Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dcbee803aafc75a…

MALICIOUS

PDF

56.8 KB Created: 2020-08-17 02:41:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92f35c31ae142cf5584956f6fee8204d SHA-1: 4d4f49a896ba390a0d0de9d74e954c2c087472fb SHA-256: 2dcbee803aafc75a59e791edfdf495ec5bf8c95cb08800b27f647f6cdde40bf5
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is presented to the user with the lure 'Asphalt 6 apk apkpure'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or credential harvesting. No scripts were extracted from this sample.

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=asphalt+6+apk+apkpure
    • http://files.careyblankenship.com/uploads/1/3/1/3/131380616/fepina-zipebituseve-navibe.pdf
    • http://files.robbiehamblin.com/uploads/1/3/0/7/130739789/1156947.pdf
    • http://files.studiothinking.org/uploads/1/3/2/7/132710627/cfaf5.pdf
    • http://kajusolu.aristoclad.com/uploads/1/3/0/7/130775735/nireriguk-ropefibe-pixoxuduje.pdf
    • http://disug.kootenaywinecrafters.com/uploads/1/3/1/3/131398101/nemodarit_mujobevijuposo_tigeva_vokepiboduju.pdf
    • https://cdn.shopify.com/s/files/1/0437/4613/2129/files/74198287545.pdf
    • https://cdn.shopify.com/s/files/1/0434/1297/9869/files/voxadedigelobodomud.pdf
    • https://cdn.shopify.com/s/files/1/0430/7088/1946/files/90841610949.pdf
    • https://cdn.shopify.com/s/files/1/0429/2070/6204/files/78711426759.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40545468116.pdf
    • https://cdn.shopify.com/s/files/1/0435/9415/4146/files/zogetapup.pdf
    • https://cdn.shopify.com/s/files/1/0448/9995/8939/files/92686109375.pdf
    • https://cdn.shopify.com/s/files/1/0437/8938/5885/files/godogufub.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/atmosfera_fizikasi.pdf
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/55094289515.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/caritas_in_veritate.pdf
    • https://cdn.shopify.com/s/files/1/0437/6815/2216/files/15885417108.pdf
    • https://cdn.shopify.com/s/files/1/0431/2144/2965/files/54388893409.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d08.bin
93bb8b3d78576828beb9048d3fd899743f7c12533187924eed7eb52784a6bfef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D08 5116 bytes
font_01_sfnt_off00007e58.bin
086e8440247ee638e94293b5a52fca9bbcf78430dd06219428f3df6240d2071f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E58 7536 bytes
font_02_sfnt_off000097b8.bin
da9b2f221c994f4cf89e7ca484d024b190f49642ea958996b3e00a3b16aee89d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97B8 11756 bytes
font_03_sfnt_off0000be92.bin
975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE92 16312 bytes

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