Overview
overview
8Static
static
3ByteStealer.rar
windows11-21h2-x64
3Builder.exe
windows11-21h2-x64
8Mono.Cecil.Mdb.dll
windows11-21h2-x64
1Mono.Cecil.dll
windows11-21h2-x64
1Open.Nat.dll
windows11-21h2-x64
1lib.dll
windows11-21h2-x64
1protobuf-net.Core.dll
windows11-21h2-x64
1protobuf-net.dll
windows11-21h2-x64
1Analysis
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max time kernel
10s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
14/08/2024, 00:49
Static task
static1
Behavioral task
behavioral1
Sample
ByteStealer.rar
Resource
win11-20240802-en
Behavioral task
behavioral2
Sample
Builder.exe
Resource
win11-20240802-en
Behavioral task
behavioral3
Sample
Mono.Cecil.Mdb.dll
Resource
win11-20240802-en
Behavioral task
behavioral4
Sample
Mono.Cecil.dll
Resource
win11-20240802-en
Behavioral task
behavioral5
Sample
Open.Nat.dll
Resource
win11-20240802-en
Behavioral task
behavioral6
Sample
lib.dll
Resource
win11-20240802-en
Behavioral task
behavioral7
Sample
protobuf-net.Core.dll
Resource
win11-20240802-en
Behavioral task
behavioral8
Sample
protobuf-net.dll
Resource
win11-20240802-en
General
-
Target
Builder.exe
-
Size
627KB
-
MD5
54520a59c32a6af7cf8a89319a6e3e50
-
SHA1
e9342b2d32f21b5325800f9ba03bcbd7c49abf7a
-
SHA256
a01294fed374d6dea5c63d7025ddcbf62564ab9447bfa99595c8aed56d7e92b9
-
SHA512
ba0d62649dd4f386f0b5a6f74484faf12be8db1926471b41876a0d1dfb0251be4a2b98ab028bcad24aa0822be5351f5fe74caa400dfc8019748ed1d13f78ca58
-
SSDEEP
12288:lgTCcja2k0qp3nZxTdOqRTEuDa6u79o+MBF7L1QVDp/SkDexp+JJVo:GjaTpp3ZBR3u7K5QV4kCmVo
Malware Config
Signatures
-
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 4676 powershell.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4676 powershell.exe 4676 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2664 Builder.exe Token: SeDebugPrivilege 4676 powershell.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\Builder.exe"C:\Users\Admin\AppData\Local\Temp\Builder.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2664
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAA==1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4676
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82