Malicious PDF — malware analysis report

Static analysis result for SHA-256 84a427fe5d02fa8d…

MALICIOUS

PDF

39.5 KB Created: 2020-08-13 22:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5af67b3ef2aec71c4a58c3f0a34fa23e SHA-1: 80d8e4518d669b91447c40e5617097890b504e5b SHA-256: 84a427fe5d02fa8d4c5f00a0461c669d5be056d41936f8369890347480abae5f
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding a large number of external links. One of these links, 'https://ttraff.ru/pify?keyword=d%2526+d+5e+dex+barbarian+guide', is identified as a malicious redirector. The presence of numerous links, including several pointing to potentially compromised or malicious domains like 'zikoxaj.atlantawaterjocks.com', suggests an attempt to lead the user to malicious content or phishing sites.

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=d%2526+d+5e+dex+barbarian+guide
    • http://zikoxaj.atlantawaterjocks.com/uploads/1/3/1/6/131637135/ponobizedimolido.pdf
    • http://files.learnsplunk.com/uploads/1/3/1/4/131438604/lusetexupa_vasex_jorimeli_punawalujuzokuv.pdf
    • http://files.strategicmeetingtech.com/uploads/1/3/1/1/131164556/notexif_vetuxifaj_janidanapedamej.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30617095305.pdf
    • https://cdn.shopify.com/s/files/1/0432/4347/1003/files/88412621267.pdf
    • https://cdn.shopify.com/s/files/1/0434/2166/3397/files/fetasigiduz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2195/9325/files/21312582955.pdf
    • https://cdn.shopify.com/s/files/1/0438/1707/4850/files/gokekenakasad.pdf
    • https://cdn.shopify.com/s/files/1/0433/3525/4171/files/dusopurifupafusulodazoko.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/69966693235.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/89072917916.pdf
    • https://cdn.shopify.com/s/files/1/0433/7673/8462/files/13987035884.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0888/files/78912155063.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/8181916803.pdf
    • https://cdn.shopify.com/s/files/1/0431/9582/6336/files/dibijubapukevufebadoger.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_off00005ff1.bin
491d847b6606b2aeef656f0a947dbdea29e01eb243e8a29fdb65c017b6eb5ea4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF1 4156 bytes
font_01_sfnt_off00006e1f.bin
9c2ce4c9034396f7c10edca4444794db691539528015fe2e9c5c673e40e5d201
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1F 10784 bytes