farfli | 7eee1de9887b17ce07eddafd9d25488ff2b0bfe93654568f115474cd61d35788

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
05/08/2026, 06:50

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General

Target
2026-08-05_a16fc35c9ee8875c50a27818065d6b9d_coinminer_elex_wannacry.exe
Size 132KB
Sample260805-hmdr8sfc24
SHA256 7eee1de9887b17ce07eddafd9d25488ff2b0bfe93654568f115474cd61d35788
MD5 a16fc35c9ee8875c50a27818065d6b9d
SHA1 91655f4f7d6acd61b5b7ebaa54c3207803cd53c0
SHA512 944d141321f1fbf72fec1fcba0053384698468881a113bb4538fb14180d911ada7a405169ce9ae85d3449375057dd171d99a250f2197501a65034c9d82561d47
SSDEEP 1536:PWCfpn0RbXmUvElSdwS4ytneUDy9ZkM4A3FaJw/xfPWMDXKpQT:PWmpn0RbXGxeeJ9w7EPWMWp
TLSH
T1F4D3CF13ABAE84F6E0210C7406BA173543B5AC5A2B245777D388EE5EE871EC4EC3D356
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli gh0strat persistence rat spyware stealer upx

Malware Config

Extracted

Family

gh0strat

host123.zz.am:6658
http://23.104.160.115:8890/version.php
http://23.104.160.116:9963/

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli
Family: Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral2/memory/5588-10-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral2/memory/5588-9-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral2/memory/5588-13-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/5588-10-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5588-9-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5588-13-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/3428-0-0x0000000000400000-0x000000000041E000-memory.dmp	UPX
behavioral2/memory/3428-2-0x0000000000400000-0x000000000041E000-memory.dmp	UPX
behavioral2/files/0x000d00000001b87d-3.dat	UPX
behavioral2/memory/4932-6-0x0000000000400000-0x000000000041E000-memory.dmp	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
7	5588	rundll32.exe
9	5588	rundll32.exe
10	5588	rundll32.exe
11	5588	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
4932	xkwue.exe

Loads dropped DLL 1 IoCs

pid	Process
5588	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-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\ckoax\\jqiodbcmm.dll\",AbortProc"	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)	\??\m:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\p:	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)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3428-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral2/memory/3428-2-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral2/files/0x000d00000001b87d-3.dat	upx
behavioral2/memory/4932-6-0x0000000000400000-0x000000000041E000-memory.dmp	upx

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
4844	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	2026-08-05_a16fc35c9ee8875c50a27818065d6b9d_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	xkwue.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
4844	cmd.exe
1084	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
1084	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5588	rundll32.exe
5588	rundll32.exe
5588	rundll32.exe
5588	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5588	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3428	2026-08-05_a16fc35c9ee8875c50a27818065d6b9d_coinminer_elex_wannacry.exe
4932	xkwue.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3428 wrote to memory of 4844	3428	2026-08-05_a16fc35c9ee8875c50a27818065d6b9d_coinminer_elex_wannacry.exe	89
PID 4844 wrote to memory of 1084	4844	cmd.exe	91
PID 4844 wrote to memory of 4932	4844	cmd.exe	92
PID 4932 wrote to memory of 5588	4932	xkwue.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-05_a16fc35c9ee8875c50a27818065d6b9d_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-05_a16fc35c9ee8875c50a27818065d6b9d_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\xkwue.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-05_a16fc35c9ee8875c50a27818065d6b9d_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:4844
- - 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:1084
- - \??\c:\xkwue.exe
    c:\xkwue.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-05_a16fc35c9ee8875c50a27818065d6b9d_coinminer_elex_wannacry.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4932
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\ckoax\jqiodbcmm.dll",AbortProc c:\xkwue.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:5588

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

jqiodbcmm.dll

Path \??\c:\ckoax\jqiodbcmm.dll
Size 60KB
SHA256 42304221991ff2ea9d6c0252d42b90390caebc312a17126a4b13e9514f2b7d87
MD5 75e08aa9274df390fcdb1df3d0733bd5
SHA1 f3053cc10f33436aa1da7ec82a12ffdaff10ccfb
SHA512 dee8a07ca2142eb2ec1a5ce56af92605bb1c11e89da5d4335aee1098dc73375e422d9c53f201e571ff64b51c5cfa3928b1f26c0a23f4671dfbd91b1355d0e9db
SSDEEP 1536:Itj4HbqT+M0L2J2US62eSBQno/CUVzsxeOPw:ItqeT+M02J25qnLUVzs9w
TLSH
T1D05301286F6D2EDDFA3152B1E0985093FBD98B03043FA24D2544777F7D829631A93BA4
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

xkwue.exe

Path \??\c:\xkwue.exe
Size 132KB
SHA256 9348bbf23d571ea4de46a3c4356c02f54e68b08562ae82b34a0be543391398a2
MD5 21736108b5347a7a826bb271f4eefc51
SHA1 6f98d0bc0199e3245801e68cda4a5ded05395558
SHA512 603d83359c754e013d2654f7d0c06f99b7da66cacaeee106df7c2e8577adf890d11bb5af17e7196ae70c2b60a7985d35e7aeadafbc38c953335af84ad42522b2
SSDEEP 1536:PWCfpn0RbXmUvElSdwS4ytneUDy9ZkM4A3FaJw/xfPWMDXKpQTe:PWmpn0RbXGxeeJ9w7EPWMWpH
TLSH
T1AAD3CF13ABAE84F6E0210C7406BA173543B5AC5A2B245777D388EE5EEC71EC4EC3D256
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3428-0-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/3428-2-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/4932-6-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/5588-10-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/5588-12-0x00000000027C0000-0x00000000027C1000-memory.dmp

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memory/5588-9-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/5588-11-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/5588-13-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/5588-14-0x00000000027C0000-0x00000000027C1000-memory.dmp

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