2024-09-07_4b53859f8327957dcd98a1bcc03ea967_cryptolocker

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General

Target

2024-09-07_4b53859f8327957dcd98a1bcc03ea967_cryptolocker
Size

64KB
MD5

4b53859f8327957dcd98a1bcc03ea967
SHA1

16fbebd1068e9d0bf25edc931d61509e83ce2753
SHA256

51e31eef9d6dff0755321df730539f9c3c6a52cea34ba91de75879ec20fd9844
SHA512

5f1eaef1fd28447e859e4c3f7a9d95d08150995823d17835f2e8c260163d88bd01d25e43be79be4347b43645fea3adaa78f9fcf03a282d57de68fe3bb22d9d85
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zI:0j+soPSMOtEvwDpjwizbR9XwzI

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

2024-09-07_4b53859f8327957dcd98a1bcc03ea967_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

28:d6:c3:62:36:90:91:3c:ee:e3:1f:33:86:98:6b:20:73:fc:50:2d:7a:d0:6b:8e:f5:31:8d:14:fe:bf:fb:fe
Signer

Actual PE Digest

28:d6:c3:62:36:90:91:3c:ee:e3:1f:33:86:98:6b:20:73:fc:50:2d:7a:d0:6b:8e:f5:31:8d:14:fe:bf:fb:fe

Digest Algorithm

sha256

PE Digest Matches

false

28:d6:c3:62:36:90:91:3c:ee:e3:1f:33:86:98:6b:20:73:fc:50:2d:7a:d0:6b:8e:f5:31:8d:14:fe:bf:fb:fe
Signer

Actual PE Digest

28:d6:c3:62:36:90:91:3c:ee:e3:1f:33:86:98:6b:20:73:fc:50:2d:7a:d0:6b:8e:f5:31:8d:14:fe:bf:fb:fe

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

28:d6:c3:62:36:90:91:3c:ee:e3:1f:33:86:98:6b:20:73:fc:50:2d:7a:d0:6b:8e:f5:31:8d:14:fe:bf:fb:feSigner

28:d6:c3:62:36:90:91:3c:ee:e3:1f:33:86:98:6b:20:73:fc:50:2d:7a:d0:6b:8e:f5:31:8d:14:fe:bf:fb:feSigner

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

28:d6:c3:62:36:90:91:3c:ee:e3:1f:33:86:98:6b:20:73:fc:50:2d:7a:d0:6b:8e:f5:31:8d:14:fe:bf:fb:fe
Signer

28:d6:c3:62:36:90:91:3c:ee:e3:1f:33:86:98:6b:20:73:fc:50:2d:7a:d0:6b:8e:f5:31:8d:14:fe:bf:fb:fe
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