PDF malware analysis — malicious · 78ef53278207aed3

MALICIOUS

PDF

37.1 KB Created: 2020-08-08 09:19:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 82415d8bbb3deeefc5a8f51f47354742 SHA-1: b349e58859d62a41e6ba7816826a364890e459c0 SHA-256: 78ef53278207aed31bd86dc3fc3a598b041b59720be5be362ef6a4794c174d2c

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.cc/wb?keyword=nakamichi%20soundspace%208%20service%20manual'. This indicates an attempt to redirect the user to a malicious site, likely for phishing or malware delivery. The document body, though heavily obfuscated, contains text suggesting it is a service manual, which is a common lure for users seeking technical information.

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/wb?keyword=nakamichi%20soundspace%208%20service%20manual
- http://files.imaf-americas.org/uploads/1/3/1/8/131858287/libaxid.pdf
- http://files.videopeople360.com/uploads/1/3/1/3/131380547/jatiwufomixivepeguk.pdf
- http://bovuvig.cantonhighschoolgolf.com/uploads/1/3/0/8/130814788/luvorefazik-vegowel.pdf
- https://cdn.shopify.com/s/files/1/0430/2965/9805/files/alice_24_7.pdf
- https://cdn.shopify.com/s/files/1/0437/3191/0821/files/albinismo_scielo.pdf
- https://cdn.shopify.com/s/files/1/0437/1241/3851/files/18050102375.pdf
- https://cdn.shopify.com/s/files/1/0438/3604/7525/files/77017049355.pdf
- https://cdn.shopify.com/s/files/1/0431/6371/3695/files/dunopekozaxadasigafu.pdf
- https://cdn.shopify.com/s/files/1/0431/6394/3067/files/wexifa.pdf
- https://cdn.shopify.com/s/files/1/0434/2307/2412/files/vulujezovapusoxo.pdf
- https://cdn.shopify.com/s/files/1/0429/8804/4442/files/28154524494.pdf
- https://cdn.shopify.com/s/files/1/0433/8168/6437/files/17236957685.pdf
- https://cdn.shopify.com/s/files/1/0437/5992/7448/files/guxadetunilaz.pdf
- https://cdn.shopify.com/s/files/1/0431/5031/1579/files/17726121972.pdf
- https://cdn.shopify.com/s/files/1/0438/3404/8669/files/tejege.pdf
- https://cdn.shopify.com/s/files/1/0432/4694/4416/files/tajabisuputuvorekimezige.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00004572.bin` `c8404c2292e2730475e2c73f1115061dc39ec1e5ae4fe1ce94d456e27bcbde83`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4572	5404 bytes
`font_01_sfnt_off000057a2.bin` `db6823aa588ac1828a2573f1f23189944e93c72e96b1d9c63eac6539c4692bca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x57A2	10180 bytes
`font_02_sfnt_off00007969.bin` `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7969	4324 bytes

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