Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00018706069b971…

MALICIOUS

PDF

39.6 KB Created: 2020-08-19 04:30:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19e4ff21bd4031caa90643abeb3b1333 SHA-1: 67e052813dc5eeda1c0563670e938485626ced8e SHA-256: e00018706069b97147ceba87061a445d437465188e6494e09015bf650b0ebcd4
152 Risk Score

Malware Insights

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

The PDF contains a deceptive lure related to a 'Hyderabad weather report' and includes a link to a known malicious redirector, ttraff.com. The document also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.com/pify?keyword=hyderabad+weather+report+yesterday
    • http://files.rsdliteracytools.com/uploads/1/3/1/6/131607805/gigalitu_dokepuna_jekitav.pdf
    • http://files.thedepontes.com/uploads/1/3/1/6/131637640/rasusafofaxix-fezokiwufanenib-jisin-sedosel.pdf
    • http://files.bresumbrella.org/uploads/1/3/1/4/131406275/mokeramaketiwaroveb.pdf
    • http://files.theconsummateathlete.tssathletics.com/uploads/1/3/1/4/131483281/2804030.pdf
    • https://cdn.shopify.com/s/files/1/0429/0953/2323/files/7567131534.pdf
    • https://cdn.shopify.com/s/files/1/0431/3822/0181/files/15869779581.pdf
    • https://cdn.shopify.com/s/files/1/0429/9610/5375/files/xerapegovu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0905/6666/files/nafonekifi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/difference_between_plant_virus_and_animal_virus.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5451/files/52795559318.pdf
    • https://cdn.shopify.com/s/files/1/0431/9284/4448/files/jesaper.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/abacateiro_po.pdf
    • https://cdn.shopify.com/s/files/1/0431/2236/0469/files/41203972459.pdf
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/8313148957.pdf
    • https://cdn.shopify.com/s/files/1/0440/2066/2422/files/zonemavufiwiju.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/nutefimu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048fe.bin
d8f19f64293743fdb57fb1e5eb1f841a90dae7b72ebe58423522e4567cab785d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48FE 4944 bytes
font_01_sfnt_off000059e4.bin
3aa231ece26009f30e028d0f5be15c521a6165ab009ff75df8f937fa8e1aa7f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59E4 13224 bytes
font_02_sfnt_off0000838c.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x838C 4324 bytes

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