Malicious PDF — malware analysis report

Static analysis result for SHA-256 603356553387ca30…

MALICIOUS

PDF

43.5 KB Created: 2020-08-20 20:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad61510d846c603d5e17a62344d76536 SHA-1: 3feeda78e9c63681bb68ce202d7cb93a55ef9e5b SHA-256: 603356553387ca30030e89cf06a9d7bab8ea59269904cac6a1274ef8715f48d8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links, one of which is a known malicious redirector. The document body text, though partially garbled, includes a lure for a "new bollywood song in 1080p" and the malicious URL. This suggests an attempt to trick the user into visiting a malicious site, likely for further exploitation or phishing.

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=new+bollywood+song++in+1080p
    • http://files.sapodesolis.com/uploads/1/3/1/3/131380146/8914564.pdf
    • http://files.cincyfirstladiesforhealth.org/uploads/1/3/1/4/131437515/2907859.pdf
    • http://files.drmichaelcolgan.com/uploads/1/3/0/7/130740193/kigeduvexejebus_vesatugexogenuf_luwewawekoragi.pdf
    • http://mefafumam.jamicurtis.com/uploads/1/3/0/9/130969265/fejenafuseb.pdf
    • http://vixiradiz.animalmagicminizoo.com/uploads/1/3/0/7/130775934/salalinesolobu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/chatterjee_parasitology_book_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/0582/9532/files/xewepotinuvuzovam.pdf
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/32983582660.pdf
    • https://cdn.shopify.com/s/files/1/0431/6846/5053/files/worinum.pdf
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/tubodenugunodi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2465/files/astral_projection_erin_pavlina.pdf
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/kejaxuzigodopevusujet.pdf
    • https://cdn.shopify.com/s/files/1/0434/6209/9097/files/bs_mathematics_notes.pdf
    • https://cdn.shopify.com/s/files/1/0440/3258/9989/files/zavomat.pdf
    • https://cdn.shopify.com/s/files/1/0447/4375/3879/files/tepunanipudopiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/3080/5669/files/nuzozapuvijukasuwu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9513/7181/files/national_osteoporosis_guidelines_uk.pdf
    • https://cdn.shopify.com/s/files/1/0435/1462/6202/files/hp_blackberry_android_terbaru_2019.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ac9.bin
052a67dcb6ed54a2e860959d563a0860cfbbcc31f7e96514da93fc84287ffc0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC9 5512 bytes
font_01_sfnt_off00007dba.bin
f965cadd41f309dd3d7c9317061c338010b8d5c42832aac0f6a53c6d24234380		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBA 10392 bytes

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