Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cd887ad77b63c38…

MALICIOUS

PDF

52.9 KB Created: 2020-08-12 05:07:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5d41ebcc1e43088b4c789f67c688cf7 SHA-1: e22f935278fa999527fd0eeb5b9552a7cda35caf SHA-256: 2cd887ad77b63c38376064bcba905fa16a6c68a1bf21e63f7024d67fc91270aa
202 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a worksheet and includes the malicious URL. The presence of a link farm and a malicious redirector strongly suggests an attempt to lead the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/wb?keyword=12%20stages%20of%20the%20hero In PDF document text
    • http://files.jordansgeneralstore.ca/uploads/1/3/1/3/131380354/famomarinumexog_siveni_bedefur.pdfIn PDF document text
    • http://files.jessietrespeses.com/uploads/1/3/1/6/131606227/delezep.pdfIn PDF document text
    • http://files.washingtonpedic.com/uploads/1/3/1/3/131384121/zenaminuwezese.pdfIn PDF document text
    • https://ttraff.ru/wb?keyword=12%20stages%20of%20the%20hero's%20journey%20worksheetIn 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/1/0432/9809/5272/files/fusionner_deux_sans_logiciel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4337/2703/files/halo_wars_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/difurakumategorusebuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9874/3719/files/nuluvagagif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9439/2485/files/dibexevapitegebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/3354563466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jezimix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/jetupafewatagujan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/unicode_emoji_copy_and_paste.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5488/3231/files/27185898157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0741/files/60430226292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8448/8607/files/vocabulary_describing_people_s_appearance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4788/4702/files/bescherelle_anglais_vocabulaire.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://scripts.sil.org/OFLIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000090a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90A3 5456 bytes
SHA-256: 1b4a7e5a2cb6ba793ba9e5a5de7f7453ee3e35e6b903377c84a8f732396f2f1d
font_01_sfnt_off0000a357.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA357 10244 bytes
SHA-256: 31546269623cb7527c030efdd26e3064e6079646548161c45fe00432cb7c443f

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