2024-06-12_1c225e42ce7a5eb50a72532e91a7ac3c_cryptolocker

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General

Target

2024-06-12_1c225e42ce7a5eb50a72532e91a7ac3c_cryptolocker
Size

41KB
MD5

1c225e42ce7a5eb50a72532e91a7ac3c
SHA1

2423853f0d17e9ffc0a5ab656d3a03ebe3782000
SHA256

0e99e084007157a0fbafaaa8bfc635b580e8e25267d4607bc212ae3d660eb857
SHA512

93df18ae4e86a2ad21c20a0f7792d3de24bb17c3ee1c4d99b44272dd5faf25ebd2c29006ca96c626f1c1e9e76600626e167c13fd25d5440119dbeb47c7cb5db8
SSDEEP

768:q0mnjFom/kLyMro2GtOOtEvwDpjeXOQ69zbjlAAX5e9zm:q0mnpomddpMOtEvwDpjeizbR9Xwzm

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

2024-06-12_1c225e42ce7a5eb50a72532e91a7ac3c_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

9d:f1:d6:f3:35:66:3f:59:e9:3a:92:ef:58:c2:0c:d7:83:3e:1f:dd:d0:af:0b:8b:ae:c5:00:98:f0:1b:25:9f
Signer

Actual PE Digest

9d:f1:d6:f3:35:66:3f:59:e9:3a:92:ef:58:c2:0c:d7:83:3e:1f:dd:d0:af:0b:8b:ae:c5:00:98:f0:1b:25:9f

Digest Algorithm

sha256

PE Digest Matches

false

9d:f1:d6:f3:35:66:3f:59:e9:3a:92:ef:58:c2:0c:d7:83:3e:1f:dd:d0:af:0b:8b:ae:c5:00:98:f0:1b:25:9f
Signer

Actual PE Digest

9d:f1:d6:f3:35:66:3f:59:e9:3a:92:ef:58:c2:0c:d7:83:3e:1f:dd:d0:af:0b:8b:ae:c5:00:98:f0:1b:25:9f

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

Sections

UPX0
Size: - Virtual size: 32KB

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

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

9d:f1:d6:f3:35:66:3f:59:e9:3a:92:ef:58:c2:0c:d7:83:3e:1f:dd:d0:af:0b:8b:ae:c5:00:98:f0:1b:25:9fSigner

9d:f1:d6:f3:35:66:3f:59:e9:3a:92:ef:58:c2:0c:d7:83:3e:1f:dd:d0:af:0b:8b:ae:c5:00:98:f0:1b:25:9fSigner

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 32KB

UPX1 Size: 10KB - Virtual size: 12KB

.rsrc Size: 11KB - Virtual size: 12KB

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

9d:f1:d6:f3:35:66:3f:59:e9:3a:92:ef:58:c2:0c:d7:83:3e:1f:dd:d0:af:0b:8b:ae:c5:00:98:f0:1b:25:9f
Signer

9d:f1:d6:f3:35:66:3f:59:e9:3a:92:ef:58:c2:0c:d7:83:3e:1f:dd:d0:af:0b:8b:ae:c5:00:98:f0:1b:25:9f
Signer

UPX0
Size: - Virtual size: 32KB

UPX1
Size: 10KB - Virtual size: 12KB

.rsrc
Size: 11KB - Virtual size: 12KB