4fbbd7f8cce300cb96390c8f6eb37e8b

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General

Target

4fbbd7f8cce300cb96390c8f6eb37e8b
Size

545KB
MD5

4fbbd7f8cce300cb96390c8f6eb37e8b
SHA1

26ed132a8dacdd68b487aaf2eb49b7218e921570
SHA256

a04989057c24a1b7ddf10aef4a63a19b73d2f685209bd7968b0979757cc3c832
SHA512

60b3eb2fc3703c62cca91b048dd25191a438bd02248c6a162c154ca4a373c64009218ae274d21a4c011c8c5283474fe0ccac9a14b7a316b6a12a28f32064f989
SSDEEP

12288:JiHG2nxO/zUD9kuq8F7dyZ0qCU91k931SJy+83/pMMov:JnkfxkujzyZ0891k93EI+4hMMov

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

4fbbd7f8cce300cb96390c8f6eb37e8b
.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

61:d5:d6:48:63:a5:0c:8b:27:19:e7:56:1a:e8:59:1e:07:4b:dd:d2
Signer

Actual PE Digest

61:d5:d6:48:63:a5:0c:8b:27:19:e7:56:1a:e8:59:1e:07:4b:dd:d2

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: 576KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 513KB - Virtual size: 516KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 28KB - 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: 754KB - Virtual size: 753KB

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: 43KB - Virtual size: 43KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 218KB - Virtual size: 218KB

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

61:d5:d6:48:63:a5:0c:8b:27:19:e7:56:1a:e8:59:1e:07:4b:dd:d2Signer

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 576KB

UPX1 Size: 513KB - Virtual size: 516KB

.rsrc Size: 28KB - Virtual size: 32KB

Headers

File Characteristics

Sections

CODE Size: 754KB - Virtual size: 753KB

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: 43KB - Virtual size: 43KB

.rsrc Size: 218KB - Virtual size: 218KB

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

61:d5:d6:48:63:a5:0c:8b:27:19:e7:56:1a:e8:59:1e:07:4b:dd:d2
Signer

UPX0
Size: - Virtual size: 576KB

UPX1
Size: 513KB - Virtual size: 516KB

.rsrc
Size: 28KB - Virtual size: 32KB

CODE
Size: 754KB - Virtual size: 753KB

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: 43KB - Virtual size: 43KB

.rsrc
Size: 218KB - Virtual size: 218KB