Behavioral task
behavioral1
Sample
2024-02-19_b771a658a140d1a2c3091aa29654bdb2_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-19_b771a658a140d1a2c3091aa29654bdb2_cryptolocker.exe
Resource
win10v2004-20231215-en
General
-
Target
2024-02-19_b771a658a140d1a2c3091aa29654bdb2_cryptolocker
-
Size
91KB
-
MD5
b771a658a140d1a2c3091aa29654bdb2
-
SHA1
97c707e77f5ddd37eb9c1319151bc1b200c2e57f
-
SHA256
5d5935ff170f0a73708fc607d97539c27fef683fac3e4680360abb68a5b508d6
-
SHA512
9bf0b3647181ba35a707b4e64ab71421c11798fd589e45fe3931efed7cc28aa866801b64d464cb5887a4bf2d1f0125330be6dc74ef02ca7519c1a7224b785a38
-
SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMy87UvI:zCsanOtEvwDpjB
Malware Config
Signatures
-
Detection of CryptoLocker Variants 1 IoCs
resource yara_rule sample CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule sample CryptoLocker_set1 -
UPX dump on OEP (original entry point) 1 IoCs
resource yara_rule sample UPX -
resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-02-19_b771a658a140d1a2c3091aa29654bdb2_cryptolocker
Files
-
2024-02-19_b771a658a140d1a2c3091aa29654bdb2_cryptolocker.exe windows:5 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
IMAGE_FILE_DEBUG_STRIPPED
Sections
UPX0 Size: 20KB - Virtual size: 32KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 10KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.imports Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE