2024-06-13_2573c96aa7f4e2c9c946595a2d7f6e75_cryptolocker

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General

Target

2024-06-13_2573c96aa7f4e2c9c946595a2d7f6e75_cryptolocker
Size

43KB
MD5

2573c96aa7f4e2c9c946595a2d7f6e75
SHA1

dac689510ab400e6ace2dca403a0911b021416f4
SHA256

806fbff9de9e676182d0ba708ad0fd3b074ea62d44b09184e44e7ea9a08b4aa5
SHA512

95edb804629a419f98e5ff35bcc598980cc7b506c6ed4b81c213f44c075ae306e867205c1739cb64f13544b6d8c80232bd7161a599d380726ccfae2e304e23f6
SSDEEP

768:bQyC4GyNM01GuQMNXwXOQ69zbjlAAX5e9zD:bQpYayGiAizbR9XwzD

Score

10^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
sample	CryptoLocker_rule2

Files

2024-06-13_2573c96aa7f4e2c9c946595a2d7f6e75_cryptolocker
.exe windows:5 windows x86 arch:x86

ad86a1414a0514f4c041167365378f70

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

f7:13:68:a6:30:b2:5d:c8:18:2d:f6:db:39:1a:e4:3f:d0:ed:8d:a4:ce:85:8a:93:d0:79:9e:ab:71:9a:b3:3c
Signer

Actual PE Digest

f7:13:68:a6:30:b2:5d:c8:18:2d:f6:db:39:1a:e4:3f:d0:ed:8d:a4:ce:85:8a:93:d0:79:9e:ab:71:9a:b3:3c

Digest Algorithm

sha256

PE Digest Matches

false

f7:13:68:a6:30:b2:5d:c8:18:2d:f6:db:39:1a:e4:3f:d0:ed:8d:a4:ce:85:8a:93:d0:79:9e:ab:71:9a:b3:3c
Signer

Actual PE Digest

f7:13:68:a6:30:b2:5d:c8:18:2d:f6:db:39:1a:e4:3f:d0:ed:8d:a4:ce:85:8a:93:d0:79:9e:ab:71:9a:b3:3c

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

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

kernel32

GetLastError
lstrcpyA
GetModuleHandleA
GetCommandLineA
FindFirstFileA
GetCurrentDirectoryA
FindClose
FindNextFileA
DeleteFileA
CloseHandle
CreateFileA

gdi32

CreateFontIndirectA

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 10KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ad86a1414a0514f4c041167365378f70

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

f7:13:68:a6:30:b2:5d:c8:18:2d:f6:db:39:1a:e4:3f:d0:ed:8d:a4:ce:85:8a:93:d0:79:9e:ab:71:9a:b3:3cSigner

f7:13:68:a6:30:b2:5d:c8:18:2d:f6:db:39:1a:e4:3f:d0:ed:8d:a4:ce:85:8a:93:d0:79:9e:ab:71:9a:b3:3cSigner

Headers

File Characteristics

Imports

user32

kernel32

gdi32

Sections

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

.rdata Size: 1KB - Virtual size: 1KB

.data Size: 512B - Virtual size: 1KB

.rsrc Size: 10KB - Virtual size: 9KB

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

f7:13:68:a6:30:b2:5d:c8:18:2d:f6:db:39:1a:e4:3f:d0:ed:8d:a4:ce:85:8a:93:d0:79:9e:ab:71:9a:b3:3c
Signer

f7:13:68:a6:30:b2:5d:c8:18:2d:f6:db:39:1a:e4:3f:d0:ed:8d:a4:ce:85:8a:93:d0:79:9e:ab:71:9a:b3:3c
Signer

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

.rdata
Size: 1KB - Virtual size: 1KB

.data
Size: 512B - Virtual size: 1KB

.rsrc
Size: 10KB - Virtual size: 9KB