Malicious PDF — malware analysis report

Static analysis result for SHA-256 4440955dcee540ad…

MALICIOUS

PDF

42.9 KB Created: 2020-08-24 06:37:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7909c856ef35a098c905ff1abbf5ca5e SHA-1: 508cacfc8a61cd75f563db13237db5f43759d0ab SHA-256: 4440955dcee540ad0260d7a8f1487b498dea9448616abcf5ae2e5ee6b40570d8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily corrupted, contains text related to 'The 5th wave pdf book' and the URL 'https://ttraff.cc/pify?keyword=the+5th+wave+pdf+book', suggesting a lure to a potentially malicious site. The presence of numerous external PDF links also points towards a link farm or redirection strategy.

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=the+5th+wave+pdf+book
    • http://vesatize.waiaholenurserygardenandfloralgifts.com/uploads/1/3/2/6/132695675/xixezegoraputu_vudafol_fediza_xanubozore.pdf
    • http://zifefuv.togetherincounselling.co.uk/uploads/1/3/2/3/132302939/nabarafasaromep.pdf
    • http://files.thighsofsteel.com/uploads/1/3/0/8/130873839/kakorimulefujobe.pdf
    • http://files.leicester.church/uploads/1/3/2/7/132712015/7922920.pdf
    • http://files.jwaycott.com/uploads/1/3/1/3/131380767/lanitokuxa.pdf
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/41470266122.pdf
    • https://cdn.shopify.com/s/files/1/0437/0661/3912/files/nidogigolorovog.pdf
    • https://cdn.shopify.com/s/files/1/0429/7529/7689/files/answer_and_counter_petition_for_paternity.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pizegavegip.pdf
    • https://cdn.shopify.com/s/files/1/0437/0389/4171/files/kuliligagajinorixad.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/gonodolavu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2398/3015/files/varidudisaxuw.pdf
    • https://cdn.shopify.com/s/files/1/0450/2552/5910/files/9295999497.pdf
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/menadovuxodudaf.pdf
    • https://cdn.shopify.com/s/files/1/0434/7753/2824/files/nizonuxegefasixepate.pdf
    • https://cdn.shopify.com/s/files/1/0433/6808/7711/files/arjun_reddy_pictures_hd.pdf
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/41795475879.pdf
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/92313706134.pdf
    • https://cdn.shopify.com/s/files/1/0432/1781/3661/files/81540914465.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_off000069c1.bin
edef1044b26ef1e60071121c6090a4e9ff612060fc764985c8283b33512f9478
pdf-font-stream PDF embedded font (sfnt) at offset 0x69C1 5252 bytes
font_01_sfnt_off00007bb7.bin
7c23449b67724d024f059ddfdc8ee286ce3f1684b6533264d785b3c93fd14160
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB7 10076 bytes