PDF malware analysis — malicious · 91dfe4a66120371e

MALICIOUS

PDF

46.6 KB Created: 2020-07-25 17:51:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3fba82eae5e9b897380261c9e2d3a33f SHA-1: 901c8e96e0db330e7e46b0501dc5989e7dfc728d SHA-256: 91dfe4a66120371eed354202ccdf5dcf73e8d2dc0792ca0f51b74ce5a33dbacf

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm, with numerous links to PDFs hosted on various domains, some of which are unknown. The presence of a 'Download Now' lure further supports a malicious intent. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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.cc/pify?keyword=toilet+training+chart+template
- http://files.hopeschoolofleadership.org/uploads/1/3/1/8/131860204/fimuzowosevevikona.pdf
- http://files.bluffbeachretreat.com/uploads/1/3/0/9/130969639/vabefapame.pdf
- http://files.damonhurbon.com/uploads/1/3/0/8/130813913/e37968.pdf
- http://files.healthyexplorer.org/uploads/1/3/0/7/130775607/nosifevakig-jebefasip-zanosu-somalimu.pdf
- http://files.pris-t-gis.com/uploads/1/3/1/0/131070481/7825647.pdf
- https://cdn.shopify.com/s/files/1/0428/2790/7239/files/lijizolekat.pdf
- https://cdn.shopify.com/s/files/1/0430/7510/9013/files/sifegujuvanef.pdf
- https://cdn.shopify.com/s/files/1/0430/2834/9085/files/tigedi.pdf
- https://cdn.shopify.com/s/files/1/0437/1893/4677/files/doxijewixob.pdf
- https://cdn.shopify.com/s/files/1/0434/1088/2727/files/25311731453.pdf
- https://cdn.shopify.com/s/files/1/0428/0126/6851/files/migijelazuvivitiboti.pdf
- https://cdn.shopify.com/s/files/1/0430/8946/1410/files/9437597236.pdf
- https://cdn.shopify.com/s/files/1/0436/8397/1237/files/56318917046.pdf
- https://cdn.shopify.com/s/files/1/0429/6710/5687/files/17285620409.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/72670731109.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/1/0434/1088/2727/files/2531173145

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007896.bin` `5b06bca56a867a02985c9f83f4d5bf96fee79ddf17eaab22f6d06f4a8acfbddb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7896	4908 bytes
`font_01_sfnt_off00008905.bin` `75d2b99f909720a82ac3c103ad097abd88199ba4ce45a746b4684641640e3913`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8905	10500 bytes

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