PDF malware analysis — malicious · a154a4f1e1fc0c15

MALICIOUS

PDF

41.6 KB Created: 2020-08-06 12:43:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 71f04f78106be3239f1ad81651de91ca SHA-1: 6e5e165bf2d8eb3957d6a9311cd7dde5374ff746 SHA-256: a154a4f1e1fc0c15154f3c0181f408abb1eaa1373a501ae5821d744ceefb2175

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector at ttraff.com. The document body, though malformed, contains the title 'Characteristics of life activity pdf' and the URL that triggered the malicious redirector heuristic. The presence of numerous Shopify-hosted PDF links suggests an attempt to obscure the malicious intent by distributing it across many seemingly benign domains. 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.com/pify?keyword=characteristics+of+life+activity+pdf
- http://files.falconfamiliesofky.afaparents.org/uploads/1/3/1/4/131453267/465011.pdf
- http://files.offroadandoutdoor.com/uploads/1/3/2/7/132740586/b6bdd.pdf
- http://files.skanewellness.com/uploads/1/3/0/8/130814605/2566650.pdf
- http://files.tecumsehbakery.com/uploads/1/3/0/7/130738903/396e9b4b8684.pdf
- https://cdn.shopify.com/s/files/1/0432/2656/2722/files/zimobotoroxedizeb.pdf
- https://cdn.shopify.com/s/files/1/0436/4579/6512/files/98363432398.pdf
- https://cdn.shopify.com/s/files/1/0433/1637/9816/files/kinexurumojik.pdf
- https://cdn.shopify.com/s/files/1/0429/8565/2375/files/57111951151.pdf
- https://cdn.shopify.com/s/files/1/0431/7279/0432/files/devobisinalu.pdf
- https://cdn.shopify.com/s/files/1/0433/0618/8955/files/baxeri.pdf
- https://cdn.shopify.com/s/files/1/0434/7920/3992/files/vogiladoragidip.pdf
- https://cdn.shopify.com/s/files/1/0435/5719/1843/files/26629665666.pdf
- https://cdn.shopify.com/s/files/1/0431/4556/0226/files/gupiposelodatimuwet.pdf
- https://cdn.shopify.com/s/files/1/0434/7068/4317/files/13550751139.pdf
- https://cdn.shopify.com/s/files/1/0427/9821/9420/files/sunuvurafegimavepupag.pdf
- https://cdn.shopify.com/s/files/1/0429/5199/9637/files/xuzozak.pdf
- https://cdn.shopify.com/s/files/1/0432/6971/8182/files/procedure_manual_template.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vinupagudesezubinu.pdf
- https://www.cancer.gov/coronavirus
- 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_off000063f2.bin` `11c808f290419591d9a08dcc8bbd36c097eaefecccf2f4aa277fb38cc87e0a21`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63F2	5312 bytes
`font_01_sfnt_off00007608.bin` `f9aeb3df24aa9525995a89a5f52258d217a8b99b6815bb3f44e3428d00f6da80`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7608	10336 bytes

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