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Analysis
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max time kernel
91s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
07/11/2022, 01:50 UTC
Static task
static1
Behavioral task
behavioral1
Sample
50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe
Resource
win10v2004-20220812-en
General
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Target
50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe
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Size
168KB
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MD5
0cd9e8491588e9bf65d2f9c2c953cd50
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SHA1
14d311aa47ebbd3eb8c72b0b289d614b365c7141
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SHA256
50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905
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SHA512
afbe1907bd34bddb11aaeaa4d820243577d922cea2b168aa76d2b587d04a39e66ffe4e9e5968b91dce3cbf6a09ccdd9c99b7230c6583a3cd8d2d39ff65674455
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SSDEEP
3072:OTvj/t8bVdipDivEtGSK4KCIByHwntt+PNaA8tnc:OTrqJdyDHtGSK5yHa+F1gc
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 1708 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\common\Utility.dll 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe File created C:\Program Files\SogouPinyinUp.exe 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.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 Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1" explorer.exe -
Modifies registry class 37 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0 = 7e003100000000006755a25a110050726f6772616d730000660008000400efbeee3a851a6755a25a2a000000bc0100000000010000000000000000003c0000000000500072006f006700720061006d007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100370038003200000018000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0 = 46003100000000006755a25a100058585800340008000400efbe6755a25a6755a25a2a000000ba440100000006000000000000000000000000000000580058005800000012000000 explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}" explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0 = 8200310000000000ee3a2828110053544152544d7e3100006a0008000400efbeee3a851aee3a28282a000000bb0100000000010000000000000000004000000000005300740061007200740020004d0065006e007500000040007300680065006c006c00330032002e0064006c006c002c002d0032003100370038003600000018000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 5c003100000000002155396e122050524f4752417e330000440008000400efbeee3a851a2155396e2a00000085010000000001000000000000000000000000000000500072006f006700720061006d004400610074006100000018000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 58003100000000002155886d14204d4943524f537e310000400008000400efbeee3a851a2155886d2a000000860100000000010000000000000000000000000000004d006900630072006f0073006f0066007400000018000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0\NodeSlot = "1" explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 52003100000000002155c6a3102057696e646f7773003c0008000400efbeee3a851a2155c6a32a000000b1010000000001000000000000000000000000000000570069006e0064006f0077007300000016000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1708 wrote to memory of 1584 1708 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe 27 PID 1708 wrote to memory of 1584 1708 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe 27 PID 1708 wrote to memory of 1584 1708 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe 27 PID 1708 wrote to memory of 1584 1708 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe"C:\Users\Admin\AppData\Local\Temp\50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1708 -
C:\Windows\SysWOW64\Explorer.exeExplorer /select,C:\ProgramData\Microsoft\Windows\Start Menu\Programs\XXX\calcx.lnk2⤵PID:1584
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies Internet Explorer settings
- Modifies registry class
PID:584
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
14KB
MD554e9f974ac4ef96572043259326b21fc
SHA1da8deb9e6b39f00548dff9116ce426f1c1e45496
SHA256100f3191193ff237ce9b30ba2c1985d72cad896dcacd1c9df324905893ef8227
SHA512a71b8a526a410bcb0face2131af7d7b64f2bccdb184e72a623eaaa4a24f80f8b5a7a74041104e212fbbab51a18be71b79726ed6121cc8a04c55f396bd484fb5a
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Filesize
731B
MD5d2396c97eb4b4b1b4e6d61cd0d5c1ca8
SHA1b03ef58301b7daf4b4f89df082289336b6cd751f
SHA256ce277fc1ce38e21e38d5f6ecc37cc6679d98910b7c105b57424804ac85a5834e
SHA51203e0ccd6748afe620796e2560ec55e2163a96bae42d3012376e7d9cde78d935db922b4c9dd2e0e0bf42ace50569842902c7e50d7e0cae378acb9daf1b97da6da
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Filesize
14KB
MD554e9f974ac4ef96572043259326b21fc
SHA1da8deb9e6b39f00548dff9116ce426f1c1e45496
SHA256100f3191193ff237ce9b30ba2c1985d72cad896dcacd1c9df324905893ef8227
SHA512a71b8a526a410bcb0face2131af7d7b64f2bccdb184e72a623eaaa4a24f80f8b5a7a74041104e212fbbab51a18be71b79726ed6121cc8a04c55f396bd484fb5a