farfli | 1e773c4df758d67837c9fc5c406b0956ba224c78f36428775d38cd8e4d244612

Analysis

max time kernel
148s
max time network
138s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
06/08/2026, 22:46

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General

Target
2026-08-06_a4368f9478b0913dc063a41091e31baa_coinminer_elex_wannacry.exe
Size 403KB
Sample260806-2qb8cssckd
SHA256 1e773c4df758d67837c9fc5c406b0956ba224c78f36428775d38cd8e4d244612
MD5 a4368f9478b0913dc063a41091e31baa
SHA1 1c8b6e2d13304a10398cc95c696a50aeb429aac6
SHA512 659e8245e9acd62b9dfb6ad87bed604160038ceca8dff51597f7a0577a90be8b1431822c7af11b3c29e4ee9a120624f04d5356dc3c5283991e05571e70c2cc27
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH:zdE3sJd1fm/+yb3OYs84/JH6
TLSH
T1C294AF01E7C351D6DE8225B081FA7376B3789A4D0F12C7E3BB68EE2E6E211D1953B119
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 4 IoCs

resource	yara_rule
behavioral2/memory/1464-11-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/1464-12-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/1464-14-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral2/memory/1464-17-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/1464-11-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1464-12-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1464-14-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1464-17-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 10 IoCs

resource	yara_rule
behavioral2/memory/4004-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/memory/4004-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000c00000001b1b7-3.dat	UPX
behavioral2/memory/4684-5-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/memory/4684-8-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral2/files/0x000c00000001c587-9.dat	UPX
behavioral2/memory/1464-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/1464-12-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/1464-14-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/1464-17-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
4684	zttsj.exe

Executes dropped EXE 2 IoCs

pid	Process
4684	zttsj.exe
1464	xshz.exe

Loads dropped DLL 1 IoCs

pid	Process
1464	xshz.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-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\qbbuxhmn\\xshz.exe \"c:\\Program Files\\qbbuxhmn\\xshzp.dll\",Viewer"	xshz.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)	\??\i:	xshz.exe
File opened (read-only)	\??\m:	xshz.exe
File opened (read-only)	\??\y:	xshz.exe
File opened (read-only)	\??\a:	xshz.exe
File opened (read-only)	\??\b:	xshz.exe
File opened (read-only)	\??\g:	xshz.exe
File opened (read-only)	\??\j:	xshz.exe
File opened (read-only)	\??\p:	xshz.exe
File opened (read-only)	\??\x:	xshz.exe
File opened (read-only)	\??\l:	xshz.exe
File opened (read-only)	\??\n:	xshz.exe
File opened (read-only)	\??\q:	xshz.exe
File opened (read-only)	\??\s:	xshz.exe
File opened (read-only)	\??\t:	xshz.exe
File opened (read-only)	\??\u:	xshz.exe
File opened (read-only)	\??\w:	xshz.exe
File opened (read-only)	\??\z:	xshz.exe
File opened (read-only)	\??\d:	xshz.exe
File opened (read-only)	\??\h:	xshz.exe
File opened (read-only)	\??\k:	xshz.exe
File opened (read-only)	\??\o:	xshz.exe
File opened (read-only)	\??\r:	xshz.exe
File opened (read-only)	\??\v:	xshz.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	xshz.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\qbbuxhmn	zttsj.exe
File created	\??\c:\Program Files\qbbuxhmn\xshzp.dll	zttsj.exe
File created	\??\c:\Program Files\qbbuxhmn\xshz.exe	zttsj.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
488	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	zttsj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xshz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-06_a4368f9478b0913dc063a41091e31baa_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
488	cmd.exe
4352	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	xshz.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	xshz.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4352	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1464	xshz.exe
1464	xshz.exe
1464	xshz.exe
1464	xshz.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1464	xshz.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4004	2026-08-06_a4368f9478b0913dc063a41091e31baa_coinminer_elex_wannacry.exe
4684	zttsj.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 488	4004	2026-08-06_a4368f9478b0913dc063a41091e31baa_coinminer_elex_wannacry.exe	89
PID 488 wrote to memory of 4352	488	cmd.exe	91
PID 488 wrote to memory of 4684	488	cmd.exe	92
PID 4684 wrote to memory of 1464	4684	zttsj.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-06_a4368f9478b0913dc063a41091e31baa_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-06_a4368f9478b0913dc063a41091e31baa_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zttsj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-06_a4368f9478b0913dc063a41091e31baa_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:488
- - 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:4352
- - C:\Users\Admin\AppData\Local\Temp\zttsj.exe
    C:\Users\Admin\AppData\Local\Temp\\zttsj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-06_a4368f9478b0913dc063a41091e31baa_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:4684
  - - \??\c:\Program Files\qbbuxhmn\xshz.exe
      "c:\Program Files\qbbuxhmn\xshz.exe" "c:\Program Files\qbbuxhmn\xshzp.dll",Viewer C:\Users\Admin\AppData\Local\Temp\zttsj.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:1464

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

Replay Monitor

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Downloads

xshz.exe

Path C:\Program Files\qbbuxhmn\xshz.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

zttsj.exe

Path C:\Users\Admin\AppData\Local\Temp\zttsj.exe
Size 403KB
SHA256 dc002f137e6fa1db713cdca932abd12ee0d69cd41a12ddb9e4e0f2cfe6ac2000
MD5 fc921801e407f2f9e9561d49e4af54f1
SHA1 adaaa6367144ace048089576ee591888feb126da
SHA512 d102bc47e267ca6fb363d1967c57e1d1e2491e5b1430894a2587b4b9902ee5e88e0103ab6b5bc0a941936df285e09b56068ec728f9bc8a799279b6f82b273127
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH:zdE3sJd1fm/+yb3OYs84/JH6
TLSH
T18B94AF01E7C351D6DE8225B081FA7376B3789A4D0F12C7E3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

xshzp.dll

Path \??\c:\Program Files\qbbuxhmn\xshzp.dll
Size 89KB
SHA256 8732a13975cd649976da92d30f9cc01c80274835c7b1a475484f49823288142f
MD5 b0f338157f2831aee57f8890065ad4c3
SHA1 79fd223a9122a5aaf3d52949735504563743c695
SHA512 ea8d5d3ed4cda3b2462ce0a71e101ff39124dfad5f93f189774473d1bc170867073cc4f4d3a4e33536a86e4b3d7b061b155b71e986068ddf9687e4eb15846952
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGp:M1uF6Feu2NlQOBcGp
TLSH
T1D09302C45665CD8BCCD87072727FAA4EE631D48CB941ACB34A5E13A31A36AF3D41AB05
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1464-11-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/1464-12-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/1464-14-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/1464-17-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/4004-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4004-2-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4684-5-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4684-8-0x0000000000400000-0x0000000000471000-memory.dmp

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