81dc4ca3a4d222487e15de43df6392b1[.]bin

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General

Target

81dc4ca3a4d222487e15de43df6392b1.bin
Size

217KB
MD5

81dc4ca3a4d222487e15de43df6392b1
SHA1

e31af7ffcf257492555d0aebf0e3eb42b492db1a
SHA256

a6285fe42224e3b5e01618cc2525cb22e5c3dbd1b42669af457873a2144631ad
SHA512

cde90f7f7691fa9b556be7b68b6375c83eb06021c4e3ef3bf8c887d68298e714838cd566d4f694c71ccb52b72995cc04b666ccea57bbb671fac664840f20d17d
SSDEEP

6144:MkS5h9zKBydEKvqlL1eY9hDsfQxn/sTLjTiR2GNc:MkyrKBydDq91eAhEmn/AG2GNc

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

81dc4ca3a4d222487e15de43df6392b1.bin
.exe windows:4 windows x86 arch:x86

Code Sign

38:25:d7:fa:f8:61:af:9e:f4:90:e7:26:b5:d6:5a:d5
Certificate

Issuer

CN=VeriSign Time Stamping Services CA,O=VeriSign\, Inc.,C=US

Not Before

15/06/2007, 00:00

Not After

14/06/2012, 23:59

Subject

CN=VeriSign Time Stamping Services Signer - G2,O=VeriSign\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

47:bf:19:95:df:8d:52:46:43:f7:db:6d:48:0d:31:a4
Certificate

Issuer

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

Not Before

04/12/2003, 00:00

Not After

03/12/2013, 23:59

Subject

CN=VeriSign Time Stamping Services CA,O=VeriSign\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

03:ca
Certificate

Issuer

CN=yessignCA General Class 2,OU=AccreditedCA,O=yessign,C=kr

Not Before

24/06/2010, 15:00

Not After

25/06/2011, 14:59

Subject

CN=다성자원주식회사,OU=code-sign+OU=20100625000003,O=yessign,C=kr

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

27:84
Certificate

Issuer

CN=KISA RootCA 1,OU=Korea Certification Authority Central,O=KISA,C=KR

Not Before

30/04/2010, 01:50

Not After

30/04/2020, 01:50

Subject

CN=yessignCA General Class 2,OU=AccreditedCA,O=yessign,C=kr

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

a5:c0:23:67:0b:49:41:4c:e7:26:ec:f4:83:0d:8b:ff:9a:ce:b1:cb
Signer

Actual PE Digest

a5:c0:23:67:0b:49:41:4c:e7:26:ec:f4:83:0d:8b:ff:9a:ce:b1:cb

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: 2.0MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 202KB - Virtual size: 204KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 8KB - Virtual size: 12KB

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

.text
Size: 176KB - Virtual size: 174KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 48KB - Virtual size: 45KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20KB - Virtual size: 37KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 2.0MB - Virtual size: 2.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

38:25:d7:fa:f8:61:af:9e:f4:90:e7:26:b5:d6:5a:d5Certificate

Extended Key Usages

Key Usages

47:bf:19:95:df:8d:52:46:43:f7:db:6d:48:0d:31:a4Certificate

Extended Key Usages

Key Usages

03:caCertificate

Extended Key Usages

Key Usages

27:84Certificate

Key Usages

a5:c0:23:67:0b:49:41:4c:e7:26:ec:f4:83:0d:8b:ff:9a:ce:b1:cbSigner

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 2.0MB

UPX1 Size: 202KB - Virtual size: 204KB

.rsrc Size: 8KB - Virtual size: 12KB

Headers

File Characteristics

Sections

.text Size: 176KB - Virtual size: 174KB

.rdata Size: 48KB - Virtual size: 45KB

.data Size: 20KB - Virtual size: 37KB

.rsrc Size: 2.0MB - Virtual size: 2.0MB

38:25:d7:fa:f8:61:af:9e:f4:90:e7:26:b5:d6:5a:d5
Certificate

47:bf:19:95:df:8d:52:46:43:f7:db:6d:48:0d:31:a4
Certificate

03:ca
Certificate

27:84
Certificate

a5:c0:23:67:0b:49:41:4c:e7:26:ec:f4:83:0d:8b:ff:9a:ce:b1:cb
Signer

UPX0
Size: - Virtual size: 2.0MB

UPX1
Size: 202KB - Virtual size: 204KB

.rsrc
Size: 8KB - Virtual size: 12KB

.text
Size: 176KB - Virtual size: 174KB

.rdata
Size: 48KB - Virtual size: 45KB

.data
Size: 20KB - Virtual size: 37KB

.rsrc
Size: 2.0MB - Virtual size: 2.0MB