2024-10-01_91c8afa91ec48f00e2e7cb11e40e19aa_cryptolocker

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General

Target

2024-10-01_91c8afa91ec48f00e2e7cb11e40e19aa_cryptolocker
Size

64KB
MD5

91c8afa91ec48f00e2e7cb11e40e19aa
SHA1

64d841adcbeb61a208df26e94832b13d3702bdd5
SHA256

bb9e65b7080b61cd69952ec573a54fbe4508f5e0a3c5c2d4c262912598476696
SHA512

fe13c6a148d5f2cd191dc87b779524f7d66ba2171968b703ad9f950214e90331aeac9e190d2bbb1e3b8dcbff615bf82e42e82b806ddedf6c4fd517e16d4da0fb
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zK:0j+soPSMOtEvwDpjwizbR9XwzK

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

2024-10-01_91c8afa91ec48f00e2e7cb11e40e19aa_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

e6:60:f0:62:1c:26:86:60:f5:ff:07:da:8b:5c:15:91:c5:12:73:0d:17:37:cf:62:53:58:e5:b1:ae:a0:85:40
Signer

Actual PE Digest

e6:60:f0:62:1c:26:86:60:f5:ff:07:da:8b:5c:15:91:c5:12:73:0d:17:37:cf:62:53:58:e5:b1:ae:a0:85:40

Digest Algorithm

sha256

PE Digest Matches

false

e6:60:f0:62:1c:26:86:60:f5:ff:07:da:8b:5c:15:91:c5:12:73:0d:17:37:cf:62:53:58:e5:b1:ae:a0:85:40
Signer

Actual PE Digest

e6:60:f0:62:1c:26:86:60:f5:ff:07:da:8b:5c:15:91:c5:12:73:0d:17:37:cf:62:53:58:e5:b1:ae:a0:85:40

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

e6:60:f0:62:1c:26:86:60:f5:ff:07:da:8b:5c:15:91:c5:12:73:0d:17:37:cf:62:53:58:e5:b1:ae:a0:85:40Signer

e6:60:f0:62:1c:26:86:60:f5:ff:07:da:8b:5c:15:91:c5:12:73:0d:17:37:cf:62:53:58:e5:b1:ae:a0:85:40Signer

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

e6:60:f0:62:1c:26:86:60:f5:ff:07:da:8b:5c:15:91:c5:12:73:0d:17:37:cf:62:53:58:e5:b1:ae:a0:85:40
Signer

e6:60:f0:62:1c:26:86:60:f5:ff:07:da:8b:5c:15:91:c5:12:73:0d:17:37:cf:62:53:58:e5:b1:ae:a0:85:40
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