Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0a7defdc4d90dfe…

MALICIOUS

PDF

43.4 KB Created: 2020-08-10 08:18:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a822ee4e365b300038893caab793b599 SHA-1: 125c0c5f3b05353f26252834539641d4cb272fe5 SHA-256: e0a7defdc4d90dfe278eb8d52b2ef53712dd616d23f82d77bb2092ec8954a86c
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Boston street map pdf' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The presence of numerous external links, including the malicious one, indicates a likely attempt to redirect the user to a compromised site or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=boston+street+map+pdf
    • http://legukab.alliswellcbd.com/uploads/1/3/2/8/132814930/fojigavijazawenugo.pdf
    • http://files.gwheelerfishingguide.com/uploads/1/3/1/4/131438260/paxel_sakimegojikixol_zujej_rozoja.pdf
    • http://files.tothpatricia.com/uploads/1/3/1/3/131380128/jotes.pdf
    • http://files.patriotbandsupport.org/uploads/1/3/0/7/130776726/viwepabuxepitivij.pdf
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/61341258806.pdf
    • https://cdn.shopify.com/s/files/1/0438/8922/9979/files/37426496187.pdf
    • https://cdn.shopify.com/s/files/1/0431/8275/1893/files/zuwobobikiradurubu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39720928980.pdf
    • https://cdn.shopify.com/s/files/1/0433/1202/1657/files/zijefupuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/zegagerilujixesimozaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/71029945093.pdf
    • https://cdn.shopify.com/s/files/1/0437/9954/3970/files/16035625095.pdf
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/a_natural_approach_to_second_language_acquisition_and_learning.pdf
    • https://cdn.shopify.com/s/files/1/0438/0511/4528/files/the_economist_style_guide_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/7121/7565/files/empire_s2_e4.pdf
    • https://cdn.shopify.com/s/files/1/0432/1280/0159/files/carmina_burana_parts.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_off00005f4d.bin
30b7712a131f3d768b97d73ce6bf977888c2a64c6033366603552c3f68467383
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4D 4944 bytes
font_01_sfnt_off00006ff2.bin
30f4f9678ff63ce4972765475060895269a5499b5e38143909b653e470cb0b12
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF2 10160 bytes
font_02_sfnt_off000092b1.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x92B1 4324 bytes