OInstall[.]exe

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General

Target

OInstall.exe
Size

9.2MB
MD5

b99fac79315b274f536a73e57dd10649
SHA1

5b479138d2d7cf8eaea1713d5e1b06758a8808e5
SHA256

623344aa7c04d12756d890223df826d6d7637fae951407c29692ca40f6857b20
SHA512

1de732f86fee4a3e8618f790b8402adcdbebe9e8d0bb207ce8aa223e77b59f873edd2f53fdda37ffa2a7667c82b5c67f86bed5d1435c089f762e2d1fcd75b7fe
SSDEEP

196608:/VrCEhhtHnNQoeXEXpTaCDnp2OU/vp0BWjmJJnwEYrbZu59mmrS3xUMxUgd3PJMu:9+YttbeXep2CDp2x/vqJnMZu59pr4OgT

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

16:88:f0:39:25:5e:63:8e:69:14:39:07:e6:33:0b
Certificate

Issuer

CN=UTN-USERFirst-Object,OU=http://www.usertrust.com,O=The USERTRUST Network,L=Salt Lake City,ST=UT,C=US

Not Before

31/12/2015, 00:00

Not After

09/07/2019, 18:40

Subject

CN=COMODO SHA-1 Time Stamping Signer,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

1a:05:da:b8:f0:7a:e8:40:be:ad:78:fe:b2:55:a8:74
Certificate

Issuer

CN=WZTeam

Not Before

10/03/2017, 18:02

Not After

31/12/2039, 23:59

Subject

CN=WZTeam

4e:b0:87:8f:cc:24:35:36:b2:d8:c9:f7:bf:39:55:77
Certificate

Issuer

CN=UTN-USERFirst-Object,OU=http://www.usertrust.com,O=The USERTRUST Network,L=Salt Lake City,ST=UT,C=US

Not Before

31/12/2015, 00:00

Not After

09/07/2019, 18:40

Subject

CN=COMODO SHA-256 Time Stamping Signer,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

e4:4e:07:5c:6a:2d:5e:9b:de:10:f7:74:f2:b1:ef:7f:b4:d1:58:c9:48:b2:34:9b:a0:7c:d8:78:f0:d6:8c:e3
Signer

Actual PE Digest

e4:4e:07:5c:6a:2d:5e:9b:de:10:f7:74:f2:b1:ef:7f:b4:d1:58:c9:48:b2:34:9b:a0:7c:d8:78:f0:d6:8c:e3

Digest Algorithm

sha256

PE Digest Matches

true

33:30:51:7c:a3:9d:84:4f:bc:73:63:8a:b1:47:5d:42:10:c1:6b:60
Signer

Actual PE Digest

33:30:51:7c:a3:9d:84:4f:bc:73:63:8a:b1:47:5d:42:10:c1:6b:60

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: 8.1MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 9.1MB - Virtual size: 9.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

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: 184KB - Virtual size: 183KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 739KB - Virtual size: 739KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 140KB - Virtual size: 140KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 15.6MB - Virtual size: 16.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 82KB - 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

16:88:f0:39:25:5e:63:8e:69:14:39:07:e6:33:0bCertificate

Extended Key Usages

Key Usages

1a:05:da:b8:f0:7a:e8:40:be:ad:78:fe:b2:55:a8:74Certificate

4e:b0:87:8f:cc:24:35:36:b2:d8:c9:f7:bf:39:55:77Certificate

Extended Key Usages

Key Usages

e4:4e:07:5c:6a:2d:5e:9b:de:10:f7:74:f2:b1:ef:7f:b4:d1:58:c9:48:b2:34:9b:a0:7c:d8:78:f0:d6:8c:e3Signer

33:30:51:7c:a3:9d:84:4f:bc:73:63:8a:b1:47:5d:42:10:c1:6b:60Signer

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 8.1MB

UPX1 Size: 9.1MB - Virtual size: 9.1MB

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

Headers

File Characteristics

Sections

.code Size: 184KB - Virtual size: 183KB

.text Size: 739KB - Virtual size: 739KB

.rdata Size: 140KB - Virtual size: 140KB

.data Size: 15.6MB - Virtual size: 16.1MB

.rsrc Size: 82KB - 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

16:88:f0:39:25:5e:63:8e:69:14:39:07:e6:33:0b
Certificate

1a:05:da:b8:f0:7a:e8:40:be:ad:78:fe:b2:55:a8:74
Certificate

4e:b0:87:8f:cc:24:35:36:b2:d8:c9:f7:bf:39:55:77
Certificate

e4:4e:07:5c:6a:2d:5e:9b:de:10:f7:74:f2:b1:ef:7f:b4:d1:58:c9:48:b2:34:9b:a0:7c:d8:78:f0:d6:8c:e3
Signer

33:30:51:7c:a3:9d:84:4f:bc:73:63:8a:b1:47:5d:42:10:c1:6b:60
Signer

UPX0
Size: - Virtual size: 8.1MB

UPX1
Size: 9.1MB - Virtual size: 9.1MB

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

.code
Size: 184KB - Virtual size: 183KB

.text
Size: 739KB - Virtual size: 739KB

.rdata
Size: 140KB - Virtual size: 140KB

.data
Size: 15.6MB - Virtual size: 16.1MB

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

.modplug
Size: - Virtual size: 20KB