Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e15ed5079b9af1b…

MALICIOUS

PDF

39.6 KB Created: 2020-08-12 20:20:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9fd7756feaae3bc42787689da0edb4a SHA-1: 851be40abd3c8d3c39ca10567bf8d1e22ce2fdf8 SHA-256: 7e15ed5079b9af1bab74b57beb2866ac16202dc8cedf432b1ffa62e9d629dd78
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which point to a redirector service known to host malicious content. The primary link directs to 'ttraff.com', which is flagged as a malicious redirector. This suggests the document is designed to lead users to potentially harmful websites, likely for phishing or malware distribution.

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/wb?keyword=fashion%20figure%20drawing%20books%20pdf%20free%20download
    • http://files.adventurescomingtolifeinwords.com/uploads/1/3/2/7/132740462/midevut.pdf
    • http://files.finneyart.org/uploads/1/3/2/6/132695492/loralowona-dovafipaj-lafuku.pdf
    • http://botusolud.goddessashley.com/uploads/1/3/0/7/130738615/1102156.pdf
    • http://relejon.eastcoastawningsandblinds.com.au/uploads/1/3/2/6/132681501/1027455.pdf
    • http://xilip.ssvpgrenada1.org/uploads/1/3/0/8/130874655/bejatatikinapowif.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/porugumuxowakitomelozuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/2510/4028/files/autumn_leaves_tab_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0432/6457/3593/files/zedijuxobofuzebefexube.pdf
    • https://cdn.shopify.com/s/files/1/0438/3319/6706/files/73372257762.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4980/files/68698284797.pdf
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/jafatisosikalakaniz.pdf
    • https://cdn.shopify.com/s/files/1/0437/0667/9447/files/mepizovix.pdf
    • https://cdn.shopify.com/s/files/1/0436/4537/0528/files/vaparove.pdf
    • https://cdn.shopify.com/s/files/1/0429/4692/0615/files/sarewufikavujoja.pdf
    • https://cdn.shopify.com/s/files/1/0435/4179/0871/files/dovarexazobadisevetatigej.pdf
    • https://cdn.shopify.com/s/files/1/0430/7822/1973/files/dogilemo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5868/3291/files/55281491069.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_off00004d5f.bin
ae71c1623f169da815ce6b2b7434bab6cb350046674136e12b8edc881c36b291		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D5F 5556 bytes
font_01_sfnt_off00006041.bin
5b8490e555aa578ec57263dc6dfb61991cf268b6c2c394a0d14258fa8fd67bad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6041 2992 bytes
font_02_sfnt_off00006cad.bin
23141a952b34ca522a96403c1cd79aa99501581a0cdc5572b9a4b53075b7a0a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAD 10548 bytes

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