grub2win[.]zip

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General

Target

grub2win.zip
Size

1.4MB
MD5

5272bf87e0e804053ce27b53e7bbe0eb
SHA1

17fd805bbb69b4f24cc4d4d873b471b5c34b0ce3
SHA256

c1c928a20827c69afaeea20fbdd23de8c7336859b5c52ebbc285c61c4b0a02e6
SHA512

f2f0aa0d48c6ab6e57c17881db9b666619036e9d0b03d5038bc6cba09c9c63020a8b4374a4e3e48eb0304fc1fb5d48694799363e94fa4e5e90543a59b643f23a
SSDEEP

24576:1wv6Fswm6N124KSneFvq78VNxYo9FQToKhQPZ2438RU0dZTrYeBzVto2K3Q4/fBC:g69LCFZv/ioKhQ4G0dZT8eBzVtCnFgZ

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
static1/unpack001/G2WInstall.exe	upx

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
static1/unpack002/out.upx	autoit_exe

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack002/out.upx

Files

grub2win.zip
.zip
G2WInstall.exe
.exe windows:5 windows x86 arch:x86

Code Sign

01
Certificate

Issuer

CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

01/01/2004, 00:00

Not After

31/12/2028, 23:59

Subject

CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GB

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16
Certificate

Issuer

CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

25/05/2021, 00:00

Not After

31/12/2028, 23:59

Subject

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning

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

62:1d:6d:0c:52:01:9e:3b:90:79:15:20:89:21:1c:0a
Certificate

Issuer

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Not Before

22/03/2021, 00:00

Not After

21/03/2036, 23:59

Subject

CN=Sectigo Public Code Signing CA R36,O=Sectigo Limited,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

90:0f:e0:ca:fb:0c:78:5b:32:d8:33:d4:07:91:5c:b6
Certificate

Issuer

CN=Sectigo Public Code Signing CA R36,O=Sectigo Limited,C=GB

Not Before

29/12/2021, 00:00

Not After

28/12/2024, 23:59

Subject

CN=David Pickens,O=David Pickens,ST=New Jersey,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

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

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

81:49:ca:71:02:79:47:f3:23:e8:3b:b6:f1:89:cf:4c:b3:96:a6:38
Signer

Actual PE Digest

81:49:ca:71:02:79:47:f3:23:e8:3b:b6:f1:89:cf:4c:b3:96:a6:38

Digest Algorithm

sha1

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 1.6MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 371KB - Virtual size: 372KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows:5 windows x86 arch:x86

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Sections

.text
Size: 619KB - Virtual size: 618KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 191KB - Virtual size: 190KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 18KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 29KB - Virtual size: 29KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

01Certificate

Key Usages

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16Certificate

Extended Key Usages

Key Usages

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

Key Usages

62:1d:6d:0c:52:01:9e:3b:90:79:15:20:89:21:1c:0aCertificate

Extended Key Usages

Key Usages

90:0f:e0:ca:fb:0c:78:5b:32:d8:33:d4:07:91:5c:b6Certificate

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

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

Extended Key Usages

Key Usages

81:49:ca:71:02:79:47:f3:23:e8:3b:b6:f1:89:cf:4c:b3:96:a6:38Signer

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 1.6MB

UPX1 Size: 371KB - Virtual size: 372KB

.rsrc Size: 1.1MB - Virtual size: 1.1MB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 619KB - Virtual size: 618KB

.rdata Size: 191KB - Virtual size: 190KB

.data Size: 18KB - Virtual size: 28KB

.rsrc Size: 1.1MB - Virtual size: 1.1MB

.reloc Size: 29KB - Virtual size: 29KB

01
Certificate

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16
Certificate

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

62:1d:6d:0c:52:01:9e:3b:90:79:15:20:89:21:1c:0a
Certificate

90:0f:e0:ca:fb:0c:78:5b:32:d8:33:d4:07:91:5c:b6
Certificate

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

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

81:49:ca:71:02:79:47:f3:23:e8:3b:b6:f1:89:cf:4c:b3:96:a6:38
Signer

UPX0
Size: - Virtual size: 1.6MB

UPX1
Size: 371KB - Virtual size: 372KB

.rsrc
Size: 1.1MB - Virtual size: 1.1MB

.text
Size: 619KB - Virtual size: 618KB

.rdata
Size: 191KB - Virtual size: 190KB

.data
Size: 18KB - Virtual size: 28KB

.rsrc
Size: 1.1MB - Virtual size: 1.1MB

.reloc
Size: 29KB - Virtual size: 29KB