PDF malware analysis — malicious · 950ffd18b4b41ea1

MALICIOUS

PDF

45.5 KB Created: 2020-08-12 05:09:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4f42673545830c5134eb7329b6ee5c3e SHA-1: d07fee2d0ca31c4c492a5f728127652d9baeae7c SHA-256: 950ffd18b4b41ea1239542a1d5b58bf1e6a0d737fa00c6ed5f4e1e412f04ccb5

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating a link to `https://ttraff.cc/pify?keyword=post+traumatic+stress+disorder+journal+articles+pdf`. Another critical heuristic, PDF_SEO_LINK_FARM, indicates the document is a link farm, likely designed to attract traffic or distribute malicious content. The document body text, though partially garbled, includes the same search query as the malicious URL, suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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=post+traumatic+stress+disorder+journal+articles+pdf
- http://files.edgybynatureproducts.com/uploads/1/3/0/7/130740210/nujeku_musaf_dafije_mewobimo.pdf
- http://files.finoortiz.com/uploads/1/3/1/4/131453904/5fc3aa1003b3.pdf
- http://files.footmadbirmingham.org/uploads/1/3/1/3/131381231/d9ff5332f.pdf
- http://files.ironmartialartsonline.com/uploads/1/3/0/8/130813988/8656484.pdf
- http://files.williamsanmartin.com/uploads/1/3/1/3/131378993/c58f5416768.pdf
- https://cdn.shopify.com/s/files/1/0435/0866/2440/files/medasurubebewuze.pdf
- https://cdn.shopify.com/s/files/1/0440/0057/5638/files/13078873998.pdf
- https://cdn.shopify.com/s/files/1/0431/2658/7549/files/42957239605.pdf
- https://cdn.shopify.com/s/files/1/0429/6825/2565/files/66727045450.pdf
- https://cdn.shopify.com/s/files/1/0433/7188/8803/files/61446459610.pdf
- https://cdn.shopify.com/s/files/1/0429/7926/2623/files/domimajinikemap.pdf
- https://cdn.shopify.com/s/files/1/0433/8217/7946/files/jorewu.pdf
- https://cdn.shopify.com/s/files/1/0436/4877/8400/files/1079277101.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sarexomerowomowubufo.pdf
- https://cdn.shopify.com/s/files/1/0431/0315/8433/files/wajafazapozisopaw.pdf
- https://cdn.shopify.com/s/files/1/0436/0775/2861/files/convert_to_word_apple_mac.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000740e.bin` `9908993d224b789d537533899f8c3c23f7b605dc033cb962811476f4cb98a401`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x740E	5380 bytes
`font_01_sfnt_off00008648.bin` `94ef001463fff9272c2dd82c07314f4256cbf9147d831ca0f4baed26981c39f9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8648	10080 bytes

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