Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee58502572288e41…

MALICIOUS

PDF

100.0 KB Created: 2020-08-25 04:24:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0be1ca8eea3ef84839705c87e2a11b1 SHA-1: 44eebb47221fd2ec88d70dc1f5d85d69de61e948 SHA-256: ee58502572288e41dda850d34ad9de5bdfb51b6d91b5136d340dbd312ea5fb06
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to 'ttraff.ru' as a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves luring users to a malicious site via a deceptive link.

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=dreamer+ro+guide+for+newbie In PDF document text
    • http://kemukuv.southafricanmi.com/uploads/1/3/2/6/132682787/nizagerozabusek.pdfIn PDF document text
    • http://files.math2impact.org/uploads/1/3/1/6/131606123/fa0725139bf.pdfIn PDF document text
    • http://sebokano.westernfamilyfarm.com/uploads/1/3/1/1/131164250/pitesukaginozex_maxuwunupej_wavofab.pdfIn PDF document text
    • http://zireguvu.yassvalleyk9.com/uploads/1/3/1/8/131857419/gojujukix-xawuxumofoj-tajugidojanivo.pdfIn PDF document text
    • http://www.opentle.orgIn 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/1/0433/6504/0282/files/19372302649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7791/7090/files/best_rpg_games_online_no.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/python_floor_division.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8428/files/2009_cadillac_escalade_performance_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4716/4826/files/crime_stoppers_report_drink_driving.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/fighter_aircraft_design_project.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8465/1423/files/jamafugixoseka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9845/5705/files/65379529501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/delinquency_report_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7759/9383/files/nand2tetris_project_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/69082968190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6423/7988/files/51153225301.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://www.gnu.org/licenses/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
stream_005_off00012f9c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x12F9C 14240 bytes
SHA-256: bacde6105362a96df2e5ac040c96616cc79475919e88ec5c7a170134dfe23075
font_00_sfnt_off00011dcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DCB 5248 bytes
SHA-256: 700740eb352f13e808e62cc448c2029ea37824bd9058dfe614a9598777640d08
font_02_sfnt_off000156d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x156D2 13680 bytes
SHA-256: b2061c4cec48283eef6afed5a7b855d5be35f738c159831fcf8c2f155c744581