2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker

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General

Target

2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker
Size

64KB
MD5

a553ecef3733d9f2b78bded7e98b08ee
SHA1

38d1b0728f3927b97492db8f1bad2ff4d9e7b46a
SHA256

5482d716846374215533de19398c40dda537a7289b3dd8347a18216a06ee9056
SHA512

77d6438bcc659e45bec8edf9209ede5f5ea6947540e1b28488a83cbe742301f65dea8bb17bbb4066134df14c5df48cb48449a032a4cf0b7f004e378b241d7736
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zY:0j+soPSMOtEvwDpjwizbR9XwzY

Score

7^/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

2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_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

a9:20:0c:9d:eb:a0:9e:d1:f2:48:c7:c9:4a:1d:9d:e1:d0:57:6c:c9:ab:71:dd:bc:41:ff:91:65:ae:40:8c:0f
Signer

Actual PE Digest

a9:20:0c:9d:eb:a0:9e:d1:f2:48:c7:c9:4a:1d:9d:e1:d0:57:6c:c9:ab:71:dd:bc:41:ff:91:65:ae:40:8c:0f

Digest Algorithm

sha256

PE Digest Matches

false

a9:20:0c:9d:eb:a0:9e:d1:f2:48:c7:c9:4a:1d:9d:e1:d0:57:6c:c9:ab:71:dd:bc:41:ff:91:65:ae:40:8c:0f
Signer

Actual PE Digest

a9:20:0c:9d:eb:a0:9e:d1:f2:48:c7:c9:4a:1d:9d:e1:d0:57:6c:c9:ab:71:dd:bc:41:ff:91:65:ae:40:8c:0f

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

a9:20:0c:9d:eb:a0:9e:d1:f2:48:c7:c9:4a:1d:9d:e1:d0:57:6c:c9:ab:71:dd:bc:41:ff:91:65:ae:40:8c:0fSigner

a9:20:0c:9d:eb:a0:9e:d1:f2:48:c7:c9:4a:1d:9d:e1:d0:57:6c:c9:ab:71:dd:bc:41:ff:91:65:ae:40:8c:0fSigner

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

a9:20:0c:9d:eb:a0:9e:d1:f2:48:c7:c9:4a:1d:9d:e1:d0:57:6c:c9:ab:71:dd:bc:41:ff:91:65:ae:40:8c:0f
Signer

a9:20:0c:9d:eb:a0:9e:d1:f2:48:c7:c9:4a:1d:9d:e1:d0:57:6c:c9:ab:71:dd:bc:41:ff:91:65:ae:40:8c:0f
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