b7yfcy[.]exe | Triage

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General

Target

b7yfcy.exe
Size

14.9MB
MD5

734fcc794ebd38934873568c6efa8655
SHA1

b9f3eae58f07b773f94da5435c25556f5818e7ef
SHA256

184f79b0b16d11216e8ee8e899f8d83800e717f0676d56ef66e0a4b11aeca998
SHA512

154c7fab6b9b3cab6a17f0351d7b3f9f479e571d1236f6d7581380a21aff4d67fc257ccb738bc6ac2155e9926838ace55a08340009c393ef61236ab70301702e
SSDEEP

393216:rhlhSIitEuuYYd0kwyzMfQuPPDYgglPi7OsuLsU3oq:nUtjhYBDYQuHDYGaSq

Score

7^/10

themida

Malware Config

Signatures

Themida packer 1 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
sample	themida

Files

b7yfcy.exe
.exe windows:6 windows x64 arch:x64

Code Sign

29:e1:ab:6e:f5:d0:5c:6e:7a:2f:35:ac:4f:87:68:8d:d5:a7:f3:b1
Certificate

Issuer

CN=wyvern.cx,O=Myron Tymofijovych LP,L=Kyiv,ST=-,C=UA,1.2.840.113549.1.9.1=#0c11636f6e746163744077797665726e2e6378

Not Before

09/04/2024, 17:49

Not After

09/04/2025, 17:49

Subject

CN=wyvern.cx,O=Myron Tymofijovych LP,L=Kyiv,ST=-,C=UA,1.2.840.113549.1.9.1=#0c11636f6e746163744077797665726e2e6378

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

14/07/2023, 00:00

Not After

13/10/2034, 23:59

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

f0:99:70:f0:3c:2d:57:5a:23:72:3b:56:0f:c9:f2:5e:a0:62:f6:eb:a6:0e:d9:28:16:5c:04:65:04:62:36:f2
Signer

Actual PE Digest

f0:99:70:f0:3c:2d:57:5a:23:72:3b:56:0f:c9:f2:5e:a0:62:f6:eb:a6:0e:d9:28:16:5c:04:65:04:62:36:f2

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Sections

Size: 2.8MB - Virtual size: 7.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

Size: 8.3MB - Virtual size: 22.9MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Size: 131KB - Virtual size: 2.9MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Size: 95KB - Virtual size: 252KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Size: 9KB - Virtual size: 99KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.idata
Size: 2KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 1KB - Virtual size: 4KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.themida
Size: - Virtual size: 6.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.boot
Size: 3.5MB - Virtual size: 3.5MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 16B - Virtual size: 4KB

IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

29:e1:ab:6e:f5:d0:5c:6e:7a:2f:35:ac:4f:87:68:8d:d5:a7:f3:b1Certificate

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16Certificate

Extended Key Usages

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

f0:99:70:f0:3c:2d:57:5a:23:72:3b:56:0f:c9:f2:5e:a0:62:f6:eb:a6:0e:d9:28:16:5c:04:65:04:62:36:f2Signer

Headers

DLL Characteristics

File Characteristics

Sections

Size: 2.8MB - Virtual size: 7.2MB

Size: 8.3MB - Virtual size: 22.9MB

Size: 131KB - Virtual size: 2.9MB

Size: 95KB - Virtual size: 252KB

Size: 512B - Virtual size: 500B

Size: 9KB - Virtual size: 99KB

.idata Size: 2KB - Virtual size: 4KB

.tls Size: 1KB - Virtual size: 4KB

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

.themida Size: - Virtual size: 6.2MB

.boot Size: 3.5MB - Virtual size: 3.5MB

.reloc Size: 16B - Virtual size: 4KB

29:e1:ab:6e:f5:d0:5c:6e:7a:2f:35:ac:4f:87:68:8d:d5:a7:f3:b1
Certificate

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

f0:99:70:f0:3c:2d:57:5a:23:72:3b:56:0f:c9:f2:5e:a0:62:f6:eb:a6:0e:d9:28:16:5c:04:65:04:62:36:f2
Signer

.idata
Size: 2KB - Virtual size: 4KB

.tls
Size: 1KB - Virtual size: 4KB

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

.themida
Size: - Virtual size: 6.2MB

.boot
Size: 3.5MB - Virtual size: 3.5MB

.reloc
Size: 16B - Virtual size: 4KB