Malicious PDF — malware analysis report

Static analysis result for SHA-256 6465afea2c837e82…

MALICIOUS

PDF

53.4 KB Created: 2020-09-10 01:39:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e8312a2d5db59db6628c6386d1d223ae SHA-1: 0c147ccdcd00fc110d83b15d1663c331ad5a58df SHA-256: 6465afea2c837e824d9b59c09f5a2ff511dba6aaf8c93df70292f6954934a497
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ttraff.me, which is disguised with keywords related to 'laminate formica sheets supplier'. This suggests a phishing or scam attempt. The document also hosts a large number of external PDF links, many pointing to benign Shopify URLs, but the primary malicious link is the critical finding. No scripts were extracted, limiting the analysis of further malicious behavior.

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.me/wix?keyword=laminate+formica+sheets+supplier
    • http://vusemod.westvirginiaballroom.com/uploads/1/3/0/7/130739674/914152.pdf
    • http://lejuj.sgbc.org.ng/uploads/1/3/1/3/131398504/magogibus_wujakirumedoru_nuletedazivub.pdf
    • http://fepiduvo.wilsonh2ranch.ca/uploads/1/3/1/1/131164250/jotamek-sibonelabajag.pdf
    • http://files.vanndukeandsammygotjokes.com/uploads/1/3/0/7/130738993/4460395519c8ac.pdf
    • http://files.murphybocce.com/uploads/1/3/1/8/131857758/08f34ef512302.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0431/8029/4306/files/duke_public_policy_major_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/7827/7527/files/vocabulary_personality_adjectives_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0430/5325/2757/files/bokipoxajurili.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92835403356.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8516/files/wusamijulozatazumab.pdf
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/49184160868.pdf
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/sorukof.pdf
    • https://static.usrfiles.com/ugd/5befcb_c99d2b0d99554530b587549db40fbe58.pdf
    • https://static.usrfiles.com/ugd/69b86f_24d5b3e9dfde4e0098e8cebd2d790ca0.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ae8.bin
f07434257403deb0019ddce0edceda32c052fc675b990a978a517baf539ed294		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE8 5196 bytes
font_01_sfnt_off00008c74.bin
a2b842c4e9c367a2268372810f1ebfcb39cf65e6a95d8ae51ff14de78709d82c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C74 14928 bytes
font_02_sfnt_off0000bae5.bin
9eec8b8a40e58d0c0c81cd8e8a59996f52b37cce57ea9eba4d6f16073a448527		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBAE5 3332 bytes

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