Analysis
-
max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
13-02-2023 23:42
Static task
static1
Behavioral task
behavioral1
Sample
contribute.dll
Resource
win7-20220812-en
windows7-x64
3 signatures
150 seconds
General
-
Target
contribute.dll
-
Size
2.2MB
-
MD5
a719d4ef0765ba845179d9819c37c061
-
SHA1
9aa9bc1b5707bddcbfbdbf5f8d24e477428d59af
-
SHA256
05e26546200479529011d3500d17694e8ff14a7acaf1a229c5e28ab13ed22c99
-
SHA512
237075e8115de5fde24dae339e6ddc3d2540993b8c420f16a8995d63b3b2628f62088c0d4327dd1f98f63d83ed74f9c1fe83ee722db549f53876e65c45f921f0
-
SSDEEP
49152:jpjKPCexHdaV5UT0PbDTQfWPjgH3/OiU7H1OXQ:jp2qeHdIST0PPTNPjIHU7HEXQ
Malware Config
Extracted
Family
bumblebee
Botnet
132cc
C2
173.234.155.246:443
172.86.120.111:443
31.232.16.192:443
205.185.113.34:443
103.175.16.104:443
23.254.167.63:443
23.82.140.155:443
51.68.144.43:443
185.173.34.35:443
104.168.157.253:443
146.19.173.86:443
160.20.147.242:443
rc4.plain
Signatures
-
Blocklisted process makes network request 8 IoCs
flow pid Process 11 5072 rundll32.exe 27 5072 rundll32.exe 39 5072 rundll32.exe 40 5072 rundll32.exe 42 5072 rundll32.exe 44 5072 rundll32.exe 45 5072 rundll32.exe 46 5072 rundll32.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 5072 rundll32.exe