2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker

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General

Target

2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker
Size

45KB
MD5

18e76735eb2846527c0984a4a5f4152d
SHA1

05b354da68d841f6130d258c8d0428d6ed6aa23b
SHA256

5c1e654e451906fff72a2445100838a82b8141239b89a2052193867df253d5bb
SHA512

a0b9f1726a4957af8e9eb0bb653d99c8638a81704860f710a6e7f34ddc3a8d4fe5ef5554abf51da0bfb521ca2b3184feb17b4c278fcde26d5a8cd8a9aea53180
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zI:bF/y2lFizbR9XwzI

Score

10^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
sample	CryptoLocker_rule2

Files

2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker
.exe windows:5 windows x86 arch:x86

78f4abb8610ca1c22ad9f81ecfabcc3c

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

25:da:aa:a4:b5:93:35:47:4f:ce:4e:41:8b:a5:f8:01:35:f8:81:15:db:80:86:e4:45:23:2c:d3:b6:42:d9:3c
Signer

Actual PE Digest

25:da:aa:a4:b5:93:35:47:4f:ce:4e:41:8b:a5:f8:01:35:f8:81:15:db:80:86:e4:45:23:2c:d3:b6:42:d9:3c

Digest Algorithm

sha256

PE Digest Matches

false

25:da:aa:a4:b5:93:35:47:4f:ce:4e:41:8b:a5:f8:01:35:f8:81:15:db:80:86:e4:45:23:2c:d3:b6:42:d9:3c
Signer

Actual PE Digest

25:da:aa:a4:b5:93:35:47:4f:ce:4e:41:8b:a5:f8:01:35:f8:81:15:db:80:86:e4:45:23:2c:d3:b6:42:d9:3c

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

Imports

user32

TranslateMessage
BeginPaint
DispatchMessageA
DrawTextA
CreateWindowExA
GetMessageA
PostQuitMessage
ShowWindow
UpdateWindow
RegisterClassExA
DefWindowProcA
MessageBoxA
SendMessageA
DestroyWindow
LoadIconA
LoadCursorA
SetWindowPos
GetWindowRect
EndPaint
DialogBoxParamA

kernel32

GetLastError
lstrcpyA
GetModuleHandleA
GetCommandLineA
GetCurrentDirectoryA
CloseHandle
GetCurrentProcess
CreateFileA

gdi32

CreateFontIndirectA

Sections

.text
Size: 11KB - Virtual size: 10KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 10KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

78f4abb8610ca1c22ad9f81ecfabcc3c

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

25:da:aa:a4:b5:93:35:47:4f:ce:4e:41:8b:a5:f8:01:35:f8:81:15:db:80:86:e4:45:23:2c:d3:b6:42:d9:3cSigner

25:da:aa:a4:b5:93:35:47:4f:ce:4e:41:8b:a5:f8:01:35:f8:81:15:db:80:86:e4:45:23:2c:d3:b6:42:d9:3cSigner

Headers

File Characteristics

Imports

user32

kernel32

gdi32

Sections

.text Size: 11KB - Virtual size: 10KB

.data Size: 3KB - Virtual size: 3KB

.rsrc Size: 10KB - Virtual size: 10KB

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

25:da:aa:a4:b5:93:35:47:4f:ce:4e:41:8b:a5:f8:01:35:f8:81:15:db:80:86:e4:45:23:2c:d3:b6:42:d9:3c
Signer

25:da:aa:a4:b5:93:35:47:4f:ce:4e:41:8b:a5:f8:01:35:f8:81:15:db:80:86:e4:45:23:2c:d3:b6:42:d9:3c
Signer

.text
Size: 11KB - Virtual size: 10KB

.data
Size: 3KB - Virtual size: 3KB

.rsrc
Size: 10KB - Virtual size: 10KB