Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fa210975d49584…

MALICIOUS

PDF

49.2 KB Created: 2020-08-12 03:05:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 043d2fca0a7c6e1df29b52976530beb9 SHA-1: 7342f1f9163b9c52fe55ec8e13c40235897d7f40 SHA-256: f2fa210975d49584751c3c6dc00dba2df6f67ddaaf38a747c9a6f9acbe23888f
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links to other PDFs, many hosted on Shopify. The document body, though garbled, contains the title 'Instrumentacion y control de procesos juan carlos maraña pdf', suggesting a lure to disguise the malicious intent. The primary malicious IOC is the ttraff.com redirector URL.

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=instrumentacion+y+control+de+procesos+juan+carlos+mara%25C3%25B1a+pdf
    • http://files.kolkatainitiatives.net/uploads/1/3/0/7/130775537/kilovus.pdf
    • http://vewos.cardiffhomedesign.com/uploads/1/3/1/3/131381428/varolo_kumoxugisiru_favusixekabov_zinidevegu.pdf
    • http://famozi.wildago.com/uploads/1/3/0/9/130968984/9938429.pdf
    • https://cdn.shopify.com/s/files/1/0436/5526/6454/files/23515958327.pdf
    • https://cdn.shopify.com/s/files/1/0431/2950/3901/files/pulonijoxogizitevifegi.pdf
    • https://cdn.shopify.com/s/files/1/0436/7984/2457/files/votitorukuzijup.pdf
    • https://cdn.shopify.com/s/files/1/0433/5989/5717/files/45962014232.pdf
    • https://cdn.shopify.com/s/files/1/0437/3495/8229/files/velubumiboginafuloje.pdf
    • https://cdn.shopify.com/s/files/1/0441/2702/7352/files/exemple_cahier_journal_enseignant_algerie.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6578/files/list_of_gazetted_holidays_2020_in_delhi_government.pdf
    • https://cdn.shopify.com/s/files/1/0434/3015/0309/files/98698643997.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/58268817886.pdf
    • https://cdn.shopify.com/s/files/1/0434/5826/5238/files/xatufilinexevujilatafi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/74165208639.pdf
    • https://cdn.shopify.com/s/files/1/0432/3383/7224/files/tebivimedaretujasolav.pdf
    • https://cdn.shopify.com/s/files/1/0435/5814/2120/files/15316149996.pdf
    • https://cdn.shopify.com/s/files/1/0429/0589/5075/files/domasozugotukefuweropive.pdf
    • https://cdn.shopify.com/s/files/1/0435/8966/4926/files/blender_3d_manual.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/1/0435/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c28.bin
dbcf932c3ae18b6335d93a24bd6347c361cb69543020e966bdd0a7914704c635
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C28 5628 bytes
font_01_sfnt_off00008ef2.bin
26ac4c3e4579301a7f251e88666c919c57135a3ce8461ca3504c9f2561234be9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF2 11644 bytes