farfli | 94e63e214be043320cd9ab420c507c05953c7b1a489c388ec38b557387dfd1d3

Analysis

max time kernel
148s
max time network
137s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
24/09/2026, 22:48

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General

Target
2026-09-24_c8eef54ad8267f16c10f464834cbc1c8_elex_wannacry.exe
Size 404KB
Sample260924-2ra2payvbx
SHA256 94e63e214be043320cd9ab420c507c05953c7b1a489c388ec38b557387dfd1d3
MD5 c8eef54ad8267f16c10f464834cbc1c8
SHA1 de89f5d1895a45eccd70af903b32e4ad850d575a
SHA512 dfe2c7cc2b1d40a04953296670af245ca2be4dd8f903bc7c4a3d70faa49f47f96b39e88f535ee4e212a507e4e1b3db7c170c8e44e6975181ef69b0303306474f
SSDEEP 6144:JtecHBTSpjVfs3mCL17O/cvARZZWcStoWwABr8iXpXxr2kDQH/9M1:nHBTwjBqbYkvqZMcV7i32iew
TLSH
T18F94DF2332C1C8B7C1D17373FEE2AA72E3F5C2A85D356A7753EA014D1E2744C92562A9
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/4244-14-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/4244-12-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/4244-10-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/4244-17-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/4244-19-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli
behavioral2/memory/4244-22-0x0000000010000000-0x000000001005A000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 6 IoCs

resource	yara_rule
behavioral2/memory/4244-14-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4244-12-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4244-10-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4244-17-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4244-19-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4244-22-0x0000000010000000-0x000000001005A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
3240	qerxojh.exe

Executes dropped EXE 2 IoCs

pid	Process
3240	qerxojh.exe
4244	rtqi.exe

Loads dropped DLL 1 IoCs

pid	Process
4244	rtqi.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-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Windows\CurrentVersion\Run\DESIME = "c:\\Program Files\\xyedchor\\rtqi.exe \"c:\\Program Files\\xyedchor\\rtqir.dll\",DoPrivacy"	rtqi.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)	\??\i:	rtqi.exe
File opened (read-only)	\??\j:	rtqi.exe
File opened (read-only)	\??\m:	rtqi.exe
File opened (read-only)	\??\u:	rtqi.exe
File opened (read-only)	\??\x:	rtqi.exe
File opened (read-only)	\??\y:	rtqi.exe
File opened (read-only)	\??\a:	rtqi.exe
File opened (read-only)	\??\d:	rtqi.exe
File opened (read-only)	\??\g:	rtqi.exe
File opened (read-only)	\??\q:	rtqi.exe
File opened (read-only)	\??\r:	rtqi.exe
File opened (read-only)	\??\v:	rtqi.exe
File opened (read-only)	\??\p:	rtqi.exe
File opened (read-only)	\??\h:	rtqi.exe
File opened (read-only)	\??\k:	rtqi.exe
File opened (read-only)	\??\l:	rtqi.exe
File opened (read-only)	\??\n:	rtqi.exe
File opened (read-only)	\??\o:	rtqi.exe
File opened (read-only)	\??\b:	rtqi.exe
File opened (read-only)	\??\s:	rtqi.exe
File opened (read-only)	\??\t:	rtqi.exe
File opened (read-only)	\??\w:	rtqi.exe
File opened (read-only)	\??\z:	rtqi.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	rtqi.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3196-0-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/memory/3196-2-0x0000000000400000-0x0000000000499000-memory.dmp	upx
behavioral2/files/0x000600000001b85a-3.dat	upx
behavioral2/memory/3240-8-0x0000000000400000-0x0000000000499000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\xyedchor	qerxojh.exe
File created	\??\c:\Program Files\xyedchor\rtqir.dll	qerxojh.exe
File created	\??\c:\Program Files\xyedchor\rtqi.exe	qerxojh.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
5088	cmd.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	2026-09-24_c8eef54ad8267f16c10f464834cbc1c8_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	qerxojh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rtqi.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
5088	cmd.exe
3904	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	rtqi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rtqi.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3904	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4244	rtqi.exe
4244	rtqi.exe
4244	rtqi.exe
4244	rtqi.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4244	rtqi.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3196	2026-09-24_c8eef54ad8267f16c10f464834cbc1c8_elex_wannacry.exe
3240	qerxojh.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 5088	3196	2026-09-24_c8eef54ad8267f16c10f464834cbc1c8_elex_wannacry.exe	89
PID 5088 wrote to memory of 3904	5088	cmd.exe	91
PID 5088 wrote to memory of 3240	5088	cmd.exe	92
PID 3240 wrote to memory of 4244	3240	qerxojh.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-09-24_c8eef54ad8267f16c10f464834cbc1c8_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-24_c8eef54ad8267f16c10f464834cbc1c8_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qerxojh.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-24_c8eef54ad8267f16c10f464834cbc1c8_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:5088
- - 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:3904
- - C:\Users\Admin\AppData\Local\Temp\qerxojh.exe
    C:\Users\Admin\AppData\Local\Temp\\qerxojh.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-24_c8eef54ad8267f16c10f464834cbc1c8_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:3240
  - - \??\c:\Program Files\xyedchor\rtqi.exe
      "c:\Program Files\xyedchor\rtqi.exe" "c:\Program Files\xyedchor\rtqir.dll",DoPrivacy C:\Users\Admin\AppData\Local\Temp\qerxojh.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4244

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

rtqi.exe

Path C:\Program Files\xyedchor\rtqi.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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qerxojh.exe

Path C:\Users\Admin\AppData\Local\Temp\qerxojh.exe
Size 404KB
SHA256 f90617fa9216e12a4fda3e5d5e92217f08ee52e670b124b4b4d44c0201dceb90
MD5 ff1170ef5f9d716dcaf77244027b2d97
SHA1 ccbb74e5cbc11e96375f1aa89bbc4de73502c253
SHA512 c55ffd46af3b2038bdfdbe5aa952b60186ade0665caa2cc84d14dd6998e3e717fdc849f55912d7e06b3d52a804e43b437a3b8d4080f8a9f69e49dc3866843dc7
SSDEEP 6144:JtecHBTSpjVfs3mCL17O/cvARZZWcStoWwABr8iXpXxr2kDQH/9MZ:nHBTwjBqbYkvqZMcV7i32ie+
TLSH
T10994DF2332C1C8B7C1D17373FEE2AA72E3F5C2A85D356A7753EA014D1E2744C92562A9
MD5 SHA1 SHA512 SSDEEP TLSH

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rtqir.dll

Path \??\c:\Program Files\xyedchor\rtqir.dll
Size 219KB
SHA256 710d7beb4e735015a41555e78946c8ea94b34a7cafdcb38f74aba11a1a938d91
MD5 d53f77a378f6f4b461d64800cf31d25c
SHA1 730800f9875b6e12dd1e494242c5f4fdfeeed665
SHA512 45485c7b5341af2f5219c96aa96ec5edc953b9dc0b65d898e9aec2f3098807ce86c7a61faea9b42aadb357ad578938805e446c1b491ef2abd0368de10798a282
SSDEEP 6144:XxDink0qeQKc/A8MNfnX2p2KL5aI3iMKf:XAk9uNfnX2p2Q5aIxG
TLSH
T12B2413C4FF52EECEE8610AF03B4FA269DF715C6BC48202C114EA58535A65EA3F696701
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3196-0-0x0000000000400000-0x0000000000499000-memory.dmp

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memory/3196-2-0x0000000000400000-0x0000000000499000-memory.dmp

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memory/3240-8-0x0000000000400000-0x0000000000499000-memory.dmp

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memory/4244-11-0x0000000000930000-0x0000000000931000-memory.dmp

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memory/4244-14-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/4244-12-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/4244-10-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/4244-16-0x0000000000930000-0x0000000000931000-memory.dmp

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memory/4244-17-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/4244-19-0x0000000010000000-0x000000001005A000-memory.dmp

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memory/4244-22-0x0000000010000000-0x000000001005A000-memory.dmp

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