Malicious PDF — malware analysis report

Static analysis result for SHA-256 0017a2fad9ac064a…

MALICIOUS

PDF

51.8 KB Created: 2020-08-22 19:44:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22c22f097571a2414b7b12bd9940a42d SHA-1: d219e8c0a8de9585390d80572290724ed88887d5 SHA-256: 0017a2fad9ac064a67b448c5551fd7a930ea12d9482b1b14a887518505fadfa6
154 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and heuristics indicate it contains a large number of external links, many of which point to benign Shopify URLs. However, one embedded URL, 'https://ttraff.com/pify?keyword=coronary+heart+disease+introduction+pdf', is known to lead to malicious redirector infrastructure. This suggests the document is designed to lure users to malicious sites, likely for phishing or malware delivery.

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=coronary+heart+disease+introduction+pdf
    • http://fivugugu.angelaherbert-hodges.com/uploads/1/3/2/7/132740763/1775cf58f.pdf
    • http://bulexuso.paulashbyjohnsonphotography.co.uk/uploads/1/3/1/6/131606289/e798e56.pdf
    • http://files.livingdistinctivelives.org/uploads/1/3/0/7/130776016/tenor.pdf
    • http://finixav.314vbc.org/uploads/1/3/1/0/131070487/sisulefojopewej.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/c_format_specifiers.pdf
    • https://cdn.shopify.com/s/files/1/0432/0234/7168/files/99244179572.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/charlotte_s_web_script.pdf
    • https://cdn.shopify.com/s/files/1/0431/8514/3965/files/sipuzosofujurifewilate.pdf
    • https://cdn.shopify.com/s/files/1/0429/1290/7423/files/nitovonufepogunuwogulowo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7559/9524/files/97938975522.pdf
    • https://cdn.shopify.com/s/files/1/0431/1157/9809/files/26779571821.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/pujitigozizu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93880590480.pdf
    • https://cdn.shopify.com/s/files/1/0440/6909/3541/files/selubalamaxajal.pdf
    • https://cdn.shopify.com/s/files/1/0430/0508/3811/files/tegezekaditilatif.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_off00007e2b.bin
af2508bca04019e4f08c052054c3a96f171cf0ad8f5d6e2bb15c557527f90f70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2B 5220 bytes
font_01_sfnt_off00008feb.bin
c1337c03d408781f37a1dffaacb4ccb97e7dcdfb716085738cbd90b95725f5a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FEB 10796 bytes
font_02_sfnt_off0000b3e6.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB3E6 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.