2024-06-09_0d63cf75f46b4beb17e734cf3d92a0ed_cryptolocker

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General

Target

2024-06-09_0d63cf75f46b4beb17e734cf3d92a0ed_cryptolocker
Size

63KB
MD5

0d63cf75f46b4beb17e734cf3d92a0ed
SHA1

ef4036f7d7dfec5aef5dd7c78f703a6bb4cdfd2f
SHA256

c46daf51fa6ae5abb46cf8b175e89a1766bcb2e73cfd63ee6fa983e2dc0d68ae
SHA512

b5984e51c007b9cf3a14c85473f346c49aee3b4edf6387fa1143292c55c5163dfe8626a91a73b496aeacbc893e689d0587e99e214e4593109c7f58ac7ba73b3b
SSDEEP

1536:q6QFElP6n+gxmddpMOtEvwDpjpizbR9XwzH:q6a+rdOOtEvwDpjwPvwD

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_0d63cf75f46b4beb17e734cf3d92a0ed_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

e3:c3:0c:27:e3:91:b3:b5:23:29:22:7c:6f:36:5e:31:c1:25:8d:69:33:9d:e0:46:5b:95:d4:df:17:70:06:3a
Signer

Actual PE Digest

e3:c3:0c:27:e3:91:b3:b5:23:29:22:7c:6f:36:5e:31:c1:25:8d:69:33:9d:e0:46:5b:95:d4:df:17:70:06:3a

Digest Algorithm

sha256

PE Digest Matches

false

e3:c3:0c:27:e3:91:b3:b5:23:29:22:7c:6f:36:5e:31:c1:25:8d:69:33:9d:e0:46:5b:95:d4:df:17:70:06:3a
Signer

Actual PE Digest

e3:c3:0c:27:e3:91:b3:b5:23:29:22:7c:6f:36:5e:31:c1:25:8d:69:33:9d:e0:46:5b:95:d4:df:17:70:06:3a

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

e3:c3:0c:27:e3:91:b3:b5:23:29:22:7c:6f:36:5e:31:c1:25:8d:69:33:9d:e0:46:5b:95:d4:df:17:70:06:3aSigner

e3:c3:0c:27:e3:91:b3:b5:23:29:22:7c:6f:36:5e:31:c1:25:8d:69:33:9d:e0:46:5b:95:d4:df:17:70:06:3aSigner

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

e3:c3:0c:27:e3:91:b3:b5:23:29:22:7c:6f:36:5e:31:c1:25:8d:69:33:9d:e0:46:5b:95:d4:df:17:70:06:3a
Signer

e3:c3:0c:27:e3:91:b3:b5:23:29:22:7c:6f:36:5e:31:c1:25:8d:69:33:9d:e0:46:5b:95:d4:df:17:70:06:3a
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