Analysis
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max time kernel
146s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
17-08-2023 15:13
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20230703-en
General
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Target
tmp.exe
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Size
1.1MB
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MD5
700fc96585a4947fcdf27a271d40876f
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SHA1
121edbdefb9a894ff217f20c963626ec1bd94770
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SHA256
65a0ece86fe16402e51a637d121bddccfa0d1d026bd0cec7f7ead19c31507eaa
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SHA512
748d5fd5421bdb51421dc9a33c2a4ca93a66d1afcdeb03a766513b81e05a337e52ad3fdacb852e8e037e7dfffdb3e6cfec3fe376d885a8c8b8da5188cd4c032e
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SSDEEP
12288:VMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9FC9/W74Vf:VnsJ39LyjbJkQFMhmC+6GD9mW7S
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 1 IoCs
resource yara_rule behavioral2/memory/4388-262-0x0000000010000000-0x0000000010018000-memory.dmp unk_chinese_botnet -
Executes dropped EXE 3 IoCs
pid Process 4388 ._cache_tmp.exe 4192 Synaptics.exe 1752 ._cache_Synaptics.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe" tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Terms.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\._cache_Synaptics.exe" ._cache_Synaptics.exe Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Terms.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\._cache_tmp.exe" ._cache_tmp.exe -
Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\B: ._cache_Synaptics.exe File opened (read-only) \??\G: ._cache_Synaptics.exe File opened (read-only) \??\L: ._cache_Synaptics.exe File opened (read-only) \??\Q: ._cache_Synaptics.exe File opened (read-only) \??\I: ._cache_Synaptics.exe File opened (read-only) \??\J: ._cache_Synaptics.exe File opened (read-only) \??\N: ._cache_Synaptics.exe File opened (read-only) \??\R: ._cache_Synaptics.exe File opened (read-only) \??\S: ._cache_Synaptics.exe File opened (read-only) \??\W: ._cache_Synaptics.exe File opened (read-only) \??\E: ._cache_Synaptics.exe File opened (read-only) \??\K: ._cache_Synaptics.exe File opened (read-only) \??\M: ._cache_Synaptics.exe File opened (read-only) \??\P: ._cache_Synaptics.exe File opened (read-only) \??\T: ._cache_Synaptics.exe File opened (read-only) \??\U: ._cache_Synaptics.exe File opened (read-only) \??\X: ._cache_Synaptics.exe File opened (read-only) \??\Z: ._cache_Synaptics.exe File opened (read-only) \??\H: ._cache_Synaptics.exe File opened (read-only) \??\O: ._cache_Synaptics.exe File opened (read-only) \??\V: ._cache_Synaptics.exe File opened (read-only) \??\Y: ._cache_Synaptics.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ tmp.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Synaptics.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1752 ._cache_Synaptics.exe 1752 ._cache_Synaptics.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4108 wrote to memory of 4388 4108 tmp.exe 83 PID 4108 wrote to memory of 4388 4108 tmp.exe 83 PID 4108 wrote to memory of 4388 4108 tmp.exe 83 PID 4108 wrote to memory of 4192 4108 tmp.exe 84 PID 4108 wrote to memory of 4192 4108 tmp.exe 84 PID 4108 wrote to memory of 4192 4108 tmp.exe 84 PID 4192 wrote to memory of 1752 4192 Synaptics.exe 85 PID 4192 wrote to memory of 1752 4192 Synaptics.exe 85 PID 4192 wrote to memory of 1752 4192 Synaptics.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4108 -
C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe"C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:4388
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C:\ProgramData\Synaptics\Synaptics.exe"C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate2⤵
- Executes dropped EXE
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4192 -
C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate3⤵
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
PID:1752
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.1MB
MD5700fc96585a4947fcdf27a271d40876f
SHA1121edbdefb9a894ff217f20c963626ec1bd94770
SHA25665a0ece86fe16402e51a637d121bddccfa0d1d026bd0cec7f7ead19c31507eaa
SHA512748d5fd5421bdb51421dc9a33c2a4ca93a66d1afcdeb03a766513b81e05a337e52ad3fdacb852e8e037e7dfffdb3e6cfec3fe376d885a8c8b8da5188cd4c032e
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Filesize
1.1MB
MD5700fc96585a4947fcdf27a271d40876f
SHA1121edbdefb9a894ff217f20c963626ec1bd94770
SHA25665a0ece86fe16402e51a637d121bddccfa0d1d026bd0cec7f7ead19c31507eaa
SHA512748d5fd5421bdb51421dc9a33c2a4ca93a66d1afcdeb03a766513b81e05a337e52ad3fdacb852e8e037e7dfffdb3e6cfec3fe376d885a8c8b8da5188cd4c032e
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Filesize
1.1MB
MD5700fc96585a4947fcdf27a271d40876f
SHA1121edbdefb9a894ff217f20c963626ec1bd94770
SHA25665a0ece86fe16402e51a637d121bddccfa0d1d026bd0cec7f7ead19c31507eaa
SHA512748d5fd5421bdb51421dc9a33c2a4ca93a66d1afcdeb03a766513b81e05a337e52ad3fdacb852e8e037e7dfffdb3e6cfec3fe376d885a8c8b8da5188cd4c032e
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Filesize
352KB
MD5e76dbb2f998c3ccf78e984001c9207c8
SHA19c27f473c6d8529f77fdfaac6615265d096b4f85
SHA256ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07
SHA512ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34
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Filesize
352KB
MD5e76dbb2f998c3ccf78e984001c9207c8
SHA19c27f473c6d8529f77fdfaac6615265d096b4f85
SHA256ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07
SHA512ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34
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Filesize
352KB
MD5e76dbb2f998c3ccf78e984001c9207c8
SHA19c27f473c6d8529f77fdfaac6615265d096b4f85
SHA256ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07
SHA512ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34
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Filesize
352KB
MD5e76dbb2f998c3ccf78e984001c9207c8
SHA19c27f473c6d8529f77fdfaac6615265d096b4f85
SHA256ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07
SHA512ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34
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Filesize
352KB
MD5e76dbb2f998c3ccf78e984001c9207c8
SHA19c27f473c6d8529f77fdfaac6615265d096b4f85
SHA256ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07
SHA512ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34