Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7f0ffbe1b23ae8e…

MALICIOUS

PDF

42.2 KB Created: 2020-08-08 20:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 965cb28fff6107ec967e0eb5cfcff214 SHA-1: e414a8a58a30fedcef1fc76b285782e410afbc0d SHA-256: a7f0ffbe1b23ae8ea5a18f2cccce241b6dd5f27cfa9f736423fe817524c3e301
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=ariens+compact+24+pdf'. Additionally, it exhibits a PDF link farm pattern, with numerous embedded links, many hosted on cdn.shopify.com. The presence of a callback lure heuristic suggests a social engineering attempt, likely to trick users into calling a fraudulent support number. No scripts were extracted from this sample.

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.
  • 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
  • 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=ariens+compact+24+pdf
    • http://files.pcconcertseries.org/uploads/1/3/1/6/131607232/4691912.pdf
    • http://lijotagil.conservationoffineart.com/uploads/1/3/1/4/131483281/dufalifusiji.pdf
    • http://files.mygrandmabakedacookie.store/uploads/1/3/1/1/131163512/liruzutox_dufep.pdf
    • http://files.rubyjoybook.com/uploads/1/3/0/7/130738524/7019602.pdf
    • http://files.morganfurze.com/uploads/1/3/0/9/130969418/4558770.pdf
    • https://cdn.shopify.com/s/files/1/0427/7331/5740/files/basic_computer_hardware_components.pdf
    • https://cdn.shopify.com/s/files/1/0430/2589/1479/files/wimofev.pdf
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/vojazen.pdf
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/python_code_to.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.pdf
    • https://cdn.shopify.com/s/files/1/0430/0741/0329/files/33793804870.pdf
    • https://cdn.shopify.com/s/files/1/0433/0386/2440/files/23132737723.pdf
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/97370062669.pdf
    • https://cdn.shopify.com/s/files/1/0434/5928/1048/files/dirugafidel.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5316/files/41157684951.pdf
    • https://cdn.shopify.com/s/files/1/0434/6154/2054/files/64430256713.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_off00005688.bin
e66652d79576b9e9bbe9adbe89dfaa5b08b776c955650352c8fb81752b3ab11f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5688 5268 bytes
font_01_sfnt_off0000684b.bin
1294dde8760b807e687aeeb04f28352db6a090bc6edf83a11b9e6035b31cdcd5
pdf-font-stream PDF embedded font (sfnt) at offset 0x684B 10632 bytes
font_02_sfnt_off00008c84.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C84 4324 bytes