Behavioral task
behavioral1
Sample
buff.exe
Resource
win7-20240704-en
General
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Target
buff.exe
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Size
3.1MB
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MD5
b4331fcabc3c2d49951fae44870ebe91
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SHA1
6998f4c7c6f2306f4245e59ce3d8bc5fc13bf94f
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SHA256
3a05452acbb8d384d59428cb8194fb760e5de23ef581a07f168ff840d8e2fea9
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SHA512
1de347b19d4a7187df2ffd8d141d5a363aabcf2425b66b482a6fed7133a805e6ab7d6064f29100f83725f0e2e2394da592fbffb574752db015f58206202b007b
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SSDEEP
49152:WvXG42pda6D+/PjlLOlg6yQipVKwRJ6hbR3LoGdGCITHHB72eh2NT:Wv242pda6D+/PjlLOlZyQipVKwRJ6D2
Malware Config
Extracted
quasar
1.4.1
massdm
192.168.1.156:4782
r-minolta.gl.at.ply.gg:63431
7a0df206-428b-4b7b-939a-21fd6eb0a342
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encryption_key
EB77EF1E2C1E9FC0CC580EBFBB1E68F8B012F37E
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install_name
massdm.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Update
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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 buff.exe
Files
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buff.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