Malicious PDF — malware analysis report

Static analysis result for SHA-256 0600a4ce2f50ddb7…

MALICIOUS

PDF

48.2 KB Created: 2020-08-05 06:44:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a8eb90376fef92ed0c9c91175c44664 SHA-1: a8ed651df23a3d3b39468ff253778172e7f1df10 SHA-256: 0600a4ce2f50ddb7ee4a159b21e50284a7168ee7cc286aac50db57bc46e01635
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.com, which is part of an advance-fee scam lure. The document body, though obfuscated, contains text related to legal forms and a URL that likely leads to a malicious payload or further phishing content. The presence of numerous external PDF links further supports the link farm heuristic, indicating a malicious intent to distribute malicious content.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=durable+power+of+attorney+california+form+pdf
    • http://files.lovealaska.org/uploads/1/3/1/8/131871778/womomikafaxisuxapila.pdf
    • http://javomupo.jprestigeconsulting.com/uploads/1/3/0/7/130739204/lolajopilazom-deponejuz-lupuvupe-vubatix.pdf
    • http://files.thesoundingboard.com/uploads/1/3/1/3/131384468/530688.pdf
    • http://files.nejnamc.org/uploads/1/3/1/6/131607346/bujowadatasivo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0434/3015/0309/files/bifigoxedodakitutoxem.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/26439951675.pdf
    • https://cdn.shopify.com/s/files/1/0433/7994/9718/files/dilulajux.pdf
    • https://cdn.shopify.com/s/files/1/0437/7654/0834/files/22559868259.pdf
    • https://cdn.shopify.com/s/files/1/0429/1044/9830/files/82042823501.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/sidegize.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/46975586815.pdf
    • https://cdn.shopify.com/s/files/1/0431/1813/3405/files/49953596116.pdf
    • https://cdn.shopify.com/s/files/1/0428/0408/4899/files/94531451239.pdf
    • https://cdn.shopify.com/s/files/1/0428/0067/7031/files/laxuwuzovetupaja.pdf
    • https://cdn.shopify.com/s/files/1/0430/3467/3301/files/72631041088.pdf
    • https://cdn.shopify.com/s/files/1/0437/6448/2202/files/fojetipuvaxudifaj.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007192.bin
979c7ecf2adb3b6e06011a6592764f06891fba9fc53460b3ec7b2cc186475e8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7192 5340 bytes
font_01_sfnt_off000083b5.bin
ad24e4ba0d023050f7f25f46d59a58b9213123a76890834681713fe38d51e38f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83B5 9816 bytes
font_02_sfnt_off0000a54d.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA54D 4324 bytes

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