2024-06-27_1d2b7eb972d86e4f2535bd7db7fa57da_cryptolocker

Sharing

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General

Target

2024-06-27_1d2b7eb972d86e4f2535bd7db7fa57da_cryptolocker
Size

46KB
MD5

1d2b7eb972d86e4f2535bd7db7fa57da
SHA1

0e59758fc8d39e919105a11d4959d95ed30fa028
SHA256

0df2a542e6d9fcd75133d29d32a958254c3bc73eeb64ff35387c9a9d5cf0c33e
SHA512

4c734e5dbc2790a7bba868619a2f16253285f35ef04eaf7a14bda312b6ccedf8c16539ce31ed10c44dc72fb27d23cd8d1204f00ae625a73560e2a7e6484f765b
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zC:bF/y2lFizbR9XwzC

Score

10^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
sample	CryptoLocker_rule2

Files

2024-06-27_1d2b7eb972d86e4f2535bd7db7fa57da_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

ef:30:b4:89:02:f4:73:a4:aa:5d:cb:fd:2d:ad:03:2d:e9:72:f4:6e:84:fd:52:03:f1:5e:69:81:08:ef:e4:3c
Signer

Actual PE Digest

ef:30:b4:89:02:f4:73:a4:aa:5d:cb:fd:2d:ad:03:2d:e9:72:f4:6e:84:fd:52:03:f1:5e:69:81:08:ef:e4:3c

Digest Algorithm

sha256

PE Digest Matches

false

ef:30:b4:89:02:f4:73:a4:aa:5d:cb:fd:2d:ad:03:2d:e9:72:f4:6e:84:fd:52:03:f1:5e:69:81:08:ef:e4:3c
Signer

Actual PE Digest

ef:30:b4:89:02:f4:73:a4:aa:5d:cb:fd:2d:ad:03:2d:e9:72:f4:6e:84:fd:52:03:f1:5e:69:81:08:ef:e4:3c

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

ef:30:b4:89:02:f4:73:a4:aa:5d:cb:fd:2d:ad:03:2d:e9:72:f4:6e:84:fd:52:03:f1:5e:69:81:08:ef:e4:3cSigner

ef:30:b4:89:02:f4:73:a4:aa:5d:cb:fd:2d:ad:03:2d:e9:72:f4:6e:84:fd:52:03:f1:5e:69:81:08:ef:e4:3cSigner

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

ef:30:b4:89:02:f4:73:a4:aa:5d:cb:fd:2d:ad:03:2d:e9:72:f4:6e:84:fd:52:03:f1:5e:69:81:08:ef:e4:3c
Signer

ef:30:b4:89:02:f4:73:a4:aa:5d:cb:fd:2d:ad:03:2d:e9:72:f4:6e:84:fd:52:03:f1:5e:69:81:08:ef:e4:3c
Signer

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

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

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