PDF malware analysis — malicious · d9f3ab410818633c

MALICIOUS

PDF

41.7 KB Created: 2020-08-14 23:25:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 668dd15be53bd9ed37a027455d3d8779 SHA-1: 25da255cfd1013ccfcecb978214e14073849b1b2 SHA-256: d9f3ab410818633c5c5705db0a43a0f0a7afb536799beb3e8b852ea5eca3fb1d

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, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that matches this finding. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The heuristic 'SE_URGENCY_LURE' suggests the document likely uses a pretext of account termination to compel users to click the 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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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=autodesk+3ds+max+education
- http://files.studiosfinearts.com/uploads/1/3/2/6/132681204/zizaxovojenanamiliz.pdf
- http://files.nownotwhen.com/uploads/1/3/1/8/131856627/nepelabesigas.pdf
- http://wusugon.janessaannetolman.com/uploads/1/3/1/3/131398140/5797526.pdf
- http://files.jrlockandsecure.co.uk/uploads/1/3/0/7/130776503/90f75fc8a74d.pdf
- https://cdn.shopify.com/s/files/1/0450/0835/5486/files/anthropocentrism_vs_ecocentrism.pdf
- https://cdn.shopify.com/s/files/1/0429/7129/9999/files/69639291352.pdf
- https://cdn.shopify.com/s/files/1/0428/9550/7622/files/lavazox.pdf
- https://cdn.shopify.com/s/files/1/0430/9162/4097/files/mubipu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57955619809.pdf
- https://cdn.shopify.com/s/files/1/0431/6112/5013/files/tuvuxiditadirefuw.pdf
- https://cdn.shopify.com/s/files/1/0434/3860/4450/files/darivusufedavigifuwamipak.pdf
- https://cdn.shopify.com/s/files/1/0430/0003/7527/files/arithmetic_formulas_in_telugu.pdf
- https://cdn.shopify.com/s/files/1/0432/4868/1120/files/mukuwudixep.pdf
- https://cdn.shopify.com/s/files/1/0433/6245/1611/files/55913840128.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_off00005e7c.bin` `29ca9af0e19343b98a3aa1d09da4e95e46e325e70eff9fa4c64446fdd9066747`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E7C	5244 bytes
`font_01_sfnt_off00007042.bin` `6171dc07d6a67e779d51d915ebb0f8899a90b3f64c3810a15d3766e07757843a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7042	13120 bytes

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