Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fbe09d180ae4ae9…

MALICIOUS

PDF

39.8 KB Created: 2020-08-13 00:50:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7654ad394148439fc7d97e236b1cc523 SHA-1: 6eb1159095ead1869185e5ab44996a9254211e67 SHA-256: 9fbe09d180ae4ae9ea10ac8e6df54263eb86c53d14570f9a2e88377477ae6a83
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 firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bushcraft 101 pdf portugues download' and includes the primary malicious URL. This suggests the PDF is designed to trick users into downloading content from malicious sites, likely for phishing or malware delivery. No scripts were extracted, limiting the analysis of specific execution behaviors.

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/wb?keyword=bushcraft%20101%20pdf%20portugues%20download
    • http://jexavi.cornerstonepie.com/uploads/1/3/1/6/131636948/e6e7d.pdf
    • http://files.davertskate.com/uploads/1/3/0/7/130739462/44d127c5ea638a.pdf
    • http://files.cyclingadventures.net/uploads/1/3/2/6/132695689/sulexovabub_bubizelogu_mekodovi_pinuvawenun.pdf
    • http://files.leftcoastarchitecturalhistory.com/uploads/1/3/2/8/132814611/6857939.pdf
    • http://files.niwawriters.net/uploads/1/3/0/8/130873758/voxewi.pdf
    • https://cdn.shopify.com/s/files/1/0452/7095/8241/files/cefr_levels_description.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8311/files/telecharger_alter_ego_b2.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23083433767.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9588/files/49923632185.pdf
    • https://cdn.shopify.com/s/files/1/0449/1198/4795/files/sujet_brevet_2020_pondichry.pdf
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/titedegomogesopafu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0632/8995/files/raxuradanag.pdf
    • https://cdn.shopify.com/s/files/1/0431/0653/3525/files/suxevaduwufutigolilaga.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/candide_par_voltaire.pdf
    • https://cdn.shopify.com/s/files/1/0437/2371/8805/files/verbe_avoir_et_etre_au_present.pdf
    • https://cdn.shopify.com/s/files/1/0433/7709/8913/files/vemojosigotikilut.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46150969179.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_off00004bd3.bin
4416234a1a6e9166584f1dab877cae8030e19ec8995e92ea931cf55ba5464d5d
pdf-font-stream PDF embedded font (sfnt) at offset 0x4BD3 5584 bytes
font_01_sfnt_off00005edf.bin
edf1e164c30485283df8ee6e64931b272204ff9f088c0078499b79adac1bbcff
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDF 11604 bytes
font_02_sfnt_off000083f5.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x83F5 4324 bytes