Behavioral task
behavioral1
Sample
2024-02-03_b58b77fc91d30e807dbb8e64093b53f4_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-03_b58b77fc91d30e807dbb8e64093b53f4_cryptolocker.exe
Resource
win10v2004-20231222-en
General
-
Target
2024-02-03_b58b77fc91d30e807dbb8e64093b53f4_cryptolocker
-
Size
90KB
-
MD5
b58b77fc91d30e807dbb8e64093b53f4
-
SHA1
7c3335f74e8371b164708a0c0f51e2531a77cead
-
SHA256
1e1d2fcc0f8186a7e37baeed373c823bcbf83ab9f90cd80ed4805ed9c7060801
-
SHA512
9821e1417e1493cdc749fe48630287827534dfae5f3edb87afbcfdd408098df852be6ba46d6d3fd5c0efd7fecd0475d123d746c1508a9990332cd486c90b58f3
-
SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMy87I:zCsanOtEvwDpjI
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 2024-02-03_b58b77fc91d30e807dbb8e64093b53f4_cryptolocker
Files
-
2024-02-03_b58b77fc91d30e807dbb8e64093b53f4_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