Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9f9c08f046fcdd6…

MALICIOUS

PDF

43.9 KB Created: 2020-08-16 10:56:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7456ef7d2ee6d26ac72d752aa9fa2531 SHA-1: 9e3148a048afaaf2a35aeb2db88b7cec022d46ed SHA-256: d9f9c08f046fcdd68ad4de4342b380224966c84a18a5f86a1428671a327bddc5
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'Jeopardy tv show questions and answers'. This suggests a phishing or scam attempt, likely aiming to redirect users to malicious content or further compromise. No scripts were extracted, but the PDF structure and embedded links are sufficient to infer the attack pattern.

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=jeopardy+tv+show+questions+and+answers
    • http://takegakos.tealroseevents.com/uploads/1/3/1/0/131071041/edfbf16f0b1367.pdf
    • http://files.expresiones-digitales.com/uploads/1/3/2/6/132682235/8775463.pdf
    • http://files.robertjamesallison.com/uploads/1/3/1/4/131437982/reduzijejap-lenasezolarijit-defoje-roriruge.pdf
    • http://files.jbdivprod.com/uploads/1/3/0/7/130776033/lixume_vovomevavaxu.pdf
    • http://befizuli.jadacastellari.com/uploads/1/3/1/4/131407736/4820008.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/23893268690.pdf
    • https://cdn.shopify.com/s/files/1/0430/0180/6997/files/76292660992.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6372/files/linofowofobozori.pdf
    • https://cdn.shopify.com/s/files/1/0429/2490/0515/files/78515558388.pdf
    • https://cdn.shopify.com/s/files/1/0430/8461/1737/files/43404940643.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/wagajomujepofasewo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/definicion_de_antecedentes_de_la_investigacion.pdf
    • https://cdn.shopify.com/s/files/1/0433/8909/1998/files/64751956291.pdf
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/suwizitafis.pdf
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/cressi_leonardo_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/5450/5885/files/tifeguxasosawumig.pdf
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/lego_bionicle_game_apk.pdf
    • https://cdn.shopify.com/s/files/1/0437/0015/8629/files/pugunopur.pdf
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/43603034081.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_off00006b82.bin
62bef64ecc421c35394e416accee576f5c2bce505801f6f4093eac81f2e77c76
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B82 5384 bytes
font_01_sfnt_off00007dec.bin
5b08b04358aebd0bc807511446cdf6ac4195d120694c964cca6cb10e4532d571
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DEC 10968 bytes