gsam-en-install[.]exe

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General

Target

gsam-en-install.exe
Size

884KB
MD5

d4bc14d79adb65d8a03c1043f0c2ff07
SHA1

d454154fe8241eecf2a53f658aaeed805d25fecc
SHA256

de3e7309a038212864c3f1d717e29cbc3528390f1a8a99b5aee924f1fddc2508
SHA512

71f04ad3d96e5d83839cb9effb71ac826cb9ea6e4701c0e744b7d9f80fe029669f8ce06b6080e0c97a94abe1be44f81b09dbd0b57758cd11249ab1e39fc30a29
SSDEEP

24576:n9HmIVL1Tvp/MdafdwXCK0W8R/XJe0oYbdVRcTjCPJrIklTG0Z:RmIVXCafdjJDM0oYbTRejCxrIklTG0Z

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

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/out.upx

Files

gsam-en-install.exe
.exe windows:5 windows x86 arch:x86

Code Sign

02:bc:41:3e:2b:79:be:5a:ca:8f:f0:30:02:d4:17:ea
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

20-02-2021 00:00

Not After

23-02-2023 23:59

Subject

CN=GridinSoft\, LLC,O=GridinSoft\, LLC,L=Kyiv,C=UA

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

Issuer

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

Not Before

22-10-2013 12:00

Not After

22-10-2028 12:00

Subject

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

01:24:0a:fb:1e:38:0b:8a:16:f1:4b:71:9d:f4:d3:c0
Certificate

Issuer

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

Not Before

09-06-2022 00:00

Not After

09-11-2031 23:59

Subject

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

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

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

0a:7a:4a:88:9e:c9:99:42:90:06:63:38:4d:86:97:9d
Certificate

Issuer

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

Not Before

29-03-2022 00:00

Not After

14-03-2033 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

02:bc:41:3e:2b:79:be:5a:ca:8f:f0:30:02:d4:17:ea
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

20-02-2021 00:00

Not After

23-02-2023 23:59

Subject

CN=GridinSoft\, LLC,O=GridinSoft\, LLC,L=Kyiv,C=UA

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

Issuer

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

Not Before

22-10-2013 12:00

Not After

22-10-2028 12:00

Subject

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0a:7a:4a:88:9e:c9:99:42:90:06:63:38:4d:86:97:9d
Certificate

Issuer

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

Not Before

29-03-2022 00:00

Not After

14-03-2033 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,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

01:24:0a:fb:1e:38:0b:8a:16:f1:4b:71:9d:f4:d3:c0
Certificate

Issuer

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

Not Before

09-06-2022 00:00

Not After

09-11-2031 23:59

Subject

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

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

95:04:57:64:86:b3:54:2e:9d:38:eb:45:db:4d:db:4d:5e:4f:72:71:d5:a6:1f:a6:60:c9:1c:77:5f:b6:5e:35
Signer

Actual PE Digest

95:04:57:64:86:b3:54:2e:9d:38:eb:45:db:4d:db:4d:5e:4f:72:71:d5:a6:1f:a6:60:c9:1c:77:5f:b6:5e:35

Digest Algorithm

sha256

PE Digest Matches

true

73:7b:75:54:20:14:c7:b0:1b:16:7a:7c:28:4f:d7:97:61:0c:31:dd
Signer

Actual PE Digest

73:7b:75:54:20:14:c7:b0:1b:16:7a:7c:28:4f:d7:97:61:0c:31:dd

Digest Algorithm

sha1

PE Digest Matches

true

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Sections

UPX0
Size: - Virtual size: 1.5MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 809KB - Virtual size: 812KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 56KB - Virtual size: 60KB

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

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Exports

Exports

TMethodImplementationIntercept
__dbk_fcall_wrapper
dbkFCallWrapperAddr

Sections

.text
Size: 1.9MB - Virtual size: 1.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.itext
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 36KB - Virtual size: 36KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 28KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.didata
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.edata
Size: 512B - Virtual size: 166B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: - Virtual size: 80B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 512B - Virtual size: 93B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 264KB - Virtual size: 264KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

02:bc:41:3e:2b:79:be:5a:ca:8f:f0:30:02:d4:17:eaCertificate

Extended Key Usages

Key Usages

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08Certificate

Extended Key Usages

Key Usages

01:24:0a:fb:1e:38:0b:8a:16:f1:4b:71:9d:f4:d3:c0Certificate

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

0a:7a:4a:88:9e:c9:99:42:90:06:63:38:4d:86:97:9dCertificate

Extended Key Usages

Key Usages

02:bc:41:3e:2b:79:be:5a:ca:8f:f0:30:02:d4:17:eaCertificate

Extended Key Usages

Key Usages

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08Certificate

Extended Key Usages

Key Usages

0a:7a:4a:88:9e:c9:99:42:90:06:63:38:4d:86:97:9dCertificate

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

01:24:0a:fb:1e:38:0b:8a:16:f1:4b:71:9d:f4:d3:c0Certificate

Extended Key Usages

Key Usages

95:04:57:64:86:b3:54:2e:9d:38:eb:45:db:4d:db:4d:5e:4f:72:71:d5:a6:1f:a6:60:c9:1c:77:5f:b6:5e:35Signer

73:7b:75:54:20:14:c7:b0:1b:16:7a:7c:28:4f:d7:97:61:0c:31:ddSigner

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 1.5MB

UPX1 Size: 809KB - Virtual size: 812KB

.rsrc Size: 56KB - Virtual size: 60KB

Headers

File Characteristics

Exports

Exports

Sections

.text Size: 1.9MB - Virtual size: 1.9MB

.itext Size: 7KB - Virtual size: 6KB

.data Size: 36KB - Virtual size: 36KB

.bss Size: - Virtual size: 28KB

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

.didata Size: 3KB - Virtual size: 2KB

.edata Size: 512B - Virtual size: 166B

.tls Size: - Virtual size: 80B

.rdata Size: 512B - Virtual size: 93B

.rsrc Size: 264KB - Virtual size: 264KB

02:bc:41:3e:2b:79:be:5a:ca:8f:f0:30:02:d4:17:ea
Certificate

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

01:24:0a:fb:1e:38:0b:8a:16:f1:4b:71:9d:f4:d3:c0
Certificate

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

0a:7a:4a:88:9e:c9:99:42:90:06:63:38:4d:86:97:9d
Certificate

02:bc:41:3e:2b:79:be:5a:ca:8f:f0:30:02:d4:17:ea
Certificate

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

0a:7a:4a:88:9e:c9:99:42:90:06:63:38:4d:86:97:9d
Certificate

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

01:24:0a:fb:1e:38:0b:8a:16:f1:4b:71:9d:f4:d3:c0
Certificate

95:04:57:64:86:b3:54:2e:9d:38:eb:45:db:4d:db:4d:5e:4f:72:71:d5:a6:1f:a6:60:c9:1c:77:5f:b6:5e:35
Signer

73:7b:75:54:20:14:c7:b0:1b:16:7a:7c:28:4f:d7:97:61:0c:31:dd
Signer

UPX0
Size: - Virtual size: 1.5MB

UPX1
Size: 809KB - Virtual size: 812KB

.rsrc
Size: 56KB - Virtual size: 60KB

.text
Size: 1.9MB - Virtual size: 1.9MB

.itext
Size: 7KB - Virtual size: 6KB

.data
Size: 36KB - Virtual size: 36KB

.bss
Size: - Virtual size: 28KB

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

.didata
Size: 3KB - Virtual size: 2KB

.edata
Size: 512B - Virtual size: 166B

.tls
Size: - Virtual size: 80B

.rdata
Size: 512B - Virtual size: 93B

.rsrc
Size: 264KB - Virtual size: 264KB