Malicious PDF — malware analysis report

Static analysis result for SHA-256 abee49a86072b5c4…

MALICIOUS

PDF

55.1 KB Created: 2020-09-16 05:47:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 027bcbbb9f0f9bf288552ece7dd6066e SHA-1: e206462c6110577b70165365de5e0c24dd5d1285 SHA-256: abee49a86072b5c479d8a3c9b1b23a30471749051d2911bc2538224781678fed
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged for containing a malicious redirector link and a large number of external links, suggesting a link farm or phishing attempt. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the ttraff.com redirector, which is likely used to funnel users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=pugwash+conference+2020
    • https://cdn.shopify.com/s/files/1/0465/1607/6694/files/22806554115.pdf
    • https://cdn.shopify.com/s/files/1/0453/8466/3208/files/53732643770.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/salelixakibikiziz.pdf
    • https://cdn.shopify.com/s/files/1/0434/7448/5400/files/hssc_clerk_answer_key_21_september.pdf
    • https://cdn.shopify.com/s/files/1/0437/0412/3557/files/metformin_er_500_mg_weight_loss.pdf
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/xanoxezuve.pdf
    • https://cdn.shopify.com/s/files/1/0432/2652/9956/files/37461750884.pdf
    • https://cdn.shopify.com/s/files/1/0432/7338/8190/files/jutunawovuwimopo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0525/4566/files/35959935815.pdf
    • https://cdn.shopify.com/s/files/1/0434/8579/0358/files/bowuvubazujegujolusa.pdf
    • https://cdn.shopify.com/s/files/1/0444/3540/7014/files/hell_house.pdf
    • https://cdn.shopify.com/s/files/1/0428/3170/8316/files/vezumumofowomi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5377/7045/files/71755773873.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.

FilenameKindSourceSize
font_00_sfnt_off00008d22.bin
74104e0361d8b5baf1dd82a0856ad757cfe66b0490375d08a8e4e3512e8e38bb
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D22 5232 bytes
font_01_sfnt_off00009ee5.bin
7c04c70aa3afc8627c6c2673256875d727069894d1f645af135b47fe5507e5bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EE5 10332 bytes
font_02_sfnt_off0000c1f4.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xC1F4 4324 bytes