Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2a9c3579015f492…

MALICIOUS

PDF

80.8 KB Created: 2020-08-17 11:45:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2cd497a3da4c1f64379fbbd4fafc0e1e SHA-1: 911900eacc1e8d019f83722dac96fecd3a6ee188 SHA-256: e2a9c3579015f492a77298a47c15440255a2740236fede188de021a3bf086105
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the malicious URL. The presence of a callback lure suggests a social engineering tactic to engage the victim further. The primary attack vector appears to be directing users to malicious infrastructure via embedded links.

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=queen%2527+s+university+business+information+technology
    • http://files.hawaiiwaterpolo.com/uploads/1/3/1/0/131070938/4467b.pdf
    • http://files.downtoearth-solutions.com/uploads/1/3/1/3/131382447/tedoxa.pdf
    • http://fixeta.rkives-art.com/uploads/1/3/1/4/131406437/lewujevizefu_tojevo_diwopubetobizi_jisinuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/5226/1795/files/88574187471.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/87138016980.pdf
    • https://cdn.shopify.com/s/files/1/0433/4691/9579/files/13290304527.pdf
    • https://cdn.shopify.com/s/files/1/0432/8819/9328/files/general_aptitude_solving_tricks.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mituvazejuremoposanizama.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/15262304951.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1952/files/jedonalopa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/prentice_hall_mathematics_algebra_2_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/30579234607.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/
    • https://cdn.shopify.com/s/files/1/0429/5226/1795/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f001.bin
fc279ddb3b50ad86264090a5c1f7d62524baa35f2835bf803ad1d513cd6416f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF001 5692 bytes
font_01_sfnt_off00010352.bin
0968ae5713896daf21ebe658f8036612553b2de66047162224f59911b204b7dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10352 16104 bytes

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