farfli | e4167dee1c0b67f8b3a73edb22540878acaa20370bf5123e6892e4e47ef039f4

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
14/11/2026, 15:01

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General

Target
2026-11-13_42f4f1e04fa4092c0f982778eed3a67c_coinminer_elex_wannacry.exe
Size 303KB
Sample261114-sdznfs1w5k
SHA256 e4167dee1c0b67f8b3a73edb22540878acaa20370bf5123e6892e4e47ef039f4
MD5 42f4f1e04fa4092c0f982778eed3a67c
SHA1 89d06a206c41191425a37ee7e298cba31cbe9ee5
SHA512 07b58eb1f621edbe0413f4b431876ed78a1a937752fdc4ce777e6f45776c18888654a27a5bb1e3ca28590a1eb433efe096c1270cb173c4f52757dfe309ddffbf
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrO7:ywLcCmuErglr73aAD+a
TLSH
T11E64F282D501CF47FC2FCAB6823E5E251317AF552B205593D3C4BA1F65B2A82B63E0D9
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 7 IoCs

resource	yara_rule
behavioral2/memory/2160-14-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2160-11-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2160-15-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2160-18-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2160-19-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2160-20-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2160-21-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 7 IoCs

resource	yara_rule
behavioral2/memory/2160-14-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2160-11-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2160-15-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2160-18-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2160-19-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2160-20-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2160-21-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Custom signature

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/4160-0-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral2/memory/4160-2-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral2/files/0x000d00000001b84c-3.dat	UPX
behavioral2/memory/3580-6-0x0000000000400000-0x0000000000483000-memory.dmp	UPX

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
1	2160	rundll32.exe
2	2160	rundll32.exe
3	2160	rundll32.exe
4	2160	rundll32.exe
5	2160	rundll32.exe
6	2160	rundll32.exe
7	2160	rundll32.exe
8	2160	rundll32.exe

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
3580	hhlbzvt.exe

Executes dropped EXE 1 IoCs

pid	Process
3580	hhlbzvt.exe

Loads dropped DLL 1 IoCs

pid	Process
2160	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-1-5-21-4057491610-3392471755-192832105-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wetor = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\remzihon\\sgojh.dll\",GetProc"	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)	\??\k:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\v:	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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4160-0-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral2/memory/4160-2-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral2/files/0x000d00000001b84c-3.dat	upx
behavioral2/memory/3580-6-0x0000000000400000-0x0000000000483000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\remzihon	hhlbzvt.exe
File created	\??\c:\Program Files\remzihon\sgojh.dll	hhlbzvt.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
4204	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 1 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	rundll32.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	2026-11-13_42f4f1e04fa4092c0f982778eed3a67c_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	hhlbzvt.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
4204	cmd.exe
2672	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2672	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2160	rundll32.exe
2160	rundll32.exe
2160	rundll32.exe
2160	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2160	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4160	2026-11-13_42f4f1e04fa4092c0f982778eed3a67c_coinminer_elex_wannacry.exe
3580	hhlbzvt.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4160 wrote to memory of 4204	4160	2026-11-13_42f4f1e04fa4092c0f982778eed3a67c_coinminer_elex_wannacry.exe	91
PID 4204 wrote to memory of 2672	4204	cmd.exe	93
PID 4204 wrote to memory of 3580	4204	cmd.exe	94
PID 3580 wrote to memory of 2160	3580	hhlbzvt.exe	95

C:\Users\Admin\AppData\Local\Temp\2026-11-13_42f4f1e04fa4092c0f982778eed3a67c_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-13_42f4f1e04fa4092c0f982778eed3a67c_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4160
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hhlbzvt.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-13_42f4f1e04fa4092c0f982778eed3a67c_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:4204
- - 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:2672
- - C:\Users\Admin\AppData\Local\Temp\hhlbzvt.exe
    C:\Users\Admin\AppData\Local\Temp\\hhlbzvt.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-13_42f4f1e04fa4092c0f982778eed3a67c_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:3580
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\remzihon\sgojh.dll",GetProc C:\Users\Admin\AppData\Local\Temp\hhlbzvt.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)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2160

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

hhlbzvt.exe

Path C:\Users\Admin\AppData\Local\Temp\hhlbzvt.exe
Size 303KB
SHA256 1a7235913210bce25c44b0125ba87f62df591699ad08cb5ddeaf971ad58eba7b
MD5 9fd34a037fd6efa8143403d04480151f
SHA1 ed352f2704a341e272826af913d249706dc5b698
SHA512 fd8050968f443061db6d17959bd9aef22a9ae75d09787c535eabf0521f68b0cae6367a62098cca4b3451a9e9420d241ea1d200a5a0cce7a4ea80bf36af257057
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrOt:ywLcCmuErglr73aAD+i
TLSH
T1E364F182D501CF47FC2FCAB6823E1E251317AF552B205593D3C4BA1F65B2A82B63E0D9
MD5 SHA1 SHA512 SSDEEP TLSH

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sgojh.dll

Path \??\c:\Program Files\remzihon\sgojh.dll
Size 218KB
SHA256 b4654c25bd80efb15d394954d0f49432233ebfb3a6fab2e484e138dab2278c4f
MD5 f102ca0e463771ea4500a658ae9591fa
SHA1 5dcf34c0bc8e5a7798aa10850bf4b579016b6f14
SHA512 6bf41fc35eeee624faf46feae1a8c0e3842c71902ad4c44977cf7e85c2703e864984c7dc9347968a2b73598c73aa76066a1efbddfd0e5a50a727a7dd833c2dcb
SSDEEP 6144:KORxNwD2VOidhzeXwddDzLi5vOQEqscr0ZTJauytx:pnNwDTi3swddDiROXIn
TLSH
T16F241287CF983873C5223379597951A0B9725290AFA1530DD2E6D34FA072BA2CF7B531
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2160-15-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2160-14-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2160-11-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2160-10-0x0000000002A70000-0x0000000002A71000-memory.dmp

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memory/2160-9-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2160-16-0x0000000002A70000-0x0000000002A71000-memory.dmp

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memory/2160-18-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2160-19-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2160-20-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2160-21-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/3580-6-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/4160-2-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/4160-0-0x0000000000400000-0x0000000000483000-memory.dmp

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