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
win7-20240708-en
Behavioral task
behavioral4
Sample
out.exe
Resource
win10v2004-20240802-en
General
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Target
calc.exe
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Size
201KB
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MD5
2f9fdad776d8626f2ce8625211831e91
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SHA1
21d8413eb0d60b36fc249f8025c277b557fefde3
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SHA256
9b66a8ea0f1c64965b06e7a45afbe56f2d4e6d5ef65f32446defccbebe730813
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SHA512
2abd61c6bea7c748f81cdd18133582217bd06dd19506f13f89953f8c7bd662fc5233540b9f56c57aa94e038c674128fc46dd280e2f7db642343fc5a45da25feb
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SSDEEP
6144:96LkVO8A1X2og0tEHH45Y0KTIVaTycTVDNe4oI:TMJ1X2og0MHGKT3RRwG
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource calc.exe unpack001/out.upx
Files
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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