Malicious PDF — malware analysis report

Static analysis result for SHA-256 69df40bd0f37ef7a…

MALICIOUS

PDF

85.9 KB Created: 2021-09-12 21:37:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 42ce0e785332e1b8eeabbf58857a30f6 SHA-1: 8a6112643300c45bb5778c4ae5417600ef92bf4b SHA-256: 69df40bd0f37ef7aab5a8a7f4c70bf9588542dd186b4ef282e61b2544ef29892
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. The presence of external URIs and IP literal addresses further supports the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136f0fb90cff---xujen.pdf In PDF document text
    • http://samurairamenbar.com/uploads/files/sudelafasepojafirixelina.pdfIn PDF document text
    • https://trinityautorepairs.com/uploads/files/36801190380.pdfIn PDF document text
    • https://geneolock.com/locktactyuma/userfiles/file/29978701701.pdfIn PDF document text
    • http://vladjurnalist.ru/archive/file/pelum.pdfIn PDF document text
    • http://bluebiz.kr/userData/board/file/60622994812.pdfIn PDF document text
    • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/d967183d28749f9845d714147ebcd899/48857054508.pdfIn PDF document text
    • http://spharma.ua/files/file/maxobe.pdfIn PDF document text
    • http://hemeringen.de/ckeditor_ablage/userfiles/files/bidifogabogonaru.pdfIn PDF document text
    • https://mancomunidadvaldizarbe.com/userfiles/files/gepozab.pdfIn PDF document text
    • http://185.33.116.145/~acus01/upload/files/susironevopiv.pdfPDF link annotation
    • https://mingyi-lock.com/data/file/userfiles/files/laramolem.pdfIn PDF document text
    • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a938f26a33---kujavupepaxezalilap.pdfIn PDF document text
    • http://cupta.org/userfiles/files/20210911174802.pdfIn PDF document text
    • http://rvhifi.cz/files/file/28931452789.pdfIn PDF document text
    • https://istanajp2.com/contents/files/disiledu.pdfIn PDF document text
    • https://posetili.ru/userfiles/file/fodokexonisofesebi.pdfIn PDF document text
    • http://italiangreyhound.pl/img1/userfiles/file/88461338444.pdfIn PDF document text
    • https://mygrind.ie/userfiles/file/48303584718.pdfIn PDF document text
    • http://yishiweb.com/upfiles/files/20210906_030901.pdfIn PDF document text
    • http://tunesistudio.eu/userfiles/files/foredajafogujajofuzitola.pdfIn PDF document text
    • https://manage4.realtourvision.com/rtv/ckfinder/userfiles/images/files/bunemewutusesex.pdfIn PDF document text
    • http://przychodnia-felinskiego.pl/uploads/editor/file/40947945970.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/62075085922.pdfIn PDF document text
    • http://xn----8sbemnkjd7bfu.xn--p1ai/design/img/upload/file/79082846698.pdfIn PDF document text
    • http://www.toptehnik.si/images/868727206.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=iphone+x+price+in+bangladesh+2020+unofficialPDF 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_off0000e361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE361 11336 bytes
SHA-256: edd4afa4eab2e985c3bb6906316a023caf2968043507dcd9f074e05d6a49d753
font_01_sfnt_off0000fd91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD91 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000115a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115A3 19660 bytes
SHA-256: 0a5eedff843afe4f7b3d09a014adad4a69e9b3ca2b17709e1c153b19a9e67a89

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