Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
18-08-2022 13:34
Static task
static1
Behavioral task
behavioral1
Sample
xzw.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
xzw.exe
Resource
win10v2004-20220812-en
General
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Target
xzw.exe
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Size
872KB
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MD5
d156b1ffd7d387927ee88491a26ccae6
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SHA1
15764f67963a0e70f2b310510b95021d7e4aa27d
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SHA256
18459ea969be44966cb9bdd8d65d93d91dc2635d952f02aee69d6e2eaec2c679
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SHA512
0c213b94f86e49dfad8aed263ef11f5c24b9597591ae7f37b6451f513c1451f603c27676e547809976f636c86d2650fe12c988cdf2cea5ee6843612583ade283
Malware Config
Signatures
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Generic Chinese Botnet
A botnet originating from China which is currently unnamed publicly.
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Gh0st RAT payload 1 IoCs
resource yara_rule behavioral1/memory/1508-9501-0x0000000003C60000-0x0000000003DAF000-memory.dmp family_gh0strat -
Chinese Botnet payload 3 IoCs
resource yara_rule behavioral1/memory/1508-5610-0x0000000000400000-0x0000000000527000-memory.dmp unk_chinese_botnet behavioral1/memory/740-9490-0x0000000000400000-0x0000000000527000-memory.dmp unk_chinese_botnet behavioral1/memory/740-9495-0x0000000000400000-0x0000000000527000-memory.dmp unk_chinese_botnet -
Executes dropped EXE 1 IoCs
pid Process 740 Msemswe.exe -
resource yara_rule behavioral1/memory/1508-9501-0x0000000003C60000-0x0000000003DAF000-memory.dmp upx -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\U: xzw.exe File opened (read-only) \??\W: xzw.exe File opened (read-only) \??\B: xzw.exe File opened (read-only) \??\I: xzw.exe File opened (read-only) \??\N: xzw.exe File opened (read-only) \??\Q: xzw.exe File opened (read-only) \??\E: xzw.exe File opened (read-only) \??\G: xzw.exe File opened (read-only) \??\K: xzw.exe File opened (read-only) \??\L: xzw.exe File opened (read-only) \??\V: xzw.exe File opened (read-only) \??\X: xzw.exe File opened (read-only) \??\Z: xzw.exe File opened (read-only) \??\J: xzw.exe File opened (read-only) \??\P: xzw.exe File opened (read-only) \??\R: xzw.exe File opened (read-only) \??\T: xzw.exe File opened (read-only) \??\S: xzw.exe File opened (read-only) \??\Y: xzw.exe File opened (read-only) \??\F: xzw.exe File opened (read-only) \??\H: xzw.exe File opened (read-only) \??\M: xzw.exe File opened (read-only) \??\O: xzw.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat Msemswe.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 30 IoCs
pid Process 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 740 Msemswe.exe 740 Msemswe.exe 1508 xzw.exe 740 Msemswe.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe 1508 xzw.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\Msemswe.exe xzw.exe File opened for modification C:\Program Files (x86)\Msemswe.exe xzw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 xzw.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz xzw.exe -
Modifies data under HKEY_USERS 13 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" Msemswe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections Msemswe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ Msemswe.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" Msemswe.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" Msemswe.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Msemswe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix Msemswe.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings Msemswe.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Msemswe.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" Msemswe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings Msemswe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" Msemswe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad Msemswe.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1508 xzw.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\xzw.exe"C:\Users\Admin\AppData\Local\Temp\xzw.exe"1⤵
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1508
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C:\Program Files (x86)\Msemswe.exe"C:\Program Files (x86)\Msemswe.exe"1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies data under HKEY_USERS
PID:740
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
872KB
MD5d156b1ffd7d387927ee88491a26ccae6
SHA115764f67963a0e70f2b310510b95021d7e4aa27d
SHA25618459ea969be44966cb9bdd8d65d93d91dc2635d952f02aee69d6e2eaec2c679
SHA5120c213b94f86e49dfad8aed263ef11f5c24b9597591ae7f37b6451f513c1451f603c27676e547809976f636c86d2650fe12c988cdf2cea5ee6843612583ade283
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Filesize
872KB
MD5d156b1ffd7d387927ee88491a26ccae6
SHA115764f67963a0e70f2b310510b95021d7e4aa27d
SHA25618459ea969be44966cb9bdd8d65d93d91dc2635d952f02aee69d6e2eaec2c679
SHA5120c213b94f86e49dfad8aed263ef11f5c24b9597591ae7f37b6451f513c1451f603c27676e547809976f636c86d2650fe12c988cdf2cea5ee6843612583ade283