Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2ad84709b3550ca…

MALICIOUS

PDF

52.3 KB Created: 2020-08-14 02:42:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e6e3ffc5836bf17483066630686bb22 SHA-1: 35e631d8e82dd5d35c46277f240b55e30d738788 SHA-256: a2ad84709b3550caa49794bc186d1361c81ed6ba1e2b072b6291506698dc1040
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a movie download. The document body and embedded links indicate a large number of external PDF links, many hosted on shopify.com, suggesting a link farm designed to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=bharat+movie+hd++link
    • http://jasuv.mohannadgharaibeh.com/uploads/1/3/1/6/131637240/17d2c2c.pdf
    • http://files.divascentz.com/uploads/1/3/0/7/130739615/zevomegaw.pdf
    • http://files.imagesstratford.com/uploads/1/3/2/7/132740951/zodazebusu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2476/1507/files/25695320125.pdf
    • https://cdn.shopify.com/s/files/1/0435/9821/7374/files/51992824008.pdf
    • https://cdn.shopify.com/s/files/1/0429/1218/6531/files/xopalobopapipume.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/easy_rock_piano_songs.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/gugatodijubika.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/13576027919.pdf
    • https://cdn.shopify.com/s/files/1/0432/8564/3420/files/kugujakaro.pdf
    • https://cdn.shopify.com/s/files/1/0432/3934/2247/files/nolozifaviwijokobotu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5848/6678/files/mov_to_webm.pdf
    • https://cdn.shopify.com/s/files/1/0431/8094/9658/files/393340013.pdf
    • https://cdn.shopify.com/s/files/1/0431/5742/2240/files/15137227541.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c26.bin
726e531083bf8c12302c928bf520d42504e2cd68027096b86ca6d03726d49e4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C26 5060 bytes
font_01_sfnt_off00006d3a.bin
699a8b55e50cd80192193eb3832e3199d82edd581ff2a4f3bd3563cc6d5fef53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3A 20968 bytes
font_02_sfnt_off00008d6a.bin
0069fcdfb0d15a278d6261ba79e3a8ab1431e421449c0929a49ce00e9e70677c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6A 2276 bytes
font_03_sfnt_off00009737.bin
5eb0f7a2a48c870394b5c824fcd6cb2083d7d6b25e32377c9306a69f03dcb4dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9737 10384 bytes
font_04_sfnt_off0000baad.bin
7be423a9975dd74696fa28cd46b52a55c3739f4a885228df3b07ea410fd2731b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBAAD 2056 bytes

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