PDF malware analysis — malicious · 9c7a52ab5a92516c

MALICIOUS

PDF

44.5 KB Created: 2020-08-06 23:24:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 75858193a31989bfdb3c67863758142e SHA-1: ba06602d30260e866d5133f0fd929b0502cd2cac SHA-256: 9c7a52ab5a92516cbf9f49937512ff6e6dacff772b07f12c589b12590c9be941

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 a link farm hosted on cdn.shopify.com. One prominent link, however, directs to a malicious redirector at 'ttraff.ru' which is disguised as an essay on mobile phone advantages and disadvantages. This suggests a social engineering tactic to drive traffic 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.ru/pify?keyword=advantages+and+disadvantages+of+mobile+phone+essay+pdf
- http://files.osspto.org/uploads/1/3/2/8/132815748/migujinegu.pdf
- http://simij.blacksheepsalonfl.com/uploads/1/3/0/8/130813054/abacf980675e.pdf
- http://files.callowaychurch.org/uploads/1/3/1/3/131380288/523261.pdf
- http://files.brunswickelections.com/uploads/1/3/0/7/130740148/kapom.pdf
- http://fasevesiv.ancientartisanredoaksaltlamp.com/uploads/1/3/0/7/130739718/0be6ad259b0.pdf
- https://cdn.shopify.com/s/files/1/0436/3098/5376/files/funimowulawoxezusu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99913566500.pdf
- https://cdn.shopify.com/s/files/1/0437/7152/7325/files/genodabiboferesalowe.pdf
- https://cdn.shopify.com/s/files/1/0434/9915/9718/files/jetemog.pdf
- https://cdn.shopify.com/s/files/1/0429/3630/3782/files/bujuxabujirope.pdf
- https://cdn.shopify.com/s/files/1/0431/4143/1464/files/71742133141.pdf
- https://cdn.shopify.com/s/files/1/0436/1335/6189/files/ultimate_combat_pathfinder.pdf
- https://cdn.shopify.com/s/files/1/0437/8404/4705/files/lokale_und_temporale_prpositionen.pdf
- https://cdn.shopify.com/s/files/1/0434/6960/2981/files/sijikorawito.pdf
- https://cdn.shopify.com/s/files/1/0430/7258/5881/files/56769429480.pdf
- https://cdn.shopify.com/s/files/1/0434/7602/5497/files/15029787575.pdf
- https://cdn.shopify.com/s/files/1/0434/6665/3858/files/mutual_indemnification_clause.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.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/
- https://cdn.shopify.com/s/files/1/0434/6960/2981/files/sijikoraw

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006cd6.bin` `7caeebfe63cd79595984a8ff6f0743c71b5993e5d9f76bc4c3a7683258a1a1ca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CD6	5652 bytes
`font_01_sfnt_off00008000.bin` `abcf94daa1a4c191e22152651fe6f95d97ebdef1fead4afd4fc6a08319fbf498`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8000	10648 bytes

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