Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d2c0a8995d579d3…

MALICIOUS

PDF

49.5 KB Created: 2020-08-11 07:40:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4387f01ca2b85f9d010f14240b6c4df9 SHA-1: bfc8abcc0393482404a2c4c9b39091ef92892a18 SHA-256: 8d2c0a8995d579d3b412fdadf883ec916ded14c66acdc981d6136f3e2d164241
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 domains associated with link farms and redirectors. The primary malicious URL identified is https://ttraff.com/pify?keyword=bsc+1st+year+physics+notes+pdf+download, which is designed to redirect users. The document body, though heavily obfuscated, contains text related to academic notes, suggesting a social engineering lure. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection attempt.

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=bsc+1st+year+physics+notes+pdf+download
    • http://files.pbc-alliance.com/uploads/1/3/0/7/130740231/942364.pdf
    • http://jeposu.weealec.com/uploads/1/3/1/3/131384281/benesije-dukonezibifexu.pdf
    • http://files.legendsdolive.com/uploads/1/3/2/8/132816096/9659101.pdf
    • http://files.georgesweeneyarchitect.com/uploads/1/3/0/7/130739719/8363314.pdf
    • https://cdn.shopify.com/s/files/1/0431/7652/5988/files/wafigepizakolin.pdf
    • https://cdn.shopify.com/s/files/1/0436/3331/1904/files/golawagivipinezajo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/57426121224.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/collateral_warranty_jct.pdf
    • https://cdn.shopify.com/s/files/1/0438/1822/1728/files/65266082212.pdf
    • https://cdn.shopify.com/s/files/1/0436/6349/1222/files/luginomesofiradusunaja.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zututekafufefosapebuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/pegozijukeworifopere.pdf
    • https://cdn.shopify.com/s/files/1/0432/5412/0606/files/37458794091.pdf
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/32096120798.pdf
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/14123814925.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/laughing_man_ghost_in_the_shell.pdf
    • https://cdn.shopify.com/s/files/1/0437/4947/4453/files/4d_printing_technology.pdf
    • https://cdn.shopify.com/s/files/1/0435/7141/3160/files/bruce_lee_fighting_method_volume_1.pdf
    • https://cdn.shopify.com/s/files/1/0433/0654/9406/files/79987893991.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076db.bin
403ef93fd9b8783c54e940106578e3e5bcd71cdc2c8d3cb4008056f0223ede67
pdf-font-stream PDF embedded font (sfnt) at offset 0x76DB 5328 bytes
font_01_sfnt_off000088ff.bin
ef813624c16a9bc29bb0d7b450b557e358170798a12463ecc045fd2efc005548
pdf-font-stream PDF embedded font (sfnt) at offset 0x88FF 9808 bytes
font_02_sfnt_off0000aa90.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA90 4324 bytes