Malicious PDF — malware analysis report

Static analysis result for SHA-256 d95154d4650f10c6…

MALICIOUS

PDF

47.7 KB Created: 2020-08-05 13:29:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de2adfecfc32de5ffd624d8d60dc00ee SHA-1: 31d85d397b8fae7f9d418743ceba521e27c11b5c SHA-256: d95154d4650f10c68f344cb477bf26d43dd741ef6de60819e56ed94eda135338
152 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, ttraff.com, disguised as a 'mind reader book pdf' download. This indicates a phishing or redirection attack. The ML classifier strongly supports the malicious nature of this PDF.

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=mind+reader+book+pdf
    • http://files.angieemilyjoseph.com/uploads/1/3/2/7/132712163/f778ad6591399e.pdf
    • http://files.thechurchwithamission.com/uploads/1/3/2/7/132740692/zixowaxedul_busopimotem_padige.pdf
    • http://files.mjtservices.info/uploads/1/3/2/6/132681657/dd653878.pdf
    • https://cdn.shopify.com/s/files/1/0430/8860/9429/files/vukepidiruwamopowixa.pdf
    • https://cdn.shopify.com/s/files/1/0438/3608/0288/files/purixutebanuxamegizizi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/27515758069.pdf
    • https://cdn.shopify.com/s/files/1/0432/7194/6398/files/mokutukaz.pdf
    • https://cdn.shopify.com/s/files/1/0429/1841/2451/files/blaze_of_eventide.pdf
    • https://cdn.shopify.com/s/files/1/0430/7409/3217/files/81880117663.pdf
    • https://cdn.shopify.com/s/files/1/0431/2881/5783/files/nuxuzeruvazosete.pdf
    • https://cdn.shopify.com/s/files/1/0430/0328/1571/files/brink_season_2.pdf
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/39763147459.pdf
    • https://cdn.shopify.com/s/files/1/0434/1117/7629/files/66497388449.pdf
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/19844614238.pdf
    • https://cdn.shopify.com/s/files/1/0437/6605/5063/files/simol.pdf
    • https://cdn.shopify.com/s/files/1/0431/9975/8497/files/serezabovax.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.

FilenameKindSourceSize
font_00_sfnt_off00007ed4.bin
e21ecc29cb777183a094b4c76ca13abb316908d7c158b5932c73f4c3a11d40f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED4 5032 bytes
font_01_sfnt_off0000900c.bin
07f28256ee60fb0d0fdc17a764fce2b8e84aec0a51d80073d7981f618f85bc11
pdf-font-stream PDF embedded font (sfnt) at offset 0x900C 10088 bytes