b76bcf7881f5a857c4fc209abb87b906

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General

Target

b76bcf7881f5a857c4fc209abb87b906
Size

537KB
MD5

b76bcf7881f5a857c4fc209abb87b906
SHA1

d3e8e921b9c2edcf5e816f224ae68185d6b7c625
SHA256

e1f51c029ba4c9c36af2beef433012a576c7e469d1a912e1c4e0c18e34676639
SHA512

a2626e5804d42d49e454a5023f37a7adf949e69659b4843ae567e417f41589456a81e5c60ddeca637d6e9e211e04301906ad9d0da6263679054321521c7d5302
SSDEEP

12288:UkwmrSeHxLzib69z4DiS9sknYTgI5i/Tr6MM04:DCesb0zo7NYTgIIr6MM04

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

b76bcf7881f5a857c4fc209abb87b906
.exe windows:4 windows x86 arch:x86

Code Sign

2b:ca:6b:fd:ab:7e:56:37:ba:8e:7e:9c:64:00:cc:75
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

02/02/2011, 00:00

Not After

02/02/2012, 23:59

Subject

CN=Install Core,O=Install Core,POSTALCODE=62919,STREET=Nisim Aloni 21,L=Tel Aviv,ST=Tel Aviv,C=IL

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

90:a3:be:e5:45:71:16:36:0c:f4:bf:08:c7:56:33:e9:88:67:25:2e
Signer

Actual PE Digest

90:a3:be:e5:45:71:16:36:0c:f4:bf:08:c7:56:33:e9:88:67:25:2e

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_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Sections

UPX0
Size: - Virtual size: 560KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 503KB - Virtual size: 504KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 31KB - Virtual size: 32KB

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_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Sections

CODE
Size: 735KB - Virtual size: 735KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

DATA
Size: 20KB - Virtual size: 19KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

BSS
Size: - Virtual size: 15KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 13KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: - Virtual size: 16B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 512B - Virtual size: 24B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 42KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 209KB - Virtual size: 209KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

2b:ca:6b:fd:ab:7e:56:37:ba:8e:7e:9c:64:00:cc:75Certificate

Extended Key Usages

Key Usages

90:a3:be:e5:45:71:16:36:0c:f4:bf:08:c7:56:33:e9:88:67:25:2eSigner

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 560KB

UPX1 Size: 503KB - Virtual size: 504KB

.rsrc Size: 31KB - Virtual size: 32KB

Headers

File Characteristics

Sections

CODE Size: 735KB - Virtual size: 735KB

DATA Size: 20KB - Virtual size: 19KB

BSS Size: - Virtual size: 15KB

.idata Size: 13KB - Virtual size: 12KB

.tls Size: - Virtual size: 16B

.rdata Size: 512B - Virtual size: 24B

.reloc Size: 42KB - Virtual size: 42KB

.rsrc Size: 209KB - Virtual size: 209KB

2b:ca:6b:fd:ab:7e:56:37:ba:8e:7e:9c:64:00:cc:75
Certificate

90:a3:be:e5:45:71:16:36:0c:f4:bf:08:c7:56:33:e9:88:67:25:2e
Signer

UPX0
Size: - Virtual size: 560KB

UPX1
Size: 503KB - Virtual size: 504KB

.rsrc
Size: 31KB - Virtual size: 32KB

CODE
Size: 735KB - Virtual size: 735KB

DATA
Size: 20KB - Virtual size: 19KB

BSS
Size: - Virtual size: 15KB

.idata
Size: 13KB - Virtual size: 12KB

.tls
Size: - Virtual size: 16B

.rdata
Size: 512B - Virtual size: 24B

.reloc
Size: 42KB - Virtual size: 42KB

.rsrc
Size: 209KB - Virtual size: 209KB