Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
08-02-2023 18:54
Static task
static1
Behavioral task
behavioral1
Sample
721740f1413193e8cbc2bc5072beada7.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
721740f1413193e8cbc2bc5072beada7.exe
Resource
win10v2004-20221111-en
General
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Target
721740f1413193e8cbc2bc5072beada7.exe
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Size
1.5MB
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MD5
721740f1413193e8cbc2bc5072beada7
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SHA1
943cad4421ddd671c65231dd01f34c5590afd5d2
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SHA256
cdc95392f7aaf04457256258571c08966e093503028339eeeb586a3d1d2903e0
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SHA512
4682774873438a2ac9bb05629a6d3124abcd93741381d053cbfdf64266c6cd74c0c58d7f3122040a1c3a0f09d12bbd98dbe2beb90b14e177b245cb02ec26f5cc
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SSDEEP
24576:7JHa6PX0VhuxwQR+6CKOmi6qZsokbbbFXj+4Xnrsjp9gawa0Stirk2BK5IoW6g1S:9JkVh76CbmdqxIbbdC4XrsjpBwaFmnJM
Malware Config
Signatures
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Generic Chinese Botnet
A botnet originating from China which is currently unnamed publicly.
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Chinese Botnet payload 2 IoCs
resource yara_rule behavioral2/memory/1900-2849-0x0000000010000000-0x0000000010018000-memory.dmp unk_chinese_botnet behavioral2/memory/4408-2861-0x0000000010000000-0x0000000010018000-memory.dmp unk_chinese_botnet -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 6 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation ._cache_Synaptics.exe Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation computer.exe Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation 721740f1413193e8cbc2bc5072beada7.exe Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation ._cache_721740f1413193e8cbc2bc5072beada7.exe Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation computer.exe Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation Synaptics.exe -
Executes dropped EXE 7 IoCs
pid Process 1900 ._cache_721740f1413193e8cbc2bc5072beada7.exe 2256 Synaptics.exe 2028 computer.exe 4408 ._cache_computer.exe 3824 ._cache_Synaptics.exe 1444 computer.exe 3228 ._cache_computer.exe -
Loads dropped DLL 2 IoCs
pid Process 1444 computer.exe 1444 computer.exe -
Adds Run key to start application 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe" 721740f1413193e8cbc2bc5072beada7.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Okecpee.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\._cache_Synaptics.exe" ._cache_Synaptics.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Okecpee.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\._cache_721740f1413193e8cbc2bc5072beada7.exe" ._cache_721740f1413193e8cbc2bc5072beada7.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Imsossm.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\._cache_computer.exe" ._cache_computer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Imsossm.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\._cache_computer.exe" ._cache_computer.exe -
Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\M: ._cache_Synaptics.exe File opened (read-only) \??\E: ._cache_Synaptics.exe File opened (read-only) \??\H: ._cache_Synaptics.exe File opened (read-only) \??\P: ._cache_Synaptics.exe File opened (read-only) \??\Q: ._cache_computer.exe File opened (read-only) \??\S: ._cache_computer.exe File opened (read-only) \??\U: ._cache_computer.exe File opened (read-only) \??\U: ._cache_Synaptics.exe File opened (read-only) \??\J: ._cache_computer.exe File opened (read-only) \??\L: ._cache_computer.exe File opened (read-only) \??\O: ._cache_computer.exe File opened (read-only) \??\P: ._cache_computer.exe File opened (read-only) \??\B: ._cache_computer.exe File opened (read-only) \??\G: ._cache_computer.exe File opened (read-only) \??\H: ._cache_computer.exe File opened (read-only) \??\F: ._cache_Synaptics.exe File opened (read-only) \??\N: ._cache_Synaptics.exe File opened (read-only) \??\W: ._cache_Synaptics.exe File opened (read-only) \??\X: ._cache_Synaptics.exe File opened (read-only) \??\Y: ._cache_Synaptics.exe File opened (read-only) \??\M: ._cache_computer.exe File opened (read-only) \??\Z: ._cache_computer.exe File opened (read-only) \??\K: ._cache_computer.exe File opened (read-only) \??\T: ._cache_computer.exe File opened (read-only) \??\G: ._cache_Synaptics.exe File opened (read-only) \??\K: ._cache_Synaptics.exe File opened (read-only) \??\L: ._cache_Synaptics.exe File opened (read-only) \??\R: ._cache_Synaptics.exe File opened (read-only) \??\E: ._cache_computer.exe File opened (read-only) \??\Y: ._cache_computer.exe File opened (read-only) \??\V: ._cache_Synaptics.exe File opened (read-only) \??\Z: ._cache_Synaptics.exe File opened (read-only) \??\N: ._cache_computer.exe File opened (read-only) \??\V: ._cache_computer.exe File opened (read-only) \??\X: ._cache_computer.exe File opened (read-only) \??\I: ._cache_Synaptics.exe File opened (read-only) \??\J: ._cache_Synaptics.exe File opened (read-only) \??\O: ._cache_Synaptics.exe File opened (read-only) \??\Q: ._cache_Synaptics.exe File opened (read-only) \??\T: ._cache_Synaptics.exe File opened (read-only) \??\W: ._cache_computer.exe File opened (read-only) \??\B: ._cache_Synaptics.exe File opened (read-only) \??\S: ._cache_Synaptics.exe File opened (read-only) \??\F: ._cache_computer.exe File opened (read-only) \??\I: ._cache_computer.exe File opened (read-only) \??\R: ._cache_computer.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 38 IoCs
pid Process 3440 721740f1413193e8cbc2bc5072beada7.exe 3440 721740f1413193e8cbc2bc5072beada7.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.exe 2256 Synaptics.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 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz ._cache_computer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 ._cache_Synaptics.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz ._cache_Synaptics.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 ._cache_computer.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ computer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Synaptics.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ computer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 721740f1413193e8cbc2bc5072beada7.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3824 ._cache_Synaptics.exe 3824 ._cache_Synaptics.exe 4408 ._cache_computer.exe 4408 ._cache_computer.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 3440 wrote to memory of 1900 3440 721740f1413193e8cbc2bc5072beada7.exe 82 PID 3440 wrote to memory of 1900 3440 721740f1413193e8cbc2bc5072beada7.exe 82 PID 3440 wrote to memory of 1900 3440 721740f1413193e8cbc2bc5072beada7.exe 82 PID 1900 wrote to memory of 1820 1900 ._cache_721740f1413193e8cbc2bc5072beada7.exe 83 PID 1900 wrote to memory of 1820 1900 ._cache_721740f1413193e8cbc2bc5072beada7.exe 83 PID 1900 wrote to memory of 1820 1900 ._cache_721740f1413193e8cbc2bc5072beada7.exe 83 PID 3440 wrote to memory of 2256 3440 721740f1413193e8cbc2bc5072beada7.exe 85 PID 3440 wrote to memory of 2256 3440 721740f1413193e8cbc2bc5072beada7.exe 85 PID 3440 wrote to memory of 2256 3440 721740f1413193e8cbc2bc5072beada7.exe 85 PID 1900 wrote to memory of 2028 1900 ._cache_721740f1413193e8cbc2bc5072beada7.exe 86 PID 1900 wrote to memory of 2028 1900 ._cache_721740f1413193e8cbc2bc5072beada7.exe 86 PID 1900 wrote to memory of 2028 1900 ._cache_721740f1413193e8cbc2bc5072beada7.exe 86 PID 2028 wrote to memory of 4408 2028 computer.exe 90 PID 2028 wrote to memory of 4408 2028 computer.exe 90 PID 2028 wrote to memory of 4408 2028 computer.exe 90 PID 2256 wrote to memory of 3824 2256 Synaptics.exe 87 PID 2256 wrote to memory of 3824 2256 Synaptics.exe 87 PID 2256 wrote to memory of 3824 2256 Synaptics.exe 87 PID 3824 wrote to memory of 2948 3824 ._cache_Synaptics.exe 88 PID 3824 wrote to memory of 2948 3824 ._cache_Synaptics.exe 88 PID 3824 wrote to memory of 2948 3824 ._cache_Synaptics.exe 88 PID 3824 wrote to memory of 1444 3824 ._cache_Synaptics.exe 91 PID 3824 wrote to memory of 1444 3824 ._cache_Synaptics.exe 91 PID 3824 wrote to memory of 1444 3824 ._cache_Synaptics.exe 91 PID 1444 wrote to memory of 3228 1444 computer.exe 92 PID 1444 wrote to memory of 3228 1444 computer.exe 92 PID 1444 wrote to memory of 3228 1444 computer.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\721740f1413193e8cbc2bc5072beada7.exe"C:\Users\Admin\AppData\Local\Temp\721740f1413193e8cbc2bc5072beada7.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3440 -
C:\Users\Admin\AppData\Local\Temp\._cache_721740f1413193e8cbc2bc5072beada7.exe"C:\Users\Admin\AppData\Local\Temp\._cache_721740f1413193e8cbc2bc5072beada7.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1900 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c md C:\windowss643⤵PID:1820
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C:\windowss64\computer.exe"C:\windowss64\computer.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe"C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4408
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C:\ProgramData\Synaptics\Synaptics.exe"C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate3⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3824 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c md C:\windowss644⤵PID:2948
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C:\windowss64\computer.exe"C:\windowss64\computer.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1444 -
C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe"C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe"5⤵
- Executes dropped EXE
- Adds Run key to start application
PID:3228
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.5MB
MD5721740f1413193e8cbc2bc5072beada7
SHA1943cad4421ddd671c65231dd01f34c5590afd5d2
SHA256cdc95392f7aaf04457256258571c08966e093503028339eeeb586a3d1d2903e0
SHA5124682774873438a2ac9bb05629a6d3124abcd93741381d053cbfdf64266c6cd74c0c58d7f3122040a1c3a0f09d12bbd98dbe2beb90b14e177b245cb02ec26f5cc
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Filesize
1.5MB
MD5721740f1413193e8cbc2bc5072beada7
SHA1943cad4421ddd671c65231dd01f34c5590afd5d2
SHA256cdc95392f7aaf04457256258571c08966e093503028339eeeb586a3d1d2903e0
SHA5124682774873438a2ac9bb05629a6d3124abcd93741381d053cbfdf64266c6cd74c0c58d7f3122040a1c3a0f09d12bbd98dbe2beb90b14e177b245cb02ec26f5cc
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Filesize
1.1MB
MD5be689578752179e22bf915dbcf4f7520
SHA1e798e703bfb90707a2872b51da73f32af566aedb
SHA256de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e
SHA51289c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8
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Filesize
362KB
MD5146301a1b80222c9892ab54e2a1ca5f8
SHA126d2a517a2419f2d6f035c4ea674d29f19e4ac35
SHA2569679a5ede73e38c23204f7552cf1b84ddf3743d02782069d0baac86bed6907cd
SHA51291d4a0bcc35ccaa2b34831ba876aff720d193f3d166cfd784a06fa9a5848ae8a962699a73fe4d3b48f343559a558c93d0d523de6a52edaccdf8a4f7ad8055e07
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Filesize
362KB
MD5146301a1b80222c9892ab54e2a1ca5f8
SHA126d2a517a2419f2d6f035c4ea674d29f19e4ac35
SHA2569679a5ede73e38c23204f7552cf1b84ddf3743d02782069d0baac86bed6907cd
SHA51291d4a0bcc35ccaa2b34831ba876aff720d193f3d166cfd784a06fa9a5848ae8a962699a73fe4d3b48f343559a558c93d0d523de6a52edaccdf8a4f7ad8055e07
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Filesize
362KB
MD5146301a1b80222c9892ab54e2a1ca5f8
SHA126d2a517a2419f2d6f035c4ea674d29f19e4ac35
SHA2569679a5ede73e38c23204f7552cf1b84ddf3743d02782069d0baac86bed6907cd
SHA51291d4a0bcc35ccaa2b34831ba876aff720d193f3d166cfd784a06fa9a5848ae8a962699a73fe4d3b48f343559a558c93d0d523de6a52edaccdf8a4f7ad8055e07
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Filesize
362KB
MD5146301a1b80222c9892ab54e2a1ca5f8
SHA126d2a517a2419f2d6f035c4ea674d29f19e4ac35
SHA2569679a5ede73e38c23204f7552cf1b84ddf3743d02782069d0baac86bed6907cd
SHA51291d4a0bcc35ccaa2b34831ba876aff720d193f3d166cfd784a06fa9a5848ae8a962699a73fe4d3b48f343559a558c93d0d523de6a52edaccdf8a4f7ad8055e07
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Filesize
400KB
MD520beeb0a82adcce3a58372804acc46be
SHA1c579d9017d2c8298fe075ff5c05963901330e72a
SHA256d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e
SHA5127636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd
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Filesize
400KB
MD520beeb0a82adcce3a58372804acc46be
SHA1c579d9017d2c8298fe075ff5c05963901330e72a
SHA256d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e
SHA5127636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd
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Filesize
400KB
MD520beeb0a82adcce3a58372804acc46be
SHA1c579d9017d2c8298fe075ff5c05963901330e72a
SHA256d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e
SHA5127636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd
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Filesize
400KB
MD520beeb0a82adcce3a58372804acc46be
SHA1c579d9017d2c8298fe075ff5c05963901330e72a
SHA256d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e
SHA5127636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd
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Filesize
400KB
MD520beeb0a82adcce3a58372804acc46be
SHA1c579d9017d2c8298fe075ff5c05963901330e72a
SHA256d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e
SHA5127636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd
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Filesize
1.1MB
MD5be689578752179e22bf915dbcf4f7520
SHA1e798e703bfb90707a2872b51da73f32af566aedb
SHA256de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e
SHA51289c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8
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Filesize
1.1MB
MD5be689578752179e22bf915dbcf4f7520
SHA1e798e703bfb90707a2872b51da73f32af566aedb
SHA256de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e
SHA51289c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8
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Filesize
1.1MB
MD5be689578752179e22bf915dbcf4f7520
SHA1e798e703bfb90707a2872b51da73f32af566aedb
SHA256de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e
SHA51289c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8