Behavioral task
behavioral1
Sample
Nezur_External.zip
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Nezur.exe
Resource
win10-20240404-en
General
-
Target
Nezur_External.zip
-
Size
5.2MB
-
MD5
ea830229ad4d2a507e69ae9c87bb4aa1
-
SHA1
4ed31b1f6118d50902b59cf1e5986dcd57dbdc9c
-
SHA256
270a3d4d3232c0cd5e37c618dc168bf0d076cafac294430f211395636807d1e1
-
SHA512
ef4c4138493a00ca0fa9acf4903faf8ee39f111cce46d6666462197b1ac775855a2e5361c6f79049a5176975ad9b2899696afef4b48f8468e7d41ede1b0c3894
-
SSDEEP
98304:rB5d788fjtjkKIscDxlBhohRk6pdPNFd0LA3LW5t0zt59ofvRXI85Xjk:rBrtjdcR6pd1FuL4LuexfUb5I
Malware Config
Signatures
-
resource yara_rule static1/unpack001/Nezur.exe themida -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Nezur.exe
Files
-
Nezur_External.zip.zip
-
Nezur.exe.exe windows:6 windows x64 arch:x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
Size: 728KB - Virtual size: 1.4MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
Size: 158KB - Virtual size: 437KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 651KB - Virtual size: 973KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Size: 36KB - Virtual size: 61KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 15KB - Virtual size: 165KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 3KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.idata Size: 3KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 4KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 165KB - Virtual size: 165KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.themida Size: - Virtual size: 6.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.boot Size: 3.6MB - Virtual size: 3.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 16B - Virtual size: 4KB
IMAGE_SCN_MEM_READ