2024-08-26_fac55f707a57cff19c2bcb46e4cd1597_cryptolocker

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General

Target

2024-08-26_fac55f707a57cff19c2bcb46e4cd1597_cryptolocker
Size

64KB
MD5

fac55f707a57cff19c2bcb46e4cd1597
SHA1

6b3538c56081934abb0395a1cc24e10f2b4a0c20
SHA256

95efddb1d2281fb01662385a797a62fdba24c6ddce9b67878ffe99c3552198db
SHA512

a5bf3e5e7837f7c0327805a7da5caeba14aff415edf468d9d45f4abe61a3d7066ce572cb01017ff3166b35952b55950f611c92de921c359c3a19a89f1dc37cd4
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9z8:0j+soPSMOtEvwDpjwizbR9Xwz8

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_fac55f707a57cff19c2bcb46e4cd1597_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

f5:9c:8c:f9:d5:0c:26:cf:da:3b:cd:24:fa:9b:9c:74:24:0b:6b:b1:94:08:48:2a:ee:d8:41:89:cb:2c:28:87
Signer

Actual PE Digest

f5:9c:8c:f9:d5:0c:26:cf:da:3b:cd:24:fa:9b:9c:74:24:0b:6b:b1:94:08:48:2a:ee:d8:41:89:cb:2c:28:87

Digest Algorithm

sha256

PE Digest Matches

false

f5:9c:8c:f9:d5:0c:26:cf:da:3b:cd:24:fa:9b:9c:74:24:0b:6b:b1:94:08:48:2a:ee:d8:41:89:cb:2c:28:87
Signer

Actual PE Digest

f5:9c:8c:f9:d5:0c:26:cf:da:3b:cd:24:fa:9b:9c:74:24:0b:6b:b1:94:08:48:2a:ee:d8:41:89:cb:2c:28:87

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

f5:9c:8c:f9:d5:0c:26:cf:da:3b:cd:24:fa:9b:9c:74:24:0b:6b:b1:94:08:48:2a:ee:d8:41:89:cb:2c:28:87Signer

f5:9c:8c:f9:d5:0c:26:cf:da:3b:cd:24:fa:9b:9c:74:24:0b:6b:b1:94:08:48:2a:ee:d8:41:89:cb:2c:28:87Signer

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

f5:9c:8c:f9:d5:0c:26:cf:da:3b:cd:24:fa:9b:9c:74:24:0b:6b:b1:94:08:48:2a:ee:d8:41:89:cb:2c:28:87
Signer

f5:9c:8c:f9:d5:0c:26:cf:da:3b:cd:24:fa:9b:9c:74:24:0b:6b:b1:94:08:48:2a:ee:d8:41:89:cb:2c:28:87
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