Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4844755580362a5…

MALICIOUS

PDF

54.8 KB Created: 2020-08-18 13:20:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 651530ade998990048fad808b6a82258 SHA-1: 009c8c9454e4e0c926e8d2cfd3d3ca380d5491d8 SHA-256: f4844755580362a5c7ee792475ee0d74d1951356f704658ea0ccf8a71fa35142
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on various domains. One of these links, 'https://ttraff.cc/pify?keyword=magic+bullet+pubg+android', is identified as a malicious redirector. This suggests the document's primary purpose is to direct users to malicious infrastructure through a link farm, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of direct payload execution.

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.cc/pify?keyword=magic+bullet+pubg+android
    • http://files.shadowofadancer.com/uploads/1/3/0/7/130775126/854c04085894.pdf
    • http://files.judimorningstar.com/uploads/1/3/1/8/131856333/tojedulipuba.pdf
    • http://nuvefanil.frontstreetfellowship.org/uploads/1/3/0/9/130969204/jesazezazizot.pdf
    • http://files.myunfilteredeveryday.com/uploads/1/3/0/8/130873728/5940721.pdf
    • https://cdn.shopify.com/s/files/1/0428/9124/7779/files/2629530414.pdf
    • https://cdn.shopify.com/s/files/1/0429/0985/9999/files/59552240233.pdf
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/autobahnen_deutschland_karte.pdf
    • https://cdn.shopify.com/s/files/1/0430/7818/9205/files/11168792894.pdf
    • https://cdn.shopify.com/s/files/1/0431/3242/0264/files/understandable_statistics_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/1093/3414/files/kimupavoxisujutudukix.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/perianal_abscess.pdf
    • https://cdn.shopify.com/s/files/1/0432/2839/7732/files/48038149819.pdf
    • https://cdn.shopify.com/s/files/1/0429/9928/3861/files/14934748388.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000698b.bin
0bd3b1c89f46a4948e87f0ecdaf429d65fcef567a71858af3269c08e5ccabf98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x698B 5208 bytes
font_01_sfnt_off00007b38.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B38 1800 bytes
font_02_sfnt_off000083bb.bin
7a02da73c5ff24218d04b188db7d31ceb9303d5dedd43b645f18a615a19d9b6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83BB 6068 bytes
font_03_sfnt_off0000936c.bin
bb33b99f4336540160bd926397125ad7032e227a2fd2358bab0486642a6e4ea5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x936C 10532 bytes
font_04_sfnt_off0000b79e.bin
f267a97a42ed964490c0c36cf8d24d30f5cfc386ee24850e75bb3a4991f11828		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB79E 16376 bytes

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