2024-09-15_bbfc176a5f3ed96537811728e61e948c_cryptolocker

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General

Target

2024-09-15_bbfc176a5f3ed96537811728e61e948c_cryptolocker
Size

63KB
MD5

bbfc176a5f3ed96537811728e61e948c
SHA1

f1f33eef91e24ae0cfb2badb50e9f2b89d8ef460
SHA256

dbd08bce3f3384d4a0e6dcf6e0ac8d1c7e40b8cdc8a959addeedb0457b2de8c8
SHA512

c4485e71f510efd010c259d16aae8004868deba4b73f7f4457133b809035d8c68cd0a5c9fe70f303d8e081613e10648ff69b7ff5a7121de6f4ee52c8707d6674
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9z9w:0j+soPSMOtEvwDpjwizbR9Xwz9w

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

2024-09-15_bbfc176a5f3ed96537811728e61e948c_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

a0:74:47:42:b2:26:35:af:cc:64:17:02:4c:12:1d:ac:02:9f:3a:f1:5a:ee:39:03:94:f7:1d:05:61:eb:8e:09
Signer

Actual PE Digest

a0:74:47:42:b2:26:35:af:cc:64:17:02:4c:12:1d:ac:02:9f:3a:f1:5a:ee:39:03:94:f7:1d:05:61:eb:8e:09

Digest Algorithm

sha256

PE Digest Matches

false

a0:74:47:42:b2:26:35:af:cc:64:17:02:4c:12:1d:ac:02:9f:3a:f1:5a:ee:39:03:94:f7:1d:05:61:eb:8e:09
Signer

Actual PE Digest

a0:74:47:42:b2:26:35:af:cc:64:17:02:4c:12:1d:ac:02:9f:3a:f1:5a:ee:39:03:94:f7:1d:05:61:eb:8e:09

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

a0:74:47:42:b2:26:35:af:cc:64:17:02:4c:12:1d:ac:02:9f:3a:f1:5a:ee:39:03:94:f7:1d:05:61:eb:8e:09Signer

a0:74:47:42:b2:26:35:af:cc:64:17:02:4c:12:1d:ac:02:9f:3a:f1:5a:ee:39:03:94:f7:1d:05:61:eb:8e:09Signer

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

a0:74:47:42:b2:26:35:af:cc:64:17:02:4c:12:1d:ac:02:9f:3a:f1:5a:ee:39:03:94:f7:1d:05:61:eb:8e:09
Signer

a0:74:47:42:b2:26:35:af:cc:64:17:02:4c:12:1d:ac:02:9f:3a:f1:5a:ee:39:03:94:f7:1d:05:61:eb:8e:09
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