inst[.]exe | Triage

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General

Target

inst.exe
Size

1.7MB
MD5

aad8605baccca43dbc3eb9338944d546
SHA1

c5b1be208a19154b8bf8d1d4d0d9e4ab66a09486
SHA256

7953e2ba8611e6323b96df91a87cc162b3d1933e83d745b862c8c6704bb947c9
SHA512

1e59582f095a93e2738e3149b6b2a98cbfb94f68c2c351943aac0db6d0853fa19f3e230c2f66cda13afd247c108a25c1b519e9ebd20e3403a86f94976cc05918
SSDEEP

49152:YpeOY73QFO3GuaHjX5tqwFQnjb+bxfSnjIHWskX:YpeOY7x3GuU6wFGXoidTX

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

inst.exe
.exe windows:5 windows x86 arch:x86

Code Sign

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

Issuer

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

Not Before

01/08/2013, 12:00

Not After

15/01/2038, 12:00

Subject

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

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0f:d1:bb:ca:79:6b:d7:f8:dd:4c:82:e1:0a:9a:96:31
Certificate

Issuer

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

13/01/2022, 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

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

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

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0a:63:a9:47:12:e1:3a:4b:71:99:a0:1b:2c:2f:5c:b5
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

06/05/2022, 00:00

Not After

07/05/2025, 23:59

Subject

SERIALNUMBER=202120309K,CN=ZULER TECHNOLOGY PTE. LTD.,O=ZULER TECHNOLOGY PTE. LTD.,L=SINGAPORE,C=SG,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025347

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

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

95:96:19:e0:11:6a:47:ee:fe:fe:76:f9:8b:19:e1:7f:bc:fd:fe:22:6e:1f:3f:87:f8:5f:5e:54:f1:17:ae:ab
Signer

Actual PE Digest

95:96:19:e0:11:6a:47:ee:fe:fe:76:f9:8b:19:e1:7f:bc:fd:fe:22:6e:1f:3f:87:f8:5f:5e:54:f1:17:ae:ab

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 2.6MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 1.6MB - Virtual size: 1.6MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 120KB - Virtual size: 120KB

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_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

.text
Size: 3.1MB - Virtual size: 3.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 700KB - Virtual size: 700KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 29KB - Virtual size: 41KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 131KB - Virtual size: 131KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 138KB - Virtual size: 138KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5cCertificate

Key Usages

0f:d1:bb:ca:79:6b:d7:f8:dd:4c:82:e1:0a:9a:96:31Certificate

Extended Key Usages

Key Usages

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

0a:63:a9:47:12:e1:3a:4b:71:99:a0:1b:2c:2f:5c:b5Certificate

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

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

95:96:19:e0:11:6a:47:ee:fe:fe:76:f9:8b:19:e1:7f:bc:fd:fe:22:6e:1f:3f:87:f8:5f:5e:54:f1:17:ae:abSigner

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 2.6MB

UPX1 Size: 1.6MB - Virtual size: 1.6MB

.rsrc Size: 120KB - Virtual size: 120KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 3.1MB - Virtual size: 3.1MB

.rdata Size: 700KB - Virtual size: 700KB

.data Size: 29KB - Virtual size: 41KB

.rsrc Size: 131KB - Virtual size: 131KB

.reloc Size: 138KB - Virtual size: 138KB

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

0f:d1:bb:ca:79:6b:d7:f8:dd:4c:82:e1:0a:9a:96:31
Certificate

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

0a:63:a9:47:12:e1:3a:4b:71:99:a0:1b:2c:2f:5c:b5
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

95:96:19:e0:11:6a:47:ee:fe:fe:76:f9:8b:19:e1:7f:bc:fd:fe:22:6e:1f:3f:87:f8:5f:5e:54:f1:17:ae:ab
Signer

UPX0
Size: - Virtual size: 2.6MB

UPX1
Size: 1.6MB - Virtual size: 1.6MB

.rsrc
Size: 120KB - Virtual size: 120KB

.text
Size: 3.1MB - Virtual size: 3.1MB

.rdata
Size: 700KB - Virtual size: 700KB

.data
Size: 29KB - Virtual size: 41KB

.rsrc
Size: 131KB - Virtual size: 131KB

.reloc
Size: 138KB - Virtual size: 138KB