Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b555f253eab119e…

MALICIOUS

PDF

44.6 KB Created: 2020-08-19 20:20:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95b6fe9c6df446169b8965a4f6e0b8e4 SHA-1: 6b134cdf24e19bf14e9b47e1158b3351850febef SHA-256: 9b555f253eab119e71153c3b4d984a9af45b81d80e12c00a0c0d5e932993d0fc
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=news+channel+3+chattanooga+reporters'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external PDF links, many hosted on shopify.com. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to lure the user to malicious infrastructure.

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.com/pify?keyword=news+channel+3+chattanooga+reporters
    • http://wezoberoz.pureexistencedance.com/uploads/1/3/0/7/130739892/4077893.pdf
    • http://darikud.notthatyallcare.com/uploads/1/3/0/7/130775982/kadigiba.pdf
    • http://files.jennifererinharringtonart.com/uploads/1/3/0/9/130969075/boxilo-xabusekodejufa.pdf
    • http://files.wallmanart.com/uploads/1/3/1/6/131607331/nidizojofiwigel.pdf
    • http://files.osukappaphilambda.org/uploads/1/3/1/1/131163872/jijufaxadirew.pdf
    • https://cdn.shopify.com/s/files/1/0432/3547/5624/files/52781505240.pdf
    • https://cdn.shopify.com/s/files/1/0433/9446/5948/files/tony_robbins_notes_from_a_friend.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/keurig_k60_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/3154/3463/files/budobusogusiwafosopo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/17852304951.pdf
    • https://cdn.shopify.com/s/files/1/0435/1423/2984/files/53097478033.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/satofekefekuwozavobijogut.pdf
    • https://cdn.shopify.com/s/files/1/0430/9683/4212/files/lefodajotamisusojewikisap.pdf
    • https://cdn.shopify.com/s/files/1/0437/6782/4533/files/15054157847.pdf
    • https://cdn.shopify.com/s/files/1/0435/5060/5461/files/future_career_essay.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_off000065cb.bin
ef208c95543fa2b6c074a8a38d40f68f0561e5867c25a8cf933daba568172282
pdf-font-stream PDF embedded font (sfnt) at offset 0x65CB 5420 bytes
font_01_sfnt_off0000784a.bin
60fb63acc97955c0d85e5d42052c3fb98cf4e3c690d7d08c4c38052baea2ae1d
pdf-font-stream PDF embedded font (sfnt) at offset 0x784A 14440 bytes