Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f3ed225def13a5…

MALICIOUS

PDF

40.3 KB Created: 2020-08-10 08:24:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd322616a8201dcc2947e5f5b54367f8 SHA-1: 18ae9b25f73cb393b7e895e419d70acc32141b09 SHA-256: e2f3ed225def13a5c92796e3e6ba4368c833d13feec04eb239aa05c1c6a2061d
152 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes the URL that triggers the redirector, suggesting a lure to a malicious site. The presence of many shopify.com links indicates a potential link farm for SEO poisoning or distributing malicious content. No scripts were extracted from this sample.

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/pify?keyword=cabinet+minister+of+odisha+pdf
    • http://joluvifud.naturefesttn.com/uploads/1/3/1/6/131606289/botuwamok_mozutisox_lopafosonum_pugebiw.pdf
    • http://files.dursochiropractic.com/uploads/1/3/1/3/131383284/2582778.pdf
    • http://files.endviolenceproject.org/uploads/1/3/0/8/130814329/verodewep.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5959/files/panasonic_kx_t7731_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/megegifisumifi.pdf
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/37655512912.pdf
    • https://cdn.shopify.com/s/files/1/0432/8128/5286/files/pamolimumumivejiba.pdf
    • https://cdn.shopify.com/s/files/1/0437/1732/9064/files/stanley_garage_door_opener_model_1200.pdf
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/27809513717.pdf
    • https://cdn.shopify.com/s/files/1/0436/7679/5030/files/11686723999.pdf
    • https://cdn.shopify.com/s/files/1/0435/6974/1983/files/1722327112.pdf
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/77289355820.pdf
    • https://cdn.shopify.com/s/files/1/0429/9679/3503/files/82962615781.pdf
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/20640887401.pdf
    • https://cdn.shopify.com/s/files/1/0436/5674/1022/files/libro_para_aprender_italiano_basico.pdf
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/nafex.pdf
    • https://cdn.shopify.com/s/files/1/0430/0305/2191/files/92157199953.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_off000060c7.bin
842355f3275ef740bae7d088e324b0493a14604675b4af60cf5083e925bc47ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x60C7 5296 bytes
font_01_sfnt_off00007290.bin
ac869584effbca04e696ac15e116e5cde535fe5f02c659aec3604d06a776c38d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7290 9908 bytes