Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cabc879446ee8b1…

MALICIOUS

PDF

44.7 KB Created: 2020-07-30 07:00:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ee6b6bf1597acf70c05d2d561699f75 SHA-1: f438c3386bb6a39779f5df8a0e31648e32f16100 SHA-256: 4cabc879446ee8b1f326b73b875458de7cfe8dd2b53e0a9b1c1830e34a6bb34e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a malicious redirector link, and another flagged the document as a PDF SEO link farm. The embedded URLs, particularly the redirector, suggest an attempt to direct users to malicious infrastructure. No scripts were extracted, limiting further analysis of the file's behavior.

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=airline+reservation+system+project+in+java+netbeans+pdf
    • http://files.myfoodfantasia.com/uploads/1/3/1/8/131856306/zepogire_jivibofowarikow.pdf
    • http://files.jvlmasons.com/uploads/1/3/1/6/131636654/jekekuzosezilu_losimefigonifuv_savigibasegimer_waxogawakogop.pdf
    • http://files.newlightfotodesign.com/uploads/1/3/0/8/130874520/nivitefubo.pdf
    • http://files.purplebroom.com/uploads/1/3/2/6/132696506/fazufexanefesixenufu.pdf
    • http://files.vinodbharti.com/uploads/1/3/1/4/131438464/nakoxebowirap-jidanusixexa.pdf
    • http://files.newlightfotodesign.c
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/58843878928.pdf
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/vuxifukamugexefebejev.pdf
    • https://cdn.shopify.com/s/files/1/0431/3301/0082/files/pevekutilefikujisomegefe.pdf
    • https://cdn.shopify.com/s/files/1/0434/3293/5574/files/10960716704.pdf
    • https://cdn.shopify.com/s/files/1/0437/6559/6321/files/vizigurokaliwif.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95610310087.pdf
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/70882259147.pdf
    • https://cdn.shopify.com/s/files/1/0429/2342/5955/files/mimop.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.pdf
    • https://cdn.shopify.com/s/files/1/0436/1610/8707/files/napunikupunuvuzaxorevexaz.pdf
    • https://cdn.shopify.com/s/files/1/0438/6075/4582/files/84794388130.pdf
    • https://cdn.shopify.com/s/files/1/0434/8638/0189/files/13170458884.pdf
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/70561667518.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_off0000711b.bin
a89e0334f4a4700ce827e31126bb8471188df771266058c558bf586a234970d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x711B 5456 bytes
font_01_sfnt_off00008395.bin
9083c423984c61e5bb4ffb0928d820952c2751f71164bf87b471eb66c966bb2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8395 9848 bytes

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