Behavioral task
behavioral1
Sample
DNS_OPTIMIZER.exe
Resource
win10-20240221-en
Behavioral task
behavioral2
Sample
out.exe
Resource
win10-20240221-en
General
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Target
DNS_OPTIMIZER.exe
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Size
5.0MB
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MD5
2a26c182bcc0afee88434e64b7b633be
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SHA1
b33778303d37bb6a2e6fe4861c72390a41f3ab7a
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SHA256
32debd21dbe46268e2305271fd63b96afa4284ffa3cf7ae005f1b70e79699ff1
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SHA512
3b4ab8a648864039dd2cf9f00c3d26c15dc2c191589e346240b5cb024c81a5b49037f8db426554c74560ebaf198ad21e67cc90a61cb505ab3ead0f176ad58de9
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SSDEEP
98304:4WZu6rAhzWyY5uwWsyIC+64ZFmFkrRVA+BqetVnEVVcdelwEzbTEUEs8T/F:4WZFrAhzjTsyIC+6hKketVEV2de2UbOJ
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource DNS_OPTIMIZER.exe unpack001/out.upx
Files
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DNS_OPTIMIZER.exe.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_AGGRESIVE_WS_TRIM
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 76KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 21KB - Virtual size: 24KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 3KB - 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_AGGRESIVE_WS_TRIM
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 22KB - Virtual size: 22KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 6KB - Virtual size: 23KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 34KB - Virtual size: 33KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ