Behavioral task
behavioral1
Sample
letter.txt .exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
letter.txt .exe
Resource
win10v2004-20240709-en
General
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Target
letter.txt .exe
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Size
29KB
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MD5
0af3e56a2b63cf3eadbc06d351f6d6bf
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SHA1
f67bd0030a6b2f5fd3eeaa4d5404fcde67cffe91
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SHA256
43f33ebf187b9f3a986934d320e84df8e6da4e90c68c6928a778309fada53db4
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SHA512
dbdf4027b64d8b2a50bcf25656e3ea049575e7ef7c2a67bd1e4f163e5a4c69c117cc7bdaf0dd7653a026cace4fd1a73519d9c0352621afcfdb0fb24a0a271570
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/DZ:AEwVs+0jNDY1qi/q1
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource letter.txt .exe
Files
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letter.txt .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_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 32KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 24KB - Virtual size: 24KB
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
.text Size: 512B - Virtual size: 511B
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE