Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e010f956c5f5d4…

MALICIOUS

PDF

33.5 KB Created: 2020-08-13 07:36:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 168a420e78eaf591a06e86bcc849fc9b SHA-1: 45df4c39e48cd622f983ab0a23ef752775cfe910 SHA-256: 48e010f956c5f5d426fa06effe5d4571bf932f876d484834b4eacfd3e74ffa90
152 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to ttraff.cc, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious. The document body, though partially corrupted, contains text related to 'animal farm novel in urdu pdf download' and the malicious URL, suggesting a lure to download potentially harmful content. The presence of multiple Shopify URLs, some confirmed benign and others unknown, alongside the malicious redirector, suggests an attempt to blend in or use compromised legitimate services.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/wb?keyword=animal%20farm%20novel%20in%20urdu%20pdf%20download
    • http://fiteve.mytajfashionincorporated.com/uploads/1/3/1/6/131636725/7459451.pdf
    • http://files.unitedstaging.com/uploads/1/3/1/1/131164520/dopaxe.pdf
    • http://files.ligayacandleco.com/uploads/1/3/0/7/130738725/senupes.pdf
    • http://files.dallaswelldrilling.com/uploads/1/3/1/1/131163684/be8a4e639fa17.pdf
    • https://cdn.shopify.com/s/files/1/0434/2022/1607/files/wireless_capsule_endoscopy.pdf
    • https://cdn.shopify.com/s/files/1/0432/8436/5476/files/53477303325.pdf
    • https://cdn.shopify.com/s/files/1/0430/1311/1961/files/16660803525.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/marifurozijuzaledenikegi.pdf
    • https://cdn.shopify.com/s/files/1/0433/2175/3758/files/34270466903.pdf
    • https://cdn.shopify.com/s/files/1/0430/0416/6297/files/hernias_de_pared_abdominal_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0438/0763/7661/files/natoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/44808723074.pdf
    • https://cdn.shopify.com/s/files/1/0431/2255/7082/files/37027260130.pdf
    • https://cdn.shopify.com/s/files/1/0435/8491/3565/files/kaloruv.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_off000046da.bin
7c170f4ed754e7c205ff2c0eb461d7775d5bcea849a879d2ffc23d91e4c90eee
pdf-font-stream PDF embedded font (sfnt) at offset 0x46DA 5148 bytes
font_01_sfnt_off00005859.bin
74ee49ee3a8f0066f52bb6bd7271c3af1a6d3f08db090b94341b2dada9977a9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5859 9692 bytes