PDF malware analysis — malicious · cf6714d4301a4f69

MALICIOUS

PDF

904.5 KB

MD5: 6e9b8cbfcf4277b4d64e12cba70d62b7 SHA-1: cba64eaf908f9c17ab3a9055d35ab9bd775558c1 SHA-256: cf6714d4301a4f69c0684d53b9cfa92de368a1c046e6225e6c227aa611b7a0d6

116 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell T1566.001 Phishing: Spearphishing Attachment

The PDF file contains a critical heuristic indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This suggests the document is designed to exploit this vulnerability upon opening. Additionally, embedded JavaScript and an embedded file payload were detected, indicating the potential for further malicious activity such as downloading and executing additional malware. The presence of an embedded file, specifically 'embedded_file_obj0003.bin', further supports the malicious nature of the document.

Heuristics 9

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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. (matched inside decoded stream)
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. (matched inside decoded stream)
PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE

PDF has 1 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
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.
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 http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xfa/promoted-desc/

Extracted artifacts 13

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0001.bin` `0bd8e09f0b57046bfa9d32d75735e0f712208f4219e087c77c12b93399511db8`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0xD43AC	163 bytes
`embedded_file_obj0002.bin` `c6d8caba340d2a2709f8df90ea7da522242f0886d2d3e36e359560694bc8be3a`	pdf-embedded-file	PDF EmbeddedFile object 2 at offset 0xD449D	1597 bytes
`embedded_file_obj0003.bin` `ba30a7830dbc5f65785aef3134d3c6fba0008b553d3cd0fa771db4b417443d68`	pdf-embedded-file	PDF EmbeddedFile object 3 at offset 0xD4794	24973 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).
`embedded_file_obj0004.bin` `560dcced2df6f65386a395771a4721a00980be4d89cc752639746882322da5c3`	pdf-embedded-file	PDF EmbeddedFile object 4 at offset 0xD8BDD	2518 bytes
`embedded_file_obj0005.bin` `500856001a9edb17a299f41c8b34871c12c85d56ec8eff03ef181fca24bb96b5`	pdf-embedded-file	PDF EmbeddedFile object 5 at offset 0xD8ED9	200 bytes
`embedded_file_obj0006.bin` `ce9178a56f9138f5a48e518587c7ff14b65860f1d5be3a8b76dbf047b708a4fb`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0xD8FCD	199 bytes
`embedded_file_obj0007.bin` `ddeb4f1c71093289e0b7865d27dcb19d244efd735cb6f00ec8078a297821e005`	pdf-embedded-file	PDF EmbeddedFile object 7 at offset 0xD90C0	1533 bytes
`embedded_file_obj0008.bin` `2ebdd7efeaa1190ff6bad8cbd649b313e3969564018f204e7385b97c2fab1e19`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xD937B	80 bytes
`embedded_file_obj0009.bin` `4a60a9864cdf7382475d51051a03fdc43b32c31eb508893ccfccece34957f9f1`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0xD9424	56 bytes
`stream_002_off00000363.js` `f8721569904600df33f536ddc9f4942717077f9d6c3c4253a8f4de5650fc6531`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x363	1367 bytes
`stream_003_off00000549.js` `91ea259764c68d27b8981a339c02d8ea92224ae5c0d0cd0a7c8f3d645d599090`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x549	902 bytes
`objstm_0044_00.bin` `882dbe8f645af46cefc5e2695c3912cf111c9293da733274a1504212921b2c2d`	pdf-objstm-decoded	PDF /ObjStm 44 0 obj (inflated)	1006 bytes
`font_00_sfnt_off000d9529.bin` `3a47365ba29be93b97be381e34ec3c7ef0a10e0f82cdb3dadd6fb11f2800fdb3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD9529	36717 bytes

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