Behavioral task
behavioral1
Sample
stubberr.exe
Resource
win7-20240704-en
General
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Target
stubberr.exe
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Size
5.3MB
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MD5
3bbff0ed97fc9f95d144386bbb9839fc
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SHA1
b2f3b636bd7273fe18465b0783e396ef40f5a01a
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SHA256
3d6f1be9836b0f9c20ec43af8d56ecee1fe81944ac5f189554d15565880cbe46
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SHA512
84d498f1f375e1c09d4fc220d8d3e75610b8c27dcae8cf08081f5fbad71bc90abb72c0ac85666a20c2e3847837f31e3243d7abd11bab88e3a150c7b7949418a7
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SSDEEP
98304:qrgJHAanua2N/GzJQF6epaVe6tIz6ilT8/FW:sUwDG8taZaQg
Malware Config
Extracted
quasar
1.4.1
Auth
147.185.221.20:9835
147.185.221.20:18563
01602dde-afaa-4728-adfb-cee6e94148f8
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encryption_key
99DD896C463A5DEFC60E5185D43A6893ACB75CFB
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
fsefs
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource stubberr.exe
Files
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stubberr.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 5.3MB - Virtual size: 5.3MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ