daybreak_windows_v1[.]1[.]0[.]zip

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General

Target

daybreak_windows_v1.1.0.zip
Size

64.8MB
MD5

1b786397e896dff1659ab5f5cc55013e
SHA1

9e3cf3662cb29c0b9bce421772c65a2d644215cf
SHA256

9889cde3cbc94297f06f0029b6921c59a2027420dbdcd8c02d5e257d4996bc30
SHA512

9f675f861cae8f92f2307c27ca0b0bebc3ba612e030d971685e4fffd4741e8bd4e72555147ea09af675382f50b52cf5f8a7a225bca3e8fafa3f5155d7a0cccc1
SSDEEP

1572864:1dgP//h92h8gCBqoN71k8fLWDjbVQi5+mp89Q3A/iNGrDIf6W/G:1dgP723CBqARk8TWrVj5rpTNU6u

Score

7^/10

pdf link upx

Malware Config

Signatures

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
static1/unpack001/daybreak_windows_v1.1.0/data/web_deliver/nscan_386.exe	upx
static1/unpack001/daybreak_windows_v1.1.0/data/web_deliver/nscan_amd64.exe	upx
static1/unpack001/daybreak_windows_v1.1.0/data/web_deliver/nscan_linux_amd64	upx
static1/unpack001/daybreak_windows_v1.1.0/data/web_deliver/upx.exe	upx
static1/unpack001/daybreak_windows_v1.1.0/nserver_amd64.exe	upx

One or more HTTP URLs in PDF identified
Detects presence of HTTP links in PDF files.
pdf link

Unsigned PE 8 IoCs

Checks for missing Authenticode signature.

resource
unpack001/daybreak_windows_v1.1.0/data/web_deliver/nscan_386.exe
unpack003/out.upx
unpack001/daybreak_windows_v1.1.0/data/web_deliver/nscan_amd64.exe
unpack004/out.upx
unpack001/daybreak_windows_v1.1.0/data/web_deliver/nscan_arm.exe
unpack001/daybreak_windows_v1.1.0/data/web_deliver/upx.exe
unpack001/daybreak_windows_v1.1.0/nserver_amd64.exe
unpack006/out.upx

Files

daybreak_windows_v1.1.0.zip
.zip
daybreak_windows_v1.1.0/Daybreak_doc.pdf
.pdf
- http://127.0.0.1:1234
- http://4.web
- http://baidu.com:443
- http://domain.com
- http://www.baidu.com
- https://127.0.0.1:1337
- https://daybreak.tophant.com/
- https://github.com/TophantTechnology/Daybreak/issues/5
- https://www.baidu.com
daybreak_windows_v1.1.0/data/web_deliver/nscan_386.exe
.exe windows:6 windows x86 arch: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
IMAGE_FILE_DEBUG_STRIPPED

Sections

UPX0
Size: - Virtual size: 13.5MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 5.5MB - Virtual size: 5.5MB

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:6 windows x86 arch: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
IMAGE_FILE_DEBUG_STRIPPED

Sections

.text
Size: 6.7MB - Virtual size: 6.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 10.9MB - Virtual size: 10.9MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 431KB - Virtual size: 661KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 1024B - Virtual size: 1000B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 567KB - Virtual size: 566KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.symtab
Size: 512B - Virtual size: 4B

IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
daybreak_windows_v1.1.0/data/web_deliver/nscan_amd64.exe
.exe windows:6 windows x64 arch: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_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Sections

UPX0
Size: - Virtual size: 14.9MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 6.3MB - Virtual size: 6.3MB

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:6 windows x64 arch: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_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Sections

.text
Size: 7.2MB - Virtual size: 7.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 12.4MB - Virtual size: 12.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 570KB - Virtual size: 1001KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 386KB - Virtual size: 386KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.symtab
Size: 512B - Virtual size: 4B

IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
daybreak_windows_v1.1.0/data/web_deliver/nscan_arm.exe
.exe windows:6 windows

52b71d27d4ef0025963cd534bcca04c3

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
IMAGE_FILE_DEBUG_STRIPPED

Imports

kernel32

WriteFile
WriteConsoleW
WaitForMultipleObjects
WaitForSingleObject
VirtualQuery
VirtualFree
VirtualAlloc
TlsAlloc
SwitchToThread
Sleep
SetWaitableTimer
SetUnhandledExceptionFilter
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
PostQueuedCompletionStatus
LoadLibraryA
LoadLibraryW
GetSystemInfo
GetSystemDirectoryA
GetStdHandle
GetQueuedCompletionStatusEx
GetProcessAffinityMask
GetProcAddress
GetEnvironmentStringsW
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateWaitableTimerExW
CreateThread
CreateIoCompletionPort
CreateFileA
CreateEventA
CloseHandle
AddVectoredExceptionHandler

Sections

.text
Size: 7.0MB - Virtual size: 7.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 10.5MB - Virtual size: 10.5MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 421KB - Virtual size: 643KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 1024B - Virtual size: 928B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 502KB - Virtual size: 501KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.symtab
Size: 512B - Virtual size: 4B

IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
daybreak_windows_v1.1.0/data/web_deliver/nscan_darwin_amd64
.macho macos arch:x64
daybreak_windows_v1.1.0/data/web_deliver/nscan_darwin_arm64
.macho macos arch:arm64
daybreak_windows_v1.1.0/data/web_deliver/nscan_linux_amd64
.elf linux x64
daybreak_windows_v1.1.0/data/web_deliver/nscan_linux_arm
.elf linux arm
daybreak_windows_v1.1.0/data/web_deliver/upx.exe
.exe windows:4 windows x64 arch:x64

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
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: 1.6MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 400KB - Virtual size: 404KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 2KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
daybreak_windows_v1.1.0/nserver_amd64.exe
.exe windows:6 windows x64 arch: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_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Sections

UPX0
Size: - Virtual size: 34.1MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 23.1MB - Virtual size: 23.1MB

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:6 windows x64 arch: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_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Sections

.text
Size: 10.5MB - Virtual size: 10.5MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 26.8MB - Virtual size: 26.8MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 18.7MB - Virtual size: 19.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 477KB - Virtual size: 476KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.symtab
Size: 512B - Virtual size: 4B

IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 13.5MB

UPX1 Size: 5.5MB - Virtual size: 5.5MB

UPX2 Size: 512B - Virtual size: 4KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 6.7MB - Virtual size: 6.7MB

.rdata Size: 10.9MB - Virtual size: 10.9MB

.data Size: 431KB - Virtual size: 661KB

.idata Size: 1024B - Virtual size: 1000B

.reloc Size: 567KB - Virtual size: 566KB

.symtab Size: 512B - Virtual size: 4B

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 14.9MB

UPX1 Size: 6.3MB - Virtual size: 6.3MB

UPX2 Size: 512B - Virtual size: 4KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 7.2MB - Virtual size: 7.2MB

.rdata Size: 12.4MB - Virtual size: 12.4MB

.data Size: 570KB - Virtual size: 1001KB

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

.reloc Size: 386KB - Virtual size: 386KB

.symtab Size: 512B - Virtual size: 4B

52b71d27d4ef0025963cd534bcca04c3

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Sections

.text Size: 7.0MB - Virtual size: 7.0MB

.rdata Size: 10.5MB - Virtual size: 10.5MB

.data Size: 421KB - Virtual size: 643KB

.idata Size: 1024B - Virtual size: 928B

.reloc Size: 502KB - Virtual size: 501KB

.symtab Size: 512B - Virtual size: 4B

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 1.6MB

UPX1 Size: 400KB - Virtual size: 404KB

.rsrc Size: 2KB - Virtual size: 4KB

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 34.1MB

UPX1 Size: 23.1MB - Virtual size: 23.1MB

UPX2 Size: 512B - Virtual size: 4KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 10.5MB - Virtual size: 10.5MB

.rdata Size: 26.8MB - Virtual size: 26.8MB

.data Size: 18.7MB - Virtual size: 19.1MB

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

.reloc Size: 477KB - Virtual size: 476KB

.symtab Size: 512B - Virtual size: 4B

UPX0
Size: - Virtual size: 13.5MB

UPX1
Size: 5.5MB - Virtual size: 5.5MB

UPX2
Size: 512B - Virtual size: 4KB

.text
Size: 6.7MB - Virtual size: 6.7MB

.rdata
Size: 10.9MB - Virtual size: 10.9MB

.data
Size: 431KB - Virtual size: 661KB

.idata
Size: 1024B - Virtual size: 1000B

.reloc
Size: 567KB - Virtual size: 566KB

.symtab
Size: 512B - Virtual size: 4B

UPX0
Size: - Virtual size: 14.9MB

UPX1
Size: 6.3MB - Virtual size: 6.3MB

UPX2
Size: 512B - Virtual size: 4KB

.text
Size: 7.2MB - Virtual size: 7.2MB

.rdata
Size: 12.4MB - Virtual size: 12.4MB

.data
Size: 570KB - Virtual size: 1001KB

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

.reloc
Size: 386KB - Virtual size: 386KB

.symtab
Size: 512B - Virtual size: 4B

.text
Size: 7.0MB - Virtual size: 7.0MB

.rdata
Size: 10.5MB - Virtual size: 10.5MB

.data
Size: 421KB - Virtual size: 643KB

.idata
Size: 1024B - Virtual size: 928B

.reloc
Size: 502KB - Virtual size: 501KB

.symtab
Size: 512B - Virtual size: 4B

UPX0
Size: - Virtual size: 1.6MB

UPX1
Size: 400KB - Virtual size: 404KB

.rsrc
Size: 2KB - Virtual size: 4KB

UPX0
Size: - Virtual size: 34.1MB

UPX1
Size: 23.1MB - Virtual size: 23.1MB

UPX2
Size: 512B - Virtual size: 4KB

.text
Size: 10.5MB - Virtual size: 10.5MB

.rdata
Size: 26.8MB - Virtual size: 26.8MB

.data
Size: 18.7MB - Virtual size: 19.1MB

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

.reloc
Size: 477KB - Virtual size: 476KB

.symtab
Size: 512B - Virtual size: 4B