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General
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Target
Reparador MTA.exe
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Size
3.3MB
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MD5
7c0fac689542f00caff659cbe037186f
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SHA1
a541a77e67e2c768bfa69282ff926a50ce3412a1
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SHA256
fe3d6fad8814926141da7cf0e91fc86c920b5e4a6ddf7c7d3d42c2a539421e24
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SHA512
e5595f74acea7171c2baa2ca4000d3d54b5b0eb6d7323a3904eab1fb98c95c92f7dba83f7059b3482279cf490d0eee52a1967ba08a3540eca2b76cc96c341df2
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SSDEEP
49152:1vSI22SsaNYfdPBldt698dBcjHRCl1JLLoGdSTHHB72eh2NT:1v/22SsaNYfdPBldt6+dBcjHRCF
Malware Config
Extracted
quasar
1.4.1
Office04
azxq0ap.localto.net:3425
e51e2b65-e963-4051-9736-67d57ed46798
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encryption_key
AEA258EF65BF1786F0F767C0BE2497ECC304C46F
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install_name
WindowsUpdate.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
WindowsUpdate
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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 Reparador MTA.exe
Files
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Reparador MTA.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: 201KB - Virtual size: 200KB
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