OInstall[.]exe

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General

Target

OInstall.exe
Size

10.9MB
MD5

37ccf525ab2dd27d0450b905590a4bbf
SHA1

d5a05b2d8caf58d6c5cf17d7367433ac3edc2fdc
SHA256

54c555cf7ccdb34ce780dda9e2db85cdd2909766f9f0a9ba42538d3acc66736c
SHA512

de236d6a411f6a88e5bd892b08d97b835e4da4408ec0a6cad4f3a99a3594b75fb3f02143880729a83423c366d6f648831d95caaa34a4e70715655bcf89be7cf2
SSDEEP

196608:N3j11aohvCCBuYuZV7Aqe5NiZm9QK7QR8K6PsEh1ppZjknf8AZ1KmtJS7+De2:1DaohPxAF8N8mih3Jun2hKmtJm+DR

Score

5^/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

67:cf:48:42:6d:0e:23:b3:fb:68:2b:8d:14:7d:14:73:79:46:64:6b:3b:80:46:83:8b:5f:29:0a:ea:78:34:8c
Signer

Actual PE Digest

67:cf:48:42:6d:0e:23:b3:fb:68:2b:8d:14:7d:14:73:79:46:64:6b:3b:80:46:83:8b:5f:29:0a:ea:78:34:8c

Digest Algorithm

sha256

PE Digest Matches

true

73:89:07:96:be:4f:8b:2a:e2:95:bd:b7:1e:f4:7b:fd:9a:33:b8:99
Signer

Actual PE Digest

73:89:07:96:be:4f:8b:2a:e2:95:bd:b7:1e:f4:7b:fd:9a:33:b8:99

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 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: 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: 19.9MB - Virtual size: 20.4MB

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

67:cf:48:42:6d:0e:23:b3:fb:68:2b:8d:14:7d:14:73:79:46:64:6b:3b:80:46:83:8b:5f:29:0a:ea:78:34:8cSigner

73:89:07:96:be:4f:8b:2a:e2:95:bd:b7:1e:f4:7b:fd:9a:33:b8:99Signer

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: 19.9MB - Virtual size: 20.4MB

.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

67:cf:48:42:6d:0e:23:b3:fb:68:2b:8d:14:7d:14:73:79:46:64:6b:3b:80:46:83:8b:5f:29:0a:ea:78:34:8c
Signer

73:89:07:96:be:4f:8b:2a:e2:95:bd:b7:1e:f4:7b:fd:9a:33:b8:99
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: 19.9MB - Virtual size: 20.4MB

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

.modplug
Size: - Virtual size: 20KB