Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Client-built.exe
Resource
win10v2004-20240319-en
General
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Target
Client-built.exe
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Size
540KB
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MD5
ea38fa930938a75fd9c81328fb875994
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SHA1
afef8ed60d052ed43253e23943b55abc338fb003
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SHA256
845b57fc133ae1184a5b173c060f3235e59bc627a694422a220a30e0e11de92f
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SHA512
a6785fa1f97cf6336f858e13dc38c71d480c5d90e611497a39cf361c3b463426491418a1644c4fd9db13e206786edb6fe014cb0f11de05c3a3b60b5fe76503a9
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SSDEEP
6144:csTjI4aO2YBQ3SMEp4mfWYQqDjRrSz1V0bgFGxMJxqReI+ZDq3XqGGqStKEbxI2:1I4aO27yJfNSz1VgQ3IWDqqByEbxZ
Malware Config
Extracted
quasar
3.1.5.0
MicrosoftEdge
common-congratulations.gl.at.ply.gg:65362
127.0.0.1:65362
QSR_MUTEX_MKoa3FQkTUYpcQOoO7
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encryption_key
dhVyOaGPfY3DnJAtxuqT
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install_name
MicrosoftEdge.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
MicrosoftEdge
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subdirectory
MicrosoftEdge
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 Client-built.exe
Files
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Client-built.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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: 410KB - Virtual size: 410KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 128KB - Virtual size: 128KB
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