2024-08-29_5967f063c9135248f73173851a1f889d_cryptolocker

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General

Target

2024-08-29_5967f063c9135248f73173851a1f889d_cryptolocker
Size

63KB
MD5

5967f063c9135248f73173851a1f889d
SHA1

290a553343bdb3f835adf62fad04c536b95a233f
SHA256

79ff6ad6048c25328ef206b0f8a338953c8c1e8959b741c91f85ce435177f3e5
SHA512

b3e1c7f6ef56966e00b78dee60e9924cc618c14e9c18044279c166ce0e4ae413d949a2a28a38c70c2f5a864743353b26c9b73916d951d793bf35f787a2245170
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zaE/:0j+soPSMOtEvwDpjwizbR9Xwza0

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

2024-08-29_5967f063c9135248f73173851a1f889d_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

cc:80:70:81:05:55:ba:91:f7:7d:e9:c0:24:89:be:a2:17:76:86:05:b5:a2:e4:0c:83:6b:bd:2c:1c:fc:cc:09
Signer

Actual PE Digest

cc:80:70:81:05:55:ba:91:f7:7d:e9:c0:24:89:be:a2:17:76:86:05:b5:a2:e4:0c:83:6b:bd:2c:1c:fc:cc:09

Digest Algorithm

sha256

PE Digest Matches

false

cc:80:70:81:05:55:ba:91:f7:7d:e9:c0:24:89:be:a2:17:76:86:05:b5:a2:e4:0c:83:6b:bd:2c:1c:fc:cc:09
Signer

Actual PE Digest

cc:80:70:81:05:55:ba:91:f7:7d:e9:c0:24:89:be:a2:17:76:86:05:b5:a2:e4:0c:83:6b:bd:2c:1c:fc:cc:09

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

cc:80:70:81:05:55:ba:91:f7:7d:e9:c0:24:89:be:a2:17:76:86:05:b5:a2:e4:0c:83:6b:bd:2c:1c:fc:cc:09Signer

cc:80:70:81:05:55:ba:91:f7:7d:e9:c0:24:89:be:a2:17:76:86:05:b5:a2:e4:0c:83:6b:bd:2c:1c:fc:cc:09Signer

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

cc:80:70:81:05:55:ba:91:f7:7d:e9:c0:24:89:be:a2:17:76:86:05:b5:a2:e4:0c:83:6b:bd:2c:1c:fc:cc:09
Signer

cc:80:70:81:05:55:ba:91:f7:7d:e9:c0:24:89:be:a2:17:76:86:05:b5:a2:e4:0c:83:6b:bd:2c:1c:fc:cc:09
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