2024-06-10_4f5ee13f7320d61097c52a6925022672_cryptolocker

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General

Target

2024-06-10_4f5ee13f7320d61097c52a6925022672_cryptolocker
Size

45KB
MD5

4f5ee13f7320d61097c52a6925022672
SHA1

416358e8785290e81673b16a402298839ffe8cdf
SHA256

bfbc01875f4ecd35c3f33ffcfdc16294c03d5f8c86971f03d51b82ca511b9a11
SHA512

7c8b32d41db64116d904a0f2161ec5a45e9647de8dd65f7c1ba8b782fd8211c02f6c4d8d0b2c03717903a7068b7caf75a69b33c2ff42d61d69275363c26b3d8e
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zM:bF/y2lFizbR9XwzM

Score

10^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
sample	CryptoLocker_rule2

Files

2024-06-10_4f5ee13f7320d61097c52a6925022672_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

5c:09:e7:85:b5:75:88:ad:3d:f2:d5:1e:43:94:a2:02:87:90:6b:24:08:b3:59:0f:d4:08:90:23:c0:cd:8c:94
Signer

Actual PE Digest

5c:09:e7:85:b5:75:88:ad:3d:f2:d5:1e:43:94:a2:02:87:90:6b:24:08:b3:59:0f:d4:08:90:23:c0:cd:8c:94

Digest Algorithm

sha256

PE Digest Matches

false

5c:09:e7:85:b5:75:88:ad:3d:f2:d5:1e:43:94:a2:02:87:90:6b:24:08:b3:59:0f:d4:08:90:23:c0:cd:8c:94
Signer

Actual PE Digest

5c:09:e7:85:b5:75:88:ad:3d:f2:d5:1e:43:94:a2:02:87:90:6b:24:08:b3:59:0f:d4:08:90:23:c0:cd:8c:94

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

5c:09:e7:85:b5:75:88:ad:3d:f2:d5:1e:43:94:a2:02:87:90:6b:24:08:b3:59:0f:d4:08:90:23:c0:cd:8c:94Signer

5c:09:e7:85:b5:75:88:ad:3d:f2:d5:1e:43:94:a2:02:87:90:6b:24:08:b3:59:0f:d4:08:90:23:c0:cd:8c:94Signer

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

5c:09:e7:85:b5:75:88:ad:3d:f2:d5:1e:43:94:a2:02:87:90:6b:24:08:b3:59:0f:d4:08:90:23:c0:cd:8c:94
Signer

5c:09:e7:85:b5:75:88:ad:3d:f2:d5:1e:43:94:a2:02:87:90:6b:24:08:b3:59:0f:d4:08:90:23:c0:cd:8c:94
Signer

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

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

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