PDF malware analysis — malicious · ffc604e33678f576

MALICIOUS

PDF

42.3 KB Created: 2020-08-12 07:09:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5090c895708d71ee256f82db6634adc8 SHA-1: a70d2abe7b337a5783ae5114e4a793a314261927 SHA-256: ffc604e33678f5765c444a0461ca0755859bfa8adcccebd9c331653bf49ffb27

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, likely for SEO manipulation. One critical heuristic identified a link to a known malicious redirector at ttraff.com, which is disguised as a free PDF download. The document body contains obfuscated text and URLs, suggesting an attempt to disguise the malicious intent.

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=english+speaking+lessons+pdf+download
- http://mulelizo.queerbuttons.com/uploads/1/3/2/7/132740580/xalatoxozagonorom.pdf
- http://files.fhacaurora.org/uploads/1/3/1/4/131409794/wotawefigajatisik.pdf
- http://files.iolabaptisttemple.com/uploads/1/3/1/8/131856705/2796867.pdf
- http://files.grcaroling.com/uploads/1/3/2/6/132695329/9ca6c82ce2.pdf
- http://files.gkamp.net/uploads/1/3/1/6/131636845/betezedetivale-wajegamejeputuk-kosodeposavakal.pdf
- https://cdn.shopify.com/s/files/1/0434/7019/2802/files/kigixemo.pdf
- https://cdn.shopify.com/s/files/1/0440/4648/3606/files/47108327809.pdf
- https://cdn.shopify.com/s/files/1/0437/3384/4119/files/pezubajezesoroxolo.pdf
- https://cdn.shopify.com/s/files/1/0433/2693/1099/files/ball_lightning_cixin_liu_download.pdf
- https://cdn.shopify.com/s/files/1/0432/2813/5591/files/61002728666.pdf
- https://cdn.shopify.com/s/files/1/0435/9228/6363/files/xuteguf.pdf
- https://cdn.shopify.com/s/files/1/0440/4995/7029/files/xijorigotepitep.pdf
- https://cdn.shopify.com/s/files/1/0437/3469/6097/files/77646750344.pdf
- https://cdn.shopify.com/s/files/1/0437/4098/7543/files/19024749842.pdf
- https://cdn.shopify.com/s/files/1/0447/9506/8565/files/microsoft_excel_cheat_sheet.pdf
- https://cdn.shopify.com/s/files/1/0441/0313/9480/files/surface_area_and_volume_of_cuboid_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0437/3427/0117/files/72397548306.pdf
- https://cdn.shopify.com/s/files/1/0434/4630/4920/files/gegogisilubexunuta.pdf
- https://cdn.shopify.com/s/files/1/0437/2407/9254/files/19106851350.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000677f.bin` `d0e68aae5a5c771195ad158f637ec56488e32ac206f9700766c13a077c1e7dd5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x677F	5320 bytes
`font_01_sfnt_off000079a9.bin` `79e85cd7fffcae55d74f5700997f77f251974f2f4fb50869b577635d9bed00cb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x79A9	10088 bytes

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