farfli | d4e1caf031104433b2206f24ec0567186f7db44be0aef3bed6d1a67440605999

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
11/05/2026, 03:11

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General

Target
2026-05-11_e49ea4eb7fa2701797fa216a57f9882a_coinminer_elex_wannacry.exe
Size 284KB
Sample260511-dp184aay2t
SHA256 d4e1caf031104433b2206f24ec0567186f7db44be0aef3bed6d1a67440605999
MD5 e49ea4eb7fa2701797fa216a57f9882a
SHA1 bd09fc4c348786043174ec74e3c517d402f75a5e
SHA512 133236d5e006130c34e3b81e3a0946f8d0340efbe407fe6df3ac79593950c06363d367fffed305ed12d173e5ab94f7fa668c6930f745a8802149778d158276a4
SSDEEP 3072:qtaoOzbY5l/Tx1DUDcbouGYefD5h1zZCBgb3EInA3rdCKA9bwpfMrgsAHuskkycS:qtatPE5Txvev1zQBgexOdw6rpI9Fs29
TLSH
T100547C1233E44869E4EA3E32CE76A630D7FAE9759C33D66F03D4430E5A36A04CB55366
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 2 IoCs

resource	yara_rule
behavioral1/memory/5832-16-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli
behavioral1/memory/5832-20-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral1/memory/5832-16-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/5832-20-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 8 IoCs

resource	yara_rule
behavioral1/memory/2728-0-0x0000000000400000-0x000000000043F000-memory.dmp	UPX
behavioral1/memory/2728-2-0x0000000000400000-0x000000000043F000-memory.dmp	UPX
behavioral1/files/0x0008000000024421-4.dat	UPX
behavioral1/files/0x0008000000024423-10.dat	UPX
behavioral1/memory/5832-14-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral1/memory/1624-11-0x0000000000400000-0x000000000043F000-memory.dmp	UPX
behavioral1/memory/5832-16-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral1/memory/5832-20-0x0000000010000000-0x0000000010038000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
1624	edyqh.exe

Executes dropped EXE 2 IoCs

pid	Process
1624	edyqh.exe
5832	owttf.exe

Loads dropped DLL 1 IoCs

pid	Process
5832	owttf.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-1-5-21-312252282-3884318443-358092420-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Vicity = "c:\\Program Files\\yrvrayaum\\owttf.exe \"c:\\Program Files\\yrvrayaum\\owttf.dll\",Group"	owttf.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)	\??\n:	owttf.exe
File opened (read-only)	\??\x:	owttf.exe
File opened (read-only)	\??\z:	owttf.exe
File opened (read-only)	\??\a:	owttf.exe
File opened (read-only)	\??\e:	owttf.exe
File opened (read-only)	\??\h:	owttf.exe
File opened (read-only)	\??\o:	owttf.exe
File opened (read-only)	\??\q:	owttf.exe
File opened (read-only)	\??\y:	owttf.exe
File opened (read-only)	\??\b:	owttf.exe
File opened (read-only)	\??\p:	owttf.exe
File opened (read-only)	\??\s:	owttf.exe
File opened (read-only)	\??\t:	owttf.exe
File opened (read-only)	\??\u:	owttf.exe
File opened (read-only)	\??\w:	owttf.exe
File opened (read-only)	\??\g:	owttf.exe
File opened (read-only)	\??\i:	owttf.exe
File opened (read-only)	\??\j:	owttf.exe
File opened (read-only)	\??\k:	owttf.exe
File opened (read-only)	\??\l:	owttf.exe
File opened (read-only)	\??\m:	owttf.exe
File opened (read-only)	\??\r:	owttf.exe
File opened (read-only)	\??\v:	owttf.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	owttf.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000024423-10.dat	upx
behavioral1/memory/5832-14-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral1/memory/5832-16-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral1/memory/5832-20-0x0000000010000000-0x0000000010038000-memory.dmp	upx

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\yrvrayaum	edyqh.exe
File created	\??\c:\Program Files\yrvrayaum\owttf.dll	edyqh.exe
File created	\??\c:\Program Files\yrvrayaum\owttf.exe	edyqh.exe
File opened for modification	\??\c:\Program Files\yrvrayaum\owttf.exe	edyqh.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	owttf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-05-11_e49ea4eb7fa2701797fa216a57f9882a_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	edyqh.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
1340	cmd.exe
2328	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	owttf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	owttf.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2328	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5832	owttf.exe
5832	owttf.exe
5832	owttf.exe
5832	owttf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5832	owttf.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2728	2026-05-11_e49ea4eb7fa2701797fa216a57f9882a_coinminer_elex_wannacry.exe
1624	edyqh.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 1340	2728	2026-05-11_e49ea4eb7fa2701797fa216a57f9882a_coinminer_elex_wannacry.exe	84
PID 1340 wrote to memory of 2328	1340	cmd.exe	86
PID 1340 wrote to memory of 1624	1340	cmd.exe	87
PID 1624 wrote to memory of 5832	1624	edyqh.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-05-11_e49ea4eb7fa2701797fa216a57f9882a_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-11_e49ea4eb7fa2701797fa216a57f9882a_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\edyqh.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-11_e49ea4eb7fa2701797fa216a57f9882a_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1340
- - 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:2328
- - C:\Users\Admin\AppData\Local\Temp\edyqh.exe
    C:\Users\Admin\AppData\Local\Temp\\edyqh.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-11_e49ea4eb7fa2701797fa216a57f9882a_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:1624
  - - \??\c:\Program Files\yrvrayaum\owttf.exe
      "c:\Program Files\yrvrayaum\owttf.exe" "c:\Program Files\yrvrayaum\owttf.dll",Group C:\Users\Admin\AppData\Local\Temp\edyqh.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:5832

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

edyqh.exe

Path C:\Users\Admin\AppData\Local\Temp\edyqh.exe
Size 284KB
SHA256 7707a9272873ed1cd64c4543cf11bf71e452cab0f1a427065d1d0861250903b4
MD5 3e11bfabbd886946fb4ad122154d493b
SHA1 cbaea56810862d0171b7bda323b43b22b2a028ce
SHA512 fa9d39b4ce69b4adef18c0b35b28eecd6a10132d7915a64948f7c6298b433ee3c32cb557d9bc2978e7165766924ccd1b5e62a3c1e714f8a8485aaa8c94a92996
SSDEEP 3072:qtaoOzbY5l/Tx1DUDcbouGYefD5h1zZCBgb3EInA3rdCKA9bwpfMrgsAHuskkycf:qtatPE5Txvev1zQBgexOdw6rpI9Fs29r
TLSH
T129547C1233E44869E4EA3E32CE76A630D7FAE9759C33D66F03D4430E5A36A04CB55366
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

owttf.dll

Path \??\c:\Program Files\yrvrayaum\owttf.dll
Size 97KB
SHA256 1b33de017968429aac6d244e0c59e80a5fb7a2c77ee0d5920537f72058257193
MD5 653f17eac7fad12b2149b2447a1fcd15
SHA1 15786c19689427ac56936afae96b1c1f92ff1bd4
SHA512 bc9820443f09a9e9ed7fef16c2070bc6d797e2ffb543b0d953a40ecfc5d4495b420a73cd763a9b97ef6367c3c8ae3bf4f62ca1b458a35da7a559f44b9283f679
SSDEEP 3072:BDpG6gzgHr5tCmfk455ecDBkdq+SStvAbGF:5pG6Sg9txRk/SS6bGF
TLSH
T10CA301FA290D7DD6CB394839D6528E35F629EE348C589F887ECE6C13ACB8510E1641B1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

owttf.exe

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

Submit Download

memory/1624-11-0x0000000000400000-0x000000000043F000-memory.dmp

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memory/2728-0-0x0000000000400000-0x000000000043F000-memory.dmp

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memory/2728-2-0x0000000000400000-0x000000000043F000-memory.dmp

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memory/5832-14-0x0000000010000000-0x0000000010038000-memory.dmp

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memory/5832-16-0x0000000010000000-0x0000000010038000-memory.dmp

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memory/5832-20-0x0000000010000000-0x0000000010038000-memory.dmp

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