farfli | 0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d

Analysis

max time kernel
148s
max time network
137s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260706-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/07/2026, 07:52

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General

Target
0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d.exe
Size 240KB
Sample260709-jqpvcaev4k
SHA256 0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d
MD5 5791f61ac10f17562378571f6f0750c8
SHA1 db938e88ae7573019789564228998dd0df1b55df
SHA512 2b3db216d505be683d534b6ade34e5d96f89662ef2b6d99b279e9b1dce89b1b4f9d4374a73593bfc0f14a84e9e1459b81598e7975abd18c50f56a926403d3415
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFKD:X2vnSwjaOcADw9cUeCOfy
TLSH
T1E034F100D7B2E5E8D44824BA0787D310EAE1DC9E7F73677143D9E31FAB41F1AA4AA194
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

107.163.241.193:6520
http://107.163.241.181:16300/
http://107.163.241.182:12354/login.php

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/2524-16-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/2524-18-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral2/memory/2524-21-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
1376	zkmps.exe

Executes dropped EXE 2 IoCs

pid	Process
1376	zkmps.exe
2524	rlb.exe

Loads dropped DLL 1 IoCs

pid	Process
2524	rlb.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-1-5-21-200172840-2662118501-695741713-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\fptui\\rlb.exe \"c:\\Program Files\\fptui\\rlbzh.dll\",Compliance"	rlb.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)	\??\x:	rlb.exe
File opened (read-only)	\??\y:	rlb.exe
File opened (read-only)	\??\g:	rlb.exe
File opened (read-only)	\??\m:	rlb.exe
File opened (read-only)	\??\o:	rlb.exe
File opened (read-only)	\??\p:	rlb.exe
File opened (read-only)	\??\z:	rlb.exe
File opened (read-only)	\??\d:	rlb.exe
File opened (read-only)	\??\i:	rlb.exe
File opened (read-only)	\??\u:	rlb.exe
File opened (read-only)	\??\w:	rlb.exe
File opened (read-only)	\??\a:	rlb.exe
File opened (read-only)	\??\b:	rlb.exe
File opened (read-only)	\??\h:	rlb.exe
File opened (read-only)	\??\j:	rlb.exe
File opened (read-only)	\??\k:	rlb.exe
File opened (read-only)	\??\l:	rlb.exe
File opened (read-only)	\??\n:	rlb.exe
File opened (read-only)	\??\q:	rlb.exe
File opened (read-only)	\??\r:	rlb.exe
File opened (read-only)	\??\s:	rlb.exe
File opened (read-only)	\??\t:	rlb.exe
File opened (read-only)	\??\v:	rlb.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	rlb.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\fptui	zkmps.exe
File created	\??\c:\Program Files\fptui\rlbzh.dll	zkmps.exe
File created	\??\c:\Program Files\fptui\rlb.exe	zkmps.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	zkmps.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rlb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d.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
1548	cmd.exe
2144	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	rlb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rlb.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2144	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2524	rlb.exe
2524	rlb.exe
2524	rlb.exe
2524	rlb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2524	rlb.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4660	0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d.exe
1376	zkmps.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4660 wrote to memory of 1548	4660	0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d.exe	88
PID 1548 wrote to memory of 2144	1548	cmd.exe	90
PID 1548 wrote to memory of 1376	1548	cmd.exe	91
PID 1376 wrote to memory of 2524	1376	zkmps.exe	92

C:\Users\Admin\AppData\Local\Temp\0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d.exe
"C:\Users\Admin\AppData\Local\Temp\0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4660
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zkmps.exe "C:\Users\Admin\AppData\Local\Temp\0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1548
- - 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:2144
- - C:\Users\Admin\AppData\Local\Temp\zkmps.exe
    C:\Users\Admin\AppData\Local\Temp\\zkmps.exe "C:\Users\Admin\AppData\Local\Temp\0c63f723a9a11d592d2f9267c4d3276d3cb620af9b912883b507966eef995d8d.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:1376
  - - \??\c:\Program Files\fptui\rlb.exe
      "c:\Program Files\fptui\rlb.exe" "c:\Program Files\fptui\rlbzh.dll",Compliance C:\Users\Admin\AppData\Local\Temp\zkmps.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:2524

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

rlb.exe

Path C:\Program Files\fptui\rlb.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

zkmps.exe

Path C:\Users\Admin\AppData\Local\Temp\zkmps.exe
Size 241KB
SHA256 68c9d8dda079ec4350fce84f439d22a5b81901b6dd53633c4528a383aeceefb8
MD5 03427dd86f939ad0ee52c12792b40fe6
SHA1 baf3e4576dc4b4a2960ec0c054d13680fb0f8c72
SHA512 55937a8870f09fec2a5910a1d546f35720475815b3d2d46046b4ad4528143e38b9ed468cd1c546092d82d9a7c3d2224ea0b831ca74fb161d0f6be9caffaac678
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFK:X2vnSwjaOcADw9cUeCOf
TLSH
T1A734F100D7B2E5E8D44824BA0787D310EAE1DC9E7F73677143D9E31FAB41F1AA4AA194
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

rlbzh.dll

Path \??\c:\Program Files\fptui\rlbzh.dll
Size 141KB
SHA256 258923e0135c7e30998755a0cc3592d6cf098c86ed69a05d7e4e49450d5701ba
MD5 a32ce4fcda3f563ba2ff7821e60ffaf6
SHA1 7dc4ef7689336d1e3f8f5a3661ecf98b547e1c37
SHA512 6e94ee0f29614fc6fae67dd85954da6257d24c88f3ba046008b459c36da4e0d94d976ab6f38d236b47da562a464df4b64e7269e342a8890d343a3b2aa8026394
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4lf:RGMmfToTJY6zpSyvkGSn1tlf
TLSH
T148E312E0F3B7C4BAC2655B3147937DF3162CF4346B18072AED62A32769394C44B9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1376-7-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1376-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1376-12-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/2524-15-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/2524-16-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/2524-18-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/2524-21-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4660-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4660-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4660-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4660-2-0x0000000000400000-0x000000000044901D-memory.dmp

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