OInstall[.]exe

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General

Target

OInstall.exe
Size

14.6MB
MD5

4c746e46fb3ced72a49290baf9f115f4
SHA1

3cbb5c1380496b121289ea6e14d5007d71e7e3e7
SHA256

1c7d1f5635d70f870fa2686743e759c8446c5e46fa2ea1250494f505845baa1d
SHA512

0482cb95c79179a9665ead17bdb1111badb02ee9d7524ebbfa810008fe7661da7cee553be97f0034b7fb4e9f66ecdd3568cbed873b67914545440635fe608080
SSDEEP

393216:T4sLMkgDxJBnLZ3xJZwmxjxhC59j5/sZDPXn1Syset+uh:ks72/t3xJ5rC5ecS

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

OInstall.exe
.exe windows x86

Code Sign

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9e
Certificate

Issuer

CN=WZTeam

Not Before

02-11-2016 18:47

Not After

31-12-2039 23:59

Subject

CN=WZTeam

Extended Key Usages

ExtKeyUsageCodeSigning

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Not Before

02-05-2019 00:00

Not After

18-01-2038 23:59

Subject

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

Issuer

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

11-05-2022 00:00

Not After

10-08-2033 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #3,O=Sectigo Limited,ST=Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9e
Certificate

Issuer

CN=WZTeam

Not Before

02-11-2016 18:47

Not After

31-12-2039 23:59

Subject

CN=WZTeam

Extended Key Usages

ExtKeyUsageCodeSigning

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

Issuer

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

11-05-2022 00:00

Not After

10-08-2033 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #3,O=Sectigo Limited,ST=Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Not Before

02-05-2019 00:00

Not After

18-01-2038 23:59

Subject

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

19:4c:09:a1:61:55:73:af:eb:77:e9:43:a5:a9:e9:21:a8:ec:d5:22:5f:44:33:7d:b2:e1:55:49:00:38:15:73
Signer

Actual PE Digest

19:4c:09:a1:61:55:73:af:eb:77:e9:43:a5:a9:e9:21:a8:ec:d5:22:5f:44:33:7d:b2:e1:55:49:00:38:15:73

Digest Algorithm

sha256

PE Digest Matches

true

4f:46:e9:29:4f:60:a7:43:97:b8:96:76:17:9c:26:6d:82:d9:79:38
Signer

Actual PE Digest

4f:46:e9:29:4f:60:a7:43:97:b8:96:76:17:9c:26:6d:82:d9:79:38

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_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 15.2MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 14.5MB - Virtual size: 14.5MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 84KB - Virtual size: 88KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows x86

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

Sections

.code
Size: 297KB - Virtual size: 297KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 598KB - Virtual size: 598KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 28.1MB - Virtual size: 28.5MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 83KB - Virtual size: 82KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.modplug
Size: - Virtual size: 20KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

Code Sign

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9eCertificate

Extended Key Usages

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9Certificate

Extended Key Usages

Key Usages

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43Certificate

Extended Key Usages

Key Usages

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9eCertificate

Extended Key Usages

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43Certificate

Extended Key Usages

Key Usages

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9Certificate

Extended Key Usages

Key Usages

19:4c:09:a1:61:55:73:af:eb:77:e9:43:a5:a9:e9:21:a8:ec:d5:22:5f:44:33:7d:b2:e1:55:49:00:38:15:73Signer

4f:46:e9:29:4f:60:a7:43:97:b8:96:76:17:9c:26:6d:82:d9:79:38Signer

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 15.2MB

UPX1 Size: 14.5MB - Virtual size: 14.5MB

.rsrc Size: 84KB - Virtual size: 88KB

Headers

File Characteristics

Sections

.code Size: 297KB - Virtual size: 297KB

.text Size: 598KB - Virtual size: 598KB

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

.data Size: 28.1MB - Virtual size: 28.5MB

.rsrc Size: 83KB - Virtual size: 82KB

.modplug Size: - Virtual size: 20KB

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9e
Certificate

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9e
Certificate

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

19:4c:09:a1:61:55:73:af:eb:77:e9:43:a5:a9:e9:21:a8:ec:d5:22:5f:44:33:7d:b2:e1:55:49:00:38:15:73
Signer

4f:46:e9:29:4f:60:a7:43:97:b8:96:76:17:9c:26:6d:82:d9:79:38
Signer

UPX0
Size: - Virtual size: 15.2MB

UPX1
Size: 14.5MB - Virtual size: 14.5MB

.rsrc
Size: 84KB - Virtual size: 88KB

.code
Size: 297KB - Virtual size: 297KB

.text
Size: 598KB - Virtual size: 598KB

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

.data
Size: 28.1MB - Virtual size: 28.5MB

.rsrc
Size: 83KB - Virtual size: 82KB

.modplug
Size: - Virtual size: 20KB