Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1753e73201e86f8…

MALICIOUS

PDF

45.5 KB Created: 2020-08-09 19:52:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 569fa1be9a39ac47a19760831f463219 SHA-1: 6abc4d1d69aa64e33e608b3ca404a10b48216cde SHA-256: a1753e73201e86f8663052ed344dc7cfb3e8f324dba476992137e14be34a8038
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=2020+myanmar+census+report+pdf', suggesting a lure to a malicious site. The presence of a visual download button further supports a deceptive user interaction pattern.

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.com/pify?keyword=2020+myanmar+census+report+pdf
    • http://files.indigotheatrical.com/uploads/1/3/2/7/132712315/suborunowawijasezajo.pdf
    • http://files.zaftigs.com/uploads/1/3/0/8/130874299/197b9e2cf5.pdf
    • http://xevimoxir.osdarmembers.org/uploads/1/3/0/7/130776485/b997e3c1.pdf
    • http://kirok.emmaredmarchrose.com/uploads/1/3/1/1/131164250/fdffcdf714.pdf
    • http://files.joinzombieclub.com/uploads/1/3/1/0/131071157/b871355960bee88.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/49770890728.pdf
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/kezolebafaluvugote.pdf
    • https://cdn.shopify.com/s/files/1/0430/3493/5447/files/tuxogarijatem.pdf
    • https://cdn.shopify.com/s/files/1/0429/5753/7439/files/90912814271.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/medarovadujagowurevasote.pdf
    • https://cdn.shopify.com/s/files/1/0435/0427/1524/files/vibakuxibanafafi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2998/5430/files/biblia_hebraica_stuttgartensia_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/2829/7381/files/97088862363.pdf
    • https://cdn.shopify.com/s/files/1/0430/9667/0365/files/catan_card_game_rules.pdf
    • https://cdn.shopify.com/s/files/1/0432/7827/0619/files/european_food_safety_standards.pdf
    • https://cdn.shopify.com/s/files/1/0431/8648/7455/files/gisuni.pdf
    • https://cdn.shopify.com/s/files/1/0433/8673/2707/files/gitumijupizifujewetodete.pdf
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/84920591200.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_off00007181.bin
829ff99a4dd2a0cbc9daea52dffb8abc465864b5973e7ead13b6fc5c1750d850
pdf-font-stream PDF embedded font (sfnt) at offset 0x7181 5552 bytes
font_01_sfnt_off00008452.bin
638334e395c72e4eee353e0c6faa11663c18ee51338ffd4bcf2b1d0db688fa89
pdf-font-stream PDF embedded font (sfnt) at offset 0x8452 10620 bytes