PDF malware analysis — malicious · 88aec1f9eb9d1b8e

MALICIOUS

PDF

46.8 KB Created: 2020-08-14 23:01:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 940442e15767f2585114c4ac2f7da89f SHA-1: 18119e80ddbb9a0d08999568c986954436c0e300 SHA-256: 88aec1f9eb9d1b8ef1d4265e880a1b4f798a81d2ea123d00c16a3ea65debbfd1

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.cc. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external PDF links, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains the primary malicious URL and several other embedded URLs, suggesting a lure to external malicious content. 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=jesus+song+aradhana+stuti+aradhana+free
- http://files.sussner.info/uploads/1/3/0/8/130874599/nawexasul.pdf
- http://paxusegar.iaeast-ptia.com/uploads/1/3/0/7/130775934/6531463.pdf
- http://vasaziloz.mrisar.org/uploads/1/3/1/4/131453134/ad89007bf.pdf
- http://files.en.yvesalizahno.com/uploads/1/3/1/4/131437689/sopotesikadebi.pdf
- http://files.cripcouture.org/uploads/1/3/1/8/131857758/3329833.pdf
- https://cdn.shopify.com/s/files/1/0433/3695/8104/files/19072954006.pdf
- https://cdn.shopify.com/s/files/1/0435/1787/0239/files/33021266262.pdf
- https://cdn.shopify.com/s/files/1/0431/2704/6298/files/literature_review_on_automatic_voltage_regulator.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/64228699698.pdf
- https://cdn.shopify.com/s/files/1/0428/6113/3990/files/82747024677.pdf
- https://cdn.shopify.com/s/files/1/0435/0902/2886/files/fitan.pdf
- https://cdn.shopify.com/s/files/1/0429/9885/7891/files/mudilemuwun.pdf
- https://cdn.shopify.com/s/files/1/0431/6885/8280/files/xipofumopikalogasad.pdf
- https://cdn.shopify.com/s/files/1/0435/9107/3947/files/68367208123.pdf
- https://cdn.shopify.com/s/files/1/0435/8746/9471/files/72529138245.pdf
- https://cdn.shopify.com/s/files/1/0432/2348/2525/files/22716835559.pdf
- https://cdn.shopify.com/s/files/1/0430/2848/0154/files/83751351876.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_off00006101.bin` `22cf783d2a4be624b5938759a11adc4ba862a638f367fba2201bbb8ad7c88654`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6101	5124 bytes
`font_01_sfnt_off00007263.bin` `0261ba9cf70c5a4833c61c203c79b6109f10a1b637057ded983c2703b1eff135`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7263	14668 bytes
`font_02_sfnt_off0000a104.bin` `b5b37f3a52aa1e5e67265ec3641cc3487003d3c865a6905b2480f0a0b97f897c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA104	3364 bytes

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