Malicious PDF — malware analysis report

Static analysis result for SHA-256 537a88e6e6693043…

MALICIOUS

PDF

42.1 KB Created: 2020-08-20 07:04:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c6f894c20aad61b878df48931b6b43ff SHA-1: 078f677e073e1c6714921dc5144e02c3a87ff866 SHA-256: 537a88e6e669304312c83c527f6769b9bf77a9107f139f65dd863e9b3d3a5524
128 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are disguised as legitimate documents but lead to a redirector. The primary link, 'https://ttraff.cc/pify?keyword=tangled+2+full+movie+free++utorrent', is a known malicious redirector. The document body, though heavily obfuscated, contains text related to movie downloads, reinforcing the lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=tangled+2+full+movie+free++utorrent
    • http://bejulil.talcreate.com/uploads/1/3/0/7/130776457/170074616.pdf
    • http://files.statebirdtogo.com/uploads/1/3/2/7/132710687/a1b067.pdf
    • http://files.shearserenitysalon.com/uploads/1/3/1/3/131383553/53b9878d6b0f11.pdf
    • https://cdn.shopify.com/s/files/1/0431/7501/8662/files/pearson_mastering_physics_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/51215737659.pdf
    • https://cdn.shopify.com/s/files/1/0437/1588/7256/files/jiruruzufibuzejaru.pdf
    • https://cdn.shopify.com/s/files/1/0431/3533/6616/files/kedarijokexerozowuwib.pdf
    • https://cdn.shopify.com/s/files/1/0438/2890/4093/files/zixowefel.pdf
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/33214307516.pdf
    • https://cdn.shopify.com/s/files/1/0434/3480/3352/files/pogapekebogusozujut.pdf
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/l_amore_ai_tempi_del_colera_ita.pdf
    • https://cdn.shopify.com/s/files/1/0447/4670/2999/files/49235844771.pdf
    • https://cdn.shopify.com/s/files/1/0431/9117/3277/files/pukatepuvematavununebetip.pdf
    • https://cdn.shopify.com/s/files/1/0431/6135/4389/files/bekegulewadudarexujobo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5029/4687/files/nuketown_bo3_easter_egg.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/
    • https://cdn.shopify.com/s/files/1/0447/4670/2999

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006698.bin
e31a8dbc56233f5c8b7fc87b2dc9d2881cd135bbaf9bad4aa2120d24ba410a33
pdf-font-stream PDF embedded font (sfnt) at offset 0x6698 5188 bytes
font_01_sfnt_off0000782e.bin
6d82c21de91280803c861339977042571f120659b37f7bbab495055a051f003f
pdf-font-stream PDF embedded font (sfnt) at offset 0x782E 10220 bytes