Static task
static1
Behavioral task
behavioral1
Sample
builder.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
builder.exe
Resource
win10v2004-20230703-en
Behavioral task
behavioral3
Sample
dnlib.dll
Resource
win7-20230712-en
Behavioral task
behavioral4
Sample
dnlib.dll
Resource
win10v2004-20230703-en
General
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Target
release.zip
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Size
416KB
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MD5
4b2f73e9c4ee524f85817c6c69e3f70c
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SHA1
5163c5b2941f1df06ece8e62c9134f3e593f2b54
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SHA256
78461305d6c498b5b93ba75e12f5dd8e510f10f265d8eda3741b94055d86d6b9
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SHA512
a67a4cf7c94b1b17bd3d49113ce3699c4117ca54410b86f99baf9e9cb08913ad0d88f7a09cb21ed2593b12adaf3012db3025729c1e517fbc591389d3c809f8db
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SSDEEP
6144:BfJaaCXC4Iv3+o1oLo2d0Yi7rXHELA2gmTe4QweaRexOwxzz+uAVj0kfRMD:BfJ13+GoLo2d5ifXHE8134QwYOwFSFR6
Malware Config
Signatures
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Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/builder.exe unpack001/dnlib.dll
Files
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release.zip.zip
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builder.exe.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorExeMain
Sections
.text Size: 7KB - Virtual size: 7KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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dnlib.dll.dll windows x86
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL
Imports
mscoree
_CorDllMain
Sections
.text Size: 1.1MB - Virtual size: 1.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ