Behavioral task
behavioral1
Sample
561d2b135a6200ef094b222eb47af87a.exe
Resource
win7-20240221-en
General
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Target
561d2b135a6200ef094b222eb47af87a.bin
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Size
3.1MB
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MD5
561d2b135a6200ef094b222eb47af87a
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SHA1
4db2f2254cae3695a0ffa7ccdc13097db254cd8c
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SHA256
c458feb66832df6a0c361d951c60bcda34c4f5c82652d25c5e4a1aa4c41d8d94
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SHA512
6bd32a9099968b13150a16ee919684e319a67a55dc436fb36157901528e5ccf0283daecdafd07876186f00af13a3bba170a6328926156578a2c06455772b0094
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SSDEEP
49152:mvyI22SsaNYfdPBldt698dBcjHHCy1JcLoGdVWTHHB72eh2NT:mvf22SsaNYfdPBldt6+dBcjHHCv
Malware Config
Extracted
quasar
1.4.1
Slave
140.238.91.110:36039
df49f69a-66a2-4b6e-bb60-18c12b5b14df
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encryption_key
6A1671418BB270D703D501AB8E9B41E8D413B6D3
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install_name
Client.exe
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log_directory
Win64ErrorLogs
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reconnect_delay
3000
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startup_key
Windows Boot Menu
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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 561d2b135a6200ef094b222eb47af87a.bin
Files
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561d2b135a6200ef094b222eb47af87a.bin.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