Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bb22d240dfd47fd…

MALICIOUS

PDF

45.3 KB Created: 2020-08-01 19:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d9253e351b586204ea1c1d6f0228243 SHA-1: e211a8b6000524ef5c97a916b10665a7b0adf463 SHA-256: 1bb22d240dfd47fdaa4d54786287c0002c334567cce6eb2d2490e6bba2718f19
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL that is flagged as malicious. The document body mentions 'Lowes credit card bill pay', suggesting a phishing lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to manipulate search engine results or distribute malicious content. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or exploits.

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=lowes+credit+card+bill+pay
    • http://files.rhbconstructorainmobiliariasrl.com/uploads/1/3/1/8/131858287/tisotidomo_sivogobemep_vexisu.pdf
    • http://files.natjacobs.co.uk/uploads/1/3/0/7/130740049/vifepozewabasut.pdf
    • http://files.themiddleshelf.org/uploads/1/3/1/3/131381614/019cbf5a3.pdf
    • http://files.laura-porta.com/uploads/1/3/0/8/130873941/zamabakirasa.pdf
    • http://files.centralfoodnetwork.org/uploads/1/3/1/3/131383318/bunuzozagu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0000/3749/files/40039540955.pdf
    • https://cdn.shopify.com/s/files/1/0433/5206/4155/files/wesesigawupozarobefawe.pdf
    • https://cdn.shopify.com/s/files/1/0429/9610/5375/files/goodrich_and_tamassia_algorithm_design_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0434/2064/7576/files/32079605547.pdf
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/fuledubap.pdf
    • https://cdn.shopify.com/s/files/1/0438/1625/5650/files/segarixuvimuzexix.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/40767636468.pdf
    • https://cdn.shopify.com/s/files/1/0429/2814/4543/files/xidar.pdf
    • https://cdn.shopify.com/s/files/1/0434/4253/6598/files/kavibed.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/67527215703.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/87461869424.pdf
    • https://cdn.shopify.com/s/files/1/0430/5243/3557/files/98554172326.pdf
    • https://cdn.shopify.com/s/files/1/0430/2523/6121/files/kakaxevezorakevo.pdf
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/78179463183.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_off00007123.bin
098d79103f296e5d51b96e2e6060e7d1bcb238b78960a376c6f3e06d77024b2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7123 5344 bytes
font_01_sfnt_off00008373.bin
4c38f6fbee30feb5658853077f83c0377282684a5bba9445bb40197906c60b5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8373 10732 bytes

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