2024-06-09_8dfeda6ff4cccee7dee5bc6daf26646f_cryptolocker

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General

Target

2024-06-09_8dfeda6ff4cccee7dee5bc6daf26646f_cryptolocker
Size

63KB
MD5

8dfeda6ff4cccee7dee5bc6daf26646f
SHA1

cfc5fee585f4f08158424d77694a60a617dd8829
SHA256

d6ab3bc6f8073aeda326bca9e85e8c2bec180c96c69e2268221b6c9720b3fcec
SHA512

d1684da10abaeae69c478c2fccc9fefa3795bd919c90a7cc2caf51d5c0e5c77cde4230ecbffc579a9aeab45a81c3fa337339965cd7e62e883fc9c21c8735308f
SSDEEP

1536:q6QFElP6n+gxmddpMOtEvwDpjpizbR9Xwzb:q6a+rdOOtEvwDpjwPvwf

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

2024-06-09_8dfeda6ff4cccee7dee5bc6daf26646f_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

19:10:e8:67:06:c1:29:6f:e2:9a:ec:c2:44:34:78:f6:c2:b7:31:2f:80:bd:85:95:7d:12:54:61:2e:85:4a:3f
Signer

Actual PE Digest

19:10:e8:67:06:c1:29:6f:e2:9a:ec:c2:44:34:78:f6:c2:b7:31:2f:80:bd:85:95:7d:12:54:61:2e:85:4a:3f

Digest Algorithm

sha256

PE Digest Matches

false

19:10:e8:67:06:c1:29:6f:e2:9a:ec:c2:44:34:78:f6:c2:b7:31:2f:80:bd:85:95:7d:12:54:61:2e:85:4a:3f
Signer

Actual PE Digest

19:10:e8:67:06:c1:29:6f:e2:9a:ec:c2:44:34:78:f6:c2:b7:31:2f:80:bd:85:95:7d:12:54:61:2e:85:4a:3f

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

19:10:e8:67:06:c1:29:6f:e2:9a:ec:c2:44:34:78:f6:c2:b7:31:2f:80:bd:85:95:7d:12:54:61:2e:85:4a:3fSigner

19:10:e8:67:06:c1:29:6f:e2:9a:ec:c2:44:34:78:f6:c2:b7:31:2f:80:bd:85:95:7d:12:54:61:2e:85:4a:3fSigner

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

19:10:e8:67:06:c1:29:6f:e2:9a:ec:c2:44:34:78:f6:c2:b7:31:2f:80:bd:85:95:7d:12:54:61:2e:85:4a:3f
Signer

19:10:e8:67:06:c1:29:6f:e2:9a:ec:c2:44:34:78:f6:c2:b7:31:2f:80:bd:85:95:7d:12:54:61:2e:85:4a:3f
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