2024-06-06_666db9366efb338490d6837b05cc45cd_cryptolocker

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General

Target

2024-06-06_666db9366efb338490d6837b05cc45cd_cryptolocker
Size

43KB
MD5

666db9366efb338490d6837b05cc45cd
SHA1

8f88d3794ee3a47ecf08d861fab1f20a8b4f76f8
SHA256

6954255eda8435bea35a260f1bf9310ee025c4e3ff8c00064f0a422ddadb7478
SHA512

767c4b6e12f8ebf7fa56bb6fa1ec826fbeb82b05e67b893befb955742e66fc73ee70d339bb5f4f6fe8f3016e69d662cca53db1392e1120edcd3b9ce621f934a0
SSDEEP

768:bQyC4GyNM01GuQMNXwXOQ69zbjlAAX5e9zd:bQpYayGiAizbR9Xwzd

Score

10^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
sample	CryptoLocker_rule2

Files

2024-06-06_666db9366efb338490d6837b05cc45cd_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

b1:fc:ad:f3:c0:85:47:a0:62:d2:91:f6:00:4e:26:f5:0a:b7:39:03:bf:64:e6:00:a3:c2:ef:20:00:a7:c3:96
Signer

Actual PE Digest

b1:fc:ad:f3:c0:85:47:a0:62:d2:91:f6:00:4e:26:f5:0a:b7:39:03:bf:64:e6:00:a3:c2:ef:20:00:a7:c3:96

Digest Algorithm

sha256

PE Digest Matches

false

b1:fc:ad:f3:c0:85:47:a0:62:d2:91:f6:00:4e:26:f5:0a:b7:39:03:bf:64:e6:00:a3:c2:ef:20:00:a7:c3:96
Signer

Actual PE Digest

b1:fc:ad:f3:c0:85:47:a0:62:d2:91:f6:00:4e:26:f5:0a:b7:39:03:bf:64:e6:00:a3:c2:ef:20:00:a7:c3:96

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

b1:fc:ad:f3:c0:85:47:a0:62:d2:91:f6:00:4e:26:f5:0a:b7:39:03:bf:64:e6:00:a3:c2:ef:20:00:a7:c3:96Signer

b1:fc:ad:f3:c0:85:47:a0:62:d2:91:f6:00:4e:26:f5:0a:b7:39:03:bf:64:e6:00:a3:c2:ef:20:00:a7:c3:96Signer

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

b1:fc:ad:f3:c0:85:47:a0:62:d2:91:f6:00:4e:26:f5:0a:b7:39:03:bf:64:e6:00:a3:c2:ef:20:00:a7:c3:96
Signer

b1:fc:ad:f3:c0:85:47:a0:62:d2:91:f6:00:4e:26:f5:0a:b7:39:03:bf:64:e6:00:a3:c2:ef:20:00:a7:c3:96
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