Malicious PDF — malware analysis report

Static analysis result for SHA-256 5578db8e72a6ff4e…

MALICIOUS

PDF

43.4 KB Created: 2020-08-20 04:32:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65a4dbcc19761704a23a2be5099b8832 SHA-1: 3be0b4d027acd5de2a06d0631e1c352b0c42bba5 SHA-256: 5578db8e72a6ff4ebb1a84260df6eab3f21195dbb85c0f28d6c3b9ae814f4424
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass of external links, many of which point to a redirector service. The document body text, though garbled, includes the phrase "home inspection reports online" and a URL that aligns with the malicious redirector. This suggests a social engineering lure to drive traffic to malicious infrastructure.

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.com/pify?keyword=home+inspection+reports+online
    • http://valuvelu.kangaroohavenwildliferescue.com.au/uploads/1/3/1/4/131407668/a06b975594.pdf
    • http://files.stgeorgeappliancerepair.com/uploads/1/3/0/7/130740118/132938.pdf
    • http://lorulufa.southernbritishcarclub.net/uploads/1/3/1/4/131483281/84f6a98152.pdf
    • http://nijik.mapeasymposium.org/uploads/1/3/0/9/130969173/fesudixobexaxe.pdf
    • https://cdn.shopify.com/s/files/1/0457/7689/6156/files/video_birthday_invitation_maker_app_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/john_butler_primary_college_uniform.pdf
    • https://cdn.shopify.com/s/files/1/0431/4044/8407/files/upsc_sample_answer_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0438/8857/4632/files/cardboard_robotic_hydraulic_arm.pdf
    • https://cdn.shopify.com/s/files/1/0437/2607/8106/files/p90x_diet.pdf
    • https://cdn.shopify.com/s/files/1/0435/9405/5843/files/akhiyan_da_surma_chan_ve_song.pdf
    • https://cdn.shopify.com/s/files/1/0462/2899/6247/files/pebepukaxovipefuzoberar.pdf
    • https://cdn.shopify.com/s/files/1/0429/7709/9935/files/acca_f6_pocket_notes.pdf
    • https://cdn.shopify.com/s/files/1/0465/9121/3733/files/beruntungnya_aku_sheila_on_7.pdf
    • https://cdn.shopify.com/s/files/1/0440/8855/7718/files/clinical_exercise_physiology_book.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_off00006cbb.bin
b531c1ab7de3bd680959affb33a5c2977f2312855a18b133a4e65d783544b510
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBB 4832 bytes
font_01_sfnt_off00007d0e.bin
209691b93e59df7796d25f1834810357aeefb7f191bd49b638b3cd7776c2a175
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D0E 10524 bytes