Analysis
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max time kernel
149s -
max time network
178s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 19:02
Static task
static1
Behavioral task
behavioral1
Sample
99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exe
Resource
win10v2004-20220812-en
General
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Target
99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exe
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Size
19KB
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MD5
4a42cf14c0b527c279bbc2e0c0d85830
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SHA1
705e83da26f6608f12b23fe750667eff30c69947
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SHA256
99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d
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SHA512
2835b4ba02eb2d2fc4aa391cd5221775951762b8ea730ccda51f63610dcc82bfefd44ad8eb1a6753a3f6d1d0473ca5b8d66c5ce76afcf9c69dce51e957fcf2cb
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SSDEEP
192:uXy4Rmi6ENEAk5Vgg5GQ8b1wN/A9iZbIcFHrY9W14APTK7YySJABJN55Ovr:uX5vK5D78BwN/xrF8PMcYySJkJNcr
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
realupdater.exepid process 4968 realupdater.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of WriteProcessMemory 3 IoCs
Processes:
99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exedescription pid process target process PID 4304 wrote to memory of 4968 4304 99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exe realupdater.exe PID 4304 wrote to memory of 4968 4304 99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exe realupdater.exe PID 4304 wrote to memory of 4968 4304 99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exe realupdater.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exe"C:\Users\Admin\AppData\Local\Temp\99cdbdc625bf76651fd4e20ab57cda4d51e3edcbd164ef30dec6639b2efd1d7d.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\realupdater.exe"C:\Users\Admin\AppData\Local\Temp\realupdater.exe"2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\realupdater.exeFilesize
20KB
MD5bfa5265997b504ef2729946c464439fb
SHA1a1960db24b7df15d75dcc86fe0807ad6bc39d795
SHA256b45adc3be9423c06e39b47545697bd73b0fead9d84d80cdf43ac1ed83f4fe4b1
SHA512bd50618b70497758f1273c6d4a9c6f48d59c1d1c02485e5a54934c29f944868157c79d133be24ae9bd54da2ce6f1012adda3989645f90fe06da91c65fbcda42d
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C:\Users\Admin\AppData\Local\Temp\realupdater.exeFilesize
20KB
MD5bfa5265997b504ef2729946c464439fb
SHA1a1960db24b7df15d75dcc86fe0807ad6bc39d795
SHA256b45adc3be9423c06e39b47545697bd73b0fead9d84d80cdf43ac1ed83f4fe4b1
SHA512bd50618b70497758f1273c6d4a9c6f48d59c1d1c02485e5a54934c29f944868157c79d133be24ae9bd54da2ce6f1012adda3989645f90fe06da91c65fbcda42d
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memory/4968-132-0x0000000000000000-mapping.dmp