farfli | da990792ba9ddccd81d22ffed10faaaecf8aa611e5f31cc36c7d81d1e4c9f479

General

Target
2026-08-31_d2a025fa358921decfe3d9b4d5997911_coinminer_elex_wannacry.exe
Size 421KB
Sample260831-rnfsnatdkd
SHA256 da990792ba9ddccd81d22ffed10faaaecf8aa611e5f31cc36c7d81d1e4c9f479
MD5 d2a025fa358921decfe3d9b4d5997911
SHA1 f9fafb5c1574d56a22e4a11398f90c62699fe629
SHA512 f7773479d0e61a4411287ace82bbd03d46c2b02ec34c543d7bc3ca89c5015ea495bd753371a112bd9f1da22186e526547e6e65779cbf50eea5dd7cb9e796ffe1
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T17494D02272D0CBA3D0856472CE66E63CD3E5CC689D705E3773E9F65EEA36901423A274
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/1208-7-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral1/memory/1208-9-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral1/memory/1208-11-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/1208-7-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1208-9-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1208-11-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000242cd-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	1208	rundll32.exe
15	1208	rundll32.exe
16	1208	rundll32.exe
37	1208	rundll32.exe

Deletes itself 1 IoCs

pid	Process
804	rciqlyz.exe

Executes dropped EXE 1 IoCs

pid	Process
804	rciqlyz.exe

Loads dropped DLL 1 IoCs

pid	Process
1208	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-1-5-21-1788976790-1541110888-1636651838-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\dhlhw\\uijzenlvv.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)	\??\p:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\i:	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 created	\??\c:\Program Files\dhlhw\uijzenlvv.dll	rciqlyz.exe
File opened for modification	\??\c:\Program Files\dhlhw	rciqlyz.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
2192	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	2026-08-31_d2a025fa358921decfe3d9b4d5997911_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	rciqlyz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
2192	cmd.exe
2884	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	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
2884	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1208	rundll32.exe
1208	rundll32.exe
1208	rundll32.exe
1208	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1208	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3464	2026-08-31_d2a025fa358921decfe3d9b4d5997911_coinminer_elex_wannacry.exe
804	rciqlyz.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3464 wrote to memory of 2192	3464	2026-08-31_d2a025fa358921decfe3d9b4d5997911_coinminer_elex_wannacry.exe	87
PID 2192 wrote to memory of 2884	2192	cmd.exe	89
PID 2192 wrote to memory of 804	2192	cmd.exe	90
PID 804 wrote to memory of 1208	804	rciqlyz.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-08-31_d2a025fa358921decfe3d9b4d5997911_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-31_d2a025fa358921decfe3d9b4d5997911_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3464
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\rciqlyz.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-31_d2a025fa358921decfe3d9b4d5997911_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:2192
- - 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:2884
- - C:\Users\Admin\AppData\Local\Temp\rciqlyz.exe
    C:\Users\Admin\AppData\Local\Temp\\rciqlyz.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-31_d2a025fa358921decfe3d9b4d5997911_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:804
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\dhlhw\uijzenlvv.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\rciqlyz.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:1208

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

rciqlyz.exe

Path C:\Users\Admin\AppData\Local\Temp\rciqlyz.exe
Size 422KB
SHA256 d218f31e0b18a141e0ca7efd9c7a4f7bd5d31369481dd6528a09c44947eeeb96
MD5 8c32e22a6c1310521c861d7a11adda2e
SHA1 f8a49026837169ab1cf9b2f575f8710226a2db19
SHA512 b50a32707dc09b979e201dac95ff2f3efb1edd325584d5717f6490e5f6bfdd219962900f62710d6010def70f6fb28bac58f912bff370dbcfd4baace487be5062
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6LC:jGmTju+mMC4ITJE8dfSJ/F62
TLSH
T1FD94D02272D0CBA3D0856472CE66E63CD3E5CC689D705E3773E9F65EEA36901423A274
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

uijzenlvv.dll

Path \??\c:\Program Files\dhlhw\uijzenlvv.dll
Size 176KB
SHA256 13ffb417a5ce68ab80e378aa9b8f87220e999f267760373ff42427561cf47834
MD5 92bf742e635e71cb3ac0e4edddc570ec
SHA1 f54bafaab9eb93771919cf1e43a232421a4d85f0
SHA512 d571229a495a58d438dff2790eea0385187bfa30308f5d1d52b9c92f93ea05e6ea6f7812f317b23feba6e5da6848c87c8d1831d45f520f3ecdaa53d84791e3b4
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocr:1Jv2tOItshGYdMnYYVjasKbOWSFofr
TLSH
T1B0041261862D1C34D087B7717B05920DFAB452A49079CBD3F6B8AF2B3D12AEA805E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1208-7-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/1208-10-0x000000001005A000-0x000000001005B000-memory.dmp

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memory/1208-9-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/1208-11-0x0000000010000000-0x0000000010067000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads