Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd8697309658e347…

MALICIOUS

PDF

48.7 KB Created: 2020-08-12 04:58:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5edc2ea236a90010f63b5ea10b896c66 SHA-1: 2ff674368cc063a9029bef0a74ad1685cfdd4e17 SHA-256: cd8697309658e347ae647b4d3d43f73b7162e13cb35793fabcbc0567bbc22d8f
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=ahmedabad+city+map+hd+pdf', which is also flagged as malicious. This suggests the primary goal is to redirect the user to malicious content, likely for SEO spam or phishing purposes. No scripts were extracted, limiting the analysis of further payload delivery.

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.ru/pify?keyword=ahmedabad+city+map+hd+pdf
    • http://files.donnace.studio/uploads/1/3/0/7/130776449/9095471.pdf
    • http://files.laserquestbournemouth.co.uk/uploads/1/3/1/8/131857334/lifopurub_latatowisasujat_jobazepipaka.pdf
    • http://files.savefarthingworthgreen.org/uploads/1/3/1/6/131636808/0b674390b.pdf
    • https://cdn.shopify.com/s/files/1/0433/8515/9843/files/11698051166.pdf
    • https://cdn.shopify.com/s/files/1/0437/6448/2202/files/zogiki.pdf
    • https://cdn.shopify.com/s/files/1/0440/5864/0534/files/butomilodamureb.pdf
    • https://cdn.shopify.com/s/files/1/0431/7344/5788/files/pdf_para_aprender_ingles_desde_cero.pdf
    • https://cdn.shopify.com/s/files/1/0428/0349/5071/files/wilomisexukudibuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/1448/0287/files/centroide_y_centro_de_gravedad_estatica.pdf
    • https://cdn.shopify.com/s/files/1/0428/8780/7129/files/493563894.pdf
    • https://cdn.shopify.com/s/files/1/0434/5797/0329/files/sorting_algorithms_python.pdf
    • https://cdn.shopify.com/s/files/1/0430/6498/3703/files/latimomazugunopapemuwajom.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/zijodejawudagokutef.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9605/files/public_finance_management_act_no_1_of_1999.pdf
    • https://cdn.shopify.com/s/files/1/0434/3319/7718/files/54906534185.pdf
    • https://cdn.shopify.com/s/files/1/0438/0898/1153/files/gelesigapatavezunaregoz.pdf
    • https://cdn.shopify.com/s/files/1/0437/8509/3281/files/buku_budaya_jawa.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_off0000739d.bin
f3be1aa7ec2fd59248b6c372df948e2817029dba12809b8f00ec98b0fd207698
pdf-font-stream PDF embedded font (sfnt) at offset 0x739D 5320 bytes
font_01_sfnt_off0000859a.bin
0b19181ab27c472ad3a369fc9686263948781a8acd549cebc7f823133219f5d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x859A 15824 bytes