farfli | b03340ba22b23b009677230fc6b8be4fe28f9f8486e731e3c7e9afeceb92fc60

Analysis

max time kernel
149s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
20/10/2026, 14:18

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General

Target
2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe
Size 409KB
Sample261020-rmrtjaax2w
SHA256 b03340ba22b23b009677230fc6b8be4fe28f9f8486e731e3c7e9afeceb92fc60
MD5 878d260530a181e1b0a432606fbab273
SHA1 f29983d2997f0fb5727481085ce159559d934b80
SHA512 83f5c58fcc2785a6b83bd35e93f64a921adb178e68a3122ffe06118e3fca4d6c13ca2a1578d1b800e3ed0fc5175c62959d9380f097c9f0f17b5aa02a9d4c749a
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKum4:zdE3sJd1fm/+yb3OYs84/JHd
TLSH
T19994AF01E7C351D6DE82257081FA7376B3789A4D0F12CBE3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli persistence spyware stealer

Malware Config

Signatures

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

Detects Farfli Backdoor 4 IoCs

resource	yara_rule
behavioral1/memory/4488-14-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/4488-15-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/4488-17-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/4488-20-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral1/memory/4488-14-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4488-15-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4488-17-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4488-20-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral1/memory/4652-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral1/memory/4652-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral1/files/0x00080000000244ff-4.dat	UPX
behavioral1/memory/3804-13-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral1/files/0x0008000000024501-12.dat	UPX
behavioral1/memory/4488-14-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/4488-15-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/4488-17-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/4488-20-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
3804	qdyxa.exe

Executes dropped EXE 2 IoCs

pid	Process
3804	qdyxa.exe
4488	hbvbukzv.exe

Loads dropped DLL 1 IoCs

pid	Process
4488	hbvbukzv.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-1-5-21-681733028-2344970462-962213935-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\uqmhnihka\\hbvbukzv.exe \"c:\\Program Files\\uqmhnihka\\hbvbukzv.dll\",Viewer"	hbvbukzv.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)	\??\j:	hbvbukzv.exe
File opened (read-only)	\??\l:	hbvbukzv.exe
File opened (read-only)	\??\n:	hbvbukzv.exe
File opened (read-only)	\??\p:	hbvbukzv.exe
File opened (read-only)	\??\s:	hbvbukzv.exe
File opened (read-only)	\??\t:	hbvbukzv.exe
File opened (read-only)	\??\u:	hbvbukzv.exe
File opened (read-only)	\??\h:	hbvbukzv.exe
File opened (read-only)	\??\r:	hbvbukzv.exe
File opened (read-only)	\??\x:	hbvbukzv.exe
File opened (read-only)	\??\y:	hbvbukzv.exe
File opened (read-only)	\??\z:	hbvbukzv.exe
File opened (read-only)	\??\a:	hbvbukzv.exe
File opened (read-only)	\??\b:	hbvbukzv.exe
File opened (read-only)	\??\i:	hbvbukzv.exe
File opened (read-only)	\??\k:	hbvbukzv.exe
File opened (read-only)	\??\m:	hbvbukzv.exe
File opened (read-only)	\??\q:	hbvbukzv.exe
File opened (read-only)	\??\v:	hbvbukzv.exe
File opened (read-only)	\??\w:	hbvbukzv.exe
File opened (read-only)	\??\g:	hbvbukzv.exe
File opened (read-only)	\??\o:	hbvbukzv.exe
File opened (read-only)	\??\e:	hbvbukzv.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	hbvbukzv.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\uqmhnihka	qdyxa.exe
File created	\??\c:\Program Files\uqmhnihka\hbvbukzv.dll	qdyxa.exe
File created	\??\c:\Program Files\uqmhnihka\hbvbukzv.exe	qdyxa.exe
File opened for modification	\??\c:\Program Files\uqmhnihka\hbvbukzv.exe	qdyxa.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
5080	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	qdyxa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hbvbukzv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-19_878d260530a181e1b0a432606fbab273_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

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
5080	cmd.exe
4244	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	hbvbukzv.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	hbvbukzv.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4244	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4488	hbvbukzv.exe
4488	hbvbukzv.exe
4488	hbvbukzv.exe
4488	hbvbukzv.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4488	hbvbukzv.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4652	2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe
3804	qdyxa.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4652 wrote to memory of 5080	4652	2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe	84
PID 5080 wrote to memory of 4244	5080	cmd.exe	86
PID 5080 wrote to memory of 3804	5080	cmd.exe	87
PID 3804 wrote to memory of 4488	3804	qdyxa.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-19_878d260530a181e1b0a432606fbab273_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4652
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qdyxa.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-19_878d260530a181e1b0a432606fbab273_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:5080
- - 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:4244
- - C:\Users\Admin\AppData\Local\Temp\qdyxa.exe
    C:\Users\Admin\AppData\Local\Temp\\qdyxa.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-19_878d260530a181e1b0a432606fbab273_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:3804
  - - \??\c:\Program Files\uqmhnihka\hbvbukzv.exe
      "c:\Program Files\uqmhnihka\hbvbukzv.exe" "c:\Program Files\uqmhnihka\hbvbukzv.dll",Viewer C:\Users\Admin\AppData\Local\Temp\qdyxa.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:4488

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

Replay Monitor

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Downloads

hbvbukzv.dll

Path C:\Program Files\uqmhnihka\hbvbukzv.dll
Size 89KB
SHA256 be51fb1551dfb4e42e0005e4ad7d7158962669bc68c0267da79728d379c2c3b5
MD5 4e314e95c6814942308858acc0efe8fb
SHA1 bb17c745262b69a8633176e76658b77e560f56cb
SHA512 0271797c064b1faeb74cdf5f408030d52d530e98968e87f5272992492e310783dc090bcde103fcceadbf2ec1affd1acb84b62bcf6a1307685540a00748156a0e
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGJo:M1uF6Feu2NlQOBcGJo
TLSH
T12D9302C45665CD8BCCD87072327FAA4EE631D4CCB941ACB34B5E12A31A366E3D41AB45
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

qdyxa.exe

Path C:\Users\Admin\AppData\Local\Temp\qdyxa.exe
Size 409KB
SHA256 2e21fcadfae0afc003c381a254b210766e245028900a6f97911a7747316c8ed0
MD5 3c878881d61bda72c86692f309138da1
SHA1 19f67276dbac4414abbaa5fb0cc0d8536a516d06
SHA512 706e334cbfcef6994c3d33aaa80be7fc04a2a4d9a7de7fcbc014eff88c44e614fce0e3853ece54d618b8a3944c5575b4dc8f2bacc9d10f2c94715b0e37e6ef97
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKum4j:zdE3sJd1fm/+yb3OYs84/JHdj
TLSH
T1FA94AF01E7C351D6DE82257081FA7376B3789A4D0F12CBE3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

hbvbukzv.exe

Path \??\c:\Program Files\uqmhnihka\hbvbukzv.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/3804-13-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4488-14-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4488-15-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4488-17-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4488-20-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4652-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4652-2-0x0000000000400000-0x0000000000471000-memory.dmp

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