keygen[.]exe | Triage

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General

Target

keygen.exe
Size

1.2MB
MD5

9ccf3d76de2d848e01981b3d8153bc65
SHA1

e635262dece716924686d2e58578e14326f40359
SHA256

cd5fed24e45ffa986b56784e494559c37162966ab6608ba745acb83b8cf1e4ad
SHA512

58bdde345b9151aa52ef05d6c8a926b81692ac4a3290afe66dc939055fdb6f1c8f7dc8d49be66cb61fb747e2a42d927b2b5c144e038b0d9b46c11f0ca27660b1
SSDEEP

24576:8M6H7/V8s6tmsFXqU9/K9BkIDgA3wal1:8M4/Ss6JFJSX53l

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

keygen.exe
.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_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Sections

UPX0
Size: - Virtual size: 2.8MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 626KB - Virtual size: 628KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 555KB - Virtual size: 556KB

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_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Exports

Exports

TMethodImplementationIntercept
__dbk_fcall_wrapper
dbkFCallWrapperAddr

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.itext
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 36KB - Virtual size: 35KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 24KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.didata
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.edata
Size: 512B - Virtual size: 156B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: - Virtual size: 72B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 512B - Virtual size: 93B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 183KB - Virtual size: 183KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 2.8MB

UPX1 Size: 626KB - Virtual size: 628KB

.rsrc Size: 555KB - Virtual size: 556KB

Headers

File Characteristics

Exports

Exports

Sections

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

.itext Size: 5KB - Virtual size: 5KB

.data Size: 36KB - Virtual size: 35KB

.bss Size: - Virtual size: 24KB

.idata Size: 12KB - Virtual size: 12KB

.didata Size: 3KB - Virtual size: 2KB

.edata Size: 512B - Virtual size: 156B

.tls Size: - Virtual size: 72B

.rdata Size: 512B - Virtual size: 93B

.reloc Size: 183KB - Virtual size: 183KB

.rsrc Size: 1.1MB - Virtual size: 1.1MB

UPX0
Size: - Virtual size: 2.8MB

UPX1
Size: 626KB - Virtual size: 628KB

.rsrc
Size: 555KB - Virtual size: 556KB

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

.itext
Size: 5KB - Virtual size: 5KB

.data
Size: 36KB - Virtual size: 35KB

.bss
Size: - Virtual size: 24KB

.idata
Size: 12KB - Virtual size: 12KB

.didata
Size: 3KB - Virtual size: 2KB

.edata
Size: 512B - Virtual size: 156B

.tls
Size: - Virtual size: 72B

.rdata
Size: 512B - Virtual size: 93B

.reloc
Size: 183KB - Virtual size: 183KB

.rsrc
Size: 1.1MB - Virtual size: 1.1MB