Malicious PDF — malware analysis report

Static analysis result for SHA-256 b75bbe7348675b21…

MALICIOUS

PDF

40.5 KB Created: 2020-08-24 01:46:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d0b507cbf6cf296d501af884108a0a33 SHA-1: 14579a7b3263f328a87c18c97246c5946601d80f SHA-256: b75bbe7348675b2111d43506b07d4d7ef35fa29f5d70048ef80342cbbcaffe60
152 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector pointing to 'ttraff.com'. This URL is associated with a lure for 'football manager touch 2017 apk obb', suggesting a social engineering tactic to trick users into visiting a malicious site. The PDF also hosts a large number of external links, many of which point to benign Shopify domains, but the presence of the malicious redirector indicates a high likelihood of malicious intent.

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=football+manager+touch+2017+apk+obb
    • http://wulok.nightfallfarm.com/uploads/1/3/1/8/131856158/5599241.pdf
    • http://nutojir.thecollegeidcamp.com/uploads/1/3/2/6/132681812/e57e362b0a4f.pdf
    • https://cdn.shopify.com/s/files/1/0434/4388/0093/files/barman_in_red_libro_descargar_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0435/9464/5672/files/ps_form_8076.pdf
    • https://cdn.shopify.com/s/files/1/0449/6785/4248/files/fundamentals_of_business_process_outsourcing.pdf
    • https://cdn.shopify.com/s/files/1/0440/3822/6085/files/dragon_s_dogma_stat_growth.pdf
    • https://cdn.shopify.com/s/files/1/0433/7346/1669/files/57584983360.pdf
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/17287099387.pdf
    • https://cdn.shopify.com/s/files/1/0431/6204/2529/files/vemusopepefasivewiwilaxa.pdf
    • https://cdn.shopify.com/s/files/1/0434/1291/4332/files/68111334739.pdf
    • https://cdn.shopify.com/s/files/1/0437/1021/8391/files/gelugubirudejejanesaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/5956/0086/files/61183955263.pdf
    • https://cdn.shopify.com/s/files/1/0461/6500/0344/files/research_article_example.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_off00006001.bin
5ecfda4ac90ac744e15c366ea5749b3c88933fe9fcf11134dc33b3d1e96b9a8f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6001 5736 bytes
font_01_sfnt_off00007361.bin
3d2e9bae66aa80b53bd41fe92fc85bc26e21d2f55dcbef0a378b803eaa00927a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7361 9820 bytes