OInstall[.]exe

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General

Target

OInstall.exe
Size

10.9MB
MD5

ebc58647462ad9c76395ef451064d115
SHA1

14e470812f13b278b2694a4cec5737a39784e9dd
SHA256

414155bf11893ec64ba0f4ffb7de92885090845a0761cf8f6743462aa5991d5e
SHA512

8a9ef093d151957ae3c4c8e572fcdbd2198398c95ff8186d532853856c12c8f9ae7408c4f24518c5903faa517ea4e1d5779e797c5a4d850073fbee3ab801e8cc
SSDEEP

196608:2ZnMGjZsDEsCaYsGEHy61bgUhufRswPU2/V8Gd83/PALDP0PiaQxhwf+9zYul28S:WnjZhsCOU6ZgfPPPuGdnv0fzfoDYtB

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:4 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

8c:77:a0:00:8f:f4:d1:b0:c6:3d:9f:3a:48:83:8d:6b
Certificate

Issuer

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

Not Before

23-10-2020 00:00

Not After

22-01-2032 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #2,O=Sectigo Limited,L=Salford,ST=Greater 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

8c:77:a0:00:8f:f4:d1:b0:c6:3d:9f:3a:48:83:8d:6b
Certificate

Issuer

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

Not Before

23-10-2020 00:00

Not After

22-01-2032 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #2,O=Sectigo Limited,L=Salford,ST=Greater 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

1a:f3:7b:66:8c:05:ac:49:bf:8c:62:e6:31:77:54:be:14:99:6f:fd:5e:8a:91:81:15:81:7f:04:65:53:2c:56
Signer

Actual PE Digest

1a:f3:7b:66:8c:05:ac:49:bf:8c:62:e6:31:77:54:be:14:99:6f:fd:5e:8a:91:81:15:81:7f:04:65:53:2c:56

Digest Algorithm

sha256

PE Digest Matches

true

4d:97:b1:3e:ae:92:f0:4f:61:2d:e1:7a:d2:09:2f:95:02:f3:4e:47
Signer

Actual PE Digest

4d:97:b1:3e:ae:92:f0:4f:61:2d:e1:7a:d2:09:2f:95:02:f3:4e:47

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: 10.7MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 10.8MB - Virtual size: 10.8MB

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:4 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: 252KB - Virtual size: 251KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 584KB - Virtual size: 583KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 128KB - Virtual size: 128KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20.0MB - Virtual size: 20.5MB

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

8c:77:a0:00:8f:f4:d1:b0:c6:3d:9f:3a:48:83:8d:6bCertificate

Extended Key Usages

Key Usages

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

Extended Key Usages

8c:77:a0:00:8f:f4:d1:b0:c6:3d:9f:3a:48:83:8d:6bCertificate

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

1a:f3:7b:66:8c:05:ac:49:bf:8c:62:e6:31:77:54:be:14:99:6f:fd:5e:8a:91:81:15:81:7f:04:65:53:2c:56Signer

4d:97:b1:3e:ae:92:f0:4f:61:2d:e1:7a:d2:09:2f:95:02:f3:4e:47Signer

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 10.7MB

UPX1 Size: 10.8MB - Virtual size: 10.8MB

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

Headers

File Characteristics

Sections

.code Size: 252KB - Virtual size: 251KB

.text Size: 584KB - Virtual size: 583KB

.rdata Size: 128KB - Virtual size: 128KB

.data Size: 20.0MB - Virtual size: 20.5MB

.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

8c:77:a0:00:8f:f4:d1:b0:c6:3d:9f:3a:48:83:8d:6b
Certificate

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

8c:77:a0:00:8f:f4:d1:b0:c6:3d:9f:3a:48:83:8d:6b
Certificate

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

1a:f3:7b:66:8c:05:ac:49:bf:8c:62:e6:31:77:54:be:14:99:6f:fd:5e:8a:91:81:15:81:7f:04:65:53:2c:56
Signer

4d:97:b1:3e:ae:92:f0:4f:61:2d:e1:7a:d2:09:2f:95:02:f3:4e:47
Signer

UPX0
Size: - Virtual size: 10.7MB

UPX1
Size: 10.8MB - Virtual size: 10.8MB

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

.code
Size: 252KB - Virtual size: 251KB

.text
Size: 584KB - Virtual size: 583KB

.rdata
Size: 128KB - Virtual size: 128KB

.data
Size: 20.0MB - Virtual size: 20.5MB

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

.modplug
Size: - Virtual size: 20KB