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Analysis
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max time kernel
30s -
max time network
33s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
24/03/2023, 16:05
Static task
static1
Behavioral task
behavioral1
Sample
New Project Script - Linkvertise Downloader_I1-gKu1.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
New Project Script - Linkvertise Downloader_I1-gKu1.exe
Resource
win10v2004-20230220-en
General
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Target
New Project Script - Linkvertise Downloader_I1-gKu1.exe
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Size
10.8MB
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MD5
9ef88d8681a8606d5572078acfef47d5
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SHA1
7d78745444359b634c1fd8f0c4f5bcc11a601daf
-
SHA256
7d0f7d4dd28130bf130a16fc125a37e7fa4f56900fad7f02fadcf609788d1948
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SHA512
f9106049cf41fe67f1e97f1eb12bbb4a3c4dfc72252893aca3413c305ee62210b416d1ad160bf0c9b9a1313e404a406e400f74d3d49b13c0d0d5d363b8cc0ba5
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SSDEEP
196608:R38JJEU16hTZl583S0LJu+mzfDkzXJKUNWGJ3k2ZoXOM1ughp71:21MlCC0Ybzf4zZKUok5oXN8i1
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2028 New Project Script - Linkvertise Downloader_I1-gKu1.tmp -
Loads dropped DLL 3 IoCs
pid Process 1704 New Project Script - Linkvertise Downloader_I1-gKu1.exe 2028 New Project Script - Linkvertise Downloader_I1-gKu1.tmp 2028 New Project Script - Linkvertise Downloader_I1-gKu1.tmp -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6 New Project Script - Linkvertise Downloader_I1-gKu1.tmp Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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 New Project Script - Linkvertise Downloader_I1-gKu1.tmp Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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 New Project Script - Linkvertise Downloader_I1-gKu1.tmp Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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 New Project Script - Linkvertise Downloader_I1-gKu1.tmp -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 2 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1704 wrote to memory of 2028 1704 New Project Script - Linkvertise Downloader_I1-gKu1.exe 27 PID 1704 wrote to memory of 2028 1704 New Project Script - Linkvertise Downloader_I1-gKu1.exe 27 PID 1704 wrote to memory of 2028 1704 New Project Script - Linkvertise Downloader_I1-gKu1.exe 27 PID 1704 wrote to memory of 2028 1704 New Project Script - Linkvertise Downloader_I1-gKu1.exe 27 PID 1704 wrote to memory of 2028 1704 New Project Script - Linkvertise Downloader_I1-gKu1.exe 27 PID 1704 wrote to memory of 2028 1704 New Project Script - Linkvertise Downloader_I1-gKu1.exe 27 PID 1704 wrote to memory of 2028 1704 New Project Script - Linkvertise Downloader_I1-gKu1.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\New Project Script - Linkvertise Downloader_I1-gKu1.exe"C:\Users\Admin\AppData\Local\Temp\New Project Script - Linkvertise Downloader_I1-gKu1.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1704 -
C:\Users\Admin\AppData\Local\Temp\is-1KDQ9.tmp\New Project Script - Linkvertise Downloader_I1-gKu1.tmp"C:\Users\Admin\AppData\Local\Temp\is-1KDQ9.tmp\New Project Script - Linkvertise Downloader_I1-gKu1.tmp" /SL5="$70122,10376221,1235456,C:\Users\Admin\AppData\Local\Temp\New Project Script - Linkvertise Downloader_I1-gKu1.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies system certificate store
PID:2028
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
61KB
MD5e71c8443ae0bc2e282c73faead0a6dd3
SHA10c110c1b01e68edfacaeae64781a37b1995fa94b
SHA25695b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72
SHA512b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD57943b582c033df1b1fe9b2ff3db4841f
SHA19354babaf8ef588c048c88330aa282d2fc199a22
SHA256eef16a1b9f9c5a6f0e8d9f30785f2e004f6a13f1dfe170ab500d93c859c9893e
SHA5129488f5b0146d73c7e313c6cbb3fb019e341cc3adfdc4ade9ed6c45fcc68ccc0a47de4e8e8521e7bfa13d3f50c87f04ecc7cac84d6dbfccbde7fac8db5708c902
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Filesize
161KB
MD5be2bec6e8c5653136d3e72fe53c98aa3
SHA1a8182d6db17c14671c3d5766c72e58d87c0810de
SHA2561919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd
SHA5120d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff
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C:\Users\Admin\AppData\Local\Temp\is-1KDQ9.tmp\New Project Script - Linkvertise Downloader_I1-gKu1.tmp
Filesize3.4MB
MD5fbbad8149a1c6aed741101d3011757cb
SHA1badef69a28b857fdd0b9859552736faba9e8886a
SHA256d5f92ec4e4f095bea8fb56825333eaa6c3fb5e3b2dfc245bac058cdfb6cef4b8
SHA512edc6d6cba79cc6d595cdc72f448189e9d5f5b0208c09bbfdd6344cd029848ec155e5aa744eac437a13f14f61b0297308b36df90b190a138e4c34aa8bb45d3b42
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\Users\Admin\AppData\Local\Temp\is-1KDQ9.tmp\New Project Script - Linkvertise Downloader_I1-gKu1.tmp
Filesize3.4MB
MD5fbbad8149a1c6aed741101d3011757cb
SHA1badef69a28b857fdd0b9859552736faba9e8886a
SHA256d5f92ec4e4f095bea8fb56825333eaa6c3fb5e3b2dfc245bac058cdfb6cef4b8
SHA512edc6d6cba79cc6d595cdc72f448189e9d5f5b0208c09bbfdd6344cd029848ec155e5aa744eac437a13f14f61b0297308b36df90b190a138e4c34aa8bb45d3b42
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Filesize
1.8MB
MD543ce6d593abd5141a3139603f352ae05
SHA1a97c75e23d275dddfde15ef5fdf3ff3253c0992c
SHA25694e874f2702ea6be50e7d74864b66e7f763449c3db237803f3fad6adfd64ed3d
SHA512bfc527529e5f73ba190dfc5bd043175c7e2ae963b665d6d39421c29e025020f1d593dc88b7bee33d86ef6b4f7a4c5e1a0339df4e99cab6849a275d1dda9f439f
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Filesize
37KB
MD567965a5957a61867d661f05ae1f4773e
SHA1f14c0a4f154dc685bb7c65b2d804a02a0fb2360d
SHA256450b9b0ba25bf068afbc2b23d252585a19e282939bf38326384ea9112dfd0105
SHA512c6942818b9026dc5db2d62999d32cf99fe7289f79a28b8345af17acf9d13b2229a5e917a48ff1f6d59715bdbcb00c1625e0302abcfe10ca7e0475762e0a3f41b