Overview
overview
3Static
static
335256345/A...at.exe
windows7-x64
135256345/A...at.exe
windows10-2004-x64
135256345/A...t.html
windows7-x64
135256345/A...t.html
windows10-2004-x64
135256345/A...oc.vbs
windows7-x64
135256345/A...oc.vbs
windows10-2004-x64
135256345/A...ad.exe
windows7-x64
135256345/A...ad.exe
windows10-2004-x64
135256345/A...d.html
windows7-x64
135256345/A...d.html
windows10-2004-x64
135256345/A...nt.exe
windows7-x64
135256345/A...nt.exe
windows10-2004-x64
135256345/A...er.exe
windows7-x64
135256345/A...er.exe
windows10-2004-x64
135256345/A...m.html
windows7-x64
135256345/A...m.html
windows10-2004-x64
135256345/c...m.html
windows7-x64
135256345/c...m.html
windows10-2004-x64
135256345/c...1.html
windows7-x64
135256345/c...1.html
windows10-2004-x64
135256345/c...l.html
windows7-x64
135256345/c...l.html
windows10-2004-x64
135256345/c...P.html
windows7-x64
135256345/c...P.html
windows10-2004-x64
135256345/c...g.html
windows7-x64
135256345/c...g.html
windows10-2004-x64
135256345/c...r5.exe
windows7-x64
135256345/c...r5.exe
windows10-2004-x64
135256345/c...r5.htm
windows7-x64
135256345/c...r5.htm
windows10-2004-x64
135256345/c...e4.htm
windows7-x64
135256345/c...e4.htm
windows10-2004-x64
1Analysis
-
max time kernel
141s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04/02/2024, 04:54
Static task
static1
Behavioral task
behavioral1
Sample
35256345/Appendix/BroadCast/MultiCastChat.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
35256345/Appendix/BroadCast/MultiCastChat.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
35256345/Appendix/BroadCast/MultiCastChat.html
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
35256345/Appendix/BroadCast/MultiCastChat.html
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
35256345/Appendix/BroadCast/MultiCastChatDoc.vbs
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
35256345/Appendix/BroadCast/MultiCastChatDoc.vbs
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
35256345/Appendix/NetAnts/Download.exe
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
35256345/Appendix/NetAnts/Download.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
35256345/Appendix/NetAnts/Download.html
Resource
win7-20231129-en
Behavioral task
behavioral10
Sample
35256345/Appendix/NetAnts/Download.html
Resource
win10v2004-20231222-en
Behavioral task
behavioral11
Sample
35256345/Appendix/chat/NetClient.exe
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
35256345/Appendix/chat/NetClient.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
35256345/Appendix/chat/NetServer.exe
Resource
win7-20231129-en
Behavioral task
behavioral14
Sample
35256345/Appendix/chat/NetServer.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral15
Sample
35256345/Appendix/phonecall/语音电话/modem.html
Resource
win7-20231215-en
Behavioral task
behavioral16
Sample
35256345/Appendix/phonecall/语音电话/modem.html
Resource
win10v2004-20231215-en
Behavioral task
behavioral17
Sample
35256345/chap1/ChatRoom(Csocket)/Example2_ChatRoom.html
Resource
win7-20231215-en
Behavioral task
behavioral18
Sample
35256345/chap1/ChatRoom(Csocket)/Example2_ChatRoom.html
Resource
win10v2004-20231215-en
Behavioral task
behavioral19
Sample
35256345/chap1/ChatRoom(Winsock)/Example1.html
Resource
win7-20231215-en
Behavioral task
behavioral20
Sample
35256345/chap1/ChatRoom(Winsock)/Example1.html
Resource
win10v2004-20231215-en
Behavioral task
behavioral21
Sample
35256345/chap2/EnumProtocal/EnumProtocal.html
Resource
win7-20231215-en
Behavioral task
behavioral22
Sample
35256345/chap2/EnumProtocal/EnumProtocal.html
Resource
win10v2004-20231215-en
Behavioral task
behavioral23
Sample
35256345/chap2/GetIP/GetIP.html
Resource
win7-20231215-en
Behavioral task
behavioral24
Sample
35256345/chap2/GetIP/GetIP.html
Resource
win10v2004-20231215-en
Behavioral task
behavioral25
Sample
35256345/chap2/GetNetSetting/GetNetSetting.html
Resource
win7-20231129-en
Behavioral task
behavioral26
Sample
35256345/chap2/GetNetSetting/GetNetSetting.html
Resource
win10v2004-20231222-en
Behavioral task
behavioral27
Sample
35256345/chap2/Local/Chapter5.exe
Resource
win7-20231129-en
Behavioral task
behavioral28
Sample
35256345/chap2/Local/Chapter5.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral29
Sample
35256345/chap2/Local/Chapter5.htm
Resource
win7-20231215-en
Behavioral task
behavioral30
Sample
35256345/chap2/Local/Chapter5.htm
Resource
win10v2004-20231215-en
Behavioral task
behavioral31
Sample
35256345/chap2/Local/Page4.htm
Resource
win7-20231129-en
Behavioral task
behavioral32
Sample
35256345/chap2/Local/Page4.htm
Resource
win10v2004-20231222-en
General
-
Target
35256345/Appendix/BroadCast/MultiCastChat.html
-
Size
262B
-
MD5
419475a05af008a3942d999d95e269c6
-
SHA1
077f6baf43f929ff3e7205aa9b61fd52c175f4df
-
SHA256
11c081d37a3b4e343cdbe374af5538a5c4c9482175455c4f90263fc9c2ee4dc7
-
SHA512
a191120ae64c74792e4c1a7ed5b903c0c486a1dbb26cd6b693b6bb402d0c1bceda8a28316245c3ae78831e04b09b6541db625df43a367cb07613eca8bc178344
Malware Config
Signatures
-
description ioc Process Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31086374" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1384188134" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1384188134" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "413787450" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\IESettingSync IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31086374" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = b09b24542657da01 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000005f2859d464fb564ea9e97dd009a434cc000000000200000000001066000000010000200000006396224386aca83ada215e6aaf5c69eb236a9f21796b144d23a6dc983dc6ef44000000000e80000000020000200000004022bb64478ee51faf1d769a10c57e52bb062a931c0d1693d2604dc41a9eb1bb200000003f1122d1e3eb6f0515f0b96ff6fbe84be9b2184da171f356207933396d365579400000007dbfdf0779b7e358e7f4c929106ba7903daf3931610a1e8afd6c229fe7b83d0792e101936b04bd60aad8c00f9ed64b2c35393f4ad4060656cb6443da187cf180 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31086374" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1396531036" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000005f2859d464fb564ea9e97dd009a434cc000000000200000000001066000000010000200000008cfbd7858f385c7b5b08574d70d38ca280db4de8965238e0878fe73fe1ec4045000000000e800000000200002000000001da7498adb59a0ca1402078ab70b18a431e026b262e6404158dcaf54bda60172000000035d7d315e43dc7199aeccb2cf46c98aa41fd24b5cb5094a377318109040dbc09400000003bda06a384e2a63a24e5543e94e38172cd80304df66f457784018066080963e2bfbb8e3e949fa7c319378aac8a3f43832814d51a4d5ed138bb63a4b2b2cecb74 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 80ae37542657da01 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7E19D886-C319-11EE-BCD9-524326B4BB5C} = "0" iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4080 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4080 iexplore.exe 4080 iexplore.exe 4928 IEXPLORE.EXE 4928 IEXPLORE.EXE 4928 IEXPLORE.EXE 4928 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4080 wrote to memory of 4928 4080 iexplore.exe 83 PID 4080 wrote to memory of 4928 4080 iexplore.exe 83 PID 4080 wrote to memory of 4928 4080 iexplore.exe 83
Processes
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\35256345\Appendix\BroadCast\MultiCastChat.html1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4080 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4080 CREDAT:17410 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4928
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD552bfc02b370f1b48b834ce1c58ad6560
SHA1d3dbca3ed04caabf69ec8d525a83cde0919809cf
SHA256fce02a7cb2ed194e21949d8a394e69f1dd30c4c517addc831018b8a0b7235a97
SHA5125fb4c1b2d4173f5de1237e2fd55b9081b99756217d5d639da3e0e1bbe339d87be2e9b732ef783446bdedee2af8730e4bedb3184d58ba0bce0881ddc199495289
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD586634422c07d21328a72abf5a8c38d36
SHA136dbaf0dd73a67a1e587dde9005084deab743027
SHA2560e5ee69acc56aba958e17a7b171454f33479cd336ef661b9c19bebab924613d2
SHA5121e660e1b339466768ab2b9f5ebe9c63daface29ef0ec397f6f9cea7bf7671cefc8fb4193858f5a1a2d92cb96c2afa7e17a56845efe51820946a3b2999a672bca
-
Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee