2024-10-05_a4fa66c4ce348043ebf833213cc2c7c2_cryptolocker

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General

Target

2024-10-05_a4fa66c4ce348043ebf833213cc2c7c2_cryptolocker
Size

64KB
MD5

a4fa66c4ce348043ebf833213cc2c7c2
SHA1

caee777dae1afb7dee11c6375c5d5e3293bb7c4c
SHA256

3b8107a9da0c1ca7943f4ee9269fe49378e4f9b8c3083f09dd8e1218d38adf72
SHA512

2e4b3828da1745b6899e1586037bd2d47e98c55888cbc056d2780f8b21101219b853c0df3b2e70deafc4444d14e1e78cf8773b1b274383c56b8fac6673135a7d
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zg:0j+soPSMOtEvwDpjwizbR9Xwzg

Score

5^/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

2024-10-05_a4fa66c4ce348043ebf833213cc2c7c2_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

2c:8a:cc:b1:b2:f4:ce:57:7a:f9:45:d2:8b:00:b2:36:3e:c5:1b:f4:74:aa:e1:40:d9:fd:89:cf:6d:79:d3:00
Signer

Actual PE Digest

2c:8a:cc:b1:b2:f4:ce:57:7a:f9:45:d2:8b:00:b2:36:3e:c5:1b:f4:74:aa:e1:40:d9:fd:89:cf:6d:79:d3:00

Digest Algorithm

sha256

PE Digest Matches

false

2c:8a:cc:b1:b2:f4:ce:57:7a:f9:45:d2:8b:00:b2:36:3e:c5:1b:f4:74:aa:e1:40:d9:fd:89:cf:6d:79:d3:00
Signer

Actual PE Digest

2c:8a:cc:b1:b2:f4:ce:57:7a:f9:45:d2:8b:00:b2:36:3e:c5:1b:f4:74:aa:e1:40:d9:fd:89:cf:6d:79:d3:00

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

2c:8a:cc:b1:b2:f4:ce:57:7a:f9:45:d2:8b:00:b2:36:3e:c5:1b:f4:74:aa:e1:40:d9:fd:89:cf:6d:79:d3:00Signer

2c:8a:cc:b1:b2:f4:ce:57:7a:f9:45:d2:8b:00:b2:36:3e:c5:1b:f4:74:aa:e1:40:d9:fd:89:cf:6d:79:d3:00Signer

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

2c:8a:cc:b1:b2:f4:ce:57:7a:f9:45:d2:8b:00:b2:36:3e:c5:1b:f4:74:aa:e1:40:d9:fd:89:cf:6d:79:d3:00
Signer

2c:8a:cc:b1:b2:f4:ce:57:7a:f9:45:d2:8b:00:b2:36:3e:c5:1b:f4:74:aa:e1:40:d9:fd:89:cf:6d:79:d3:00
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