MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cbd4df99128d620e410e2698704df341cca76027487e61dbea615fde5ffb5360. 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 15 File information Comments
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SHA256 hash: cbd4df99128d620e410e2698704df341cca76027487e61dbea615fde5ffb5360
SHA3-384 hash: 92811a1f1814ccab1cba05fc11c6f55c3b55644daa8fa9eeeb757a299da32cf5690c3a504db89a82f702ec8119d09200
SHA1 hash: 6e6922e0a4dc0413065dfb430f950fd3c2db08c1
MD5 hash: dbf01e6410f95132577028db80aba175
humanhash: oxygen-low-nuts-nitrogen
File name:pappy.ps1
Download: download sample
Signature Formbook
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File size:452'048 bytes
First seen:2025-01-30 12:38:10 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 12288:fx/ViitfDlkoQSw3dH5Co7C1bgzZOzTnjs:fxNi86dZv7gbFzTI
Threatray 2 similar samples on MalwareBazaar
TLSH T1B6A4EF3188647A2F8EEF1F9771522FC73C3A157BCE942058A54F68B85E243292877F64
Magika powershell
Reporter TeamDreier
Tags:FormBook ps1

Intelligence

File Origin
# of uploads :
1
# of downloads :
124
Origin country :
DK DK
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Generic-EXE.UNOFFICIAL
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SecuriteInfo.com.PUA.Base64EXE-2.UNOFFICIAL
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Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679b73be29ae628cf42b9e9f
Tags:
virus shell spawn
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
confuserex dropper obfuscated obfuscated packed packed
Link:
https://www.filescan.io/uploads/679b72ee72686c0cee2e4e99/reports/b0c482cb-cda4-48b3-9282-cfc8b310b8f9/overview
Verdict:
Malicious
Labled as:
PowerShell/TrojanDropper.Agent
Link:
https://www.hybrid-analysis.com/sample/cbd4df99128d620e410e2698704df341cca76027487e61dbea615fde5ffb5360
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1603028
Signature
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
Machine Learning detection for dropped file
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
PE file contains section with special chars
PE file has nameless sections
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: 1603028 Sample: pappy.ps1 Startdate: 30/01/2025 Architecture: WINDOWS Score: 100 37 www.uarsg.xyz 2->37 39 www.l51127.xyz 2->39 41 19 other IPs or domains 2->41 49 Suricata IDS alerts for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 57 5 other signatures 2->57 11 powershell.exe 16 2->11         started        signatures3 55 Performs DNS queries to domains with low reputation 39->55 process4 file5 35 C:\Users\user\AppData\Local\Temp\x.exe, PE32 11->35 dropped 71 Suspicious execution chain found 11->71 73 Found suspicious powershell code related to unpacking or dynamic code loading 11->73 75 Powershell drops PE file 11->75 15 x.exe 3 11->15         started        18 conhost.exe 11->18         started        signatures6 process7 signatures8 79 Antivirus detection for dropped file 15->79 81 Multi AV Scanner detection for dropped file 15->81 83 Machine Learning detection for dropped file 15->83 85 3 other signatures 15->85 20 RegAsm.exe 15->20         started        process9 signatures10 59 Maps a DLL or memory area into another process 20->59 23 kbY8Tc309zK2te.exe 20->23 injected process11 signatures12 61 Found direct / indirect Syscall (likely to bypass EDR) 23->61 26 clip.exe 13 23->26         started        process13 signatures14 63 Tries to steal Mail credentials (via file / registry access) 26->63 65 Tries to harvest and steal browser information (history, passwords, etc) 26->65 67 Modifies the context of a thread in another process (thread injection) 26->67 69 3 other signatures 26->69 29 kbY8Tc309zK2te.exe 26->29 injected 33 firefox.exe 26->33         started        process15 dnsIp16 43 an05-prod-x.cdn-ng.net 103.42.144.142, 50029, 50030, 50031 WSN-TW-NET-ASWorldstarNetworkTW Taiwan; Republic of China (ROC) 29->43 45 www.svapo-discount.net 81.88.63.46, 49796, 80 REGISTER-ASIT Italy 29->45 47 10 other IPs or domains 29->47 77 Found direct / indirect Syscall (likely to bypass EDR) 29->77 signatures17
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/cbd4df99128d620e410e2698704df341cca76027487e61dbea615fde5ffb5360
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cbd4df99128d620e410e2698704df341cca76027487e61dbea615fde5ffb5360/
Threat name:
Script-PowerShell.Trojan.Boxter
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Status:
Malicious
First seen:
2025-01-29 09:14:24 UTC
File Type:
Text
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zpkn7gisrvra4qioe2mhatptihgkoybhjb7gdw7kmfp54x73knqa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
bcb69610580105b1844ae2ad84cade10c2117edfabf7fb22e3861bea798911a9
Formbook
error
Formbook
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250130-pvlw5s1mdw/
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.

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
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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:Formbook
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Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
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Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
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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.

Malspam

Formbook

PowerShell (PS) ps1 cbd4df99128d620e410e2698704df341cca76027487e61dbea615fde5ffb5360

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
URLhaus
https://urlhaus.abuse.ch/url/3418689/

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