Malicious PDF — malware analysis report

Static analysis result for SHA-256 80d2696266d8cf9a…

MALICIOUS

PDF

78.4 KB Created: 2021-06-08 20:22:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6ac2f288ef8dbaa011140d89c9c46ec7 SHA-1: cb913eaf01390a521912e1c4b371c3266aac5a1d SHA-256: 80d2696266d8cf9add315289edd751bd08d73b0d33410c627b256474ed7ced82
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://pistant.ru/pbw?utm_term=past+simple+past+continuous+online+test PDF link annotation
    • https://tetavezodumop.weebly.com/uploads/1/3/4/6/134645623/tugiseke.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412902/normal_5fe46fbf33360.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374372/normal_5fd9d695d3dc9.pdfIn PDF document text
    • https://musaseruvadix.weebly.com/uploads/1/3/4/5/134581888/6627678.pdfIn PDF document text
    • https://jikudirag.weebly.com/uploads/1/3/4/0/134040407/2548588.pdfIn PDF document text
    • https://pixovifovefesuv.weebly.com/uploads/1/3/4/6/134626719/3091911.pdfIn PDF document text
    • https://jisogixisizula.weebly.com/uploads/1/3/4/3/134328009/zekagufedewaxalul.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://xetibubib.pbworks.com/w/file/fetch/144575280/jason_stephenson_guided_meditation_sleep_chakra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e915cff-ee9b-44f8-b560-98c4b22147ad/saxowesuvapemes.pdfIn PDF document text
    • http://mikabipi.pbworks.com/f/dream_league_soccer_2015_apk_hack_download.pdfIn PDF document text
    • http://dokadeku.pbworks.com/f/dls_19_hack_unlimited_coins_profile.dat.pdfIn PDF document text
    • http://bomasasawavi.pbworks.com/w/file/fetch/144773262/tatesugozefuziwenotupoge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72b7241b-42e1-4cbc-85d5-02754298cdc6/45292605771.pdfIn PDF document text
    • http://sodogugokaf.pbworks.com/f/which_beanie_babies_are_worth_anything.pdfIn PDF document text
    • http://kakexigodelo.pbworks.com/f/how_to_install_minecraft_orespawn_mod_1.7.10.pdfIn PDF document text
    • http://wigonewakil.pbworks.com/w/file/fetch/144768741/brian_froud_faeries_oracle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7023814-269a-4d9a-be9f-b78c1b5bec69/dipefaxiras.pdfIn PDF document text
    • http://sozakuvepar.pbworks.com/w/file/fetch/144507012/how_to_plan_for_a_planned_c_section.pdfIn PDF document text
    • http://wiwedano.pbworks.com/w/file/fetch/144421068/kivenabasepevuvobalex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ec4344a-7618-44bc-b2ca-59a7543429da/is_doordash_free_delivery.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE977 4864 bytes
SHA-256: f88890228dde493c85123545c6182041a0454cbd2e4a61b8563934bde956b459
font_01_sfnt_off0000f9e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E7 10464 bytes
SHA-256: 1793e151b69fdc5f3c2e96bb4be1aa0017749d380fd6c0f4b217a0d2eb3a9eaf
font_02_sfnt_off00011d88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D88 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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