hxxp://asahi-net[.]or[.]jp

Analysis

max time kernel
97s
max time network
145s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
11/10/2022, 06:09

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General

Target

http://asahi-net.or.jp

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 63 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "372233550"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU\Size = "10"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "148"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "40"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\Total = "18"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{478CBAE1-492B-11ED-A5BF-5242C1400D5F} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU\Factor = "20"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\ = "40"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\Total = "148"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU\Enable = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\ = "148"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\NumberOfSubdomains = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "18"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\ = "96"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000048ca5449a4d21846ba8a995ea0abd35a00000000020000000000106600000001000020000000cca77dd954308a5c7efc0088d531f44c1587cbe6a2c869a1836ca10c25de19f7000000000e8000000002000020000000929dd22efe945f8a871f2d0d0cd27e447923f6d262fd72703f834621210647a12000000058bf8178571311dbff8ac10422c000488ece2ea211f41c95987a5840fb3aec49400000000ec9c17d800ca53ca66953d5597f8c99d89f15a53458be7d86a18ee38ba6e4905af68d489e43e5cfb03d5f0df86e0d46b84d4ff9ee17ccf14d38b492dbed6cb9	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "120"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\ = "120"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "96"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = e080e52338ddd801	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\Total = "40"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "66"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\Total = "66"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\Total = "120"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\ = "66"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU\InitHits = "100"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\ = "18"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\asahi-net.jp\Total = "96"	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1448	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1448	iexplore.exe
1448	iexplore.exe
1180	IEXPLORE.EXE
1180	IEXPLORE.EXE
1180	IEXPLORE.EXE
1180	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 1180	1448	iexplore.exe	28
PID 1448 wrote to memory of 1180	1448	iexplore.exe	28
PID 1448 wrote to memory of 1180	1448	iexplore.exe	28
PID 1448 wrote to memory of 1180	1448	iexplore.exe	28

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://asahi-net.or.jp
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1448 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1180

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
60KB

MD5
d15aaa7c9be910a9898260767e2490e1

SHA1
2090c53f8d9fc3fbdbafd3a1e4dc25520eb74388

SHA256
f8ebaaf487cba0c81a17c8cd680bdd2dd8e90d2114ecc54844cffc0cc647848e

SHA512
7e1c1a683914b961b5cc2fe5e4ae288b60bab43bfaa21ce4972772aa0589615c19f57e672e1d93e50a7ed7b76fbd2f1b421089dcaed277120b93f8e91b18af94

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
31b502e2480193617d4104f9b5e711e9

SHA1
39227e83b43eb1e7c21a0e1b3b58118cac51290d

SHA256
8f1ebc631fc8e7ce87f5913d1ffd8fff1839939d2410c395535bc3ef4058a141

SHA512
c587de074224e5210224cb1186a77f1033841257d3be1506c0fa07245cfe1eed53569ef2fd4cf2d810f95d3b3e83c6bf099515eca163d1292c31dbb20d96e341

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
d12a402096c5dc53413d2aa1783a47b8

SHA1
9b1ec9bfc6cb6c48c09f6440631aefc06af732d8

SHA256
eaab1cf77b8d65d0476c30cf7b122bfd0133f21cb9019dfcc706bb970f290b65

SHA512
bf7a3fd989c715be2a8ed42da6e516a8542038c5f6f2a206a6698752243d699c4bfd189757d473cc18a79b51653e4257aa0c83e4044440b556fb75cf29806105

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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\309axvf\imagestore.dat

Filesize
19KB

MD5
a3df73805535b2fe6a8336bb8df7dacb

SHA1
1895ea09a7fab6fd2ff43826cdef85823f8fb274

SHA256
e49d26a0bcdfe70aac17417d130c5c9dbc5946c78ade2c62fc463adef9eed98b

SHA512
4563c67562f90528655160d4f6742bdd8f6dc269fed523a4adcea251047e8301f42d47ae78c281a6df67273e5800d90f5d1d613c8351602f01b7af349ccd7113

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\9CBCIRMZ.txt

Filesize
603B

MD5
a64ee6950704022f9566941f30384229

SHA1
bcc6fda5922a8e175b4fd6353c341d22d33016df

SHA256
00af29675a191628e11b7fe753a64172e5e7121c23168b019d0923f282a2e73e

SHA512
5775631ab8a420a44d15f989ff187bbab95bfea2a228df7098e826d3a41c7d5e6dddec83aa8221a75ff4b334c35eaca3de6237a9c6462146f99b8040a85ab524

Download Submit