PDF malware analysis — malicious · 43fab5be6b0c51aa

MALICIOUS

PDF

76.5 KB Created: 2021-03-21 23:22:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20

MD5: 01bc863c93610085ac8e384d2b85399a SHA-1: 27debbc9a8711e6f716570f6283cd878b633a0d0 SHA-256: 43fab5be6b0c51aa41ecd642157939e2f2851642b2f4a8e041aaf27a79c82f1e

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document is identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or redirection mechanism to host malicious content. The document body, though heavily obfuscated, contains keywords related to PDF downloads, reinforcing the phishing lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://soxebez.ru/wix?keyword=dumplin+julie+murphy+pdf+download PDF link annotation
- http://noxavikadovul.mypressonline.com/casting_defects_download.pdfIn PDF document text
- https://cdn.sqhk.co/jotepomi/ihcpehd/denasipowitorunev.pdfIn PDF document text
- http://myyshooop227.site/xoradepasam8g8eb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379035/normal_5fc7493edf915.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393193/normal_5ffd752a07ee6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403129/normal_6009c4c170bba.pdfIn PDF document text
- https://cdn.sqhk.co/pininipata/jsjfjjT/asteroid_game_space_shooter.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480594/normal_60353bcd1b32d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424040/normal_6051be190538a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365606/normal_5feec4a879e7c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371799/normal_5ff0a93eabfeb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4477863/normal_603ae9e15d9f6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390374/normal_60241a97d9b32.pdfIn PDF document text
- http://lazirog.mywebcommunity.org/31701643514.pdfIn PDF document text
- http://soinjaga.ru/how_to_connect_a_cctv_dvr_to_the_internetlhyas.pdfIn PDF document text
- https://cdn.sqhk.co/vexapalas/07hdRAd/94659107696.pdfIn PDF document text
- https://cdn.sqhk.co/binebelezux/micXifI/xolupoxazul.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476593/normal_604e2bf52089b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454303/normal_60476fd2366c6.pdfIn PDF document text
- http://goloszauniver.fun/easy_homemade_vanilla_cake_from_scratch8k1ar.pdfIn PDF document text
- http://mejumafegebameg.mygamesonline.org/basic_excel_test_for_interview.pdfIn PDF document text
- http://glasshookahcatering.com/f2_audio_songs_telugu_freeak0j4.pdfIn PDF document text
- http://bibivire.mygamesonline.org/jerry_kuhnhausen_1911_shop_manual_vol_2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384143/normal_602ba4fb23e53.pdfIn PDF document text
- https://pdfnations.com/0062327194MeetIn 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://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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ddfe.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDDFE	5172 bytes
SHA-256: `7be529634dc8e264e4d599621cb3980bb1e2e5cb8af14c2d4f6506e438cfb94f`
`font_01_sfnt_off0000ef77.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF77	10928 bytes
SHA-256: `867e25c60631cd2e18f4a982c76b552ed76f0ec847287d291f2521f08bf7b74a`
`font_02_sfnt_off000114c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x114C0	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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