flyagent | ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7

Analysis

max time kernel
43s
max time network
127s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/10/2026, 11:32

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General

Target
ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe
Size 1.1MB
Sample261002-nnqfbattaz
SHA256 ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7
MD5 7e64504bb157d8b8cd0865d16a9bbbfe
SHA1 842b0c772aeab9024505f3be41cf0082106ef7b8
SHA512 47b8e0f833afd20050c10a1af064b22c8b1cf66762489c38e1f60fef708cf718e0e79c7afa27e91be5f20f6a5c403294c9a2b5c7e0c10990dc2754677aa0734b
SSDEEP 24576:CH0dl8myX9Bg42QoXFkrzkmmlSgRDko0lG4Z8r7Qfbkiu5QX:CcaClSFlG4ZM7QzMG
TLSH
T1F5357C13F692C0F1E61C227124FB6339BE7497450A71CACBE794DD791C32691ABA720E
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 2 IoCs

resource	yara_rule
behavioral2/memory/3372-17-0x0000000000400000-0x0000000000551000-memory.dmp	flyagent
behavioral2/memory/3372-30-0x0000000000400000-0x0000000000551000-memory.dmp	flyagent

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

execution

Visual Basic

T1059.005

pid	Process
5460	WScript.exe
1924	WScript.exe

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

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	WScript.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	WScript.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	WScript.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	WScript.exe

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	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.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-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe
3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe
3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe
3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe
3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe
3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe
3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 5460	3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe	90
PID 3372 wrote to memory of 1924	3372	ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe	89

C:\Users\Admin\AppData\Local\Temp\ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.exe
"C:\Users\Admin\AppData\Local\Temp\ca44187042afcd7bdd097e434b2336c8335c66ee5484d786bbc5d90563796dd7.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:3372
- 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.
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  PID:1924
- 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.
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  PID:5460

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

System Network Configuration Discovery

T1016

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 0de92cc053b81bb74958f6c0d87b72bbf4e56132df3494d946b46db5db3f3c6c
MD5 57b93056f5ccadd37e73b45a3f3396d0
SHA1 ccd755ee01f83cc46de04c0898cd3c4385a31788
SHA512 63059bf43a0b444ea68ff8876c74a0ca505fc94a416655ce536b62bcfbfa1ea552173fbbfae291bd2e15a161df8623fdcbbc9a3f665d4c9c50e0b2978794e344
TLSH
T1A0014400DD4CC22D513453B22532E40EF3A91943B3039CE47889D1612F70318AC70E32
MD5 SHA1 SHA512 TLSH

Submit Download

memory/3372-17-0x0000000000400000-0x0000000000551000-memory.dmp

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memory/3372-30-0x0000000000400000-0x0000000000551000-memory.dmp

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