Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe47cb579aabfd92…

MALICIOUS

PDF

50.0 KB Created: 2020-09-01 04:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 12957d288be8ea20ce7bbf2cf4ca4faf SHA-1: dee80ba7ce13ee76ff3f07837e202626b25086fb SHA-256: fe47cb579aabfd92477cdede739de30149cadc98e54efa3aba2bff624550582e
148 Risk Score

Malware Insights

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

The PDF contains embedded links, with one identified as a malicious redirector. The document body and heuristics indicate a lure, possibly for an invoice or callback notification, to entice users to click the malicious link. The presence of numerous external PDF links also suggests a link farm, a common tactic for SEO poisoning or distributing malicious content.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.com/wix?keyword=gs+128+barcode+format
    • https://static.usrfiles.com/ugd/b8c837_175eddbbee2643abaa28acc967ce3714.pdf
    • https://static.usrfiles.com/ugd/b3bc21_a336f1ec1c714ce6b971464459ec3e10.pdf
    • https://static.usrfiles.com/ugd/fbccce_1c4d08c296cc4b5d87729bca8e6ed562.pdf
    • https://cdn.shopify.com/s/files/1/0433/7690/2309/files/administrative_position_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0435/8438/9275/files/11th_zoology_practical_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/zapulebokavit.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lorabo.pdf
    • https://static.usrfiles.com/ugd/b8c837_7c45a3521adb48139282e4aac115287d.pdf
    • https://static.usrfiles.com/ugd/accd1f_dc471b1a83c141ad9367c6518f9902f3.pdf
    • https://static.usrfiles.com/ugd/b65acf_82fb65b8599b43c2a306d12387d23b96.pdf
    • https://cdn.shopify.com/s/files/1/0434/7192/9496/files/lovigufodipax.pdf
    • https://cdn.shopify.com/s/files/1/0432/1171/8820/files/bootstrap_4_contact_form_templates.pdf
    • https://cdn.shopify.com/s/files/1/0438/2690/5245/files/rinekibafowifafop.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_off000076cf.bin
b84c8871aae05ee7c42a5af5a265e5fed48fdbfcf81fe80574be3d8fdacaba59
pdf-font-stream PDF embedded font (sfnt) at offset 0x76CF 5316 bytes
font_01_sfnt_off000088d7.bin
1d1500a98b8939955bd4f903739c74fb10b028bbe8a3687123fe81daf7478d3f
pdf-font-stream PDF embedded font (sfnt) at offset 0x88D7 10600 bytes
font_02_sfnt_off0000acdf.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xACDF 4324 bytes