Malicious PDF — malware analysis report

Static analysis result for SHA-256 732dd926f0e8370a…

MALICIOUS

PDF

42.1 KB Created: 2020-08-20 21:18:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dc526388af92b813710bd3c39902890 SHA-1: 6eea574e9c64c163bc3ce7703f65d1aa56e2ef8a SHA-256: 732dd926f0e8370a246080b9994b10257400c3ae218d141b704e36f954f15bf3
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains a lure for an advance-fee scam, presenting language related to lotteries, beneficiaries, or prizes alongside requirements for parcel delivery. It embeds numerous links, with one identified as a malicious redirector pointing to 'ttraff.com'. The document's structure and embedded links suggest it is designed to trick users into clicking through to malicious infrastructure, likely to initiate a fraudulent transaction or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=snake+pass+game++full+version+pc
    • http://files.blainegonzalez.com/uploads/1/3/1/3/131397987/75f0565d1.pdf
    • http://files.godshealingprocess.com/uploads/1/3/1/3/131398143/eac49e7f97687.pdf
    • http://zisanamek.lahabrahighschoolchoir.com/uploads/1/3/0/8/130874683/279614.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/income_tax_slabs_for_fy_2020_20.pdf
    • https://cdn.shopify.com/s/files/1/0430/7822/1973/files/dogilemo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/pukup.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/zugonaxesigodefeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/7403/5607/files/19245734062.pdf
    • https://cdn.shopify.com/s/files/1/0432/2289/2711/files/11109291159.pdf
    • https://cdn.shopify.com/s/files/1/0436/4815/5806/files/apsrtc_bus_pass.pdf
    • https://cdn.shopify.com/s/files/1/0435/0436/9816/files/gexakapuwajox.pdf
    • https://cdn.shopify.com/s/files/1/0434/5734/7749/files/56701890417.pdf
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/ponadij.pdf
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/conservation_of_biodiversity.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000633f.bin
f119bd4f2dae9272077a32bcc7c5e858fbcc595669509c80e77585bbed3b4735		 pdf-font-stream PDF embedded font (sfnt) at offset 0x633F 5560 bytes
font_01_sfnt_off0000761c.bin
b84571f5d147a421e4889919a1982c688b7b8f1196507e0176f964ff29c0f0c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x761C 10992 bytes

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