Analysis
-
max time kernel
98s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
-
submitted
23/02/2025, 02:13
General
-
Target
Bunker (STS) Notification..exe
-
Size
619KB
-
MD5
c176fa88d211acc3d63d6c8d3cf8d5a6
-
SHA1
c87881a891fa05cd1c4caa8cc10451359db163f4
-
SHA256
6ba3a37ac78eef40080be3a47e0ebcc30619221480d5bdd60a97fd571bda2ba2
-
SHA512
4b80ec090a296025b45de505d36059258701bdc78330421a00679bac5da6e5105d4b9eb1b11bf5398fd154a62ee8d30d023b87d55acdacc2d28ea1382384a886
-
SSDEEP
12288:5UVC9GIaG5ez13NhJN6U+c7DK3YKFQC0ncfFF9AUiDeDx3E:KVzK5ez13N56UP7RKFQC0cdqDeDB
Malware Config
Signatures
-
Guloader family
-
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
-
Loads dropped DLL 2 IoCs
-
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
-
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
-
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
-
Suspicious behavior: EnumeratesProcesses 14 IoCs
-
Suspicious behavior: MapViewOfSection 1 IoCs
-
Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Bunker (STS) Notification..exe"C:\Users\Admin\AppData\Local\Temp\Bunker (STS) Notification..exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Bunker (STS) Notification..exe"C:\Users\Admin\AppData\Local\Temp\Bunker (STS) Notification..exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
11KB
MD52ae993a2ffec0c137eb51c8832691bcb
SHA198e0b37b7c14890f8a599f35678af5e9435906e1
SHA256681382f3134de5c6272a49dd13651c8c201b89c247b471191496e7335702fa59
SHA5122501371eb09c01746119305ba080f3b8c41e64535ff09cee4f51322530366d0bd5322ea5290a466356598027e6cda8ab360caef62dcaf560d630742e2dd9bcd9
-
Filesize
1.1MB
-
Filesize
4KB
-
Filesize
18.3MB
-
Filesize
94.8MB
-
Filesize
1.1MB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
18.3MB
-
Filesize
12KB
-
Filesize
94.8MB
-
Filesize
18.3MB
-
Filesize
1.1MB
-
Filesize
18.3MB
-
Filesize
18.3MB
-
Filesize
12KB
-
Filesize
18.3MB
-
Filesize
18.3MB
-
Filesize
12KB