Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd6d141a82f6e437…

MALICIOUS

PDF

173.7 KB Created: 2021-06-28 09:32:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: 1023d8bf2003b63506d6963673b2d060 SHA-1: 611347f1ddb2c31413dff73f54286b08285cbf81 SHA-256: bd6d141a82f6e4375cfde6743201d6d5ccddeac72ddb8abbb4a4d3961feda964
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document exhibits multiple indicators of malicious activity, including a high ML classification score and ClamAV detection as a phishing trojan. The heuristics indicate the document contains a payment redirection lure, suggesting a business email compromise attempt. Several URLs point to compromised CMS upload directories, likely serving as download locations for further payloads or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

Heuristics 10

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160aa7b50a6c27---duxezegotaverefepivoz.pdf In PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/5c7d5fd3d497bc0c9209d3a1d778a511/vufinofexadipar.pdfIn PDF document text
    • http://ahkjt.com/upfile/file/35242221252.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/klpk918q5qp99ef6u7eha3qdo1/zenunos.pdfIn PDF document text
    • https://saam.vn/images/content/file/11215997900.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16080288a093bc---75096627386.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8b6671e67---zakejiwumajagututazexu.pdfIn PDF document text
    • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/g8pbf4qqirs9odpq50rpjbop8m/74341334588.pdfIn PDF document text
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/nad4bpgo9346nc2f9k91emmako/31860352651.pdfIn PDF document text
    • https://printjet.pl/pliki_user/File/94765574859.pdfIn PDF document text
    • https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/qbo73l2fgmu9o88k50k8bpged2/wawurevoxonawi.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609fa4918590a---betigixomizetel.pdfIn PDF document text
    • http://ipmarketing.net/userfiles/file/16567695925.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607581dea2a8b---86022713790.pdfIn PDF document text
    • http://kirilmazbardak.com/userfiles/file/80812292386.pdfIn PDF document text
    • http://xn--xhq021fvrwdth.com/d/files/33066492637.pdfIn PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a8718f02549---92982507940.pdfIn PDF document text
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c37e216511---ladikogasok.pdfIn PDF document text
    • http://thesetnews.com/images/fckeditor/file/25234971025.pdfIn PDF document text
    • https://anpheatingandac.com/nbloom/fckuploads/file/30791289475.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075bf5df2ebf---dazitijivobonuzatojasu.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160abbe3d483e6---zegazanageju.pdfPDF link annotation
    • https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/jne6c9al313lp1aqmuhq50u0n9/jikujewanibosiride.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b247ade4110---1966243454.pdfIn PDF document text
    • http://leakefamilyreunion.com/clients/63964/File/53145085463.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=online+banking+project+pdfPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x246FA 18464 bytes
SHA-256: 32416e44e66ae5822f22fc542327811544107eaf7257fb8bc28f626defec5268
font_01_sfnt_off0002779e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2779E 11012 bytes
SHA-256: f71b23f44b90feadffaf2c1a83a750c65ce57ec395d7f1cecaf142c8f0ae3335
font_02_sfnt_off000290f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x290F0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.