Malicious PDF — malware analysis report

Static analysis result for SHA-256 286fec958925c3b1…

MALICIOUS

PDF

56.8 KB Created: 2020-08-08 23:57:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fc33c2ddfe9e579a7dfa7b76192add2 SHA-1: c853afc51765c40b9df3ab34b6129f8830805dc7 SHA-256: 286fec958925c3b12cd3f529de57561a9d3769071711bf3887887c200690a755
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, including one identified as a malicious redirector. The document body, though garbled, contains text suggesting a PDF to Word conversion tool, which is a common lure. The primary malicious URL is https://ttraff.cc/pify?keyword=convert+pdf+to+word+ocr+hebrew+online, which likely leads to further malicious content. The presence of a link farm heuristic indicates a large number of outbound links, typical of SEO-based phishing or malware distribution.

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=convert+pdf+to+word+ocr+hebrew+online
    • http://nuvam.thewisdenartist.com/uploads/1/3/0/7/130776131/bemile_zawodokuxamur.pdf
    • http://files.northernillinoishostasociety.org/uploads/1/3/1/4/131483371/zikoxumekek_sefedixezok.pdf
    • http://pexugolig.nature-myview.com/uploads/1/3/1/6/131637016/niteruziludof.pdf
    • http://zikizazid.stjohnsepiscopalchurch.org/uploads/1/3/2/7/132740805/jifeb.pdf
    • http://files.alittlenautiorderingsite.com/uploads/1/3/2/6/132680890/5526143.pdf
    • https://cdn.shopify.com/s/files/1/0432/4586/3067/files/bishop_score_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0437/9135/1969/files/death_knight_order_hall_champions.pdf
    • https://cdn.shopify.com/s/files/1/0428/9550/7615/files/7056877249.pdf
    • https://cdn.shopify.com/s/files/1/0434/1330/7541/files/16739621900.pdf
    • https://cdn.shopify.com/s/files/1/0428/8525/1235/files/vatikekagogotirororibik.pdf
    • https://cdn.shopify.com/s/files/1/0435/1744/4264/files/40106413322.pdf
    • https://cdn.shopify.com/s/files/1/0437/8053/8526/files/nesofagu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7053/7374/files/53245883930.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuvekalododit.pdf
    • https://cdn.shopify.com/s/files/1/0438/0046/1472/files/model_based_clustering_methods_in_data_mining.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
stream_005_off0000a3a2.bin
5e0ae848ec06ffcf85e72261656715cb8c69979e398acad9909d0fbe1ffb930f
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA3A2 27604 bytes
font_00_sfnt_off00006495.bin
c615904682c6b35f25dd93ed31d8cdd2813e9d02d2d3d35c45ee7b2a1b723767
pdf-font-stream PDF embedded font (sfnt) at offset 0x6495 5052 bytes
font_01_sfnt_off000075d4.bin
44e0d6e11e08e80317b75ba52309e7e497a989080b5961525d0c1385d933ff41
pdf-font-stream PDF embedded font (sfnt) at offset 0x75D4 14576 bytes