Behavioral task
behavioral1
Sample
85d4c4816e5af2bb3ddb512275e2096a.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
85d4c4816e5af2bb3ddb512275e2096a.exe
Resource
win10v2004-20231215-en
General
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Target
85d4c4816e5af2bb3ddb512275e2096a
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Size
145KB
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MD5
85d4c4816e5af2bb3ddb512275e2096a
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SHA1
f163e8b82d4195c2e2b1706c45f17b41ce0b8f5e
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SHA256
6e611cfb2b90bb068aeae927cce437e916ea087c5c463d789d58547cf75838f0
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SHA512
ec78b7ae37bd881fe2511208b84497b1a178f9543038add3b9b6dccc21e85c62e6c6a991c1ee6a6d288f9fa8a3892d60d699804786de3dff7eb5c91b926f8105
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SSDEEP
3072:xnJ4V2K4wv6QISzFsqeTgITkfl/8kDhqvDcM7PlCmPWPy:UVp4wyrSJVeTgIofl/8+hCcM7tR+y
Malware Config
Extracted
metasploit
encoder/call4_dword_xor
Signatures
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Metasploit family
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 85d4c4816e5af2bb3ddb512275e2096a unpack001/out.upx
Files
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85d4c4816e5af2bb3ddb512275e2096a.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 884KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 143KB - Virtual size: 144KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX2 Size: 512B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 242KB - Virtual size: 241KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 9KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 94KB - Virtual size: 734KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 21KB - Virtual size: 21KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ