farfli | ae01b05295f2ee5f04dcfb38a74941911e0e3199aca19d39adee5d1f5bcec618

Analysis

max time kernel
148s
max time network
146s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
22/08/2026, 00:49

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General

Target
2026-08-21_e043fda5b12b9ead917ee3798794abae_coinminer_elex_wannacry.exe
Size 237KB
Sample260822-a6ke5azdpg
SHA256 ae01b05295f2ee5f04dcfb38a74941911e0e3199aca19d39adee5d1f5bcec618
MD5 e043fda5b12b9ead917ee3798794abae
SHA1 2fa54ccd1f9f632b4d8f96368966e13045cb51a0
SHA512 f3ae19c37ccac33169f3646db8d92c3560e254a14e7b321597d2bee93c1d1ede9e852f4c2e3bd5018d22bd3984854e6a84ff89ae14e4e2e61e5d937f4bde8e18
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSock:tgmYA/nsYf8QdsINkZ6CQetFS
TLSH
T15534F18136A5CD77F0621B7D4D7B163A8537BE691B00B09BD3C4AD4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

98.126.40.18:3204
http://98.126.40.19:805/index.php
http://98.126.40.20:803/

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 2 IoCs

resource	yara_rule
behavioral2/memory/120-11-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral2/memory/120-14-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/120-11-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/120-14-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/5744-0-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/memory/5744-2-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/files/0x000a000000019caa-3.dat	UPX
behavioral2/memory/5028-7-0x0000000000400000-0x0000000000468000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
5028	evbqyt.exe

Executes dropped EXE 2 IoCs

pid	Process
5028	evbqyt.exe
120	uozveocj.exe

Loads dropped DLL 1 IoCs

pid	Process
120	uozveocj.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\it = "c:\\Program Files\\gaafb\\uozveocj.exe \"c:\\Program Files\\gaafb\\uozveocj.dll\",Interface"	uozveocj.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)	\??\w:	uozveocj.exe
File opened (read-only)	\??\g:	uozveocj.exe
File opened (read-only)	\??\o:	uozveocj.exe
File opened (read-only)	\??\p:	uozveocj.exe
File opened (read-only)	\??\s:	uozveocj.exe
File opened (read-only)	\??\u:	uozveocj.exe
File opened (read-only)	\??\y:	uozveocj.exe
File opened (read-only)	\??\a:	uozveocj.exe
File opened (read-only)	\??\b:	uozveocj.exe
File opened (read-only)	\??\i:	uozveocj.exe
File opened (read-only)	\??\j:	uozveocj.exe
File opened (read-only)	\??\m:	uozveocj.exe
File opened (read-only)	\??\q:	uozveocj.exe
File opened (read-only)	\??\t:	uozveocj.exe
File opened (read-only)	\??\v:	uozveocj.exe
File opened (read-only)	\??\d:	uozveocj.exe
File opened (read-only)	\??\h:	uozveocj.exe
File opened (read-only)	\??\k:	uozveocj.exe
File opened (read-only)	\??\x:	uozveocj.exe
File opened (read-only)	\??\z:	uozveocj.exe
File opened (read-only)	\??\l:	uozveocj.exe
File opened (read-only)	\??\n:	uozveocj.exe
File opened (read-only)	\??\r:	uozveocj.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	uozveocj.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\gaafb\uozveocj.dll	evbqyt.exe
File created	\??\c:\Program Files\gaafb\uozveocj.exe	evbqyt.exe
File opened for modification	\??\c:\Program Files\gaafb	evbqyt.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
1524	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	2026-08-21_e043fda5b12b9ead917ee3798794abae_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	evbqyt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uozveocj.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
1524	cmd.exe
3884	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	uozveocj.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	uozveocj.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3884	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
120	uozveocj.exe
120	uozveocj.exe
120	uozveocj.exe
120	uozveocj.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	120	uozveocj.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5744	2026-08-21_e043fda5b12b9ead917ee3798794abae_coinminer_elex_wannacry.exe
5028	evbqyt.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5744 wrote to memory of 1524	5744	2026-08-21_e043fda5b12b9ead917ee3798794abae_coinminer_elex_wannacry.exe	89
PID 1524 wrote to memory of 3884	1524	cmd.exe	91
PID 1524 wrote to memory of 5028	1524	cmd.exe	92
PID 5028 wrote to memory of 120	5028	evbqyt.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-21_e043fda5b12b9ead917ee3798794abae_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-21_e043fda5b12b9ead917ee3798794abae_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5744
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\evbqyt.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-21_e043fda5b12b9ead917ee3798794abae_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:1524
- - 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:3884
- - C:\Users\Admin\AppData\Local\Temp\evbqyt.exe
    C:\Users\Admin\AppData\Local\Temp\\evbqyt.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-21_e043fda5b12b9ead917ee3798794abae_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:5028
  - - \??\c:\Program Files\gaafb\uozveocj.exe
      "c:\Program Files\gaafb\uozveocj.exe" "c:\Program Files\gaafb\uozveocj.dll",Interface C:\Users\Admin\AppData\Local\Temp\evbqyt.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:120

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

uozveocj.exe

Path C:\Program Files\gaafb\uozveocj.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

evbqyt.exe

Path C:\Users\Admin\AppData\Local\Temp\evbqyt.exe
Size 238KB
SHA256 7c1e4bd7834dc05b994866cb5d1707369bdae92d59203af966c1a348b30be656
MD5 43984bc8dba8fae368c0c817e62c12f9
SHA1 d137f97b750ee3f36e40eec668e73a6cabfe715d
SHA512 96a3d8bbc901182a9853b425b693091fa5941390aac511e392fcaea763249e9f9f39b978e1607774cf126ed4735b3130c023ba0b192eaf7f043d0d9c1ba79e52
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSoc:tgmYA/nsYf8QdsINkZ6CQetF
TLSH
T13934F18136A5CD77F0621B7D4D7B163A8537BE691B00B09BD3C4AD4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

uozveocj.dll

Path \??\c:\Program Files\gaafb\uozveocj.dll
Size 168KB
SHA256 b2c5d714bbf59e82447478524408b0f31e1ccdb0181edc4e382da2b099c60153
MD5 bea7b733f7b75314f1f08f729a0fc525
SHA1 34a542eb5c170b55bab2bbe8f31ed9943e54e5a1
SHA512 6aeef5386e132544c77065e7e3b569df52c09c64019139df6318a4df7d8ead2ffe218ea973d6bffb4d8ce944f1b1eb0cba29f4534f7962abca97b37dd55a423d
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZML:SJ8T1xE3ocg9f2nfLnwYsxf2ZA
TLSH
T12AF312D3EFA649E0C0361BB06C53C10FB8620C6498725B5552D9FEEA3DA668E453D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/120-10-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/120-11-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/120-14-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/5028-7-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/5744-0-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/5744-2-0x0000000000400000-0x0000000000468000-memory.dmp

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