a8b4b682c2d3ff19c1c7d4e875a48de3d725885a0025c845df7465ebd4c40dc2

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General

Target

a8b4b682c2d3ff19c1c7d4e875a48de3d725885a0025c845df7465ebd4c40dc2
Size

2.8MB
MD5

08b102081f8893ee8c69f6ac4de24e13
SHA1

a6fd3942bdf053debe8b52db155a2ae8999fc6aa
SHA256

a8b4b682c2d3ff19c1c7d4e875a48de3d725885a0025c845df7465ebd4c40dc2
SHA512

2743c2df640ca025a8b1434a97604c59b819c78c4400510258d26d4ec1f8a2552d4185a2ef066ea162f3cd9c1697579ececc094b4c0ad4f975cee7feb2453b9a
SSDEEP

49152:muGoGv6RA28oUoQsCS0v0OBRR71FqiYMIWEt8BvMFjHrozgN98zhMhxjtpxSp:chrQUoubc+Iirb081SHrKxhItpxu

Score

8^/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

Files

a8b4b682c2d3ff19c1c7d4e875a48de3d725885a0025c845df7465ebd4c40dc2
.exe windows x64

Code Sign

78:43:34:75:fd:e2:44:93:4b:9a:59:6f:29:b3:5d:83
Certificate

Issuer

CN=www.esteemed.com

Not Before

26-10-2022 18:39

Not After

26-10-2023 18:59

Subject

CN=www.esteemed.com

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Not Before

02-05-2019 00:00

Not After

18-01-2038 23:59

Subject

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

Issuer

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

11-05-2022 00:00

Not After

10-08-2033 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #3,O=Sectigo Limited,ST=Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

9b:04:48:7e:97:9c:62:aa:61:22:23:46:d0:24:e3:08:24:89:34:a0:d5:88:34:19:0f:c8:be:7d:24:20:7e:f8
Signer

Actual PE Digest

9b:04:48:7e:97:9c:62:aa:61:22:23:46:d0:24:e3:08:24:89:34:a0:d5:88:34:19:0f:c8:be:7d:24:20:7e:f8

Digest Algorithm

sha256

PE Digest Matches

false

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=www.esteemed.com

27-10-2022 14:05
Valid: false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Sections

UPX0
Size: - Virtual size: 5.1MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 2.8MB - Virtual size: 2.8MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX2
Size: 512B - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows x64

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Exports

Exports

_cgo_dummy_export
authorizerTrampoline
callbackTrampoline
commitHookTrampoline
compareTrampoline
doneTrampoline
preUpdateHookTrampoline
rollbackHookTrampoline
stepTrampoline
updateHookTrampoline

Sections

.text
Size: 4.0MB - Virtual size: 4.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 261KB - Virtual size: 261KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 3.1MB - Virtual size: 3.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 24KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 25KB - Virtual size: 25KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 386KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.edata
Size: 512B - Virtual size: 345B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 104B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 54KB - Virtual size: 54KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

78:43:34:75:fd:e2:44:93:4b:9a:59:6f:29:b3:5d:83Certificate

Extended Key Usages

Key Usages

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9Certificate

Extended Key Usages

Key Usages

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43Certificate

Extended Key Usages

Key Usages

9b:04:48:7e:97:9c:62:aa:61:22:23:46:d0:24:e3:08:24:89:34:a0:d5:88:34:19:0f:c8:be:7d:24:20:7e:f8Signer

Signature Validations

Verification

27-10-2022 14:05 Valid: false

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 5.1MB

UPX1 Size: 2.8MB - Virtual size: 2.8MB

UPX2 Size: 512B - Virtual size: 4KB

Headers

DLL Characteristics

File Characteristics

Exports

Exports

Sections

.text Size: 4.0MB - Virtual size: 4.0MB

.data Size: 261KB - Virtual size: 261KB

.rdata Size: 3.1MB - Virtual size: 3.1MB

.pdata Size: 24KB - Virtual size: 23KB

.xdata Size: 25KB - Virtual size: 25KB

.bss Size: - Virtual size: 386KB

.edata Size: 512B - Virtual size: 345B

.idata Size: 6KB - Virtual size: 5KB

.CRT Size: 512B - Virtual size: 104B

.tls Size: 512B - Virtual size: 16B

.reloc Size: 54KB - Virtual size: 54KB

78:43:34:75:fd:e2:44:93:4b:9a:59:6f:29:b3:5d:83
Certificate

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

9b:04:48:7e:97:9c:62:aa:61:22:23:46:d0:24:e3:08:24:89:34:a0:d5:88:34:19:0f:c8:be:7d:24:20:7e:f8
Signer

27-10-2022 14:05
Valid: false

UPX0
Size: - Virtual size: 5.1MB

UPX1
Size: 2.8MB - Virtual size: 2.8MB

UPX2
Size: 512B - Virtual size: 4KB

.text
Size: 4.0MB - Virtual size: 4.0MB

.data
Size: 261KB - Virtual size: 261KB

.rdata
Size: 3.1MB - Virtual size: 3.1MB

.pdata
Size: 24KB - Virtual size: 23KB

.xdata
Size: 25KB - Virtual size: 25KB

.bss
Size: - Virtual size: 386KB

.edata
Size: 512B - Virtual size: 345B

.idata
Size: 6KB - Virtual size: 5KB

.CRT
Size: 512B - Virtual size: 104B

.tls
Size: 512B - Virtual size: 16B

.reloc
Size: 54KB - Virtual size: 54KB