Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae10d05edb756bc9…

MALICIOUS

PDF

51.9 KB Created: 2020-08-19 20:13:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97ce630549f51cb3d24f34a88bb29b25 SHA-1: c40480aba21278fdd639c712fc69d222f95a7db6 SHA-256: ae10d05edb756bc989b00d596fd8fc1a6576cab444bc38df010165f06a3461e7
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=ap+spanish+literature+book+answers', which is flagged as malicious. This suggests the PDF is designed to trick users into visiting malicious infrastructure, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=ap+spanish+literature+book+answers
    • http://files.realisticproductions.net/uploads/1/3/0/7/130775260/9662421.pdf
    • http://files.blazesolar.ca/uploads/1/3/1/3/131384539/7120887.pdf
    • http://zipake.benseverson.com/uploads/1/3/2/6/132681351/8243395.pdf
    • http://files.montaukmist.com/uploads/1/3/2/7/132740620/bomuwetuzadezagomugu.pdf
    • http://retifaz.thefitdietitian.com/uploads/1/3/1/3/131379326/4389617.pdf
    • https://cdn.shopify.com/s/files/1/0438/9899/4856/files/xiwarozejivibusabegume.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/dovikalewupizosatanidor.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/futoxesubu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9993/8211/files/70697589897.pdf
    • https://cdn.shopify.com/s/files/1/0430/7723/8945/files/paradise_lost_book_1_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/all_bodybuilding_workouts_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/fosunotolilovura.pdf
    • https://cdn.shopify.com/s/files/1/0428/9586/8067/files/deponoxudamodimojefo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/download_light_novel_classroom_of_the_elite_sub_indo.pdf
    • https://cdn.shopify.com/s/files/1/0439/1449/4107/files/battlefield_mobile_game.pdf
    • https://cdn.shopify.com/s/files/1/0428/0880/3495/files/jaxamofowagedegoxu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3909/5973/files/florence_mcclure_womens_correctional_cr.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_off00007c2a.bin
80eb39aebc65b0f96390d449b6b44fbc1e528fc8318fa0976d876354bfff2e79
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2A 5076 bytes
font_01_sfnt_off00008d5c.bin
695e82354cd5fd5037b328d9a29553a26328c45587c8be5d635aeb9dbaf5713c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D5C 11540 bytes
font_02_sfnt_off0000b48d.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xB48D 4324 bytes