2024-07-04_8979ae51dcb65656b8597de47996d639_cryptolocker

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General

Target

2024-07-04_8979ae51dcb65656b8597de47996d639_cryptolocker
Size

63KB
MD5

8979ae51dcb65656b8597de47996d639
SHA1

d6803bd5df4899456a66d376b11d75b3eb4eeffc
SHA256

de1ffaaeedeb460d9a82bf93f79a20575b5d07ddec7d67690e86349b13d831bb
SHA512

ab6e6f512044c2396ea5afe58822a137c1567b52c8cf8d5c3902f511df13b87e6e75b7b6a852f37da7ea403d6ad9206bb17826353696dedb09e3f15714358064
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zn:0j+soPSMOtEvwDpjwizbR9Xwzn

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
sample	upx

Files

2024-07-04_8979ae51dcb65656b8597de47996d639_cryptolocker
.exe windows:5 windows x86 arch:x86

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

4f:28:01:75:e4:c9:1c:cc:28:85:13:d3:ec:76:c9:02:ef:a2:d2:da:90:5a:42:71:ab:f1:d7:9c:3b:fe:a6:f0
Signer

Actual PE Digest

4f:28:01:75:e4:c9:1c:cc:28:85:13:d3:ec:76:c9:02:ef:a2:d2:da:90:5a:42:71:ab:f1:d7:9c:3b:fe:a6:f0

Digest Algorithm

sha256

PE Digest Matches

false

4f:28:01:75:e4:c9:1c:cc:28:85:13:d3:ec:76:c9:02:ef:a2:d2:da:90:5a:42:71:ab:f1:d7:9c:3b:fe:a6:f0
Signer

Actual PE Digest

4f:28:01:75:e4:c9:1c:cc:28:85:13:d3:ec:76:c9:02:ef:a2:d2:da:90:5a:42:71:ab:f1:d7:9c:3b:fe:a6:f0

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
IMAGE_FILE_DEBUG_STRIPPED

Sections

UPX0
Size: 20KB - Virtual size: 32KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 10KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 11KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.imports
Size: 1024B - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

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

4f:28:01:75:e4:c9:1c:cc:28:85:13:d3:ec:76:c9:02:ef:a2:d2:da:90:5a:42:71:ab:f1:d7:9c:3b:fe:a6:f0Signer

4f:28:01:75:e4:c9:1c:cc:28:85:13:d3:ec:76:c9:02:ef:a2:d2:da:90:5a:42:71:ab:f1:d7:9c:3b:fe:a6:f0Signer

Headers

File Characteristics

Sections

UPX0 Size: 20KB - Virtual size: 32KB

UPX1 Size: 10KB - Virtual size: 12KB

.rsrc Size: 11KB - Virtual size: 12KB

.imports Size: 1024B - Virtual size: 4KB

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

4f:28:01:75:e4:c9:1c:cc:28:85:13:d3:ec:76:c9:02:ef:a2:d2:da:90:5a:42:71:ab:f1:d7:9c:3b:fe:a6:f0
Signer

4f:28:01:75:e4:c9:1c:cc:28:85:13:d3:ec:76:c9:02:ef:a2:d2:da:90:5a:42:71:ab:f1:d7:9c:3b:fe:a6:f0
Signer

UPX0
Size: 20KB - Virtual size: 32KB

UPX1
Size: 10KB - Virtual size: 12KB

.rsrc
Size: 11KB - Virtual size: 12KB

.imports
Size: 1024B - Virtual size: 4KB