Windows Analysis Report
Customer Correspondence.pdf

Overview

General Information

Sample Name: Customer Correspondence.pdf
Analysis ID: 1341932
MD5: 05b15eaec5ae0aec5e0d365371a46506
SHA1: 1035ff02f39425e34ca0c321087e4e97a0540187
SHA256: 04f6263002ba7f9de466fe899afc5d2d67d893b387b0dc4749a525095aa23d4d
Infos:

Detection

Score: 1
Range: 0 - 100
Whitelisted: false
Confidence: 80%

Signatures

Potential document exploit detected (unknown TCP traffic)
Uses a known web browser user agent for HTTP communication
Potential document exploit detected (performs HTTP gets)

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Potential document exploit detected (unknown TCP traffic)
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 173.222.228.86:443 -> 192.168.2.4:49741
Potential document exploit detected (performs HTTP gets)
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Source: global traffic TCP traffic: 192.168.2.4:49741 -> 173.222.228.86:443
Uses a known web browser user agent for HTTP communication
Source: global traffic HTTP traffic detected: GET /onboarding/smskillreader.txt HTTP/1.1Host: armmf.adobe.comConnection: keep-aliveAccept-Language: en-US,en;q=0.9User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) ReaderServices/23.6.20320 Chrome/105.0.0.0 Safari/537.36Sec-Fetch-Site: same-originSec-Fetch-Mode: no-corsSec-Fetch-Dest: emptyAccept-Encoding: gzip, deflate, brIf-None-Match: "78-5faa31cce96da"If-Modified-Since: Mon, 01 May 2023 15:02:33 GMT
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49741
Source: unknown Network traffic detected: HTTP traffic on port 49741 -> 443
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: unknown TCP traffic detected without corresponding DNS query: 173.222.228.86
Source: global traffic HTTP traffic detected: GET /onboarding/smskillreader.txt HTTP/1.1Host: armmf.adobe.comConnection: keep-aliveAccept-Language: en-US,en;q=0.9User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) ReaderServices/23.6.20320 Chrome/105.0.0.0 Safari/537.36Sec-Fetch-Site: same-originSec-Fetch-Mode: no-corsSec-Fetch-Dest: emptyAccept-Encoding: gzip, deflate, brIf-None-Match: "78-5faa31cce96da"If-Modified-Since: Mon, 01 May 2023 15:02:33 GMT
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe File created: C:\Users\user\AppData\Local\Temp\acrobat_sbx\NGL\NGLClient_AcrobatReader123.6.20320.6 2023-11-13 20-12-27-854.log Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\SystemCertificates\CA Jump to behavior
Source: classification engine Classification label: clean1.winPDF@14/43@0/1
Source: unknown Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe" "C:\Users\user\Desktop\Customer Correspondence.pdf
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe" --backgroundcolor=16777215
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --log-severity=disable --user-agent-product="ReaderServices/23.6.20320 Chrome/105.0.0.0" --lang=en-US --user-data-dir="C:\Users\user\AppData\Local\CEF\User Data" --log-file="C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\debug.log" --mojo-platform-channel-handle=2088 --field-trial-handle=1728,i,622882712890368271,10944003935700741837,131072 --disable-features=BackForwardCache,CalculateNativeWinOcclusion,WinUseBrowserSpellChecker /prefetch:8
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe" --backgroundcolor=16777215 Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --log-severity=disable --user-agent-product="ReaderServices/23.6.20320 Chrome/105.0.0.0" --lang=en-US --user-data-dir="C:\Users\user\AppData\Local\CEF\User Data" --log-file="C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\debug.log" --mojo-platform-channel-handle=2088 --field-trial-handle=1728,i,622882712890368271,10944003935700741837,131072 --disable-features=BackForwardCache,CalculateNativeWinOcclusion,WinUseBrowserSpellChecker /prefetch:8 Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe File created: C:\Users\user\AppData\Local\Adobe\Acrobat\DC\SharedDataEvents-journal Jump to behavior
Source: Window Recorder Window detected: More than 3 window changes detected
Source: Customer Correspondence.pdf Initial sample: PDF keyword /JS count = 0
Source: Customer Correspondence.pdf Initial sample: PDF keyword /JavaScript count = 0
Source: A919b7abe_151ttyc_5c8.tmp.0.dr Initial sample: PDF keyword /JS count = 0
Source: A919b7abe_151ttyc_5c8.tmp.0.dr Initial sample: PDF keyword /JavaScript count = 0
Source: Customer Correspondence.pdf Initial sample: PDF keyword /EmbeddedFile count = 0
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
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Behavior
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Slideshow Behavior Animation
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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 process2 2 Behavior Graph ID: 1341932 Sample: Customer Correspondence.pdf Startdate: 13/11/2023 Architecture: WINDOWS Score: 1 6 Acrobat.exe 20 73 2->6         started        process3 8 AcroCEF.exe 69 6->8         started        process4 10 AcroCEF.exe 4 8->10         started        dnsIp5 13 173.222.228.86, 443, 49741 AKAMAI-ASUS United States 10->13
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
173.222.228.86
 unknown United States
16625 AKAMAI-ASUS false