farfli | f44919b3e79a410694b66719e7a048b1eeee220292b76801bd0145d046b2acf5

Analysis

max time kernel
148s
max time network
144s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/11/2026, 23:14

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General

Target
2026-11-09_9bd716bcd86fc865f6a3977c41f8e31b_elex_wannacry.exe
Size 405KB
Sample261109-2772csbc23
SHA256 f44919b3e79a410694b66719e7a048b1eeee220292b76801bd0145d046b2acf5
MD5 9bd716bcd86fc865f6a3977c41f8e31b
SHA1 45b0febf87cf8d992adedb7a0c12c1040a0f5b12
SHA512 f79a9c5e080d6521254983a147d81efb7b26002df6a17a6502d4d177b411c516638875199b6cb7c93359fd914607d06340d1f6f8366eb554b0749eaef873d8b6
SSDEEP 6144:JtecHBTSpjVfs3mCL17O/cvARZZWcStoWwABr8iXpXxr2kDQH/9M:nHBTwjBqbYkvqZMcV7i32ie
TLSH
T1E294CF2332C1C8B7C1D17373FEE2AA72E3F5C2A85D356A7753EA014D1E2744C92562A9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli persistence spyware stealer upx

Malware Config

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli

Detects Farfli Backdoor 6 IoCs

resource	yara_rule
behavioral2/memory/6104-14-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/6104-18-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/6104-16-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/6104-20-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/6104-22-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/6104-25-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 6 IoCs

resource	yara_rule
behavioral2/memory/6104-14-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/6104-18-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/6104-16-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/6104-20-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/6104-22-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/6104-25-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
468	gzonr.exe

Executes dropped EXE 2 IoCs

pid	Process
468	gzonr.exe
6104	ptx.exe

Loads dropped DLL 1 IoCs

pid	Process
6104	ptx.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\DESIME = "c:\\Program Files\\pdisy\\ptx.exe \"c:\\Program Files\\pdisy\\ptxak.dll\",DoPrivacy"	ptx.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\p:	ptx.exe
File opened (read-only)	\??\w:	ptx.exe
File opened (read-only)	\??\x:	ptx.exe
File opened (read-only)	\??\y:	ptx.exe
File opened (read-only)	\??\a:	ptx.exe
File opened (read-only)	\??\g:	ptx.exe
File opened (read-only)	\??\k:	ptx.exe
File opened (read-only)	\??\m:	ptx.exe
File opened (read-only)	\??\s:	ptx.exe
File opened (read-only)	\??\t:	ptx.exe
File opened (read-only)	\??\z:	ptx.exe
File opened (read-only)	\??\b:	ptx.exe
File opened (read-only)	\??\l:	ptx.exe
File opened (read-only)	\??\n:	ptx.exe
File opened (read-only)	\??\r:	ptx.exe
File opened (read-only)	\??\v:	ptx.exe
File opened (read-only)	\??\d:	ptx.exe
File opened (read-only)	\??\i:	ptx.exe
File opened (read-only)	\??\q:	ptx.exe
File opened (read-only)	\??\u:	ptx.exe
File opened (read-only)	\??\h:	ptx.exe
File opened (read-only)	\??\j:	ptx.exe
File opened (read-only)	\??\o:	ptx.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	ptx.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2036-0-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/memory/2036-2-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/files/0x001b00000000696b-3.dat	upx
behavioral2/memory/468-10-0x0000000000400000-0x0000000000499000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\pdisy	gzonr.exe
File created	\??\c:\Program Files\pdisy\ptxak.dll	gzonr.exe
File created	\??\c:\Program Files\pdisy\ptx.exe	gzonr.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3176	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 1 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	ptx.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	2026-11-09_9bd716bcd86fc865f6a3977c41f8e31b_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gzonr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ptx.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3176	cmd.exe
5876	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ptx.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ptx.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5876	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
6104	ptx.exe
6104	ptx.exe
6104	ptx.exe
6104	ptx.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	6104	ptx.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2036	2026-11-09_9bd716bcd86fc865f6a3977c41f8e31b_elex_wannacry.exe
468	gzonr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 3176	2036	2026-11-09_9bd716bcd86fc865f6a3977c41f8e31b_elex_wannacry.exe	88
PID 3176 wrote to memory of 5876	3176	cmd.exe	90
PID 3176 wrote to memory of 468	3176	cmd.exe	91
PID 468 wrote to memory of 6104	468	gzonr.exe	92

C:\Users\Admin\AppData\Local\Temp\2026-11-09_9bd716bcd86fc865f6a3977c41f8e31b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-09_9bd716bcd86fc865f6a3977c41f8e31b_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\gzonr.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-09_9bd716bcd86fc865f6a3977c41f8e31b_elex_wannacry.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3176
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:5876
- - C:\Users\Admin\AppData\Local\Temp\gzonr.exe
    C:\Users\Admin\AppData\Local\Temp\\gzonr.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-09_9bd716bcd86fc865f6a3977c41f8e31b_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:468
  - - \??\c:\Program Files\pdisy\ptx.exe
      "c:\Program Files\pdisy\ptx.exe" "c:\Program Files\pdisy\ptxak.dll",DoPrivacy C:\Users\Admin\AppData\Local\Temp\gzonr.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:6104

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

ptx.exe

Path C:\Program Files\pdisy\ptx.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

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gzonr.exe

Path C:\Users\Admin\AppData\Local\Temp\gzonr.exe
Size 406KB
SHA256 030f59fd17550fac9b9261fa1d7126beb733c753b17c793db10067d728a8a4b5
MD5 47efdc8f9aaba10465f98d1a87a1b9ba
SHA1 407ba88082811b80036c725b3afe57ee1a1795fd
SHA512 7e2b65117d2021d30d945d136faac2724ea3a79998ad12c79dd7c3179edb237c2f18e604ed5b51f9e9dccbe66250a9da13b0bafa355db979ed34cdb2c08f80ba
SSDEEP 6144:JtecHBTSpjVfs3mCL17O/cvARZZWcStoWwABr8iXpXxr2kDQH/9Mf:nHBTwjBqbYkvqZMcV7i32ie6
TLSH
T18B94CF2332C1C8B7C1D17373FEE2AA72E3F5C2A85D356A7753EA014D1E2744C92562A9
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ptxak.dll

Path \??\c:\Program Files\pdisy\ptxak.dll
Size 219KB
SHA256 203982a9a9cebb0360e94e050d525eec29bab453db927312c3d2f15d2a670ced
MD5 173f4e185a7fd85dc9cfe8920dfc2452
SHA1 8f214e7f594a88c0ecc5d8b41772524551181114
SHA512 fd54378d90106fd3e9e28af53c25a2e0b608920f6724fd5fcdb4fc060751471e0d96b4abf1b256919e2e80ba1017f6f6ba3b87d6a4f0ac512c701bc2fc55bbae
SSDEEP 6144:XxDink0qeQKc/A8MNfnX2p2KL5aI3iMKz:XAk9uNfnX2p2Q5aIxa
TLSH
T1282413C4FF52EECEE8610AF03B4FA265DF705C6BC48202C114EE58535A65EA3F696B05
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/468-10-0x0000000000400000-0x0000000000499000-memory.dmp

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memory/2036-0-0x0000000000400000-0x0000000000499000-memory.dmp

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memory/2036-2-0x0000000000400000-0x0000000000499000-memory.dmp

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memory/6104-14-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/6104-19-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

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memory/6104-18-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/6104-16-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/6104-20-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/6104-22-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/6104-25-0x0000000010000000-0x000000001005A000-memory.dmp

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