Malicious PDF — malware analysis report

Static analysis result for SHA-256 c970f091d6b014e2…

MALICIOUS

PDF

43.4 KB Created: 2020-08-14 00:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a72732b200c788513985e70da18b6b39 SHA-1: 5e70bd94c89e44e1cf022f56ad9576c02710b640 SHA-256: c970f091d6b014e2fb4a4612137774a4f4175325b5ded74f163591520823d2b0
128 Risk Score

Malware Insights

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

The PDF contains a lure for a 'Hot wheels game free for android' and embeds multiple links. One critical heuristic indicates a malicious redirector link pointing to 'ttraff.ru', which is likely used to deliver a secondary payload. Another heuristic identifies a PDF link farm, suggesting an attempt to game search engine results or distribute content broadly. The document body, though partially corrupted, contains the same lure and the malicious URL.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.ru/pify?keyword=hot+wheels+game+free++for+android
    • http://files.sosalliance.org/uploads/1/3/2/6/132695408/podudog_kofakame_gaporiwepojov.pdf
    • http://files.sourcejuicery.com/uploads/1/3/0/8/130873822/5095126.pdf
    • http://files.farrisins.com/uploads/1/3/0/8/130814402/6897218.pdf
    • http://files.christepiscopalschooldrama.org/uploads/1/3/0/8/130874254/rofonexuwijoj_jetuwalobuvinuk_gimadek_doxepo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6262/3397/files/xoxepufopidupuna.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8448/files/venice_biennale_2020_map.pdf
    • https://cdn.shopify.com/s/files/1/0428/2331/9715/files/65771531497.pdf
    • https://cdn.shopify.com/s/files/1/0430/6056/0025/files/nawomuwapiguderofis.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/musifusotetuzetadalel.pdf
    • https://cdn.shopify.com/s/files/1/0429/7824/6815/files/83576950533.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0497/files/gapanisuweropubasiparogev.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/courtier_immobilier_formation_suisse.pdf
    • https://cdn.shopify.com/s/files/1/0443/8661/5462/files/m777_howitzer_technical_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/5865/8454/files/22167217337.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_off00005eb3.bin
791345b3bc6dbcd6e116bae49a931f599f00adf299c4f8e730c4d95d34696374
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB3 5164 bytes
font_01_sfnt_off00007027.bin
d74b2f329f2848d56a9af9e58f2d4f003f603624ab103ef901a1984fbf055bd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7027 10172 bytes
font_02_sfnt_off000092ac.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x92AC 4324 bytes