Overview
overview
10Static
static
10Builder Wo...ro.exe
windows7-x64
1Builder Wo...ro.exe
windows10-2004-x64
1DotNetZip.dll
windows7-x64
1DotNetZip.dll
windows10-2004-x64
1Extreme.Net.dll
windows7-x64
1Extreme.Net.dll
windows10-2004-x64
1MetroFrame...gn.dll
windows7-x64
1MetroFrame...gn.dll
windows10-2004-x64
1MetroFrame...ts.dll
windows7-x64
1MetroFrame...ts.dll
windows10-2004-x64
1MetroFramework.dll
windows7-x64
1MetroFramework.dll
windows10-2004-x64
1Mono.Cecil.dll
windows7-x64
1Mono.Cecil.dll
windows10-2004-x64
1stub.exe
windows7-x64
10stub.exe
windows10-2004-x64
10Behavioral task
behavioral1
Sample
Builder WorldWind Pro.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
Builder WorldWind Pro.exe
Resource
win10v2004-20230621-en
Behavioral task
behavioral3
Sample
DotNetZip.dll
Resource
win7-20230621-en
Behavioral task
behavioral4
Sample
DotNetZip.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral5
Sample
Extreme.Net.dll
Resource
win7-20230621-en
Behavioral task
behavioral6
Sample
Extreme.Net.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral7
Sample
MetroFramework.Design.dll
Resource
win7-20230621-en
Behavioral task
behavioral8
Sample
MetroFramework.Design.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral9
Sample
MetroFramework.Fonts.dll
Resource
win7-20230621-en
Behavioral task
behavioral10
Sample
MetroFramework.Fonts.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral11
Sample
MetroFramework.dll
Resource
win7-20230621-en
Behavioral task
behavioral12
Sample
MetroFramework.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral13
Sample
Mono.Cecil.dll
Resource
win7-20230621-en
Behavioral task
behavioral14
Sample
Mono.Cecil.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral15
Sample
stub.exe
Resource
win7-20230621-en
Behavioral task
behavioral16
Sample
stub.exe
Resource
win10v2004-20230621-en
General
-
Target
Builder_WorldWind_Pro.zip.zip
-
Size
1.1MB
-
MD5
4ae361151f57fb7f142ab478880ec825
-
SHA1
a978940a78a884c4e1b05ce0c96a40ff95d57675
-
SHA256
6390467951c0580c0dbb5f295bd194da42241825cab5b90402cf86668827e89e
-
SHA512
956fe6efb6341c2a7a43fa6d5cfffe819f7afeb27f27cb1020bb19a8accf715efd6c52cc1ec24714a959453fa1266c3b9219ec18849885649a88d95afc7e3b9f
-
SSDEEP
24576:FCio9zjRhuZooGAt4kpXp16TdR2SOoUGGwa0w2irbeQrltw7mJ:eNn/BAt3pXeTdR2SO4GwjZiOQrTb
Malware Config
Extracted
asyncrat
Default
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
AsyncMutex_6SI8OkPnk
-
delay
3
-
install
false
-
install_folder
%AppData%
Signatures
-
Async RAT payload 1 IoCs
resource yara_rule static1/unpack002/stub.dll asyncrat -
Asyncrat family
-
StormKitty payload 1 IoCs
resource yara_rule static1/unpack002/stub.dll family_stormkitty -
Stormkitty family
-
Unsigned PE 8 IoCs
Checks for missing Authenticode signature.
resource unpack002/Builder WorldWind Pro.exe unpack002/DotNetZip.dll unpack002/Extreme.Net.dll unpack002/MetroFramework.Design.dll unpack002/MetroFramework.Fonts.dll unpack002/MetroFramework.dll unpack002/Mono.Cecil.dll unpack002/stub.dll
Files
-
Builder_WorldWind_Pro.zip.zip.zip
Password: infected
-
Builder_WorldWind_Pro.zip.zip
-
Builder WorldWind Pro.exe.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 329KB - Virtual size: 328KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 86KB - Virtual size: 86KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
DotNetZip.dll.dll windows x86
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorDllMain
Sections
.text Size: 446KB - Virtual size: 445KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1024B - Virtual size: 932B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
Extreme.Net.dll.dll windows x86
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorDllMain
Sections
.text Size: 118KB - Virtual size: 118KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
MetroFramework.Design.dll.dll windows x86
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorDllMain
Sections
.text Size: 14KB - Virtual size: 13KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
MetroFramework.Fonts.dll.dll windows x86
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorDllMain
Sections
.text Size: 654KB - Virtual size: 653KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
MetroFramework.dll.dll windows x86
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorDllMain
Sections
.text Size: 311KB - Virtual size: 310KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
Mono.Cecil.dll.dll windows x86
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorDllMain
Sections
.text Size: 271KB - Virtual size: 270KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1024B - Virtual size: 824B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
stub.dll.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 167KB - Virtual size: 166KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ