OInstall[.]exe

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General

Target

OInstall.exe
Size

11.0MB
MD5

6608ac3e94555aa017f82964e78e811c
SHA1

d75b9d698e8b09fe700a636426e72c37a2fafff1
SHA256

74d85a07c40b6d6f0ac4bdd9ff81fd7418f499e4dbcaf86ffc18404602aa8974
SHA512

d6e51e7dacfea040804ce8101890fa8ad756c5e112134045ff6dd8c099130a1d587ecf44f33712c19db36b9cf2d589d786c3020b8f31d32d3ad168d75b861b13
SSDEEP

196608:33N6wNyFJIBaZJwEHy61bgUhufRswPU2/V8GT4gv3NysoY5mSu1UcuFVMw:3NhBKU6ZgfPPPuGcgvdyJY57WUfzR

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 arch: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

8c:0c:34:45:e0:d3:b8:90:79:89:ac:de:a9:99:ae:e2:3d:66:35:e1:fb:97:78:0c:c4:2f:c6:94:1a:dc:91:3e
Signer

Actual PE Digest

8c:0c:34:45:e0:d3:b8:90:79:89:ac:de:a9:99:ae:e2:3d:66:35:e1:fb:97:78:0c:c4:2f:c6:94:1a:dc:91:3e

Digest Algorithm

sha256

PE Digest Matches

true

e7:54:16:77:5d:10:e2:ca:dd:d9:b2:42:c3:fb:1a:a8:7d:45:3d:5a
Signer

Actual PE Digest

e7:54:16:77:5d:10:e2:ca:dd:d9:b2:42:c3:fb:1a:a8:7d:45:3d:5a

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: 10.9MB - Virtual size: 10.9MB

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 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_32BIT_MACHINE

Sections

.code
Size: 254KB - Virtual size: 253KB

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: 20.1MB - 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

8c:0c:34:45:e0:d3:b8:90:79:89:ac:de:a9:99:ae:e2:3d:66:35:e1:fb:97:78:0c:c4:2f:c6:94:1a:dc:91:3eSigner

e7:54:16:77:5d:10:e2:ca:dd:d9:b2:42:c3:fb:1a:a8:7d:45:3d:5aSigner

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 10.7MB

UPX1 Size: 10.9MB - Virtual size: 10.9MB

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

Headers

File Characteristics

Sections

.code Size: 254KB - Virtual size: 253KB

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

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

.data Size: 20.1MB - 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

8c:0c:34:45:e0:d3:b8:90:79:89:ac:de:a9:99:ae:e2:3d:66:35:e1:fb:97:78:0c:c4:2f:c6:94:1a:dc:91:3e
Signer

e7:54:16:77:5d:10:e2:ca:dd:d9:b2:42:c3:fb:1a:a8:7d:45:3d:5a
Signer

UPX0
Size: - Virtual size: 10.7MB

UPX1
Size: 10.9MB - Virtual size: 10.9MB

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

.code
Size: 254KB - Virtual size: 253KB

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

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

.data
Size: 20.1MB - Virtual size: 20.5MB

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

.modplug
Size: - Virtual size: 20KB