Static task
static1
Behavioral task
behavioral1
Sample
yyb4.sp.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
yyb4.sp.exe
Resource
win10v2004-20230703-en
General
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Target
yyb4.sp.exe
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Size
35.7MB
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MD5
f871a3ae0740b8408af7533b185dd248
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SHA1
b0cc8578e83d1bfe38e0ea2417ef8539773c3834
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SHA256
b99de4a0b35d5487a657e4cf0259fe31943855c5112e538ed080644f1c169b55
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SHA512
51003a682b61576c5c188c59786b9066c39972a4c80959fc808093699c531ea6cbd7f4bd313bc7040b79033eeca49f81e6a6dcab09f62e6c68867a9f4ec90ba3
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SSDEEP
786432:lpY5wFjE0S5KL6Gqf7JXmyJxZ54+UetzG:lpWwFjpYxZ++U4z
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource yyb4.sp.exe
Files
-
yyb4.sp.exe.exe windows x86
5ceec759430b802aa530832556453070
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
Imports
winmm
midiStreamStop
ws2_32
sendto
kernel32
GetTimeZoneInformation
user32
SetMenu
gdi32
LineTo
winspool.drv
ClosePrinter
advapi32
RegQueryValueExA
shell32
SHGetSpecialFolderPathA
ole32
OleRun
oleaut32
UnRegisterTypeLi
comctl32
ImageList_GetIcon
wldap32
ord29
comdlg32
ChooseColorA
Sections
.text Size: - Virtual size: 1.3MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: - Virtual size: 1.8MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: - Virtual size: 383KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 64KB - Virtual size: 63KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.svmp1 Size: - Virtual size: 5.4MB
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.svmp2 Size: 6.4MB - Virtual size: 6.4MB
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.svmp3 Size: 2.1MB - Virtual size: 2.1MB
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.svmp4 Size: 27.1MB - Virtual size: 27.1MB
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE