Malicious PDF — malware analysis report

Static analysis result for SHA-256 a765ac0343285081…

MALICIOUS

PDF

42.6 KB Created: 2020-09-03 00:30:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44f4a4f385d3d2c0a7e6adfa10d5c437 SHA-1: 7967fe2d218fc111008cdde2e7a45d0224c19927 SHA-256: a765ac03432850817fcc5db3182a59c39a1594225c1c87eab9395599605db74c
140 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is disguised as a 'bcbs alabama provider manual 2019'. This suggests a phishing or scam attempt to lure users to malicious infrastructure. The document also contains a large number of external PDF links, many hosted on Shopify, which is characteristic of SEO link farm techniques used to improve search engine rankings for malicious content. The presence of a phone number lure further supports a callback phishing or tech-support scam pretext.

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.cc/wix?keyword=bcbs+alabama+provider+manual+2019
    • https://cdn.shopify.com/s/files/1/0435/7747/5233/files/touch_screen_calibration_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0430/8857/6673/files/2003_chevy_trailblazer_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/3732/5472/files/4109841180.pdf
    • https://cdn.shopify.com/s/files/1/0432/0755/7283/files/zujeloxiva.pdf
    • https://cdn.shopify.com/s/files/1/0437/4344/5141/files/dwarf_fortress_guide_to_rock.pdf
    • https://cdn.shopify.com/s/files/1/0434/8785/4749/files/neoliberalism_international_relations.pdf
    • https://cdn.shopify.com/s/files/1/0432/9242/6405/files/91559923477.pdf
    • https://cdn.shopify.com/s/files/1/0435/8651/9208/files/96242880845.pdf
    • https://cdn.shopify.com/s/files/1/0431/4343/0305/files/mesin.pdf
    • https://cdn.shopify.com/s/files/1/0433/9305/6933/files/jitifivenijigisojukozif.pdf
    • https://cdn.shopify.com/s/files/1/0433/7300/2906/files/neweji.pdf
    • https://cdn.shopify.com/s/files/1/0432/7027/5237/files/pelizakodefim.pdf
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/craps_payout_cheat_sheet.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_off000059a6.bin
8de32ef223ad9bb91892507af8b01ff55a676e9c7eec88aaec3b8f514b8816d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x59A6 5752 bytes
font_01_sfnt_off00006d0a.bin
352c16e2542ddc7ee2b9f6d0a463901fb0c29ca853e93296814b747f33771bdf
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0A 10112 bytes
font_02_sfnt_off00008fb0.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB0 4324 bytes