Analysis
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max time kernel
91s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
23/05/2022, 18:13 UTC
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20220414-en
General
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Target
tmp.exe
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Size
1.1MB
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MD5
d6df53506b123f5717463d0355336979
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SHA1
7720fb4b89a4ebcef32a6d6a9a7a88c65cad2c14
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SHA256
70969f1d56ec1ddcae3fc50545c0a351b798226c62d870db8ae5170eeec67694
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SHA512
1bfefa221ed77ef05fc72fbc20a322cae990b2a33a9af47b9ee4d9fa1c09d5c81f6a8fd8496ed43a47ee2862e1e2bf1651b4cca2f5e9e23e491c3d4b3249ad2f
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/5036-136-0x0000000010000000-0x0000000010018000-memory.dmp unk_chinese_botnet -
Executes dropped EXE 2 IoCs
pid Process 5036 ._cache_tmp.exe 1872 Synaptics.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation tmp.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Peahrfb.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\._cache_tmp.exe" ._cache_tmp.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe" tmp.exe -
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) \??\Q: ._cache_tmp.exe File opened (read-only) \??\Z: ._cache_tmp.exe File opened (read-only) \??\B: ._cache_tmp.exe File opened (read-only) \??\E: ._cache_tmp.exe File opened (read-only) \??\H: ._cache_tmp.exe File opened (read-only) \??\S: ._cache_tmp.exe File opened (read-only) \??\T: ._cache_tmp.exe File opened (read-only) \??\W: ._cache_tmp.exe File opened (read-only) \??\X: ._cache_tmp.exe File opened (read-only) \??\G: ._cache_tmp.exe File opened (read-only) \??\O: ._cache_tmp.exe File opened (read-only) \??\R: ._cache_tmp.exe File opened (read-only) \??\K: ._cache_tmp.exe File opened (read-only) \??\N: ._cache_tmp.exe File opened (read-only) \??\P: ._cache_tmp.exe File opened (read-only) \??\U: ._cache_tmp.exe File opened (read-only) \??\Y: ._cache_tmp.exe File opened (read-only) \??\F: ._cache_tmp.exe File opened (read-only) \??\I: ._cache_tmp.exe File opened (read-only) \??\J: ._cache_tmp.exe File opened (read-only) \??\L: ._cache_tmp.exe File opened (read-only) \??\M: ._cache_tmp.exe File opened (read-only) \??\V: ._cache_tmp.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz ._cache_tmp.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 ._cache_tmp.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ tmp.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5036 ._cache_tmp.exe 5036 ._cache_tmp.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4580 wrote to memory of 5036 4580 tmp.exe 79 PID 4580 wrote to memory of 5036 4580 tmp.exe 79 PID 4580 wrote to memory of 5036 4580 tmp.exe 79 PID 4580 wrote to memory of 1872 4580 tmp.exe 80 PID 4580 wrote to memory of 1872 4580 tmp.exe 80 PID 4580 wrote to memory of 1872 4580 tmp.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4580 -
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
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:5036
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C:\ProgramData\Synaptics\Synaptics.exe"C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate2⤵
- Executes dropped EXE
PID:1872
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Network
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Remote address:8.8.8.8:53Requestxred.mooo.comIN AResponse
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Remote address:8.8.8.8:53Requestfreedns.afraid.orgIN AResponsefreedns.afraid.orgIN A69.42.215.252
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GEThttp://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978Synaptics.exeRemote address:69.42.215.252:80RequestGET /api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978 HTTP/1.1
User-Agent: MyApp
Host: freedns.afraid.org
Cache-Control: no-cache
ResponseHTTP/1.1 200 OK
Date: Mon, 23 May 2022 18:13:38 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
X-Cache: MISS
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Remote address:8.8.8.8:53Requestdocs.google.comIN AResponsedocs.google.comIN A142.250.179.174
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Remote address:142.250.179.174:443RequestGET /uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download HTTP/1.1
User-Agent: Synaptics.exe
Host: docs.google.com
Cache-Control: no-cache
ResponseHTTP/1.1 404 Not Found
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: Mon, 01 Jan 1990 00:00:00 GMT
Date: Mon, 23 May 2022 18:14:39 GMT
Strict-Transport-Security: max-age=31536000
Permissions-Policy: ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*, ch-ua-full-version-list=*, ch-ua-model=*, ch-ua-platform=*, ch-ua-platform-version=*
Report-To: {"group":"DriveUntrustedContentHttp","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/DriveUntrustedContentHttp/external"}]}
Accept-CH: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Content-Security-Policy: require-trusted-types-for 'script';report-uri /_/DriveUntrustedContentHttp/cspreport
Content-Security-Policy: script-src 'report-sample' 'nonce-eZpyUGsJ4gI4uU0DQWdnew' 'unsafe-inline';object-src 'none';base-uri 'self';report-uri /_/DriveUntrustedContentHttp/cspreport;worker-src 'self'
Cross-Origin-Opener-Policy: same-origin; report-to="DriveUntrustedContentHttp"
Server: ESF
X-XSS-Protection: 0
X-Content-Type-Options: nosniff
Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
Accept-Ranges: none
Vary: Accept-Encoding
Transfer-Encoding: chunked
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Remote address:142.250.179.174:443RequestGET /uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download HTTP/1.1
User-Agent: Synaptics.exe
Host: docs.google.com
Cache-Control: no-cache
ResponseHTTP/1.1 404 Not Found
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: Mon, 01 Jan 1990 00:00:00 GMT
Date: Mon, 23 May 2022 18:14:39 GMT
Strict-Transport-Security: max-age=31536000
Permissions-Policy: ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*, ch-ua-full-version-list=*, ch-ua-model=*, ch-ua-platform=*, ch-ua-platform-version=*
Content-Security-Policy: script-src 'report-sample' 'nonce-0NRHtUv5sJtvnDpMQz3SeQ' 'unsafe-inline';object-src 'none';base-uri 'self';report-uri /_/DriveUntrustedContentHttp/cspreport;worker-src 'self'
Content-Security-Policy: require-trusted-types-for 'script';report-uri /_/DriveUntrustedContentHttp/cspreport
Accept-CH: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Cross-Origin-Opener-Policy: same-origin
Server: ESF
X-XSS-Protection: 0
X-Content-Type-Options: nosniff
Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
Accept-Ranges: none
Vary: Accept-Encoding
Transfer-Encoding: chunked
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Remote address:142.250.179.174:443RequestGET /uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download HTTP/1.1
User-Agent: Synaptics.exe
Host: docs.google.com
Cache-Control: no-cache
ResponseHTTP/1.1 404 Not Found
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: Mon, 01 Jan 1990 00:00:00 GMT
Date: Mon, 23 May 2022 18:14:39 GMT
Strict-Transport-Security: max-age=31536000
Accept-CH: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Content-Security-Policy: require-trusted-types-for 'script';report-uri /_/DriveUntrustedContentHttp/cspreport
Content-Security-Policy: script-src 'report-sample' 'nonce-Oq8AhNtdawu4d-1miRPAbQ' 'unsafe-inline';object-src 'none';base-uri 'self';report-uri /_/DriveUntrustedContentHttp/cspreport;worker-src 'self'
Cross-Origin-Opener-Policy: same-origin
Permissions-Policy: ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*, ch-ua-full-version-list=*, ch-ua-model=*, ch-ua-platform=*, ch-ua-platform-version=*
Server: ESF
X-XSS-Protection: 0
X-Content-Type-Options: nosniff
Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
Accept-Ranges: none
Vary: Accept-Encoding
Transfer-Encoding: chunked
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260 B 200 B 5 5
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69.42.215.252:80http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978httpSynaptics.exe752 B 415 B 13 4
HTTP Request
GET http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978HTTP Response
200 -
1.8kB 502 B 14 12
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322 B 7
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322 B 7
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322 B 7
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322 B 7
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322 B 7
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142.250.179.174:443https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=downloadtls, httpSynaptics.exe2.0kB 17.1kB 26 24
HTTP Request
GET https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=downloadHTTP Response
404HTTP Request
GET https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=downloadHTTP Response
404HTTP Request
GET https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=downloadHTTP Response
404
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59 B 118 B 1 1
DNS Request
xred.mooo.com
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64 B 80 B 1 1
DNS Request
freedns.afraid.org
DNS Response
69.42.215.252
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114 B 2
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61 B 77 B 1 1
DNS Request
docs.google.com
DNS Response
142.250.179.174
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
754KB
MD5310a7ff41f6633132e6c2bc25e51e567
SHA15f687df8cc3185ed68d77d0e05502c2eb308c5c8
SHA256d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab
SHA512ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980
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Filesize
754KB
MD5310a7ff41f6633132e6c2bc25e51e567
SHA15f687df8cc3185ed68d77d0e05502c2eb308c5c8
SHA256d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab
SHA512ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980
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Filesize
400KB
MD5f82f50d6a61d3d73172fcbf3ff665e89
SHA12e5cde938a2822a13348e55f4ad0dfa75d545fee
SHA256afbf8e478edc3d239953a3653a5ec113363fb9406552536d6469581b52585bcd
SHA512f5945f9c5b4cfcd29498b24ec43000e6ec2927ec264d758aeeb4325f4c5f2b1d03fb997c84b38daec82b4a1dbc9f049b932ca399ef02778072cf594b1b5044fb
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Filesize
400KB
MD5f82f50d6a61d3d73172fcbf3ff665e89
SHA12e5cde938a2822a13348e55f4ad0dfa75d545fee
SHA256afbf8e478edc3d239953a3653a5ec113363fb9406552536d6469581b52585bcd
SHA512f5945f9c5b4cfcd29498b24ec43000e6ec2927ec264d758aeeb4325f4c5f2b1d03fb997c84b38daec82b4a1dbc9f049b932ca399ef02778072cf594b1b5044fb