 Architecture: WINDOWS Score: 100 33 www.mobilik.xyz 2->33 35 www.darkriver.xyz 2->35 37 14 other IPs or domains 2->37 49 Suricata IDS alerts for network traffic 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for submitted file 2->53 57 7 other signatures 2->57 10 RFQ No. 10542026..exe 30 2->10         started        signatures3 55 Performs DNS queries to domains with low reputation 35->55 process4 file5 31 C:\Users\user\AppData\Local\...\System.dll, PE32 10->31 dropped 13 RFQ No. 10542026..exe 6 10->13         started        17 RFQ No. 10542026..exe 10->17         started        process6 dnsIp7 45 drive.usercontent.google.com 142.250.65.65, 443, 49712 GOOGLE-GoogleLLCUS United States 13->45 47 drive.google.com 142.250.68.206, 443, 49711 GOOGLE-GoogleLLCUS United States 13->47 67 Modifies the context of a thread in another process (thread injection) 13->67 69 Maps a DLL or memory area into another process 13->69 71 Queues an APC in another process (thread injection) 13->71 73 Found direct / indirect Syscall (likely to bypass EDR) 13->73 19 SxnVghlKR.exe 13->19 injected 21 RFQ No. 10542026..exe 13->21         started        signatures8 process9 process10 23 write.exe 13 19->23         started        signatures11 59 Tries to steal Mail credentials (via file / registry access) 23->59 61 Tries to harvest and steal browser information (history, passwords, etc) 23->61 63 Modifies the context of a thread in another process (thread injection) 23->63 65 3 other signatures 23->65 26 pIfZmKDiCGa.exe 23->26 injected 29 firefox.exe 23->29         started        process12 dnsIp13 39 www.darkriver.xyz 162.0.213.215, 49734, 49735, 49736 NAMECHEAP-NET-NamecheapIncUS United States 26->39 41 www.deskhab.com 62.171.148.86, 49723, 49724, 49725 CONTABODE United Kingdom 26->41 43 7 other IPs or domains 26->43
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Verdict:
malicious
Label(s):
CloudEyE
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Loads dropped DLL
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
223082d8fb6188b357e833ec5abba36bde4e371bd3a8eac2a2e2511c70358bdf
MD5 hash:
6e579b5b23c9c2ba596e4cd63641ec8e
SHA1 hash:
c1b483ac164cc5c6967fb741b389145e697e44a1
SH256 hash:
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
MD5 hash:
4add245d4ba34b04f213409bfe504c07
SHA1 hash:
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
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:DebuggerCheck__API
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:Detect_all_IPv6_variants
Author:Bierchermuesli
Description:Generic IPv6 catcher
Rule name:Detect_NSIS_Nullsoft_Installer
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:FormhookB
Author:kevoreilly
Description:Formbook Anti-hook Bypass
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:NSIS
Author:kevoreilly
Description:NSIS Integrity Check function
Rule name:pe_detect_tls_callbacks
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Author:vietdx.mb
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:Win_FakeInstaller_PythonShellcodeLoader_Crepectl_2026
Author:SixHands
Description:Detects the analyzed fake installer sample using .key config, XOR key, and Python/fiber shellcode loader traits

File information


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

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