2024-06-14_544163d2bb022239fdb14e3f7bb0a4bd_cryptolocker

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General

Target

2024-06-14_544163d2bb022239fdb14e3f7bb0a4bd_cryptolocker
Size

45KB
MD5

544163d2bb022239fdb14e3f7bb0a4bd
SHA1

e42ff186097586b032bdf8dba0ca969d1d2bcd1b
SHA256

0ab9d3badda2873b2d6a45cd9f98e2003304002d0969203e865a073c1ae04fb1
SHA512

be65ba4f21809caa8dd5719d76e98d89129f721f67381d21cf63f49bde97946c80120e8c112ae5631542a9803ae79c1f664f7aaf40c700c89d88fe114ebe2d8e
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zQ:bF/y2lFizbR9XwzQ

Score

10^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
sample	CryptoLocker_rule2

Files

2024-06-14_544163d2bb022239fdb14e3f7bb0a4bd_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

06:bd:df:45:6a:8d:b5:e9:53:1d:30:e7:de:73:31:ea:f6:41:9c:4a:5c:fe:78:f2:8c:37:ac:d4:b9:d4:be:86
Signer

Actual PE Digest

06:bd:df:45:6a:8d:b5:e9:53:1d:30:e7:de:73:31:ea:f6:41:9c:4a:5c:fe:78:f2:8c:37:ac:d4:b9:d4:be:86

Digest Algorithm

sha256

PE Digest Matches

false

06:bd:df:45:6a:8d:b5:e9:53:1d:30:e7:de:73:31:ea:f6:41:9c:4a:5c:fe:78:f2:8c:37:ac:d4:b9:d4:be:86
Signer

Actual PE Digest

06:bd:df:45:6a:8d:b5:e9:53:1d:30:e7:de:73:31:ea:f6:41:9c:4a:5c:fe:78:f2:8c:37:ac:d4:b9:d4:be:86

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

06:bd:df:45:6a:8d:b5:e9:53:1d:30:e7:de:73:31:ea:f6:41:9c:4a:5c:fe:78:f2:8c:37:ac:d4:b9:d4:be:86Signer

06:bd:df:45:6a:8d:b5:e9:53:1d:30:e7:de:73:31:ea:f6:41:9c:4a:5c:fe:78:f2:8c:37:ac:d4:b9:d4:be:86Signer

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

06:bd:df:45:6a:8d:b5:e9:53:1d:30:e7:de:73:31:ea:f6:41:9c:4a:5c:fe:78:f2:8c:37:ac:d4:b9:d4:be:86
Signer

06:bd:df:45:6a:8d:b5:e9:53:1d:30:e7:de:73:31:ea:f6:41:9c:4a:5c:fe:78:f2:8c:37:ac:d4:b9:d4:be:86
Signer

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

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

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