2024-09-05_a774b8b830160d458dc802c42b2a26e1_cryptolocker

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General

Target

2024-09-05_a774b8b830160d458dc802c42b2a26e1_cryptolocker
Size

63KB
MD5

a774b8b830160d458dc802c42b2a26e1
SHA1

ca90218a9990033a86204df5c74ff37e2d44f723
SHA256

2f57b4346a4deefa6817711e8584893cd83d087248e6b061e73082c05f39e311
SHA512

58091a65059382dc924a4420a337c18582336e537330f79c871b527925a19d9836069a3e8e7a147f9b87729bd3fa27d8a9f2640ad0411c0a005ddfb7ea3c6b77
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zR:0j+soPSMOtEvwDpjwizbR9XwzR

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_a774b8b830160d458dc802c42b2a26e1_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

26:b5:90:f0:64:87:6b:33:04:38:43:6d:7d:50:13:b6:46:a3:b7:f3:25:e8:35:d9:0a:01:d1:df:03:52:03:d0
Signer

Actual PE Digest

26:b5:90:f0:64:87:6b:33:04:38:43:6d:7d:50:13:b6:46:a3:b7:f3:25:e8:35:d9:0a:01:d1:df:03:52:03:d0

Digest Algorithm

sha256

PE Digest Matches

false

26:b5:90:f0:64:87:6b:33:04:38:43:6d:7d:50:13:b6:46:a3:b7:f3:25:e8:35:d9:0a:01:d1:df:03:52:03:d0
Signer

Actual PE Digest

26:b5:90:f0:64:87:6b:33:04:38:43:6d:7d:50:13:b6:46:a3:b7:f3:25:e8:35:d9:0a:01:d1:df:03:52:03:d0

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

26:b5:90:f0:64:87:6b:33:04:38:43:6d:7d:50:13:b6:46:a3:b7:f3:25:e8:35:d9:0a:01:d1:df:03:52:03:d0Signer

26:b5:90:f0:64:87:6b:33:04:38:43:6d:7d:50:13:b6:46:a3:b7:f3:25:e8:35:d9:0a:01:d1:df:03:52:03:d0Signer

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

26:b5:90:f0:64:87:6b:33:04:38:43:6d:7d:50:13:b6:46:a3:b7:f3:25:e8:35:d9:0a:01:d1:df:03:52:03:d0
Signer

26:b5:90:f0:64:87:6b:33:04:38:43:6d:7d:50:13:b6:46:a3:b7:f3:25:e8:35:d9:0a:01:d1:df:03:52:03:d0
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