Malicious PDF — malware analysis report

Static analysis result for SHA-256 a808d6bfcf2d5806…

MALICIOUS

PDF

46.0 KB Created: 2020-08-21 21:15:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6183a5caf188aae5078437c3e2096687 SHA-1: 5e2bada16253caf5e9081182152bf97a1d381485 SHA-256: a808d6bfcf2d5806aa6bf88f7df3b808c96232c4ab545b2b780ef4ddc3f43b1c
140 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Clayton county sheriff police reports' and includes the malicious URL, suggesting a lure for phishing or a scam. The presence of numerous external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=clayton+county+sheriff+police+reports
    • http://pexojibi.larkinpetersart.com/uploads/1/3/1/1/131163653/a3ca2601.pdf
    • http://files.holdingupthesky.org/uploads/1/3/2/8/132815767/zakuzezabejabexo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/33430010485.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/pisojadugokarunijoxiwipo.pdf
    • https://cdn.shopify.com/s/files/1/0437/9662/7616/files/mikuba.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wotedosepano.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21244882445.pdf
    • https://cdn.shopify.com/s/files/1/0437/7490/2423/files/93159295409.pdf
    • https://cdn.shopify.com/s/files/1/0432/8253/0472/files/barden_bellas_pitch_perfect_2_final_performance.pdf
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/lonadimolodunumevovidumem.pdf
    • https://cdn.shopify.com/s/files/1/0436/2531/6514/files/ascus_y_agus.pdf
    • https://cdn.shopify.com/s/files/1/0435/6816/9121/files/54238510207.pdf
    • https://cdn.shopify.com/s/files/1/0428/1715/9335/files/vogukep.pdf
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/kujoxotume.pdf
    • https://cdn.shopify.com/s/files/1/0437/4416/6037/files/93936696478.pdf
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/rigebuwovomagawofere.pdf
    • https://cdn.shopify.com/s/files/1/0437/6422/0055/files/17037581257.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_off0000756d.bin
455f4f5ecaf5f8a1af2c3b80fe0cb35daf573d8c090218133b17bba8b2e5454d
pdf-font-stream PDF embedded font (sfnt) at offset 0x756D 5112 bytes
font_01_sfnt_off000086cf.bin
f665ec6af78aab3703239f258cd10385fba6c3c150e069045bee394e4f217823
pdf-font-stream PDF embedded font (sfnt) at offset 0x86CF 10540 bytes