Malicious PDF — malware analysis report

Static analysis result for SHA-256 b05d731d7d0a2cca…

MALICIOUS

PDF

40.7 KB Created: 2020-08-22 02:24:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feaf8ebebcbf2b3237a4edf11a25147c SHA-1: 309d3013c2e45a10b539ffba9401953fc3816601 SHA-256: b05d731d7d0a2cca66fc18e527e735e7bff5ae4dda75d4d35ba96a3fd5cedd11
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a mass of external links, including a critical link to a known malicious redirector at `https://ttraff.cc/pify?keyword=apache+tomcat+9.+0+free`. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or credential harvesting. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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=apache+tomcat+9.+0+free
    • http://files.discoveringalabama.org/uploads/1/3/1/4/131455158/zalitifujuwi.pdf
    • http://files.firedperformancehorses.com/uploads/1/3/2/7/132740234/vuzapusozopex.pdf
    • https://cdn.shopify.com/s/files/1/0433/3607/3366/files/7794117721.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2479/files/promissory_note_personal_loan_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/0826/2297/files/gawig.pdf
    • https://cdn.shopify.com/s/files/1/0445/9964/0228/files/21722419652.pdf
    • https://cdn.shopify.com/s/files/1/0455/6567/3637/files/local_anesthesia_complications.pdf
    • https://cdn.shopify.com/s/files/1/0433/4646/0830/files/makalah_akuntansi_pemerintahan.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/17762230575.pdf
    • https://cdn.shopify.com/s/files/1/0432/3121/5774/files/gmp_guidelines_food_industry.pdf
    • https://cdn.shopify.com/s/files/1/0438/7382/9032/files/patch_notes_5._14.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/25759009226.pdf
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/zaxefenozemepelotomudif.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_off00005e8d.bin
a59dcf66d9c57898b2f8baedaec2f9649a77f94e86d7cbd5693fea49b9f795bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8D 5364 bytes
font_01_sfnt_off000070b0.bin
6dbd41d9b906d325f843dae574b96325ef62f1f6b74d992da71ed31fe49f963d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70B0 10596 bytes

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