Malicious PDF — malware analysis report

Static analysis result for SHA-256 5324db8c82a13fd7…

MALICIOUS

PDF

44.9 KB Created: 2020-08-24 11:02:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff2878e92c18584f49476118b57c9c9f SHA-1: e623a04916b41acf6ef71b161e1754fca3c553b0 SHA-256: 5324db8c82a13fd7b7c7b2c1da64fbc9505e2bc593b60d4e555661f069281b01
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, but one critical link redirects to a known malicious domain (ttraff.cc). This suggests a phishing or redirection attack aimed at leading users to malicious content. The document body itself is heavily obfuscated and contains the malicious URL, further supporting this 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.cc/pify?keyword=acero+inoxidable+grado+alimenticio+pdf
    • http://files.jaclynmarta.com/uploads/1/3/0/7/130775286/kewuwobuvavujux.pdf
    • http://files.mixmax.biz/uploads/1/3/1/3/131398076/605b2e0c06.pdf
    • https://cdn.shopify.com/s/files/1/0465/3757/2502/files/fotinuzunenizaji.pdf
    • https://cdn.shopify.com/s/files/1/0433/8581/5194/files/the_stockades_vanilla.pdf
    • https://cdn.shopify.com/s/files/1/0428/3020/0991/files/alesis_dm6_assembly_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/automatic_control_engineering_mcq.pdf
    • https://cdn.shopify.com/s/files/1/0429/0494/4807/files/challa_song_babbu_maan_mr_jatt.pdf
    • https://cdn.shopify.com/s/files/1/0434/9054/1733/files/34097686307.pdf
    • https://cdn.shopify.com/s/files/1/0433/6458/1525/files/48620900770.pdf
    • https://cdn.shopify.com/s/files/1/0433/5271/9515/files/minion_rush_game_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/7663/3247/files/nanny_agency_business_plan.pdf
    • https://cdn.shopify.com/s/files/1/0457/3554/2950/files/82128118018.pdf
    • https://cdn.shopify.com/s/files/1/0434/6583/4658/files/38769376800.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jeravutudab.pdf
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/vuzeka.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_off000063a2.bin
f796e98a76c4eae6e8de8709099c4adb3eced3ae00a012d499e1ef7855b705c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63A2 5280 bytes
font_01_sfnt_off00007574.bin
d6b311f989c5dd4639004a45da87d367a2bfd1094029ad649aa1107bca3bd262		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7574 10816 bytes
font_02_sfnt_off000098a4.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98A4 4324 bytes

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