Malicious PDF — malware analysis report

Static analysis result for SHA-256 efacf2357c2e5824…

MALICIOUS

PDF

43.5 KB Created: 2020-08-11 13:08:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc0a06b76215d66703ed2059cd8f14a4 SHA-1: dbb9d0cb0529244d41a8ffb3d5d97878eb169077 SHA-256: efacf2357c2e58245759363b2e16374fa5710564bd48f76ba036f4085154bc7c
152 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, designed to trick the user into downloading further malicious content. The document body, though partially corrupted, suggests a lure related to 'risk management and insurance pdf book'. The presence of a malicious redirector link indicates an attempt to lead the user to a compromised site or a phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=risk+management+and+insurance+pdf+book
    • http://dubog.uneed2.org/uploads/1/3/1/4/131454012/4e63411a78fe.pdf
    • http://files.cyber-sec.us/uploads/1/3/0/7/130776164/42b346a2.pdf
    • http://files.ouhpsoc.org/uploads/1/3/0/7/130738955/fejezuki-xifoditin-tevenawagafi-sipadewegekiwar.pdf
    • http://bipenom.dazzlelabsstudio.com/uploads/1/3/0/7/130775129/7910530.pdf
    • http://nagexole.organizedbyadrienne.net/uploads/1/3/1/3/131378960/gebasovafege-nudimezur.pdf
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/83062802051.pdf
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/pepurenoweralibebu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1703/files/93124290651.pdf
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/63936266869.pdf
    • https://cdn.shopify.com/s/files/1/0430/7877/9029/files/96599547294.pdf
    • https://cdn.shopify.com/s/files/1/0434/8579/0365/files/aerodynamics_of_horizontal_axis_wind_turbines.pdf
    • https://cdn.shopify.com/s/files/1/0432/0631/2098/files/japozanelifekipalu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3290/2806/files/27339560549.pdf
    • https://cdn.shopify.com/s/files/1/0432/7345/3724/files/best_books_on_big_data_analytics.pdf
    • https://cdn.shopify.com/s/files/1/0437/1090/6518/files/biodegradable_plastic_manufacturing_process.pdf
    • https://cdn.shopify.com/s/files/1/0438/0740/8290/files/xawezakomobomawijano.pdf
    • https://cdn.shopify.com/s/files/1/0431/7505/1424/files/55810440808.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_off00006b1a.bin
7e3a843e6e1a736021695297b46b0b72ccb09bfd0ee7934bac15b7e9f45f72ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1A 5652 bytes
font_01_sfnt_off00007e37.bin
0540bcf55d0463472f8783c1e77f9e40cbd95209b1f34b26b08c30bd1f26618d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E37 10176 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.