flyagent | 8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978

Analysis

max time kernel
51s
max time network
127s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
31/08/2026, 05:16

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General

Target
8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe
Size 1.4MB
Sample260831-fx7rysdp4z
SHA256 8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978
MD5 1bc9d438deb123cb76a60f5dd520e3da
SHA1 06eed3be40b399054bb1895eeb4b0588b935c23e
SHA512 aaceb3f6b3caf4e568aa382a3cc007874b29499e0c14e15a67968b6e9609194a7b3622476cd6f34ccaf6c9ce24144f5ea063005048a97da335095efa01e11fef
SSDEEP 24576:faMoNmfTEs86C9r5m84DVTh22rFvGf9VLegQEollG4uXpeTR6T:f0NeEs86FvMLejlG4uYM
TLSH
T1D6659E27E9C180F2C198107168AB1F35FEB456912E358B83A7D4EEB85F72790DA3721D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery execution flyagent

Malware Config

Signatures

Family: FlyAgent
FlyAgent is a backdoor written in C++.
backdoor flyagent

Detects FlyAgent Backdoor 1 IoCs

resource	yara_rule
behavioral2/memory/4576-16-0x0000000000400000-0x000000000056D000-memory.dmp	flyagent

Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs

execution

Visual Basic

T1059.005

pid	Process
4956	WScript.exe
4940	WScript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-189034102-168398478-1159367937-1000_Classes\Local Settings	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4576	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe
4576	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe
4576	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe
4576	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4576	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4576	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe
4576	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4576 wrote to memory of 4956	4576	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe	90
PID 4576 wrote to memory of 4940	4576	8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe	89

C:\Users\Admin\AppData\Local\Temp\8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe
"C:\Users\Admin\AppData\Local\Temp\8ba26af4067c40dfa894c6d4450c8aed26fb46e1777fc470a04939933ca2f978.exe"
1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4576
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
  2⤵
  - Executes a VBScript file via the Windows Script Host.
  - System Location Discovery: System Language Discovery
  PID:4940
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
  2⤵
  - Executes a VBScript file via the Windows Script Host.
  - System Location Discovery: System Language Discovery
  PID:4956

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Visual Basic

T1059.005

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

VBS3.vbs

Path C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs
Size 753B
SHA256 bc4978a1d8ec0663039a964be5ebdaf4e5a60a8f44c57fab0307d18b75021103
MD5 1559023547585bdb8f2e266106c10e2e
SHA1 ed692883e812c50cb7a5c619035551b047591aff
SHA512 d9f8e12a74f8e7e650b184175231bc743b7193e57160a242efeeff3c8c4ce6f2499191a37c8a20358e8837a580a22c61303366c1f93e50b8042857c3047b6a8b
TLSH
T1B301C000DD6CC22D503647762473B40EF7AA1553A3039CD87859D1752F707685CB4A36
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4576-16-0x0000000000400000-0x000000000056D000-memory.dmp

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