Malicious PDF — malware analysis report

Static analysis result for SHA-256 c247bfc4313085b1…

MALICIOUS

PDF

87.7 KB Created: 2020-08-21 22:52:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60d9d31fdf46dfad42c6b568a474a8be SHA-1: 646155459840ba7b0af753cf9861927c9f4ba061 SHA-256: c247bfc4313085b115159391526c419cbe79e7bf0d0b3b7c20ecd71f08962fe6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=addis+ababa+population+2018+pdf'. Additionally, it exhibits a PDF link farm characteristic, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0462/1929/6922/files/proforma_for_maintaining_child_care_leave_account.pdf'. The document body, though heavily obfuscated, contains text related to 'Addis ababa population 2018 pdf', suggesting a lure to disguise the malicious intent.

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.ru/pify?keyword=addis+ababa+population+2018+pdf In PDF document text
    • http://zabewebol.danklandsaga.com/uploads/1/3/1/4/131437252/jomovelejaloteri.pdfIn PDF document text
    • http://files.vanfiretrust.org/uploads/1/3/1/4/131453062/ae5cd5f.pdfIn PDF document text
    • http://files.owyheeoffroadchallenge.com/uploads/1/3/1/4/131483492/rarabebinewew-luzeza.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/1/0462/1929/6922/files/proforma_for_maintaining_child_care_leave_account.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8903/files/97610345426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2230/0822/files/14673662291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3446/8774/files/icse_full_form_in_insurance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6423/9014/files/xirojupusudir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/jawisubotexetoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/duwekivunubawewipapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7521/0133/files/most_secure_android_browser_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0311/7719/files/pitagetijeluvapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/vudab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/hero_bike_spare_parts_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5032/7454/files/62077706201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pifafesilepobusofamut.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF68 11192 bytes
SHA-256: ea3b4e509bdff6967ac7f24c5a6154adfae6f7154fb02677bc81d669dea0ab45
font_01_sfnt_off00010cf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CF8 5588 bytes
SHA-256: 60256f1330a599fef6cf184604da785a2635e39619c17372266b338be9c1969f
font_02_sfnt_off0001200b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1200B 15656 bytes
SHA-256: 5605c9c0579f26df3a7cbacbdbdd14667d31e2ab74b7ce392f365b97fbf19d13