farfli | 11a757915312e6fd8a0f9b9b87492959a239be5f7395e0e3d42ba4d3434ddf0f

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
21/04/2026, 22:40

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General

Target
2026-04-21_f626ba4e982ead6a7c7d5d2685f4b9c8_coinminer_elex_wannacry.exe
Size 289KB
Sample260421-2lpb5ads6m
SHA256 11a757915312e6fd8a0f9b9b87492959a239be5f7395e0e3d42ba4d3434ddf0f
MD5 f626ba4e982ead6a7c7d5d2685f4b9c8
SHA1 66d48c64dcd18ee643c8929422009b3b034d7b82
SHA512 8a3ed519b3104906fc0f81662210322584ac44e14d5099b05dbae76e76aa2299ba38637f2625f7b023dd2af91936e17f92e1a7f054fee9b0b52935da4bc90b48
SSDEEP 3072:qtaoOzbY5l/Tx1DUDcbouGYefD5h1zZCBgb3EInA3rdCKA9bwpfMrgsAHuskkycP:qtatPE5Txvev1zQBgexOdw6rpI9Fs29
TLSH
T1F4547C1233E44869E4EA3E72CE76A630D7FAE875AC33D67B03D4430D5A36A04CB55366
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli persistence spyware stealer upx

Malware Config

Signatures

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

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral1/memory/4284-14-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli
behavioral1/memory/4284-16-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli
behavioral1/memory/4284-19-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/4284-14-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4284-16-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4284-19-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Custom signature

UPX dump on OEP (original entry point) 8 IoCs

resource	yara_rule
behavioral1/memory/680-0-0x0000000000400000-0x000000000043F000-memory.dmp	UPX
behavioral1/memory/680-2-0x0000000000400000-0x000000000043F000-memory.dmp	UPX
behavioral1/files/0x000600000001e423-4.dat	UPX
behavioral1/files/0x0009000000024396-10.dat	UPX
behavioral1/memory/3212-11-0x0000000000400000-0x000000000043F000-memory.dmp	UPX
behavioral1/memory/4284-14-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral1/memory/4284-16-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral1/memory/4284-19-0x0000000010000000-0x0000000010038000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
3212	awurlqw.exe

Executes dropped EXE 2 IoCs

pid	Process
3212	awurlqw.exe
4284	lwtya.exe

Loads dropped DLL 1 IoCs

pid	Process
4284	lwtya.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-1-5-21-745935970-1373868228-562466063-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Vicity = "c:\\Program Files\\inklldx\\lwtya.exe \"c:\\Program Files\\inklldx\\lwtya.dll\",Group"	lwtya.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:	lwtya.exe
File opened (read-only)	\??\q:	lwtya.exe
File opened (read-only)	\??\u:	lwtya.exe
File opened (read-only)	\??\a:	lwtya.exe
File opened (read-only)	\??\b:	lwtya.exe
File opened (read-only)	\??\h:	lwtya.exe
File opened (read-only)	\??\k:	lwtya.exe
File opened (read-only)	\??\m:	lwtya.exe
File opened (read-only)	\??\y:	lwtya.exe
File opened (read-only)	\??\s:	lwtya.exe
File opened (read-only)	\??\z:	lwtya.exe
File opened (read-only)	\??\i:	lwtya.exe
File opened (read-only)	\??\n:	lwtya.exe
File opened (read-only)	\??\r:	lwtya.exe
File opened (read-only)	\??\t:	lwtya.exe
File opened (read-only)	\??\v:	lwtya.exe
File opened (read-only)	\??\w:	lwtya.exe
File opened (read-only)	\??\x:	lwtya.exe
File opened (read-only)	\??\e:	lwtya.exe
File opened (read-only)	\??\g:	lwtya.exe
File opened (read-only)	\??\j:	lwtya.exe
File opened (read-only)	\??\l:	lwtya.exe
File opened (read-only)	\??\o:	lwtya.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	lwtya.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0009000000024396-10.dat	upx
behavioral1/memory/4284-14-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral1/memory/4284-16-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral1/memory/4284-19-0x0000000010000000-0x0000000010038000-memory.dmp	upx

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\inklldx	awurlqw.exe
File created	\??\c:\Program Files\inklldx\lwtya.dll	awurlqw.exe
File created	\??\c:\Program Files\inklldx\lwtya.exe	awurlqw.exe
File opened for modification	\??\c:\Program Files\inklldx\lwtya.exe	awurlqw.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	2026-04-21_f626ba4e982ead6a7c7d5d2685f4b9c8_coinminer_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	awurlqw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lwtya.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
5000	cmd.exe
4836	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	lwtya.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	lwtya.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4836	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4284	lwtya.exe
4284	lwtya.exe
4284	lwtya.exe
4284	lwtya.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4284	lwtya.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
680	2026-04-21_f626ba4e982ead6a7c7d5d2685f4b9c8_coinminer_elex_wannacry.exe
3212	awurlqw.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 680 wrote to memory of 5000	680	2026-04-21_f626ba4e982ead6a7c7d5d2685f4b9c8_coinminer_elex_wannacry.exe	86
PID 5000 wrote to memory of 4836	5000	cmd.exe	88
PID 5000 wrote to memory of 3212	5000	cmd.exe	89
PID 3212 wrote to memory of 4284	3212	awurlqw.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-04-21_f626ba4e982ead6a7c7d5d2685f4b9c8_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-21_f626ba4e982ead6a7c7d5d2685f4b9c8_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:680
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\awurlqw.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-21_f626ba4e982ead6a7c7d5d2685f4b9c8_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5000
- - 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:4836
- - C:\Users\Admin\AppData\Local\Temp\awurlqw.exe
    C:\Users\Admin\AppData\Local\Temp\\awurlqw.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-21_f626ba4e982ead6a7c7d5d2685f4b9c8_coinminer_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:3212
  - - \??\c:\Program Files\inklldx\lwtya.exe
      "c:\Program Files\inklldx\lwtya.exe" "c:\Program Files\inklldx\lwtya.dll",Group C:\Users\Admin\AppData\Local\Temp\awurlqw.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:4284

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

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

Replay Monitor

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Downloads

lwtya.exe

Path C:\Program Files\inklldx\lwtya.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

awurlqw.exe

Path C:\Users\Admin\AppData\Local\Temp\awurlqw.exe
Size 289KB
SHA256 b64c0f10c13e2c973216543c7527ef172787624747ab2d20d1329d583095d633
MD5 f83f145a12ca689577205da9c980db9e
SHA1 776335358df507f3ea5f81a8c5f775b7e958bec7
SHA512 bcff63a6e57b2103e63de4ac1ac2aecce3c5f27dfe09f181ae6197c2d46bfc04a741af48d5ed33e78d96441a2a7ff8a71e66eb429b98e68065c219aa175900f4
SSDEEP 3072:qtaoOzbY5l/Tx1DUDcbouGYefD5h1zZCBgb3EInA3rdCKA9bwpfMrgsAHuskkycP:qtatPE5Txvev1zQBgexOdw6rpI9Fs29
TLSH
T1BF547C1233E44869E4EA3E72CE76A630D7FAE875AC33D67B03D4430D5A36A04CB55366
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

lwtya.dll

Path \??\c:\Program Files\inklldx\lwtya.dll
Size 97KB
SHA256 842f20f0f0ed3ab3e5fb20c5d5e34e7dde29591909eaaf8302e3c98135da48f3
MD5 6d3e368dbc1d9ae3404193292a7032a9
SHA1 71c5eab86bdd853def53604128df05fc2352410e
SHA512 ee5b02d483d1678ab073e36f62e76a0fc7d990d0f0dd190fd09b2877c57f4f0d87d9643798ac533fd0bdfdd53faa09b2ccf1865306cb63c8b323dc4949045456
SSDEEP 3072:BDpG6gzgHr5tCmfk455ecDBkdq+SStvAbGJ:5pG6Sg9txRk/SS6bGJ
TLSH
T1C3A301F6290D7DD6CB354839D6528E35FA29EE348C589F887ECE7C13ACB8510E1641B1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/680-0-0x0000000000400000-0x000000000043F000-memory.dmp

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memory/680-2-0x0000000000400000-0x000000000043F000-memory.dmp

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memory/3212-11-0x0000000000400000-0x000000000043F000-memory.dmp

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memory/4284-14-0x0000000010000000-0x0000000010038000-memory.dmp

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memory/4284-16-0x0000000010000000-0x0000000010038000-memory.dmp

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memory/4284-19-0x0000000010000000-0x0000000010038000-memory.dmp

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