Malicious PDF — malware analysis report

Static analysis result for SHA-256 41fae36cb2c972b0…

MALICIOUS

PDF

48.8 KB Created: 2020-08-08 16:37:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eef4482ec6b41d61431229523dd55ba6 SHA-1: d02bba3c7411a43466165cf7f6c4c92b5a5d0747 SHA-256: 41fae36cb2c972b082f8bea718b4e53541a1d379518dd3837c6be9112f5c576e
130 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Gmat abstract reasoning test pdf' and embeds multiple links. One critical heuristic indicates a malicious redirector link to 'https://ttraff.cc/pify?keyword=gmat+abstract+reasoning+test+pdf', which is the primary indicator of malicious intent. The document also contains a large number of external PDF links, suggesting a link farm for SEO poisoning or traffic redirection. The presence of a visual download button further supports the lure.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=gmat+abstract+reasoning+test+pdf
    • http://files.fairviewparkrec.com/uploads/1/3/0/7/130776151/paxumemawixe_renixezapulojo.pdf
    • http://files.beyondourbox.org/uploads/1/3/0/7/130738892/4335081.pdf
    • http://files.thebuddhasmedicine.com/uploads/1/3/0/7/130739024/bonurufikametesi.pdf
    • http://files.breakalegman.com/uploads/1/3/1/4/131437413/bawupujewewo.pdf
    • http://files.yoyojake.com/uploads/1/3/1/3/131379049/finekuzir-ganavulutosili.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1149/files/77338532028.pdf
    • https://cdn.shopify.com/s/files/1/0428/2069/8268/files/zinikufexof.pdf
    • https://cdn.shopify.com/s/files/1/0437/6422/0058/files/47204961466.pdf
    • https://cdn.shopify.com/s/files/1/0432/9648/9632/files/23756907607.pdf
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/31595473320.pdf
    • https://cdn.shopify.com/s/files/1/0436/9537/4489/files/scope_statement_example.pdf
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/torakoliruvegilanoxazoru.pdf
    • https://cdn.shopify.com/s/files/1/0430/8094/1729/files/jimuborerebedimetunotulow.pdf
    • https://cdn.shopify.com/s/files/1/0431/8062/1984/files/36818019963.pdf
    • https://cdn.shopify.com/s/files/1/0440/8557/5832/files/canon_eos_rebel_t2i_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/7803/2296/files/laxezolokipegikusid.pdf
    • https://cdn.shopify.com/s/files/1/0435/4880/3227/files/can_you_feel_the_love_tonight_piano_chords.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_off00007fe4.bin
caa8dc8f0a40dbb8a38c167357088a8dd559d5a4a96844fa5805d43cf885e4b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE4 5616 bytes
font_01_sfnt_off000092dc.bin
6a7878506db3cdfc57bbb5ae92b473767db6f84c16972abb9e579456cb5ad966
pdf-font-stream PDF embedded font (sfnt) at offset 0x92DC 10304 bytes