Analysis
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max time kernel
100s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
20-10-2022 06:43
Static task
static1
Behavioral task
behavioral1
Sample
4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe
Resource
win10v2004-20220812-en
General
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Target
4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe
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Size
581KB
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MD5
5be7341ff2b3e50ef1f22128dd6f53c7
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SHA1
49be21605a09950d1290dc62a0fcf47e064e9d53
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SHA256
4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94
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SHA512
6960bb3306a22c8c31eb4e8ab72a31c6328888798d9405cc267d54d48c4da4c8cbfddeae415228242bf797829e082c3ce857074a4c3e9cc0cc3a65a93dedc805
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SSDEEP
12288:uoMDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0UO:ufplNFgxG5eZngb0F
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 1344 nbfile0.exe 1256 nbfile1.exe -
Loads dropped DLL 7 IoCs
pid Process 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 1256 nbfile1.exe 1256 nbfile1.exe 1256 nbfile1.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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NSIS installer 7 IoCs
resource yara_rule behavioral1/files/0x000a000000013a31-65.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-66.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-68.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-70.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-72.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-71.dat nsis_installer_2 behavioral1/files/0x000a000000013a31-73.dat nsis_installer_2 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373144733" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" 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\Recovery\AdminActive\{CB1B17C1-5174-11ED-9D78-7225AF48583A} = "0" 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\Toolbar\WebBrowser IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch 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 (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000048ca5449a4d21846ba8a995ea0abd35a0000000002000000000010660000000100002000000097e95090fe45b381d60c5ad725f45effd00a95f7639fb0a695463fd43d9aa490000000000e8000000002000020000000eb2bf53ecfd2fae9c5fc59d8b0bdf7ea9af053b9eae053c7625b55e0a334e58d9000000063257812bf3b1f07c089f879208afea65537aae71730a1777d1056441a0f890e354eb481a9d4f7de51665e2b232acf627befed433abc98658897a63185e299189612097ac942ab75137fc7c7c143c772c5db12c7aa311481337fa370778f3673eb942e1e4fcf3333ded65465523d806a7c37b717151fc20f98a777d6fc6f7f29d58e49328df9e4a959c658cb7898121b400000000511fed82b13cdaa59d3c4b48e9523b864e5a0959a78e11586e9c298d0db6adbdc1a546498b376dffe8ff4f53a0f7ba146d756a8feeaf81557d1bbffa1595f2c 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\BrowserEmulation\LowMic 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\InternetRegistry 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 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\IETld\LowMic 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\PageSetup IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing 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\LowRegistry IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000048ca5449a4d21846ba8a995ea0abd35a00000000020000000000106600000001000020000000ca8fa5b5d618683002f9ef26e4e2c332069724e0a7b0c7fec4bee7dcc2be242d000000000e800000000200002000000008ceb111837e359c55b63eaf2a28fb545c811288b3592e9ba2efbc51c2069144200000001a60873fcc5a66d3c000765acc24b76e7c7c0b3a50d85df7d388493ce6d34baa400000006f74a15cf6d4e6207f9e34682863673221386072c5f78af1a6cd41a7e5ae5473b8a0d387b90849d6bf9b5064c799e157b4a94ac1e377d9bc4eff87f7acc55bf3 IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = d0ece2aa81e5d801 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU 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\Recovery\PendingRecovery\AdminActive = "0" 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\Zoom IEXPLORE.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1344 nbfile0.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1036 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 1344 nbfile0.exe 1036 IEXPLORE.EXE 1036 IEXPLORE.EXE 572 IEXPLORE.EXE 572 IEXPLORE.EXE 572 IEXPLORE.EXE 572 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 1204 wrote to memory of 1344 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 27 PID 1204 wrote to memory of 1344 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 27 PID 1204 wrote to memory of 1344 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 27 PID 1204 wrote to memory of 1344 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 27 PID 1344 wrote to memory of 1036 1344 nbfile0.exe 28 PID 1344 wrote to memory of 1036 1344 nbfile0.exe 28 PID 1344 wrote to memory of 1036 1344 nbfile0.exe 28 PID 1344 wrote to memory of 1036 1344 nbfile0.exe 28 PID 1036 wrote to memory of 572 1036 IEXPLORE.EXE 30 PID 1036 wrote to memory of 572 1036 IEXPLORE.EXE 30 PID 1036 wrote to memory of 572 1036 IEXPLORE.EXE 30 PID 1036 wrote to memory of 572 1036 IEXPLORE.EXE 30 PID 1344 wrote to memory of 632 1344 nbfile0.exe 31 PID 1344 wrote to memory of 632 1344 nbfile0.exe 31 PID 1344 wrote to memory of 632 1344 nbfile0.exe 31 PID 1344 wrote to memory of 632 1344 nbfile0.exe 31 PID 1204 wrote to memory of 1256 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 32 PID 1204 wrote to memory of 1256 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 32 PID 1204 wrote to memory of 1256 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 32 PID 1204 wrote to memory of 1256 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 32 PID 1204 wrote to memory of 1256 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 32 PID 1204 wrote to memory of 1256 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 32 PID 1204 wrote to memory of 1256 1204 4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe 32 PID 1256 wrote to memory of 772 1256 nbfile1.exe 33 PID 1256 wrote to memory of 772 1256 nbfile1.exe 33 PID 1256 wrote to memory of 772 1256 nbfile1.exe 33 PID 1256 wrote to memory of 772 1256 nbfile1.exe 33 PID 1256 wrote to memory of 772 1256 nbfile1.exe 33 PID 1256 wrote to memory of 772 1256 nbfile1.exe 33 PID 1256 wrote to memory of 772 1256 nbfile1.exe 33 PID 1256 wrote to memory of 640 1256 nbfile1.exe 34 PID 1256 wrote to memory of 640 1256 nbfile1.exe 34 PID 1256 wrote to memory of 640 1256 nbfile1.exe 34 PID 1256 wrote to memory of 640 1256 nbfile1.exe 34 PID 1256 wrote to memory of 640 1256 nbfile1.exe 34 PID 1256 wrote to memory of 640 1256 nbfile1.exe 34 PID 1256 wrote to memory of 640 1256 nbfile1.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe"C:\Users\Admin\AppData\Local\Temp\4ed281c1a1ea5ffc5f4710a871b3174d9fa562b05fac6e7f327efd278c044c94.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Users\Admin\AppData\Local\Temp\nbfile0.exeC:\Users\Admin\AppData\Local\Temp\nbfile0.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1344 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://down.97199.com/install2/?sl33⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1036 CREDAT:275457 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:572
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile0.exe3⤵PID:632
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C:\Users\Admin\AppData\Local\Temp\nbfile1.exeC:\Users\Admin\AppData\Local\Temp\nbfile1.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1256 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"3⤵PID:772
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\1.vbs"3⤵PID:640
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
467KB
MD574869a0346ab36bbba85022612505121
SHA12cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a
SHA2566de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a
SHA512723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
608B
MD5851e674c6e6b171a8bef974d2f19e3f4
SHA15f5cc36f85af912ba2fd30dca91aba25c9bc7c71
SHA256b0a5d8e25030b682567f22fb33787b28512ee3a3662f5ff793cb4f36f69c7964
SHA51220af409b69b793ee5e549b680e653991c8ddb7d7284f2870c1f4edb40aca2a9b9780f91f799bd76ecdbb98bfed37b55a6ef7b87a0ce78ac35112f15a03e0aaf5
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Filesize
651B
MD54736e7158c27f244482f5a614b9dbdae
SHA1d3a0e95a81e9e3ec95cfd596b25749a0e24e27b9
SHA256b8229bc8d6b0013858fb9599cb510afa4566a439164b2c7444c449540a124acc
SHA512cebf895dd3ec3822c42b78bac49c685b063cb5afcbcfb3850b073cb118d086c5fa75ec50b6e73d90e14f2c6b595752ad87910b8cf27378424d72a9ea309bf824
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Filesize
467KB
MD574869a0346ab36bbba85022612505121
SHA12cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a
SHA2566de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a
SHA512723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5
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Filesize
467KB
MD574869a0346ab36bbba85022612505121
SHA12cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a
SHA2566de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a
SHA512723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9