2024-08-26_1a870e652a9c50b7b38e320abfbc381b_cryptolocker

Sharing

Copy URL Twitter E-mail

General

Target

2024-08-26_1a870e652a9c50b7b38e320abfbc381b_cryptolocker
Size

64KB
MD5

1a870e652a9c50b7b38e320abfbc381b
SHA1

1b31c674af125a766b29267ee48f5ea1356b227f
SHA256

97a4d8a719bdde4dffd359de36c63cc0abf41a18dfcc1a1a16aea9f43252eaa5
SHA512

2a498af5a8fa50033478317ed068e79592023fc94daa93b76a19935156faaf570f7b0a6748397a51d8199e36200bd62a8adccca76bff060c5f1372435452feb5
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9z6j:0j+soPSMOtEvwDpjwizbR9Xwze

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

2024-08-26_1a870e652a9c50b7b38e320abfbc381b_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

29:a2:f2:49:23:bd:61:e1:13:1c:18:34:b0:b0:fd:5f:79:b3:bd:64:93:02:d7:9c:10:52:2b:e4:f7:a2:e0:6a
Signer

Actual PE Digest

29:a2:f2:49:23:bd:61:e1:13:1c:18:34:b0:b0:fd:5f:79:b3:bd:64:93:02:d7:9c:10:52:2b:e4:f7:a2:e0:6a

Digest Algorithm

sha256

PE Digest Matches

false

29:a2:f2:49:23:bd:61:e1:13:1c:18:34:b0:b0:fd:5f:79:b3:bd:64:93:02:d7:9c:10:52:2b:e4:f7:a2:e0:6a
Signer

Actual PE Digest

29:a2:f2:49:23:bd:61:e1:13:1c:18:34:b0:b0:fd:5f:79:b3:bd:64:93:02:d7:9c:10:52:2b:e4:f7:a2:e0:6a

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

29:a2:f2:49:23:bd:61:e1:13:1c:18:34:b0:b0:fd:5f:79:b3:bd:64:93:02:d7:9c:10:52:2b:e4:f7:a2:e0:6aSigner

29:a2:f2:49:23:bd:61:e1:13:1c:18:34:b0:b0:fd:5f:79:b3:bd:64:93:02:d7:9c:10:52:2b:e4:f7:a2:e0:6aSigner

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

29:a2:f2:49:23:bd:61:e1:13:1c:18:34:b0:b0:fd:5f:79:b3:bd:64:93:02:d7:9c:10:52:2b:e4:f7:a2:e0:6a
Signer

29:a2:f2:49:23:bd:61:e1:13:1c:18:34:b0:b0:fd:5f:79:b3:bd:64:93:02:d7:9c:10:52:2b:e4:f7:a2:e0:6a
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