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Behavioral task
behavioral1
Sample
RC7old.exe
Resource
win7-20240903-en
General
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Target
RC7old.exe
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Size
3.1MB
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MD5
5efb08d03470612d11124136accc84fa
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SHA1
46abe602f6566ff6103f504ef8ae73f43eae19c1
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SHA256
853cf003dd01ec972a222a28b1e8b260fb06fab20245e609cb7df103d110343f
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SHA512
13a1fbeae357662e2e2a60e511a3bce2f63fef40a96ba49f25e745dd466ca3da24de5155f0f2233e8d15941f353a21df14247ab7b4ebf84ee419ca7d7b7ae74a
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SSDEEP
49152:CvHI22SsaNYfdPBldt698dBcjHuYREEf/yk/65LoGdvYAFTHHB72eh2NT:Cvo22SsaNYfdPBldt6+dBcjHuYRkp
Malware Config
Extracted
quasar
1.4.1
RC7old
yellow-parts.gl.at.ply.gg:52085
8356bffd-2b62-44f9-937c-4adee31d9ea3
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encryption_key
5471C1CD3CF5D10BA14E0A632D9E07BC5FEE0E2B
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install_name
RC7old.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
System
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subdirectory
System
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 RC7old.exe
Files
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RC7old.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: 3.1MB - Virtual size: 3.1MB
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