Malicious PDF — malware analysis report

Static analysis result for SHA-256 3adddb787bf36614…

MALICIOUS

PDF

44.1 KB Created: 2020-08-23 21:31:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80058f9bc0d5da20ac61e270a9af48f6 SHA-1: 479f15dc399016aa2df81a208dc6c9bf61582678 SHA-256: 3adddb787bf36614ccdf858d75808c654842280d4d90536a5ca5a5783b71c749
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure related to a 'finger monkey pet guide' and embeds numerous links. One critical heuristic indicates that PDF links point to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=finger+monkey+pet+guide'. Another heuristic flags it as a PDF SEO link farm, with many links hosted on cdn.shopify.com, suggesting an attempt to manipulate search results or distribute malicious content. The 'SE_ADVANCE_FEE_SCAM_LURE' heuristic further suggests the document's content is designed to trick users into financial scams. No scripts were extracted, but the embedded links are the primary indicators of malicious activity.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=finger+monkey+pet+guide
    • http://files.vrarqueen.com/uploads/1/3/1/4/131413040/bd160.pdf
    • http://files.sensibleshock.com/uploads/1/3/0/7/130738814/fc4752b0df7b.pdf
    • http://files.en.imural.ca/uploads/1/3/2/7/132711947/50b1db9c347a48.pdf
    • https://cdn.shopify.com/s/files/1/0432/1538/8840/files/arch_linux_list_manually_installed_packages.pdf
    • https://cdn.shopify.com/s/files/1/0432/7096/3366/files/lojewafujuzoxaludoxape.pdf
    • https://cdn.shopify.com/s/files/1/0428/6539/3820/files/konuwupaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61286624564.pdf
    • https://cdn.shopify.com/s/files/1/0435/2075/3823/files/bayesian_inference_book.pdf
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/35239784153.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/xewiduloluzolodupuwa.pdf
    • https://cdn.shopify.com/s/files/1/0433/8457/0012/files/webifenuxotixorigonu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/15449701065.pdf
    • https://cdn.shopify.com/s/files/1/0429/6284/5859/files/mugimozoweferiwukajiminex.pdf
    • https://cdn.shopify.com/s/files/1/0433/8368/5270/files/99990258547.pdf
    • https://cdn.shopify.com/s/files/1/0437/5180/0981/files/maloveg.pdf
    • https://cdn.shopify.com/s/files/1/0436/1660/0227/files/tokebotegavoneliranefiv.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_off00006f0e.bin
b130a254d6a22284e1001ecf688decef14dfb1c9b2447181cced350db788eb3d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0E 4980 bytes
font_01_sfnt_off00007ff3.bin
62a3b402c421bddb6dcf771c22dfa96e6f48f08289bfbf18a948c24684d36be2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF3 10424 bytes