MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63f8e09f34374d2373b17698d75adc45934ad66bc3c23149cf0b3d0627a40d16. 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: 10


Intelligence 10 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 63f8e09f34374d2373b17698d75adc45934ad66bc3c23149cf0b3d0627a40d16
SHA3-384 hash: 3f7a8b1e0ded270bcc2c741ae102e1f4265df96e8e9b56ccbec668286c09dbe048008c9cc1b1968d24c1b599e921e1c6
SHA1 hash: fa7df918ad17d3aa36625a673debba03400c68ff
MD5 hash: 9db7a6e07c5b90d8f3efc00b7c67bb0b
humanhash: michigan-east-butter-island
File name:STEPH.ps1
Download: download sample
Signature Formbook
Create hunting rule
File size:469'829 bytes
First seen:2025-03-21 19:49:20 UTC
Last seen:2025-03-22 10:44:14 UTC
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 12288:UOaBBA6Z+ozK2kn+6U7H8I8EmnZE2VRvkE:UpH3ZrzU4trmnZE6RsE
Threatray 6 similar samples on MalwareBazaar
TLSH T166A4D0318908B82FCFEF1F4679102FD27C79257BCE650149A58F55B86A68238287BF74
Magika powershell
Reporter skocherhan
Tags:176-65-144-3 FormBook opendir ps1


Avatar
skocherhan
http://176.65.144.3/FILE/STEPH.ps1

Intelligence

File Origin
# of uploads :
2
# of downloads :
102
Origin country :
GB GB
Vendor Threat Intelligence
Gathering data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
confuserex dropper obfuscated obfuscated packed packed
Link:
https://www.filescan.io/uploads/67ddc2fda175d3177344482e/reports/3a27c4b7-ecab-4365-aafb-05aa88eced5c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic.76105696;Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/63f8e09f34374d2373b17698d75adc45934ad66bc3c23149cf0b3d0627a40d16
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1645495
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Found suspicious powershell code related to unpacking or dynamic code loading
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
Performs DNS queries to domains with low reputation
Powershell drops PE file
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Suspicious execution chain 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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1645495 Sample: STEPH.ps1 Startdate: 21/03/2025 Architecture: WINDOWS Score: 100 46 www.jicode.xyz 2->46 48 www.conmoro.xyz 2->48 50 15 other IPs or domains 2->50 64 Suricata IDS alerts for network traffic 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus detection for URL or domain 2->68 72 5 other signatures 2->72 11 powershell.exe 16 2->11         started        15 svchost.exe 1 1 2->15         started        signatures3 70 Performs DNS queries to domains with low reputation 48->70 process4 dnsIp5 38 C:\Users\user\AppData\Local\...\CZXZDTS.exe, PE32 11->38 dropped 78 Suspicious execution chain found 11->78 80 Found suspicious powershell code related to unpacking or dynamic code loading 11->80 82 Powershell drops PE file 11->82 18 CZXZDTS.exe 3 11->18         started        21 conhost.exe 11->21         started        52 127.0.0.1 unknown unknown 15->52 file6 signatures7 process8 signatures9 56 Antivirus detection for dropped file 18->56 58 Multi AV Scanner detection for dropped file 18->58 60 Writes to foreign memory regions 18->60 62 2 other signatures 18->62 23 RegAsm.exe 18->23         started        process10 signatures11 74 Maps a DLL or memory area into another process 23->74 26 vQB6d7hVAa.exe 23->26 injected process12 signatures13 76 Found direct / indirect Syscall (likely to bypass EDR) 26->76 29 write.exe 13 26->29         started        process14 signatures15 84 Tries to steal Mail credentials (via file / registry access) 29->84 86 Tries to harvest and steal browser information (history, passwords, etc) 29->86 88 Modifies the context of a thread in another process (thread injection) 29->88 90 3 other signatures 29->90 32 vQB6d7hVAa.exe 29->32 injected 36 firefox.exe 29->36         started        process16 dnsIp17 40 aiherobots.org 84.32.84.32, 49711, 49712, 49713 NTT-LT-ASLT Lithuania 32->40 42 www.thray.website 209.74.79.41, 49723, 49724, 49725 MULTIBAND-NEWHOPEUS United States 32->42 44 8 other IPs or domains 32->44 54 Found direct / indirect Syscall (likely to bypass EDR) 32->54 signatures18
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/63f8e09f34374d2373b17698d75adc45934ad66bc3c23149cf0b3d0627a40d16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/63f8e09f34374d2373b17698d75adc45934ad66bc3c23149cf0b3d0627a40d16/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-03-20 17:30:28 UTC
File Type:
Text
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mp4obhzug5gsg45ro2mnoww4iwjuvvtlypbdcsopbm6qmj5ebula._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2e170164eaa1935671b01a87ae8a9fa6976aadc3e833dcb7cf0ae6fffb47f764
Formbook
63f8e09f34374d2373b17698d75adc45934ad66bc3c23149cf0b3d0627a40d16
Formbook
793731d2047f46e078d638a7c967e458c0d0ff5f26ff12b4c4839c4b16a4537f
Formbook
7dcda246a493b8ee619f6e43539bf3d2613ae39404cbfde0abdc27f7e3b676c9
Formbook
df49df4badd7aa8c147fca2b192572597c405e86dce44aab992fe40b0ebaddff
Formbook
error
Formbook
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250321-ykakss1nz6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Executes dropped EXE
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/63f8e09f34374d2373b17698d75adc45934ad66bc3c23149cf0b3d0627a40d16

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__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:SUSP_PS1_FromBase64String_Content_Indicator_RID3714
Create hunting rule
Author:Florian Roth
Description:Detects suspicious base64 encoded PowerShell expressions
Reference:https://gist.github.com/Neo23x0/6af876ee72b51676c82a2db8d2cd3639
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Web download

Formbook

PowerShell (PS) ps1 63f8e09f34374d2373b17698d75adc45934ad66bc3c23149cf0b3d0627a40d16

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3485076/
  
Delivery method
Distributed via web download

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