cleanmaster 3780[.]exe

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General

Target

cleanmaster 3780.exe
Size

642KB
MD5

8e88bed1e8162ef9a6e373fbfcfaf53c
SHA1

a5ce70e309aa3e05bc44758e8eefb6c53ca1c5ae
SHA256

19eed4402a8e24277292f0d03b9600e18d907435682479ffc85475c82f3b42a0
SHA512

81b3bba3c4c5ad8df8ddb13ef82d1e044c09b28178c960daceba4f9cf49a3695e67ae73874a48755a286573b0b37ecc000a97070d71dafdfde1d4ebee94baf82
SSDEEP

12288:43as2NyCU13ZwW//HpK6dK8yUR+NmlCpZr3QAKTZfzYuRh7ts9OO4FemBnzXCvYA:cKyp1OW//HpXKOsNml4rAhVfMexvO4Fa

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

cleanmaster 3780.exe
.exe windows:5 windows x86 arch:x86

Code Sign

7e:93:eb:fb:7c:c6:4e:59:ea:4b:9a:77:d4:06:fc:3b
Certificate

Issuer

CN=Thawte Timestamping CA,OU=Thawte Certification,O=Thawte,L=Durbanville,ST=Western Cape,C=ZA

Not Before

21/12/2012, 00:00

Not After

30/12/2020, 23:59

Subject

CN=Symantec Time Stamping Services CA - G2,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

0e:cf:f4:38:c8:fe:bf:35:6e:04:d8:6a:98:1b:1a:50
Certificate

Issuer

CN=Symantec Time Stamping Services CA - G2,O=Symantec Corporation,C=US

Not Before

18/10/2012, 00:00

Not After

29/12/2020, 23:59

Subject

CN=Symantec Time Stamping Services Signer - G4,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

50:28:4b:e9:ab:1a:22:9c:8f:2c:9f:dd:7b:7e:4a:e4
Certificate

Issuer

CN=VeriSign Class 3 Code Signing 2010 CA,OU=VeriSign Trust Network+OU=Terms of use at https://www.verisign.com/rpa (c)10,O=VeriSign\, Inc.,C=US

Not Before

13/03/2016, 00:00

Not After

26/08/2017, 23:59

Subject

CN=Qingdao Ruanmei Network Technology Co.\,Ltd.,OU=IT,O=Qingdao Ruanmei Network Technology Co.\,Ltd.,L=Qingdao,ST=Shandong,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

52:00:e5:aa:25:56:fc:1a:86:ed:96:c9:d4:4b:33:c7
Certificate

Issuer

CN=VeriSign Class 3 Public Primary Certification Authority - G5,OU=VeriSign Trust Network+OU=(c) 2006 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

08/02/2010, 00:00

Not After

07/02/2020, 23:59

Subject

CN=VeriSign Class 3 Code Signing 2010 CA,OU=VeriSign Trust Network+OU=Terms of use at https://www.verisign.com/rpa (c)10,O=VeriSign\, Inc.,C=US

Extended Key Usages

ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

5a:de:81:b0:3a:cc:dd:91:fa:96:e7:89:18:ad:f6:e7
Certificate

Issuer

CN=Symantec Class 3 SHA256 Code Signing CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Not Before

05/01/2016, 00:00

Not After

23/08/2017, 23:59

Subject

CN=Qingdao Ruanmei Network Technology Co.\,Ltd.,OU=IT,O=Qingdao Ruanmei Network Technology Co.\,Ltd.,L=Qingdao,ST=Shandong,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

3d:78:d7:f9:76:49:60:b2:61:7d:f4:f0:1e:ca:86:2a
Certificate

Issuer

CN=VeriSign Class 3 Public Primary Certification Authority - G5,OU=VeriSign Trust Network+OU=(c) 2006 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

10/12/2013, 00:00

Not After

09/12/2023, 23:59

Subject

CN=Symantec Class 3 SHA256 Code Signing CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

55:45:ca:02:24:61:90:d9:79:ee:b4:0d:b9:ff:bc:18
Certificate

Issuer

CN=Symantec Time Stamping Services CA - G2,O=Symantec Corporation,C=US

Not Before

11/06/2015, 00:00

Not After

29/12/2020, 23:59

Subject

CN=GeoTrust 2048-bit Timestamping Signer 3,O=GeoTrust Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

Certificate

Issuer

CN=Thawte Timestamping CA,OU=Thawte Certification,O=Thawte,L=Durbanville,ST=Western Cape,C=ZA

Not Before

01/01/1997, 00:00

Not After

31/12/2020, 23:59

Subject

CN=Thawte Timestamping CA,OU=Thawte Certification,O=Thawte,L=Durbanville,ST=Western Cape,C=ZA

7e:93:eb:fb:7c:c6:4e:59:ea:4b:9a:77:d4:06:fc:3b
Certificate

Issuer

CN=Thawte Timestamping CA,OU=Thawte Certification,O=Thawte,L=Durbanville,ST=Western Cape,C=ZA

Not Before

21/12/2012, 00:00

Not After

30/12/2020, 23:59

Subject

CN=Symantec Time Stamping Services CA - G2,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

92:82:66:e6:07:0d:cf:1d:56:da:21:48:79:64:c5:cc:67:2f:e4:a8:7b:44:bc:e6:5b:78:83:b9:90:39:1c:9f
Signer

Actual PE Digest

92:82:66:e6:07:0d:cf:1d:56:da:21:48:79:64:c5:cc:67:2f:e4:a8:7b:44:bc:e6:5b:78:83:b9:90:39:1c:9f

Digest Algorithm

sha256

PE Digest Matches

true

9e:09:93:f4:2f:0f:11:dc:14:1f:ef:5a:44:aa:99:d1:7a:1a:d1:7f
Signer

Actual PE Digest

9e:09:93:f4:2f:0f:11:dc:14:1f:ef:5a:44:aa:99:d1:7a:1a:d1:7f

Digest Algorithm

sha1

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 1.1MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 562KB - Virtual size: 564KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 65KB - Virtual size: 68KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows:5 windows x86 arch:x86

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

.text
Size: 1022KB - Virtual size: 1022KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 336KB - Virtual size: 336KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 33KB - Virtual size: 53KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 512B - Virtual size: 424B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 212KB - Virtual size: 211KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 77KB - Virtual size: 76KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

7e:93:eb:fb:7c:c6:4e:59:ea:4b:9a:77:d4:06:fc:3bCertificate

Extended Key Usages

Key Usages

0e:cf:f4:38:c8:fe:bf:35:6e:04:d8:6a:98:1b:1a:50Certificate

Extended Key Usages

Key Usages

50:28:4b:e9:ab:1a:22:9c:8f:2c:9f:dd:7b:7e:4a:e4Certificate

Extended Key Usages

Key Usages

52:00:e5:aa:25:56:fc:1a:86:ed:96:c9:d4:4b:33:c7Certificate

Extended Key Usages

Key Usages

5a:de:81:b0:3a:cc:dd:91:fa:96:e7:89:18:ad:f6:e7Certificate

Extended Key Usages

Key Usages

3d:78:d7:f9:76:49:60:b2:61:7d:f4:f0:1e:ca:86:2aCertificate

Extended Key Usages

Key Usages

55:45:ca:02:24:61:90:d9:79:ee:b4:0d:b9:ff:bc:18Certificate

Extended Key Usages

Key Usages

Certificate

7e:93:eb:fb:7c:c6:4e:59:ea:4b:9a:77:d4:06:fc:3bCertificate

Extended Key Usages

Key Usages

92:82:66:e6:07:0d:cf:1d:56:da:21:48:79:64:c5:cc:67:2f:e4:a8:7b:44:bc:e6:5b:78:83:b9:90:39:1c:9fSigner

9e:09:93:f4:2f:0f:11:dc:14:1f:ef:5a:44:aa:99:d1:7a:1a:d1:7fSigner

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 1.1MB

UPX1 Size: 562KB - Virtual size: 564KB

.rsrc Size: 65KB - Virtual size: 68KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 1022KB - Virtual size: 1022KB

.rdata Size: 336KB - Virtual size: 336KB

.data Size: 33KB - Virtual size: 53KB

.tls Size: 512B - Virtual size: 9B

.gfids Size: 512B - Virtual size: 424B

.rsrc Size: 212KB - Virtual size: 211KB

.reloc Size: 77KB - Virtual size: 76KB

7e:93:eb:fb:7c:c6:4e:59:ea:4b:9a:77:d4:06:fc:3b
Certificate

0e:cf:f4:38:c8:fe:bf:35:6e:04:d8:6a:98:1b:1a:50
Certificate

50:28:4b:e9:ab:1a:22:9c:8f:2c:9f:dd:7b:7e:4a:e4
Certificate

52:00:e5:aa:25:56:fc:1a:86:ed:96:c9:d4:4b:33:c7
Certificate

5a:de:81:b0:3a:cc:dd:91:fa:96:e7:89:18:ad:f6:e7
Certificate

3d:78:d7:f9:76:49:60:b2:61:7d:f4:f0:1e:ca:86:2a
Certificate

55:45:ca:02:24:61:90:d9:79:ee:b4:0d:b9:ff:bc:18
Certificate

7e:93:eb:fb:7c:c6:4e:59:ea:4b:9a:77:d4:06:fc:3b
Certificate

92:82:66:e6:07:0d:cf:1d:56:da:21:48:79:64:c5:cc:67:2f:e4:a8:7b:44:bc:e6:5b:78:83:b9:90:39:1c:9f
Signer

9e:09:93:f4:2f:0f:11:dc:14:1f:ef:5a:44:aa:99:d1:7a:1a:d1:7f
Signer

UPX0
Size: - Virtual size: 1.1MB

UPX1
Size: 562KB - Virtual size: 564KB

.rsrc
Size: 65KB - Virtual size: 68KB

.text
Size: 1022KB - Virtual size: 1022KB

.rdata
Size: 336KB - Virtual size: 336KB

.data
Size: 33KB - Virtual size: 53KB

.tls
Size: 512B - Virtual size: 9B

.gfids
Size: 512B - Virtual size: 424B

.rsrc
Size: 212KB - Virtual size: 211KB

.reloc
Size: 77KB - Virtual size: 76KB