sample[.]zip | Triage

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General

Target

sample.zip
Size

889KB
MD5

5d82eb56987faa65a3470af7cebd20f2
SHA1

96e712e15d4b1c994bfe146898f937ef4da43763
SHA256

956dd3c5dffeba2795c7c26f51a74f088bb088ba8e5d2e8161778a09d694abab
SHA512

cdbd462530efb77097381b5cf1a7a006f354a6e8d07b8eec7b5bedbf305903fda0575ae1a187d1f3279177c202614b8b373f4dc84ebda3a821d3cac28894ce83
SSDEEP

24576:QL6ni8rbmnGONxBeWjnh7ZF4xZn23sjWiktWOXbXkh:oAiAanG0cch7YDGsSik7kh

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
static1/unpack001/svchost.exe	upx

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack003/out.upx

Files

sample.zip
.zip

Password: infected
Media.xml
svchost.dat
.zip
svchost.exe
.exe windows x86

Password: infected

Code Sign

01:ee:5f:16:9d:ff:97:35:2b:64:65:d6:6a
Certificate

Issuer

CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE

Not Before

19/09/2018, 00:00

Not After

28/01/2028, 12:00

Subject

CN=GlobalSign,OU=GlobalSign Root CA - R3,O=GlobalSign

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

48:1b:6a:07:a9:42:4c:1e:aa:fe:f3:cd:f1:0f
Certificate

Issuer

CN=GlobalSign,OU=GlobalSign Root CA - R3,O=GlobalSign

Not Before

15/06/2016, 00:00

Not After

15/06/2024, 00:00

Subject

CN=GlobalSign Extended Validation CodeSigning CA - SHA256 - G3,O=GlobalSign nv-sa,C=BE

Extended Key Usages

ExtKeyUsageCodeSigning
ExtKeyUsageOCSPSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

7a:b0:36:d2:cb:27:e9:7c:ef:1e:1f:bf
Certificate

Issuer

CN=GlobalSign Extended Validation CodeSigning CA - SHA256 - G3,O=GlobalSign nv-sa,C=BE

Not Before

19/12/2019, 10:00

Not After

17/03/2023, 06:23

Subject

SERIALNUMBER=110111-1535991,CN=NetSarang Computer\, Inc.,O=NetSarang Computer\, Inc.,STREET=85\, Gwangnaru-ro 56-gil,L=GWANGJIN-GU,ST=SEOUL,C=KR,1.3.6.1.4.1.311.60.2.1.3=#13024b52,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0c:a7:cf:5d:07:07:24:ac:89:e7:9a:3a
Certificate

Issuer

CN=GlobalSign Timestamping CA - SHA256 - G2,O=GlobalSign nv-sa,C=BE

Not Before

19/02/2018, 00:00

Not After

18/03/2029, 10:00

Subject

CN=GlobalSign TSA for Advanced - G2

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

04:00:00:00:00:01:31:89:c6:50:04
Certificate

Issuer

CN=GlobalSign,OU=GlobalSign Root CA - R3,O=GlobalSign

Not Before

02/08/2011, 10:00

Not After

29/03/2029, 10:00

Subject

CN=GlobalSign Timestamping CA - SHA256 - G2,O=GlobalSign nv-sa,C=BE

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

9d:5f:74:05:3a:77:76:8b:99:bf:1d:96:b7:c8:f0:e7:35:5c:5a:6a
Signer

Actual PE Digest

9d:5f:74:05:3a:77:76:8b:99:bf:1d:96:b7:c8:f0:e7:35:5c:5a:6a

Digest Algorithm

sha1

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

SERIALNUMBER=110111-1535991,CN=NetSarang Computer\, Inc.,O=NetSarang Computer\, Inc.,STREET=85\, Gwangnaru-ro 56-gil,L=GWANGJIN-GU,ST=SEOUL,C=KR,1.3.6.1.4.1.311.60.2.1.3=#13024b52,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e

05/11/2020, 08:59
Valid: true

Chain 1

SERIALNUMBER=110111-1535991,CN=NetSarang Computer\, Inc.,O=NetSarang Computer\, Inc.,STREET=85\, Gwangnaru-ro 56-gil,L=GWANGJIN-GU,ST=SEOUL,C=KR,1.3.6.1.4.1.311.60.2.1.3=#13024b52,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e

CN=GlobalSign Extended Validation CodeSigning CA - SHA256 - G3,O=GlobalSign nv-sa,C=BE

CN=GlobalSign,OU=GlobalSign Root CA - R3,O=GlobalSign

Chain 2

SERIALNUMBER=110111-1535991,CN=NetSarang Computer\, Inc.,O=NetSarang Computer\, Inc.,STREET=85\, Gwangnaru-ro 56-gil,L=GWANGJIN-GU,ST=SEOUL,C=KR,1.3.6.1.4.1.311.60.2.1.3=#13024b52,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e

CN=GlobalSign Extended Validation CodeSigning CA - SHA256 - G3,O=GlobalSign nv-sa,C=BE

CN=GlobalSign,OU=GlobalSign Root CA - R3,O=GlobalSign

CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE

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: 800KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 436KB - Virtual size: 440KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 30KB - Virtual size: 32KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows 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: 916KB - Virtual size: 912KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 164KB - Virtual size: 160KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 84KB - Virtual size: 99KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 40KB - Virtual size: 39KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
update.log

Sharing

General

Malware Config

Signatures

Files

Password: infected

Password: infected

Code Sign

01:ee:5f:16:9d:ff:97:35:2b:64:65:d6:6aCertificate

Key Usages

48:1b:6a:07:a9:42:4c:1e:aa:fe:f3:cd:f1:0fCertificate

Extended Key Usages

Key Usages

7a:b0:36:d2:cb:27:e9:7c:ef:1e:1f:bfCertificate

Extended Key Usages

Key Usages

0c:a7:cf:5d:07:07:24:ac:89:e7:9a:3aCertificate

Extended Key Usages

Key Usages

04:00:00:00:00:01:31:89:c6:50:04Certificate

Key Usages

9d:5f:74:05:3a:77:76:8b:99:bf:1d:96:b7:c8:f0:e7:35:5c:5a:6aSigner

Signature Validations

Verification

05/11/2020, 08:59 Valid: true

Chain 1

Chain 2

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 800KB

UPX1 Size: 436KB - Virtual size: 440KB

.rsrc Size: 30KB - Virtual size: 32KB

Headers

File Characteristics

Sections

.text Size: 916KB - Virtual size: 912KB

.rdata Size: 164KB - Virtual size: 160KB

.data Size: 84KB - Virtual size: 99KB

.rsrc Size: 40KB - Virtual size: 39KB

01:ee:5f:16:9d:ff:97:35:2b:64:65:d6:6a
Certificate

48:1b:6a:07:a9:42:4c:1e:aa:fe:f3:cd:f1:0f
Certificate

7a:b0:36:d2:cb:27:e9:7c:ef:1e:1f:bf
Certificate

0c:a7:cf:5d:07:07:24:ac:89:e7:9a:3a
Certificate

04:00:00:00:00:01:31:89:c6:50:04
Certificate

9d:5f:74:05:3a:77:76:8b:99:bf:1d:96:b7:c8:f0:e7:35:5c:5a:6a
Signer

05/11/2020, 08:59
Valid: true

UPX0
Size: - Virtual size: 800KB

UPX1
Size: 436KB - Virtual size: 440KB

.rsrc
Size: 30KB - Virtual size: 32KB

.text
Size: 916KB - Virtual size: 912KB

.rdata
Size: 164KB - Virtual size: 160KB

.data
Size: 84KB - Virtual size: 99KB

.rsrc
Size: 40KB - Virtual size: 39KB