2024-10-01_4f1a297b5507c2ba4c6e9562c88df7f5_cryptolocker

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General

Target

2024-10-01_4f1a297b5507c2ba4c6e9562c88df7f5_cryptolocker
Size

64KB
MD5

4f1a297b5507c2ba4c6e9562c88df7f5
SHA1

fed5b584b19abd2f5a071d9be05440013c77f4ee
SHA256

520dcc7c7fde4fe025bb5fbba08779aeb4a4357b361b569819919c95f94180cc
SHA512

f118b0b9f58f6a1dd5f2ef436d3e023ccedd3e95daf64890e6a179ab9d0a6a61bebfe092ee71438cb810fd0ee0dd4d9b2a521c335ee962d0aa8219cc8e905231
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zX5:0j+soPSMOtEvwDpjwizbR9XwzX5

Score

5^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
sample	upx

Files

2024-10-01_4f1a297b5507c2ba4c6e9562c88df7f5_cryptolocker
.exe windows:5 windows x86 arch:x86

Code Sign

33:00:00:04:39:f6:1f:7a:67:6d:a0:00:af:00:00:00:00:04:39
Certificate

Issuer

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

02/09/2021, 18:25

Not After

01/09/2022, 18:25

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0c:52:4c:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

06/07/2010, 20:40

Not After

06/07/2025, 20:50

Subject

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

33:00:00:02:55:18:1d:a4:2e:e0:86:fc:15:00:00:00:00:02:55
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

02/09/2021, 18:33

Not After

01/09/2022, 18:33

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/07/2011, 20:59

Not After

08/07/2026, 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

6a:53:d5:dd:9a:d0:d0:98:76:7b:02:2f:5c:8b:76:bb:45:21:ce:92:92:7d:38:e7:ed:60:ae:8f:12:76:51:ff
Signer

Actual PE Digest

6a:53:d5:dd:9a:d0:d0:98:76:7b:02:2f:5c:8b:76:bb:45:21:ce:92:92:7d:38:e7:ed:60:ae:8f:12:76:51:ff

Digest Algorithm

sha256

PE Digest Matches

false

6a:53:d5:dd:9a:d0:d0:98:76:7b:02:2f:5c:8b:76:bb:45:21:ce:92:92:7d:38:e7:ed:60:ae:8f:12:76:51:ff
Signer

Actual PE Digest

6a:53:d5:dd:9a:d0:d0:98:76:7b:02:2f:5c:8b:76:bb:45:21:ce:92:92:7d:38:e7:ed:60:ae:8f:12:76:51:ff

Digest Algorithm

sha256

PE Digest Matches

false

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

Sharing

General

Malware Config

Signatures

Files

Code Sign

33:00:00:04:39:f6:1f:7a:67:6d:a0:00:af:00:00:00:00:04:39Certificate

Extended Key Usages

61:0c:52:4c:00:00:00:00:00:03Certificate

Key Usages

33:00:00:02:55:18:1d:a4:2e:e0:86:fc:15:00:00:00:00:02:55Certificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

6a:53:d5:dd:9a:d0:d0:98:76:7b:02:2f:5c:8b:76:bb:45:21:ce:92:92:7d:38:e7:ed:60:ae:8f:12:76:51:ffSigner

6a:53:d5:dd:9a:d0:d0:98:76:7b:02:2f:5c:8b:76:bb:45:21:ce:92:92:7d:38:e7:ed:60:ae:8f:12:76:51:ffSigner

Headers

File Characteristics

Sections

UPX0 Size: 20KB - Virtual size: 32KB

UPX1 Size: 10KB - Virtual size: 12KB

.rsrc Size: 11KB - Virtual size: 12KB

.imports Size: 1024B - Virtual size: 4KB

33:00:00:04:39:f6:1f:7a:67:6d:a0:00:af:00:00:00:00:04:39
Certificate

61:0c:52:4c:00:00:00:00:00:03
Certificate

33:00:00:02:55:18:1d:a4:2e:e0:86:fc:15:00:00:00:00:02:55
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

6a:53:d5:dd:9a:d0:d0:98:76:7b:02:2f:5c:8b:76:bb:45:21:ce:92:92:7d:38:e7:ed:60:ae:8f:12:76:51:ff
Signer

6a:53:d5:dd:9a:d0:d0:98:76:7b:02:2f:5c:8b:76:bb:45:21:ce:92:92:7d:38:e7:ed:60:ae:8f:12:76:51:ff
Signer

UPX0
Size: 20KB - Virtual size: 32KB

UPX1
Size: 10KB - Virtual size: 12KB

.rsrc
Size: 11KB - Virtual size: 12KB

.imports
Size: 1024B - Virtual size: 4KB