PDF malware analysis — malicious · 30a3deac76a0006c

MALICIOUS

PDF

80.0 KB Created: 2021-09-17 21:57:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25

MD5: 30ab30b38890ac525126bdea5bcd8f5b SHA-1: 9227ad4d6853897e87c9b1f0b53f6b7cdb0e5c18 SHA-256: 30a3deac76a0006c18d191f846ae07546c440fbac5e5bd0e2c598a29dca34f66

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The sample is identified as malicious by ClamAV and exhibits characteristics of a phishing or malware distribution lure. The presence of an embedded JavaScript stream (T1059.007) and numerous external URIs, many hosted on compromised or disposable domains, indicates an attempt to redirect users to malicious content or download further stages. The document likely serves as a spearphishing attachment (T1566.001) to initiate a malicious chain.

Machine Learning

Nyx PDF Classifier suspicious score 0.3396

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
External URI info PDF_URI

PDF contains an external URL action
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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://synerhu.ru/uplcv?utm_term=task+sharing+app+android PDF link annotation
- http://shepardinteriordesign.com/rw/upload/file/73346629275.pdfIn PDF document text
- https://luxesystem.site/js/ckfinder/userfiles/files/jikubiwisura.pdfIn PDF document text
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/dc89ed1dd12221da4bb943de7dbe6ea4/jigitugaruzilibikarowi.pdfIn PDF document text
- https://ntct.dz/ckfinder/userfiles/files/jinevoxatiwevoredo.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131d091d461a---konefaxakiv.pdfIn PDF document text
- https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/cd85e9a70045f22b3014f58b2db2cb3f/19317978776.pdfIn PDF document text
- http://igs.compcierge-asia.com/ckfinder/userfiles/files/24093138804.pdfIn PDF document text
- https://edu-mate.kr/_UploadFile/Images/file/85734163305.pdfIn PDF document text
- http://filtrydokoparek.pl/img/all/roxixolitukezekam.pdfIn PDF document text
- http://safaraval.com/basefile/safaravalcom/files/minalukibure.pdfIn PDF document text
- https://www.ksmt.edu.np/assets/ckfinder/userfiles/files/vukupojuzalowejibuj.pdfIn PDF document text
- http://tractortools.cz/ckfinder/userfiles/files/27325511504.pdfIn PDF document text
- https://protectname.xyz/whoisprivacy/userfiles/files/85895004615.pdfIn PDF document text
- http://vizcsap.hu/files/file/wetoxanilalolagufizit.pdfIn PDF document text
- https://www.puskinas.lt/ckfinder/userfiles/files/sasosagusoviwedibal.pdfIn PDF document text
- https://baongochoa.com/upload/file/magatupilotewuna.pdfIn PDF document text
- https://malashealthcare.com/userfiles/files/36094517655.pdfIn PDF document text
- http://autolubitel-irk.ru/userfiles/file/wuzumakakevubib.pdfIn PDF document text
- http://gysanya.com/upload/file/210901153415256447x111cdhiicox.pdfIn PDF document text
- https://panama4d.com/contents/files/59960292723.pdfIn PDF document text
- http://thucphamchucnangmy.vn/uploads/files/xozugosawe.pdfIn PDF document text
- https://skatrip.com/basefile/skatripcom/files/94415898529.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e2b3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE2B3	10452 bytes
SHA-256: `87c627574f7d5759260bb265b175f5be45996bf428f1035c3cb0f25be84ba8e7`
`font_01_sfnt_off0000fa1a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA1A	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0001122c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1122C	17968 bytes
SHA-256: `0be5f1fcea30c181b1c11b121e696b5c51a8ec02ce9587cf0ae4cd2af01f6a07`

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