RunDll[.]exe | Triage

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General

Target

RunDll.exe
Size

1.2MB
MD5

4f5c3d69e6b1fe658ea21c6f22c2ee40
SHA1

c045b26eeceb70913e8463ad3f773f402bbddf33
SHA256

a9e7594cce8455a7be8ca97d2c306c67867a326693067a157cc493bd805c4659
SHA512

654a1274e1831b1e72f3dbd2caf7cd78f6725583729a9c155ea90ca628331ef80bbdd831782ea0c401ab50ca5ebe398e1c9e9a2f72b353b1cb27a681fb6fb7bd
SSDEEP

24576:WvcalRcz9F16LOR0wo5hStmay9wqQR0pt9mous0X/TPzQNbmO8yWqPpZo:Wkabcz9FCQx5X4wHbP4a3P

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

RunDll.exe
.exe windows x86

Code Sign

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

22/10/2013, 12:00

Not After

22/10/2028, 12:00

Subject

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

05:de:6c:1e:6d:cb:34:df:98:69:ae:dc:15:7f:07:25
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

25/05/2021, 00:00

Not After

28/05/2024, 23:59

Subject

CN=Chengdu Qilu Technology Co. Ltd.,O=Chengdu Qilu Technology Co. Ltd.,L=成都市,ST=四川省,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12
Certificate

Issuer

CN=VeriSign Universal Root Certification Authority,OU=VeriSign Trust Network+OU=(c) 2008 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

12/01/2016, 00:00

Not After

11/01/2031, 23:59

Subject

CN=Symantec SHA256 TimeStamping CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

7b:d4:e5:af:ba:cc:07:3f:a1:01:23:04:22:41:4d:12
Certificate

Issuer

CN=Symantec SHA256 TimeStamping CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Not Before

23/12/2017, 00:00

Not After

22/03/2029, 23:59

Subject

CN=Symantec SHA256 TimeStamping Signer - G3,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

89:22:d0:c3:ce:99:fd:ea:77:b5:33:80:8e:0c:da:d0:4f:ce:7e:f1:3c:89:7f:26:20:09:f2:f7:1c:fc:7d:f7
Signer

Actual PE Digest

89:22:d0:c3:ce:99:fd:ea:77:b5:33:80:8e:0c:da:d0:4f:ce:7e:f1:3c:89:7f:26:20:09:f2:f7:1c:fc:7d:f7

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

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: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 3KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows x86

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

.text
Size: 1.6MB - Virtual size: 1.6MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 386KB - Virtual size: 385KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 30KB - Virtual size: 50KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 146KB - Virtual size: 146KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08Certificate

Extended Key Usages

Key Usages

05:de:6c:1e:6d:cb:34:df:98:69:ae:dc:15:7f:07:25Certificate

Extended Key Usages

Key Usages

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12Certificate

Extended Key Usages

Key Usages

7b:d4:e5:af:ba:cc:07:3f:a1:01:23:04:22:41:4d:12Certificate

Extended Key Usages

Key Usages

89:22:d0:c3:ce:99:fd:ea:77:b5:33:80:8e:0c:da:d0:4f:ce:7e:f1:3c:89:7f:26:20:09:f2:f7:1c:fc:7d:f7Signer

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 1.1MB

UPX1 Size: 1.2MB - Virtual size: 1.2MB

.rsrc Size: 3KB - Virtual size: 4KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 1.6MB - Virtual size: 1.6MB

.rdata Size: 386KB - Virtual size: 385KB

.data Size: 30KB - Virtual size: 50KB

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 146KB - Virtual size: 146KB

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

05:de:6c:1e:6d:cb:34:df:98:69:ae:dc:15:7f:07:25
Certificate

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12
Certificate

7b:d4:e5:af:ba:cc:07:3f:a1:01:23:04:22:41:4d:12
Certificate

89:22:d0:c3:ce:99:fd:ea:77:b5:33:80:8e:0c:da:d0:4f:ce:7e:f1:3c:89:7f:26:20:09:f2:f7:1c:fc:7d:f7
Signer

UPX0
Size: - Virtual size: 1.1MB

UPX1
Size: 1.2MB - Virtual size: 1.2MB

.rsrc
Size: 3KB - Virtual size: 4KB

.text
Size: 1.6MB - Virtual size: 1.6MB

.rdata
Size: 386KB - Virtual size: 385KB

.data
Size: 30KB - Virtual size: 50KB

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 146KB - Virtual size: 146KB