Malicious PDF — malware analysis report

Static analysis result for SHA-256 d472b09c885df330…

MALICIOUS

PDF

50.4 KB Created: 2020-08-04 19:01:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7258f5512f898928050e058d89ea5e30 SHA-1: 4d8f469b58508c88f176c2ab318f9b6579e633d2 SHA-256: d472b09c885df330d4a41876ac6e808335b7532e18d16590b96563b349b560fe
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDFs, indicating a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=cesarean+section+technique+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The file's purpose appears to be directing users to malicious infrastructure.

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.com/pify?keyword=cesarean+section+technique+pdf
    • http://files.jasonmedinatribalpublications.com/uploads/1/3/2/6/132696145/jibaleror.pdf
    • http://tixikapem.comedianjordanjackson.com/uploads/1/3/2/6/132681482/ladomiwolowe.pdf
    • http://files.southtownscatholic.org/uploads/1/3/1/6/131636990/3996155.pdf
    • http://files.ancientpromise.org/uploads/1/3/0/7/130738794/f04a8eb3298462.pdf
    • http://files.sportworkschiro.com/uploads/1/3/2/7/132741029/2159858.pdf
    • https://cdn.shopify.com/s/files/1/0431/1311/9905/files/51619563257.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/sesovixitotel.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/tutovutolepazo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0804/9830/files/gekokewili.pdf
    • https://cdn.shopify.com/s/files/1/0433/4485/5195/files/xuxaxepexokazebeboga.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/bozafekokejepa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/rekezasefinabefefopufa.pdf
    • https://cdn.shopify.com/s/files/1/0428/2925/0719/files/harcourt_leveled_reader.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8980/files/nademaselotajefid.pdf
    • https://cdn.shopify.com/s/files/1/0429/0953/2323/files/pojuwoxiwuporelotigovoj.pdf
    • https://cdn.shopify.com/s/files/1/0437/4711/5157/files/33486141243.pdf
    • https://cdn.shopify.com/s/files/1/0432/3688/4642/files/pejerozulej.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/lonomujukitumo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8136/6693/files/dodizezekikujegasarafejil.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007505.bin
091896ed8bc5587ee9a9ad34ad627bc3f305aee43689abdaa58350afc515dac4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7505 5244 bytes
font_01_sfnt_off000086ce.bin
a4863fbb4f8bdf70e8be3ef4ec8a9a60c0cd8b67519ecf12e5d615fc82d1ab11
pdf-font-stream PDF embedded font (sfnt) at offset 0x86CE 16404 bytes