Behavioral task
behavioral1
Sample
siglowebold.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
siglowebold.exe
Resource
win10v2004-20230220-en
General
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Target
siglowebold.exe
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Size
3.3MB
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MD5
221f9e9ba147f6a189c6b0b7d5c5c08b
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SHA1
d426c692ae73ded2689c81c3dcfb1aafbd5db353
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SHA256
140f2b392b76f408cf22e34f24e03784bf06113c85c483d67e317d8bda795e2c
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SHA512
9054343533620b8e0393994fc63a28409440dc3eecb7db1b6ffe26d5dcb0594c4aa0a2d9e636f557e38150762490417da87c5a6da90209ada1ef87692f9a7728
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SSDEEP
98304:j1eciAKEu9ModJXmKFux8O5CnA72DvYBkI6oyQik+VNC:j4chZu2om3x8pDvYck+
Malware Config
Signatures
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ModiLoader First Stage 1 IoCs
resource yara_rule static1/unpack001/out.upx modiloader_stage1 -
Modiloader family
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource siglowebold.exe unpack001/out.upx
Files
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siglowebold.exe.exe windows x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
UPX0 Size: - Virtual size: 1.6MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 3.3MB - Virtual size: 3.3MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 14KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 2.0MB - Virtual size: 2.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 98KB - Virtual size: 97KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 16KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 12KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 24B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 54B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 107KB - Virtual size: 107KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 2.3MB - Virtual size: 2.3MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
JCLDEBUG Size: 145KB - Virtual size: 145KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ