2024-09-05_f3ac1159e19ef443620d7eb0137dbbc3_cryptolocker

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General

Target

2024-09-05_f3ac1159e19ef443620d7eb0137dbbc3_cryptolocker
Size

63KB
MD5

f3ac1159e19ef443620d7eb0137dbbc3
SHA1

ea70c5a81b1c228c6c649701970980155710735a
SHA256

bee716a73eafd24e904919e268ac6fc03c1afcfdb574c75e8f829fef5534065b
SHA512

a876d082a3d69a386ad2fbc8c3acc4395706dc6b321537f4164a227926e2aa327719d00aefda40b9c9d33ec94b3e35b31589cfcd5ef4e6731c781b39da3f390a
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9z0:0j+soPSMOtEvwDpjwizbR9Xwz0

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

2024-09-05_f3ac1159e19ef443620d7eb0137dbbc3_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

7b:35:66:de:28:ec:27:90:d4:19:6a:f8:2a:81:38:5a:56:bf:da:b9:36:12:e1:fa:11:19:3d:85:0a:09:4a:ba
Signer

Actual PE Digest

7b:35:66:de:28:ec:27:90:d4:19:6a:f8:2a:81:38:5a:56:bf:da:b9:36:12:e1:fa:11:19:3d:85:0a:09:4a:ba

Digest Algorithm

sha256

PE Digest Matches

false

7b:35:66:de:28:ec:27:90:d4:19:6a:f8:2a:81:38:5a:56:bf:da:b9:36:12:e1:fa:11:19:3d:85:0a:09:4a:ba
Signer

Actual PE Digest

7b:35:66:de:28:ec:27:90:d4:19:6a:f8:2a:81:38:5a:56:bf:da:b9:36:12:e1:fa:11:19:3d:85:0a:09:4a:ba

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

7b:35:66:de:28:ec:27:90:d4:19:6a:f8:2a:81:38:5a:56:bf:da:b9:36:12:e1:fa:11:19:3d:85:0a:09:4a:baSigner

7b:35:66:de:28:ec:27:90:d4:19:6a:f8:2a:81:38:5a:56:bf:da:b9:36:12:e1:fa:11:19:3d:85:0a:09:4a:baSigner

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

7b:35:66:de:28:ec:27:90:d4:19:6a:f8:2a:81:38:5a:56:bf:da:b9:36:12:e1:fa:11:19:3d:85:0a:09:4a:ba
Signer

7b:35:66:de:28:ec:27:90:d4:19:6a:f8:2a:81:38:5a:56:bf:da:b9:36:12:e1:fa:11:19:3d:85:0a:09:4a:ba
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