2024-06-20_07d4b42d1e7b0f97ee9d43b4fef5ed74_cryptolocker

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General

Target

2024-06-20_07d4b42d1e7b0f97ee9d43b4fef5ed74_cryptolocker
Size

63KB
MD5

07d4b42d1e7b0f97ee9d43b4fef5ed74
SHA1

1e2fe8234d812223fa67585ddbd780672ebb150e
SHA256

bed99faddd8ae9329072bf9b49677eb7bbfb6891e059b69e3ca952896ad58b4b
SHA512

847ce9d7dc53165177143c0927720773dfbaab131f7a8847d5c3e6592582faca6b758c248eb74cf78e0b5adbd607d7368cc6462dcfb7a8564185f835ecdbd8c2
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zz:0j+soPSMOtEvwDpjwizbR9Xwzz

Score

10^/10

upx

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
sample	upx

Files

2024-06-20_07d4b42d1e7b0f97ee9d43b4fef5ed74_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

56:2b:88:93:0b:0a:16:f5:37:33:2e:1a:11:0d:0c:cc:b3:b1:b3:71:95:24:2a:1f:ae:8a:84:fd:15:50:01:b0
Signer

Actual PE Digest

56:2b:88:93:0b:0a:16:f5:37:33:2e:1a:11:0d:0c:cc:b3:b1:b3:71:95:24:2a:1f:ae:8a:84:fd:15:50:01:b0

Digest Algorithm

sha256

PE Digest Matches

false

56:2b:88:93:0b:0a:16:f5:37:33:2e:1a:11:0d:0c:cc:b3:b1:b3:71:95:24:2a:1f:ae:8a:84:fd:15:50:01:b0
Signer

Actual PE Digest

56:2b:88:93:0b:0a:16:f5:37:33:2e:1a:11:0d:0c:cc:b3:b1:b3:71:95:24:2a:1f:ae:8a:84:fd:15:50:01:b0

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

56:2b:88:93:0b:0a:16:f5:37:33:2e:1a:11:0d:0c:cc:b3:b1:b3:71:95:24:2a:1f:ae:8a:84:fd:15:50:01:b0Signer

56:2b:88:93:0b:0a:16:f5:37:33:2e:1a:11:0d:0c:cc:b3:b1:b3:71:95:24:2a:1f:ae:8a:84:fd:15:50:01:b0Signer

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

56:2b:88:93:0b:0a:16:f5:37:33:2e:1a:11:0d:0c:cc:b3:b1:b3:71:95:24:2a:1f:ae:8a:84:fd:15:50:01:b0
Signer

56:2b:88:93:0b:0a:16:f5:37:33:2e:1a:11:0d:0c:cc:b3:b1:b3:71:95:24:2a:1f:ae:8a:84:fd:15:50:01:b0
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