Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad9c044e651be4b6…

MALICIOUS

PDF

46.2 KB Created: 2020-08-10 20:55:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89ddff84e63f466d91efb35d59bdf260 SHA-1: 7ed648546cf8ae46427a4d2fdd7194dc17633675 SHA-256: ad9c044e651be4b6cf1bc7ad8f6d07f6e3ed0513a17ee978161191553944071a
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting a lure for 'book review examples pdf download'. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content. The presence of a large number of external PDF links suggests a link farm or SEO poisoning tactic.

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.com/pify?keyword=book+review+examples+pdf+download
    • http://files.clinicalalliancenetwork.com/uploads/1/3/1/4/131455475/2875885.pdf
    • http://labagof.sdcecd.com/uploads/1/3/2/6/132696030/5411574.pdf
    • http://files.mormozine.com/uploads/1/3/1/4/131406966/246135.pdf
    • http://runukolod.damnearlakeofegyptcabins.com/uploads/1/3/0/7/130775350/2e70634dbf3d.pdf
    • http://danogi.movementforeverfitness.com/uploads/1/3/1/6/131637136/7586905.pdf
    • https://cdn.shopify.com/s/files/1/0436/2862/6080/files/xalijevezifufikulamiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/0210/0886/files/nidikir.pdf
    • https://cdn.shopify.com/s/files/1/0438/7930/1275/files/zowufipokuwafaduporuvezi.pdf
    • https://cdn.shopify.com/s/files/1/0435/0499/2408/files/nofemibibava.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/62485934424.pdf
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/21635222562.pdf
    • https://cdn.shopify.com/s/files/1/0437/6428/5598/files/59071604255.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/66458591599.pdf
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/sutabexesudufup.pdf
    • https://cdn.shopify.com/s/files/1/0432/4225/8587/files/40353554383.pdf
    • https://cdn.shopify.com/s/files/1/0431/3317/3927/files/capacity_factor_definition.pdf
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/renutukopugi.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_off0000778e.bin
4d2c8b3081da47ab070d37fe6401695e199f616049f7dd535d2da6b24642f8b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x778E 5520 bytes
font_01_sfnt_off00008a54.bin
ea2763a333e20f786f595217ee9334f378e4817d896a321a58040fe373407ab1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A54 9780 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.