flyagent | 970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88

Analysis

max time kernel
126s
max time network
116s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
19/04/2026, 20:54

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General

Target
970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe
Size 1.3MB
Sample260419-zqcssae19t
SHA256 970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88
MD5 fa1281bd2fbdd13b6d8a0c9e5c8b382f
SHA1 8080a548dccbfc13f1e2eaea8677148eac50c5f9
SHA512 9ab5a78193fe4b97299d4ea05b2bd00059e231057f9b2b3c5f7a164c2cd30dd3d8e8f88706f780e103fed159cecaa5ed1bc6a06a2d7b2f6e3a47a33c5bdde041
SSDEEP 24576:WBS9qQEK6QywlBqH82QoXFkrzkmmlSgRDko0lG4Z8r7Qfd7iu5K:WZaClSFlG4ZM7QlVs
TLSH
T1F4557C13F692C0F1E61C227124FB6339BE7497450A71CACBE794DD791C32691ABA720E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery flyagent

Malware Config

Signatures

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

Detects FlyAgent Backdoor 2 IoCs

resource	yara_rule
behavioral2/memory/3344-10-0x0000000000400000-0x0000000000551000-memory.dmp	flyagent
behavioral2/memory/3344-12-0x0000000000400000-0x0000000000551000-memory.dmp	flyagent

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	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.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-1-5-21-2397528088-2630719772-1129911217-1000_Classes\Local Settings	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3344	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe
3344	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe
3344	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe
3344	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3344	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3344	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe
3344	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3344 wrote to memory of 5104	3344	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe	80
PID 3344 wrote to memory of 5060	3344	970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe	79

C:\Users\Admin\AppData\Local\Temp\970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.exe
"C:\Users\Admin\AppData\Local\Temp\970f98cee465317148f39d0e49d66594fc0545fe6ffa370e50237955d243eb88.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:3344
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5060
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5104

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

Replay Monitor

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Downloads

VBS3.vbs

Path C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs
Size 753B
SHA256 2697b152733c8304f256ab4d2d93f325971ea42f72005bb5b918e98ae983f943
MD5 ba01b63486906108cbf3fc90970f7be8
SHA1 f0975478a43e271bae0345745ee73be5e2f1531e
SHA512 0a3127d6ee99760912c552ac45acef2d10e02b5b28a60591c4b23694094d47f050cea2b6df4a5242f27efafecaf248a0f6fc56a2bae1653c1b60ff053e4ffeb2
TLSH
T1B701CB10DD8C825C603563B72533E44EF7AA1913A303ACE8B895D0652FB0A689CB8E37
MD5 SHA1 SHA512 TLSH

Submit Download

memory/3344-10-0x0000000000400000-0x0000000000551000-memory.dmp

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memory/3344-11-0x0000000000C20000-0x0000000000D32000-memory.dmp

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memory/3344-12-0x0000000000400000-0x0000000000551000-memory.dmp

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memory/3344-17-0x0000000000C20000-0x0000000000D32000-memory.dmp

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memory/3344-38-0x0000000000C20000-0x0000000000D32000-memory.dmp

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