PDF malware analysis — malicious · fe92d1de98a55e92

MALICIOUS

PDF

210.3 KB

MD5: b169a88d8ae85be72580f1c9a029314d SHA-1: 157f620395b3c10429b96f02e7d23a6a2e61d023 SHA-256: fe92d1de98a55e92cfb4fe5b3569a72bb219d2d5d5ce7ab1c2655aa6e4a6e76e

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The PDF file contains embedded JavaScript and triggers the CVE-2010-2883 exploit for Adobe Reader. This indicates an attempt to execute malicious code upon opening the document. The presence of JavaScript actions and embedded JS streams, along with the critical exploit firing, strongly suggests a malicious intent, likely to download and execute a secondary payload.

Heuristics 6

Adobe Reader CoolType SING font exploit — CVE-2010-2883 critical CVE likely CVE_2010_2883

PDF embeds a TrueType/OpenType font with an actual SING table and pairs it with JavaScript heap-spray shellcode. This matches the public Adobe Reader CoolType SING exploit shape for CVE-2010-2883.
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0029_000.js` `e46da42ae220a4254575a3616036c2fd921d312599b0014d3e77b974e6de9d7c`	pdf-javascript-stream	PDF /JS object 29 at offset 0x2A23	14982 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).
`javascript_obj0038_001.js` `2c0b66ec50073178ddc3de2aaf0627ef83819a8f71c118ff3b075b4bd82749fe`	pdf-javascript-stream	PDF /JS object 38 at offset 0x1D44	1242 bytes
`javascript_obj0039_002.js` `d8bbcc5984e6bec8996e18881fad0486ff520c9b9f03ee0fb9694ddfc412340d`	pdf-javascript-stream	PDF /JS object 39 at offset 0x2316	1572 bytes
`stream_004_off00000cd0.bin` `69e17a0038b9273e6d005ef52313a832cb41b9cf9713d6134d0cf9f2e59298a7`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xCD0	434 bytes
`font_00_sfnt_off00001313.bin` `fc85f44193ccd402987935418c4f5fdf6802c96450b789e7fce04f9791933021`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1313	7965 bytes
`font_01_sfnt_off00001ac5.bin` `1e827515a464087cdace63e3578c118b45a657ed40cdbb9de7eead35c9b593ba`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1AC5	7965 bytes

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