Malicious PDF — malware analysis report

Static analysis result for SHA-256 03e2eadcf1d5df4b…

MALICIOUS

PDF

48.2 KB Created: 2020-08-05 05:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b52445e55995b29bf106c9a736cc5583 SHA-1: 42dbd4c5a6187e3935f6456acc87df51103e7938 SHA-256: 03e2eadcf1d5df4bc688f70140f629a654c75c7d30b8b1c3f355088979bc1cf1
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, including one pointing to a known malicious redirector. The document body text, though garbled, includes phrases related to 'dmv ny road test pdf' and URLs, suggesting a lure to trick users into clicking malicious links. The presence of a link farm and a malicious redirector indicates an attempt to distribute further malicious content or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.ru/pify?keyword=dmv+ny+road+test+pdf
    • http://files.scw8whedonstudiestv.com/uploads/1/3/0/7/130738769/dalizazafovotak_gimabativon.pdf
    • http://dadudutux.sujokmalaysia.com/uploads/1/3/0/7/130775934/3688407.pdf
    • http://files.nerinxhallspiritshop.org/uploads/1/3/1/0/131070539/fewisesixa-natovaxagavuvev-vabut-dagazafeka.pdf
    • http://files.collegemoversandhauling.com/uploads/1/3/1/4/131438114/dc3a842cf4394.pdf
    • http://files.ambergirl.org/uploads/1/3/1/1/131164475/1862fbfb4d78b28.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/0079/1191/files/domawibatozim.pdf
    • https://cdn.shopify.com/s/files/1/0430/7510/9018/files/buleloxelujolizezi.pdf
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/70446946616.pdf
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/68427149700.pdf
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/11883753452.pdf
    • https://cdn.shopify.com/s/files/1/0430/4204/6103/files/miwakirerogudedugi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65233410578.pdf
    • https://cdn.shopify.com/s/files/1/0435/5103/1447/files/nasologuvaxukovopi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4457/7178/files/854786321.pdf
    • https://cdn.shopify.com/s/files/1/0427/5719/3895/files/lulebosawew.pdf
    • https://cdn.shopify.com/s/files/1/0437/7978/4866/files/gakonubageteju.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007114.bin
32038b7f8812b0a5bdc7599c59dccd9e72f5b6c0b8aa4a6d04f1a37cbd4acad2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7114 5056 bytes
font_01_sfnt_off00008230.bin
2189961ffc73e72a5b50be145b439f45116c29c89c293d10b3e3f912853cd7cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8230 10460 bytes
font_02_sfnt_off0000a5fa.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5FA 4324 bytes

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