2024-09-01_f847b59d4630a9df57b91d3a5446d3f6_cryptolocker

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General

Target

2024-09-01_f847b59d4630a9df57b91d3a5446d3f6_cryptolocker
Size

63KB
MD5

f847b59d4630a9df57b91d3a5446d3f6
SHA1

e88940804384cde85bca9bf74bbca775dbfdb036
SHA256

50d189f1261905e132b691ca8592853edb76d24239d107637e001f3c741ab622
SHA512

f4ec8488259b0b38232ec2bf59bd5b2c3addf29d6c4711099799a36ceab31c810f7627f3d7908b489249e2a419123e1b75f5059e1e5b7e21fc44037b095496ce
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zB:0j+soPSMOtEvwDpjwizbR9XwzB

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

2024-09-01_f847b59d4630a9df57b91d3a5446d3f6_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

36:f7:56:75:21:a0:e6:7c:76:9d:01:d1:77:29:b9:71:11:5c:6d:2d:74:39:55:80:2c:e6:76:ce:e7:c5:53:32
Signer

Actual PE Digest

36:f7:56:75:21:a0:e6:7c:76:9d:01:d1:77:29:b9:71:11:5c:6d:2d:74:39:55:80:2c:e6:76:ce:e7:c5:53:32

Digest Algorithm

sha256

PE Digest Matches

false

36:f7:56:75:21:a0:e6:7c:76:9d:01:d1:77:29:b9:71:11:5c:6d:2d:74:39:55:80:2c:e6:76:ce:e7:c5:53:32
Signer

Actual PE Digest

36:f7:56:75:21:a0:e6:7c:76:9d:01:d1:77:29:b9:71:11:5c:6d:2d:74:39:55:80:2c:e6:76:ce:e7:c5:53:32

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

36:f7:56:75:21:a0:e6:7c:76:9d:01:d1:77:29:b9:71:11:5c:6d:2d:74:39:55:80:2c:e6:76:ce:e7:c5:53:32Signer

36:f7:56:75:21:a0:e6:7c:76:9d:01:d1:77:29:b9:71:11:5c:6d:2d:74:39:55:80:2c:e6:76:ce:e7:c5:53:32Signer

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

36:f7:56:75:21:a0:e6:7c:76:9d:01:d1:77:29:b9:71:11:5c:6d:2d:74:39:55:80:2c:e6:76:ce:e7:c5:53:32
Signer

36:f7:56:75:21:a0:e6:7c:76:9d:01:d1:77:29:b9:71:11:5c:6d:2d:74:39:55:80:2c:e6:76:ce:e7:c5:53:32
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