PDF malware analysis — malicious · e9438414d83b6b1e

MALICIOUS

PDF

47.7 KB Created: 2020-07-29 17:39:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 1ce7343af5556350b60f484d1ac4de2d SHA-1: ce94391d14a4adbf93d06bb2cfe80aaeca783edc SHA-256: e9438414d83b6b1e5291abf1eaa708bbe34e01d70325a3494c5fe0db37762c3b

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The presence of a 'download button' heuristic and the document body's suggestive text indicate a social engineering attempt to trick the user into clicking the malicious link. The primary malicious IOC is the ttraff.com redirector 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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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=medical+fitness+certificate+for+school+pdf
- http://files.jpactm.org/uploads/1/3/0/7/130739558/956628.pdf
- http://files.stemacademyband.com/uploads/1/3/1/4/131437862/7097380.pdf
- http://files.ontarioovationtwirlers.com/uploads/1/3/1/3/131379803/vowinuga.pdf
- http://files.biomems-supply.com/uploads/1/3/1/1/131164425/livupipolixib-mizul-vupoz-sabasudejuj.pdf
- http://files.cs4il.org/uploads/1/3/0/9/130969003/sajaliwelil-lalurakeluje.pdf
- https://cdn.shopify.com/s/files/1/0428/0611/6511/files/78044326120.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vexib.pdf
- https://cdn.shopify.com/s/files/1/0433/0392/7973/files/gozirupofomavafugel.pdf
- https://cdn.shopify.com/s/files/1/0429/8516/0857/files/widariremidafevin.pdf
- https://cdn.shopify.com/s/files/1/0432/2004/1886/files/sevadijikekujozo.pdf
- https://cdn.shopify.com/s/files/1/0434/4276/5976/files/54890997518.pdf
- https://cdn.shopify.com/s/files/1/0428/5680/8607/files/56279295859.pdf
- https://cdn.shopify.com/s/files/1/0432/6051/0376/files/10787546947.pdf
- https://cdn.shopify.com/s/files/1/0428/5543/2348/files/kixukotapetirixutaka.pdf
- https://cdn.shopify.com/s/files/1/0432/1335/7214/files/56226696291.pdf
- https://cdn.shopify.com/s/files/1/0427/5604/7004/files/nezifofivafasezites.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/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007ebd.bin` `af0a3db77891c2582482dccd16741a20122580ed6a8722be33cfc05b50e1334c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EBD	5036 bytes
`font_01_sfnt_off00008fc8.bin` `8fa4d6f5d2895a06d816c1cb0573acd1217fabfc88eb3c0b193ff0ebfb27f79f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8FC8	9892 bytes

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