Malicious PDF — malware analysis report

Static analysis result for SHA-256 26993d0ed4a56212…

MALICIOUS

PDF

47.3 KB Created: 2020-08-21 04:09:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fb2f67e5c134442f5bcbfd5e4d4e66cf SHA-1: a849054f2b5a22279c3a528e52fa8dab2b777fec SHA-256: 26993d0ed4a56212120a542e0557542cecfaab7485272815e7563505d51eadee
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, forming a link farm. One of these links, 'https://ttraff.cc/pify?keyword=odisha+tourist+map+pdf', redirects to known malicious infrastructure. This suggests a phishing or redirection attempt, likely to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.cc/pify?keyword=odisha+tourist+map+pdf
    • http://files.linkyscloset.com/uploads/1/3/1/3/131378776/vapetikawaza_tuximenelawel.pdf
    • https://cdn.shopify.com/s/files/1/0428/5746/3964/files/bhojpuri_full_hd_song_video.pdf
    • https://cdn.shopify.com/s/files/1/0435/1570/7551/files/aishwarya_rai_bachchan_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/0470/7491/files/61510942353.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tedogunugovosilogupex.pdf
    • https://cdn.shopify.com/s/files/1/0429/1805/1996/files/choke_chuck_palahniuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/equalizer_2_reviews_parents_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19227598733.pdf
    • https://cdn.shopify.com/s/files/1/0437/4547/6757/files/clinical_pharmacy_roger_walker.pdf
    • https://cdn.shopify.com/s/files/1/0431/7485/4812/files/hypertension_guidelines_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/8838/0061/files/xumudafijirosixasi.pdf
    • https://cdn.shopify.com/s/files/1/0440/6801/2182/files/acanthoscelides_obtectus.pdf
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/dezofipiteme.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/97676056566.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fa2.bin
34b96831f4a0d9b0a16411c470570f81ea6276126824bd74b8deb35841c53dea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA2 4932 bytes
font_01_sfnt_off0000705b.bin
0b38f6fd5e0b54bfa22d5adee1cfe00629fe134100fc7cfc1ad14a2ab7974207		 pdf-font-stream PDF embedded font (sfnt) at offset 0x705B 6148 bytes
font_02_sfnt_off0000803a.bin
c7c07540f225cb37e89c8b1bb7e9e5149a6c53e725272ff757cc44a08e69928f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x803A 9852 bytes
font_03_sfnt_off0000a1f1.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1F1 4324 bytes

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