General
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Target
SkermEXEC.exe
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Size
3.1MB
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MD5
29cf8e89d3d231d35715bb571f6bc951
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SHA1
fd5f276121570e29c3a4ebcc41ca3c0f601ec8ac
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SHA256
4cdd83e33360793038fa8c33e9ec247e27a663c9971cfd3e3b3b68b53149cba0
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SHA512
fd6d4a8ed2ba86bc9124ae39d19ece55c196a76991a0d14c51b80e3d3262a2cce2e57b3f48375af4bcfa20b8cbb881285555b5216b823d6f480638e282addd6d
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SSDEEP
49152:DvKlL26AaNeWgPhlmVqvMQ7XSKyLcYEE07k/9LoGdYFTHHB72eh2NT:DvyL26AaNeWgPhlmVqkQ7XSKOcY
Malware Config
Extracted
quasar
1.4.1
Office04
104.28.197.26:4782
104.28.197.26:26
f195a5f9-5b8a-4ef1-ba41-ce79c45d3dad
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encryption_key
AAD5CB2ED96AC29ECF5D4BB5B9A38449017E4CAA
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install_name
SkermEXEC.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource SkermEXEC.exe
Files
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SkermEXEC.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