Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff08d9e425072fbf…

MALICIOUS

PDF

38.1 KB Created: 2020-08-06 16:25:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9450c00fd6876c4d566d1f8c9556a878 SHA-1: 5e173c71178891a887016241e4c5f46b321f7395 SHA-256: ff08d9e425072fbf88a396345fbbc9f2207336a17d4bdd73ff79c0ff1d07037d
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure. It also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm designed to manipulate search engine results. The primary malicious URL identified is https://ttraff.ru/wb?keyword=manual%20beader%20crimper, which likely serves as the initial point of compromise.

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/wb?keyword=manual%20beader%20crimper
    • http://files.carolinegordonsoprano.com/uploads/1/3/1/3/131383648/148f2f30b520c.pdf
    • http://files.pact-ottawa.org/uploads/1/3/1/6/131636766/wozolavalewali.pdf
    • http://talesew.hypnotherapythesolution.com/uploads/1/3/1/3/131383651/6f2c5a.pdf
    • http://files.maxxyieldag.com/uploads/1/3/0/7/130740536/pupovej.pdf
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/wexelopujelija.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/neguwezeduzopuwikujod.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/89947349204.pdf
    • https://cdn.shopify.com/s/files/1/0431/7069/3282/files/robelefimakosegutibum.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/18797503070.pdf
    • https://cdn.shopify.com/s/files/1/0437/0015/8632/files/8822870347.pdf
    • https://cdn.shopify.com/s/files/1/0428/6945/7063/files/dupenirosananiwilakopeja.pdf
    • https://cdn.shopify.com/s/files/1/0437/2830/6330/files/getixejufejilogivefimo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/xedoroxogewob.pdf
    • https://cdn.shopify.com/s/files/1/0434/6406/5174/files/bohemian_rhapsody_piano_sheet_music_original_easy.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/89813693006.pdf
    • https://cdn.shopify.com/s/files/1/0434/5217/0406/files/axis_and_allies_50th_anniversary_edition_rules.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68769425665.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_off00004ab5.bin
6769384b3eddc982175663a8d638edc780185b8a161c6cadb670947a7df4c536
pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB5 4876 bytes
font_01_sfnt_off00005b16.bin
ca2dc964954e24146635528720a1371c4db31bcee2a2d6bb7c2742d3b28267c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B16 9960 bytes
font_02_sfnt_off00007d3f.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3F 4324 bytes