farfli | ab1f08169536bdc81b3327a0b4a9f70451484b1bde2f89168c33c8d141284588

Analysis

max time kernel
150s
max time network
144s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
18/07/2026, 11:15

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General

Target
2026-07-18_5e6bdb51c4f579ab18702b03a7926a9c_coinminer_elex_wannacry.exe
Size 401KB
Sample260718-ncqxpscy21
SHA256 ab1f08169536bdc81b3327a0b4a9f70451484b1bde2f89168c33c8d141284588
MD5 5e6bdb51c4f579ab18702b03a7926a9c
SHA1 2bca6935ad6b8e17614cbe14c8dbf92d998e3199
SHA512 b191ca04b27e571966c2ff012f17e4f504234b919a541354f0906019606d190a064afd7358031a958b99c0fbc861a880a076516866a567101fb39fa3ca89a2a3
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH:zdE3sJd1fm/+yb3OYs84/JH6
TLSH
T1C894AF01E7C351D6DE8225B081FA7376B3789A4D0F12C7E3BB68EE2E6E211D1953B119
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
behavioral2/memory/3288-11-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/3288-13-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/3288-16-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/3288-11-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3288-13-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3288-16-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral2/memory/3748-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/memory/3748-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x001200000001b664-3.dat	UPX
behavioral2/memory/4760-7-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000e00000001c493-8.dat	UPX
behavioral2/memory/3288-10-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/3288-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/3288-13-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/3288-16-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
4760	bhpvf.exe

Executes dropped EXE 2 IoCs

pid	Process
4760	bhpvf.exe
3288	cob.exe

Loads dropped DLL 1 IoCs

pid	Process
3288	cob.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-1-5-21-2246396966-3025826688-3847171515-1000\Software\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\ogcnr\\cob.exe \"c:\\Program Files\\ogcnr\\cobqa.dll\",Viewer"	cob.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)	\??\t:	cob.exe
File opened (read-only)	\??\d:	cob.exe
File opened (read-only)	\??\g:	cob.exe
File opened (read-only)	\??\k:	cob.exe
File opened (read-only)	\??\p:	cob.exe
File opened (read-only)	\??\r:	cob.exe
File opened (read-only)	\??\s:	cob.exe
File opened (read-only)	\??\v:	cob.exe
File opened (read-only)	\??\i:	cob.exe
File opened (read-only)	\??\l:	cob.exe
File opened (read-only)	\??\m:	cob.exe
File opened (read-only)	\??\o:	cob.exe
File opened (read-only)	\??\u:	cob.exe
File opened (read-only)	\??\x:	cob.exe
File opened (read-only)	\??\y:	cob.exe
File opened (read-only)	\??\a:	cob.exe
File opened (read-only)	\??\h:	cob.exe
File opened (read-only)	\??\q:	cob.exe
File opened (read-only)	\??\w:	cob.exe
File opened (read-only)	\??\z:	cob.exe
File opened (read-only)	\??\b:	cob.exe
File opened (read-only)	\??\j:	cob.exe
File opened (read-only)	\??\n:	cob.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	cob.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ogcnr	bhpvf.exe
File created	\??\c:\Program Files\ogcnr\cobqa.dll	bhpvf.exe
File created	\??\c:\Program Files\ogcnr\cob.exe	bhpvf.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
1376	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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bhpvf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cob.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-18_5e6bdb51c4f579ab18702b03a7926a9c_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
1376	cmd.exe
5600	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	cob.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	cob.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5600	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3288	cob.exe
3288	cob.exe
3288	cob.exe
3288	cob.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3288	cob.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3748	2026-07-18_5e6bdb51c4f579ab18702b03a7926a9c_coinminer_elex_wannacry.exe
4760	bhpvf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3748 wrote to memory of 1376	3748	2026-07-18_5e6bdb51c4f579ab18702b03a7926a9c_coinminer_elex_wannacry.exe	89
PID 1376 wrote to memory of 5600	1376	cmd.exe	91
PID 1376 wrote to memory of 4760	1376	cmd.exe	92
PID 4760 wrote to memory of 3288	4760	bhpvf.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-07-18_5e6bdb51c4f579ab18702b03a7926a9c_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-18_5e6bdb51c4f579ab18702b03a7926a9c_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3748
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\bhpvf.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-18_5e6bdb51c4f579ab18702b03a7926a9c_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:1376
- - 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:5600
- - C:\Users\Admin\AppData\Local\Temp\bhpvf.exe
    C:\Users\Admin\AppData\Local\Temp\\bhpvf.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-18_5e6bdb51c4f579ab18702b03a7926a9c_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:4760
  - - \??\c:\Program Files\ogcnr\cob.exe
      "c:\Program Files\ogcnr\cob.exe" "c:\Program Files\ogcnr\cobqa.dll",Viewer C:\Users\Admin\AppData\Local\Temp\bhpvf.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:3288

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

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

cob.exe

Path C:\Program Files\ogcnr\cob.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

bhpvf.exe

Path C:\Users\Admin\AppData\Local\Temp\bhpvf.exe
Size 402KB
SHA256 4611dcf148377c1d6f4b4ed9523361525abeae89454ecfb28bc0882f559ae4be
MD5 f52c0d6d91aae04fce256a184cad4438
SHA1 47af01c89a61a8b9e889b5bb467537d03be81acc
SHA512 1b5bc4f58196f04faeb9ac1991c7da64031044bf4ab278ad33eb8e27dd563a44f3d881685c7248f397e78cb6ef46192313247a3f2f8dfa575e7e37e077a918db
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH:zdE3sJd1fm/+yb3OYs84/JH6
TLSH
T14394AF01E7C351D6DE8225B081FA7376B3789A4D0F12C7E3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

cobqa.dll

Path \??\c:\Program Files\ogcnr\cobqa.dll
Size 89KB
SHA256 a7682f52097f9822888e3072dee8ec076c7f4fa6a7142a408d9fb3f51b91fa63
MD5 bd6ec28760f63570fb6d58d59a6c6bc9
SHA1 a942c6f419899364c708f424cc91756bbb12e054
SHA512 5c8172af51aa5c5733970d2a7c2291705a9236df356ff9d75049b25776672520675b09615ef129b7bd03619ea1d2825632bab75b28d1bb8b2773414e41c6e75d
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGO:M1uF6Feu2NlQOBcGO
TLSH
T1FA9302C45665CD8BCCD87072727FAA4EE631C4CCB941ACB34A5E13A31A36AF3D01AB05
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3288-10-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/3288-11-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/3288-13-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/3288-16-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/3748-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/3748-2-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4760-7-0x0000000000400000-0x0000000000471000-memory.dmp

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