PDF malware analysis — malicious · 8c1a84bd85d0a4f6

MALICIOUS

PDF

52.3 KB Created: 2020-10-26 11:23:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31

MD5: 7afebc61695019b723a2ded573f7c9a0 SHA-1: 7c42a65c7c232a087368f61a37db426b35875d85 SHA-256: 8c1a84bd85d0a4f62ce5e08a926eead66179bdc42c9d968687803d3526de1217

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with one critical heuristic identifying it as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for popular content downloads, which aligns with the redirector's URL. The presence of many links, including those pointing to Shopify, suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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/123?keyword=ali+gatie+its+you+mp3+download+wapka In PDF document text
- https://cdn-cms.f-static.net/uploads/4409393/normal_5f953d6e5ccd9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405409/normal_5f9282f0cbe5f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366653/normal_5f87210ba6587.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408706/normal_5f938916693e9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370987/normal_5f893e829ebda.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385612/normal_5f8e191e0d322.pdfIn PDF document text
- https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/0e0cd.pdfIn PDF document text
- https://nosekuge.weebly.com/uploads/1/3/2/7/132740467/9b66150382.pdfIn PDF document text
- https://zotadipijipas.weebly.com/uploads/1/3/4/4/134467791/d4728ca41a5c.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
- https://cdn.shopify.com/s/files/1/0461/3698/3720/files/51134156013.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/2381/7623/files/sandstrom_full_motion_tv_bracket_instructions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0268/7513/4135/files/91113997752.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/8030/9666/files/gagogarozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0500/4312/5917/files/julomitavajonabejoxapemu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1652/7770/files/74019773150.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6035/3429/files/quality_control_in_histopathology_laboratory.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/1673/0799/files/auckland_council_soakage_design_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/5322/6433/files/fatixapewojewefimegexi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/9661/9193/files/67141326537.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2385/8845/files/pioneer_auto_radio_owners_manual.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000520d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x520D	2972 bytes
SHA-256: `a21f3253208d83fc270963a115f35909b17d2a26402de2a2806b66ea14c7e36f`
`font_01_sfnt_off00005cb3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5CB3	5476 bytes
SHA-256: `0a16087c4b335bda1c67fb191dbf7dfc72d959c6a4a8bb292a6267e57aca3342`
`font_02_sfnt_off00006f5d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F5D	11160 bytes
SHA-256: `142e5cba7c88b62d315391dd912fba10a3d897321d06901aaf4da2f9cd7a7831`
`font_03_sfnt_off00009533.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9533	18748 bytes
SHA-256: `66d9a6cb0f740f36572078f796310649d4cc9ffb97e25d471935ffe3df70632d`
`font_04_sfnt_off0000b29a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB29A	4324 bytes
SHA-256: `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`

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