Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba580a0648172b5…

MALICIOUS

PDF

67.8 KB Created: 2020-08-11 16:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06c28c68cab57736b1ad195d065dc98b SHA-1: 16b43c8aa6f6cdeb521254e81e541805d80161c9 SHA-256: 2ba580a0648172b5f2455c8b077298ed7cf449e16776cee09b9939a8ed02a936
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bacaan+surat+ar+rahman+lengkap+pdf'. The document body, though heavily obfuscated, contains this same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely to obscure the malicious redirector. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ttraff.cc/pify?keyword=bacaan+surat+ar+rahman+lengkap+pdf In PDF document text
    • http://files.thedeclutterbugco.com/uploads/1/3/1/6/131606260/dagubutowepude.pdfIn PDF document text
    • http://jikow.virginiaboyleart.com/uploads/1/3/1/3/131378814/gumisiganolote-kumugusifino-josom-zofoboxili.pdfIn PDF document text
    • http://files.northweststeamart-uk.com/uploads/1/3/1/4/131438111/lalogitememilazeke.pdfIn PDF document text
    • http://files.e3embedded.com/uploads/1/3/0/7/130738806/4751f.pdfIn PDF document text
    • http://files.ornimetal.com/uploads/1/3/1/8/131871605/9dca17cac1f8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/36155401216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4912/3993/files/tovonijanagineb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8907/5099/files/nikow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3129/6160/files/body_language_book_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3709/0211/files/87173336423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/lazevalanekun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8099/0366/files/pizexinudirojufijenif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/dilatomebexejijomutexalul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/75049318948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/4807/1331/files/75901429839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2644/7525/files/acuerdos_de_paz_de_la_habana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/52307809092.pdfIn PDF document text
    • 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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000c7d9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC7D9 31352 bytes
SHA-256: 9099e232a5e0583da62d25117a66b75bf60b9ed8fe2eff3c1cbfb1c69817a7a2
font_00_sfnt_off0000911e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x911E 5684 bytes
SHA-256: 2bfd4d38cea52fd5c86f1c63b1698888f20831faab8ad71e19d49866d9bc8ab3
font_01_sfnt_off0000a443.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA443 11164 bytes
SHA-256: c97e113b054ab04b1c6ef28757ba0458ce9d7ad4cb123f28a993e9d632f5cc8a