Behavioral task
behavioral1
Sample
5c1aa6257d26fe7e54b79ef0a1e81af61926ae715e49124aff41a63d6cb5d5aa.exe
Resource
win7-20240221-en
General
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Target
5c1aa6257d26fe7e54b79ef0a1e81af61926ae715e49124aff41a63d6cb5d5aa
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Size
15KB
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MD5
8ed5c352e9436e07229f47d6a1f11fc1
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SHA1
df9c8e34aa90a2112d70a4eb99dcf0fa103c57c0
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SHA256
5c1aa6257d26fe7e54b79ef0a1e81af61926ae715e49124aff41a63d6cb5d5aa
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SHA512
eb197a8ce2977bd3b45cf041c93766ddba7e2f42d1a762e8c4866c8327e6511e1c08ffa5a9d295030fe844a7db3ee727285f4e67c3db7e06b7e35e4d286de7ae
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SSDEEP
384:IO3qdXlIQV0YXd45xuYiMcRWnPbeVGWLYE:IO3EVdV0YXd4DuicNV3sE
Malware Config
Signatures
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Detects Windows executables referencing non-Windows User-Agents 1 IoCs
resource yara_rule static1/unpack001/out.upx INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
UPX dump on OEP (original entry point) 1 IoCs
resource yara_rule sample UPX -
resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 5c1aa6257d26fe7e54b79ef0a1e81af61926ae715e49124aff41a63d6cb5d5aa unpack001/out.upx
Files
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5c1aa6257d26fe7e54b79ef0a1e81af61926ae715e49124aff41a63d6cb5d5aa.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: 60KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 10KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 2KB - 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: 24KB - Virtual size: 20KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 4KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 24KB - Virtual size: 20KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.htext Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE