Malicious PDF — malware analysis report

Static analysis result for SHA-256 d98f0a656cab7d31…

MALICIOUS

PDF

52.4 KB Created: 2020-08-13 21:56:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0dc9ffe4a78834317854117a94180c0 SHA-1: d1672d84b9358c753c867b2132b3cfd69ea4b6c9 SHA-256: d98f0a656cab7d31055dd86d53ecc39ed21f79a695bf6970bfb9704579f3b937
202 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=ts+eamcet+bipc+allotment+order+2019'. This indicates the document is designed to redirect users to malicious infrastructure. Additionally, a PDF link farm heuristic was triggered, with many links hosted on cdn.shopify.com, suggesting an attempt to obscure the final destination or spread the malicious content. The document body, though heavily obfuscated, contains the same malicious URL and benign-looking PDF links, reinforcing the lure.

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.cc/pify?keyword=ts+eamcet+bipc+allotment+order+2019 In PDF document text
    • http://lodimal.lionscb.org/uploads/1/3/0/7/130738837/bifixupoxatumaleg.pdfIn PDF document text
    • http://files.backcountrywinery.com/uploads/1/3/1/3/131398184/vuzolakigiwabonufap.pdfIn PDF document text
    • http://files.jenkatz-buonincontro.com/uploads/1/3/1/3/131379099/tevib-judexosedu-dejosekapuva.pdfIn PDF document text
    • http://files.edhgs.com/uploads/1/3/1/4/131408529/lujaremokike_nezuki_derunelizaxeti_kelabij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/duxeladilaxisemubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5107/3174/files/how_to_download_aadhaar_card_without_otp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/98903181558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5274/4347/files/72219556399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7578/9215/files/pokemon_fire_red_walk_through_walls_cheat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9873/2696/files/complete_english_punctuation_rules_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8850/3203/files/35701506772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9685/1111/files/les_anticoagulants_oraux_directs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2530/0647/files/disotozuxukukesakumido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/lororuvuleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5319/5165/files/69613572653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2669/2761/files/sizobime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8350/5570/files/wexuzenup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/rogusururufunekavek.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D44 5576 bytes
SHA-256: 15baa11db7e64219b200fd8c95b2cf41e913acadc8ce59a1334ec6b4fbff7f59
font_01_sfnt_off0000900a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x900A 11084 bytes
SHA-256: 22fd521c1066433507fa02f5fb015af4c0e8d8f2bd307cd15a620a22d5894df4
font_02_sfnt_off0000b5b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5B1 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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