2024-09-08_cda51ff7f6cfab78866b5157dbbb15d0_cryptolocker

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General

Target

2024-09-08_cda51ff7f6cfab78866b5157dbbb15d0_cryptolocker
Size

63KB
MD5

cda51ff7f6cfab78866b5157dbbb15d0
SHA1

85dc733437c47ede54c688b1581f8273f224fb95
SHA256

00510fa98bae079bd0f350b3102ef14cf8b38a429e13057e504669959ce6b47b
SHA512

df070d7d7b3a9cba295d3b3a337b620a46b9c4ef1342c3f427388f4781c1cee3b667f2b81aaecd43832a9f90ff51548f1cf06e55025970c8bcfe9e46a121e977
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zG:0j+soPSMOtEvwDpjwizbR9XwzG

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

2024-09-08_cda51ff7f6cfab78866b5157dbbb15d0_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

cf:1a:fb:2d:9c:ca:fe:d0:a4:8b:37:63:db:8d:c9:57:71:5d:b2:38:9f:19:81:c0:07:72:bd:9a:f6:47:b9:dd
Signer

Actual PE Digest

cf:1a:fb:2d:9c:ca:fe:d0:a4:8b:37:63:db:8d:c9:57:71:5d:b2:38:9f:19:81:c0:07:72:bd:9a:f6:47:b9:dd

Digest Algorithm

sha256

PE Digest Matches

false

cf:1a:fb:2d:9c:ca:fe:d0:a4:8b:37:63:db:8d:c9:57:71:5d:b2:38:9f:19:81:c0:07:72:bd:9a:f6:47:b9:dd
Signer

Actual PE Digest

cf:1a:fb:2d:9c:ca:fe:d0:a4:8b:37:63:db:8d:c9:57:71:5d:b2:38:9f:19:81:c0:07:72:bd:9a:f6:47:b9:dd

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

cf:1a:fb:2d:9c:ca:fe:d0:a4:8b:37:63:db:8d:c9:57:71:5d:b2:38:9f:19:81:c0:07:72:bd:9a:f6:47:b9:ddSigner

cf:1a:fb:2d:9c:ca:fe:d0:a4:8b:37:63:db:8d:c9:57:71:5d:b2:38:9f:19:81:c0:07:72:bd:9a:f6:47:b9:ddSigner

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

cf:1a:fb:2d:9c:ca:fe:d0:a4:8b:37:63:db:8d:c9:57:71:5d:b2:38:9f:19:81:c0:07:72:bd:9a:f6:47:b9:dd
Signer

cf:1a:fb:2d:9c:ca:fe:d0:a4:8b:37:63:db:8d:c9:57:71:5d:b2:38:9f:19:81:c0:07:72:bd:9a:f6:47:b9:dd
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