Behavioral task
behavioral1
Sample
calc.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
calc.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
out.exe
Resource
win7-20240704-en
Behavioral task
behavioral4
Sample
out.exe
Resource
win10v2004-20240802-en
General
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Target
calc (1).zip
-
Size
196KB
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MD5
6868b1bd5697ab72cc644da0fdd6d106
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SHA1
d7aa5c5399bd36e95c7021c8154031e1283c70b5
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SHA256
4c95f07e2269b31bbc3b577ac37a9f1e5890d475076eac2402b4bd0d2b834b78
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SHA512
8c9cc99bd89cc58eb425a4b831460e98daa50ba75b54963169ec4874eeb206279d77023370e27826827d01903d56339ebc620b607e4913e20fc11f756b56108f
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SSDEEP
3072:IcE+cOzNKBpqYpiARPv7dBCBF0WYwF4oi24UKMsSrL5rgpJIxPU79HSNxd:C+Z63pi8d4BFLZBiBIlV+79Hc
Malware Config
Signatures
-
resource yara_rule static1/unpack001/calc.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/calc.exe unpack002/out.upx
Files
-
calc (1).zip.zip
Password: strange_calc
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calc.exe.exe windows:4 windows x86 arch:x86
Password: strange_calc
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
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: 348KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 193KB - Virtual size: 196KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 8KB
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
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
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: 349KB - Virtual size: 348KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 47KB - Virtual size: 47KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 9KB - Virtual size: 114KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 12KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ