Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fa955549cca5281…

MALICIOUS

PDF

47.9 KB Created: 2020-08-21 23:27:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24abb55adc931513f491f8d59a30e2de SHA-1: 51004075047c536c21b2039f0eea745dbaf0c6ac SHA-256: 9fa955549cca528117330f581ef5ddbc4f6850b73fc21f8fd8b46520ff3f96f9
162 Risk Score

Malware Insights

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

The PDF contains a link farm designed to improve search engine ranking, with a primary link redirecting to malicious infrastructure. The document also explicitly mentions password protection for an archive, indicating a common lure to bypass security controls. The embedded URL 'https://ttraff.cc/pify?keyword=archery+master+3d+hack+version+game' is a critical indicator of malicious redirection.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=archery+master+3d+hack+version+game
    • http://files.thegreatberlinwall.com/uploads/1/3/1/8/131871871/lapaz.pdf
    • http://files.dartmouthregatta.co.uk/uploads/1/3/0/7/130775795/2938170.pdf
    • http://files.shinermotorsales.com/uploads/1/3/2/6/132695818/mijudimilawe.pdf
    • http://files.talesfromasketchyartist.com/uploads/1/3/0/7/130739204/d233399.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/charbonneau_commission_report_english.pdf
    • https://cdn.shopify.com/s/files/1/0438/2703/6322/files/whiz_tv_breaking_news.pdf
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/toefl_test_preparation.pdf
    • https://cdn.shopify.com/s/files/1/0429/0134/0319/files/kujaxuwoveterafofakosi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4528/2214/files/ap_calculus_10e.pdf
    • https://cdn.shopify.com/s/files/1/0450/6599/4392/files/70712945237.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/marriage_certificate_form_karnataka.pdf
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/zujexis.pdf
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/89977053015.pdf
    • https://cdn.shopify.com/s/files/1/0432/8266/1532/files/kibosapegijok.pdf
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/cae_practice_tests_paper_1_reading_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000641b.bin
79f26ce858237da648cd8d9733243cd4ce00c0d173029ab4abd4015d95e88781
pdf-font-stream PDF embedded font (sfnt) at offset 0x641B 5700 bytes
font_01_sfnt_off00007764.bin
0fd3b0e702657d817817e2cc04a76be2d1aa3e3618a9fd87bba8e6becb993195
pdf-font-stream PDF embedded font (sfnt) at offset 0x7764 11636 bytes
font_02_sfnt_off00009d35.bin
13c540cfff82c4dbf750c4d8c74e2b7b4ef1ed85145f82e59f5e6266b522e2c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D35 16096 bytes