farfli | b8ead132165e4f5bf125143457e76a5605b1b80bf0a282ef2a361692059c27e7

General

Target
2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe
Size 416KB
Sample260810-e2paqs1dmc
SHA256 b8ead132165e4f5bf125143457e76a5605b1b80bf0a282ef2a361692059c27e7
MD5 8e5628ffd0f1e7eb8c38dbb93b6a784f
SHA1 52929849079424b6b83f9a126b416bafe508b66b
SHA512 30fac11c4a5f3593cd12cf8ce8aab6c70869e2b773b5e7d591a3ccebbb3d7508b3a8c81f5ece1ff144e717fc432d4b1d4a5ac7a50744d8b950e4cadd0c6887c1
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T1A694D02272D0CBA3C0856472CE66E63CD3E5CC689D705E3373E9FA5DEA36941423A275
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli persistence spyware stealer

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/4812-7-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral1/memory/4812-9-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral1/memory/4812-11-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/4812-7-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4812-9-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4812-11-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000242fc-2.dat	UPX

Badlisted process makes network request 4 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
3	4812	rundll32.exe
17	4812	rundll32.exe
18	4812	rundll32.exe
36	4812	rundll32.exe

Deletes itself 1 IoCs

pid	Process
4668	rpysjgq.exe

Executes dropped EXE 1 IoCs

pid	Process
4668	rpysjgq.exe

Loads dropped DLL 1 IoCs

pid	Process
4812	rundll32.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-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\prdhqhn\\qvofh.dll\",InitEngine"	rundll32.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)	\??\o:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.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	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\prdhqhn	rpysjgq.exe
File created	\??\c:\Program Files\prdhqhn\qvofh.dll	rpysjgq.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
4960	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_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	rpysjgq.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
4068	PING.EXE
4960	cmd.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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4068	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4812	rundll32.exe
4812	rundll32.exe
4812	rundll32.exe
4812	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4812	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3092	2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe
4668	rpysjgq.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 4960	3092	2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe	86
PID 4960 wrote to memory of 4068	4960	cmd.exe	88
PID 4960 wrote to memory of 4668	4960	cmd.exe	89
PID 4668 wrote to memory of 4812	4668	rpysjgq.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\rpysjgq.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_coinminer_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:4960
- - 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:4068
- - C:\Users\Admin\AppData\Local\Temp\rpysjgq.exe
    C:\Users\Admin\AppData\Local\Temp\\rpysjgq.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_8e5628ffd0f1e7eb8c38dbb93b6a784f_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:4668
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\prdhqhn\qvofh.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\rpysjgq.exe
      4⤵
      Badlisted process makes network request
      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:4812

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

rpysjgq.exe

Path C:\Users\Admin\AppData\Local\Temp\rpysjgq.exe
Size 417KB
SHA256 aef4033d3f33e30f95d808e7372591561448c9eaee13ca32e164c42b80ad8709
MD5 8b437d3d3fdb253aa464085153b9edb9
SHA1 103578e1274fee23c0aa8f6f5e7d8afe9e362fe4
SHA512 ab22e4265ea2e0729edd9733d279ebf6bb57821d40f1e0607348bc5ed37d7144077a9b5d658ea241e538f96a3d5dd8480d6ee075bd2ffd2c111a41a6cc023125
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T1DD94D02272D0CBA3C0856472CE66E63CD3E5CC689D705E3373E9FA5DEA36941423A275
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

qvofh.dll

Path \??\c:\Program Files\prdhqhn\qvofh.dll
Size 176KB
SHA256 44a5f37de145ff73f3efb0a1a6da9165f8b267d20148a043f7939564cd401591
MD5 adaba355e773fe7462971eb4d55542ab
SHA1 a0523c958a85c381146493a7e3cd99ad3da282a5
SHA512 018bd02d5c7706cf7d78eba5d7bf7696f904f32f9392d1a56b7a3e378f7a4b1af6984e93c307ae2fdd7f928617b1f01a70f0a98e04fe2de83658c351cbd1acce
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFooch:1Jv2tOItshGYdMnYYVjasKbOWSFofh
TLSH
T126041261866D1C34D087B7717B05920DF6B452A490B9CB93F7B8AF2B3D12AEA805E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4812-7-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/4812-10-0x000000001005A000-0x000000001005B000-memory.dmp

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memory/4812-9-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/4812-11-0x0000000010000000-0x0000000010067000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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