PDF malware analysis — malicious · 3b78430fd43eda69

MALICIOUS

PDF

59.3 KB Created: 2020-08-23 02:57:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7e3873a0a2a3688c9a227fbdff840e01 SHA-1: 43f9799ff59148c2bfdfbe7fba83f0e394c7c02d SHA-256: 3b78430fd43eda691b14f8d29a7453773df3bdd3e341cab3d8c2963921329e6c

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains references to the redirector URL and appears to be designed to mimic educational content to entice clicks. The primary attack vector is likely social engineering via a malicious link, leading to further compromise.

Heuristics 3

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.
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=nuclear+chemistry+chapter+test+a+answers
- http://files.rmackson.com/uploads/1/3/1/4/131453188/sugazimako_woxemowijezod_lowowe_bataxalaledo.pdf
- http://mikotona.ecopdx.com/uploads/1/3/2/6/132681352/xobemexer.pdf
- https://cdn.shopify.com/s/files/1/0429/7408/5279/files/79408569362.pdf
- https://cdn.shopify.com/s/files/1/0437/3164/8661/files/credit_risk_management_free_download.pdf
- https://cdn.shopify.com/s/files/1/0429/7188/9817/files/xuxuxefafajamora.pdf
- https://cdn.shopify.com/s/files/1/0434/0950/6471/files/alien_skin_bokeh_2.pdf
- https://cdn.shopify.com/s/files/1/0430/0803/2922/files/95648706482.pdf
- https://cdn.shopify.com/s/files/1/0434/1517/5335/files/12239527261.pdf
- https://cdn.shopify.com/s/files/1/0429/7709/9935/files/biriyani_movie_telugu.pdf
- https://cdn.shopify.com/s/files/1/0435/5706/0769/files/veseborulovetobul.pdf
- https://cdn.shopify.com/s/files/1/0462/3889/2186/files/ministry_of_sound_clubbers_guide_2003.pdf
- https://cdn.shopify.com/s/files/1/0434/3191/9783/files/86222060507.pdf
- https://cdn.shopify.com/s/files/1/0461/4419/2675/files/borderlands_3_pc_performance_optimization.pdf
- https://cdn.shopify.com/s/files/1/0435/1688/7192/files/printing_press_company_profile.pdf
- https://cdn.shopify.com/s/files/1/0428/3269/1363/files/16141290105.pdf
- https://cdn.shopify.com/s/files/1/0429/9164/8929/files/lakomawarolavomidorese.pdf
- https://cdn.shopify.com/s/files/1/0431/4326/6458/files/xefepused.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000a883.bin` `f71b43b8237b9985565abca7fe83287388391cf4c90f094c94a73ecab5292a5f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA883	5336 bytes
`font_01_sfnt_off0000ba9d.bin` `bac641ae40267ca7e752cbb664765ee0aa9605f6bbce33175057d122b4b7dead`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBA9D	10964 bytes

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