Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec56e200066d8a6b…

MALICIOUS

PDF

33.0 KB Created: 2020-08-06 17:39:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab77e60ef8404aa67a08cd7d1b1cad3c SHA-1: 097c043586bf6452d788e261bc6e71299e2c3f15 SHA-256: ec56e200066d8a6b13a9769b415d6b65533b794d947f4725d13a8cbdb74b7b5d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes text related to 'Atal pension yojana application form pdf' and the malicious URL, suggesting a phishing lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK strongly indicates malicious intent.

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.ru/pify?keyword=atal+pension+yojana+application+form+pdf
    • http://files.nmffa.org/uploads/1/3/0/9/130969819/deniz.pdf
    • http://files.fit4ballet.co.uk/uploads/1/3/1/1/131164124/1ad88b1ece9c9.pdf
    • http://files.markhamyoga.com/uploads/1/3/0/8/130874668/kejilebivoxiwo_gexakuketeremed.pdf
    • https://cdn.shopify.com/s/files/1/0432/6880/0676/files/canon_eos_rebel_sl1_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/1464/2069/files/blockchain_course_content.pdf
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/niv_bible_1984.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5302/files/nekikubilatiwuwi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6744/0294/files/make_list_targets.pdf
    • https://cdn.shopify.com/s/files/1/0435/4598/5192/files/yajur_veda_sandhyavandanam.pdf
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/zoxajerulakelexuvagumigak.pdf
    • https://cdn.shopify.com/s/files/1/0433/3630/2750/files/aladdin_and_jasmine_story.pdf
    • https://cdn.shopify.com/s/files/1/0432/4222/5832/files/33618816074.pdf
    • https://cdn.shopify.com/s/files/1/0434/0305/1171/files/tuzixudotujudoritis.pdf
    • https://cdn.shopify.com/s/files/1/0429/5491/5993/files/70256591204.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.

FilenameKindSourceSize
font_00_sfnt_off00004485.bin
b75792feb9709407ec505a2cfd19d0a4354b7c337b3035c29fcc40fa843dbd4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4485 5468 bytes
font_01_sfnt_off00005719.bin
09215ac99fee25907c0cec7303437c67f0369e70fec586fc98262b3c49f8b1ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5719 9352 bytes

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