farfli | 59913af9f2964510bf3199aa7051d82de59ccafb62678b8f42b47f6bf4f3e58c

Analysis

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

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
02/11/2026, 01:20

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General

Target
2026-11-01_ff2f08f49dd85120c5442190265fd503_coinminer_elex_wannacry.exe
Size 132KB
Sample261102-bp4ccaet2x
SHA256 59913af9f2964510bf3199aa7051d82de59ccafb62678b8f42b47f6bf4f3e58c
MD5 ff2f08f49dd85120c5442190265fd503
SHA1 884e104927262edcf7960002efc06632334e0ae3
SHA512 9fc661a10affeb80ef9acf9e1c8bb3f967b7048bbbf30b7b3df9d271d3aa4026abd1976eebe89013630f2e7996a61a33ca90c995bbb33baee224ccc46de22cde
SSDEEP 1536:PWCfpn0RbXmUvElSdwS4ytneUDy9ZkM4A3FaJw/xfPWMDXKpQyz6:PWmpn0RbXGxeeJ9w7EPWMWpHz
TLSH
T103D3C013ABAE44FAE0210D7406BA173547B5AC592B245777D388EE1EEC72EC0EC3D256
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
behavioral1/memory/4124-13-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral1/memory/4124-12-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli
behavioral1/memory/4124-14-0x0000000010000000-0x0000000010045000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/4124-13-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4124-12-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/4124-14-0x0000000010000000-0x0000000010045000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Custom signature

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/1900-0-0x0000000000400000-0x000000000041E000-memory.dmp	UPX
behavioral1/memory/1900-2-0x0000000000400000-0x000000000041E000-memory.dmp	UPX
behavioral1/files/0x0005000000023237-4.dat	UPX
behavioral1/memory/3756-7-0x0000000000400000-0x000000000041E000-memory.dmp	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
6	4124	rundll32.exe
16	4124	rundll32.exe
17	4124	rundll32.exe
32	4124	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
3756	mvnrn.exe

Loads dropped DLL 1 IoCs

pid	Process
4124	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-1-5-21-681733028-2344970462-962213935-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\zlqcaiv\\eeqcr.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)	\??\r:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\h:	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)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\v:	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)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	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
behavioral1/memory/1900-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/memory/1900-2-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/files/0x0005000000023237-4.dat	upx
behavioral1/memory/3756-7-0x0000000000400000-0x000000000041E000-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
896	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 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
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	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	2026-11-01_ff2f08f49dd85120c5442190265fd503_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	mvnrn.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
896	cmd.exe
4584	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
4584	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4124	rundll32.exe
4124	rundll32.exe
4124	rundll32.exe
4124	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4124	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1900	2026-11-01_ff2f08f49dd85120c5442190265fd503_coinminer_elex_wannacry.exe
3756	mvnrn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 896	1900	2026-11-01_ff2f08f49dd85120c5442190265fd503_coinminer_elex_wannacry.exe	84
PID 896 wrote to memory of 4584	896	cmd.exe	86
PID 896 wrote to memory of 3756	896	cmd.exe	87
PID 3756 wrote to memory of 4124	3756	mvnrn.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-11-01_ff2f08f49dd85120c5442190265fd503_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-01_ff2f08f49dd85120c5442190265fd503_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\mvnrn.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-01_ff2f08f49dd85120c5442190265fd503_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:896
- - 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:4584
- - \??\c:\mvnrn.exe
    c:\mvnrn.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-01_ff2f08f49dd85120c5442190265fd503_coinminer_elex_wannacry.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3756
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\zlqcaiv\eeqcr.dll",AbortProc c:\mvnrn.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:4124

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

mvnrn.exe

Path C:\mvnrn.exe
Size 132KB
SHA256 a0a17ccfb2c0396ac09651e5bc60f0285c5e026d83a2684628268b12f4c8924e
MD5 eafd4c74b0f9728a376e864bbd3ccfef
SHA1 da9554f71ba14b3659c848ed8b4c95914b6791d6
SHA512 6e5b6a25ad50da6898d0db15b13cfefab60efc891b7d7d848a1aa29b75d250afb5b737178a5bbef11e8652b22931edec09c3af9e6435dafc46a43064e9b61766
SSDEEP 1536:PWCfpn0RbXmUvElSdwS4ytneUDy9ZkM4A3FaJw/xfPWMDXKpQyz6C:PWmpn0RbXGxeeJ9w7EPWMWpHzv
TLSH
T183D3C013AFAE44FAE0210D7406BA173547B5AC592B245777D388EE1EEC72E80EC3D256
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

eeqcr.dll

Path \??\c:\zlqcaiv\eeqcr.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

memory/1900-0-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/1900-2-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/3756-7-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/4124-10-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/4124-11-0x0000000002690000-0x0000000002691000-memory.dmp

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memory/4124-13-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/4124-12-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/4124-14-0x0000000010000000-0x0000000010045000-memory.dmp

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memory/4124-15-0x0000000002690000-0x0000000002691000-memory.dmp

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