farfli | a5331031e233d5c2441a64f9a4bacc5eeb7ccec71a797d0fe7972652af74f52e

General

Target
2026-06-01_9124facbf7162aea8f0a57d12ff20207_coinminer_elex_wannacry.exe
Size 232KB
Sample260601-e4dl1sew3q
SHA256 a5331031e233d5c2441a64f9a4bacc5eeb7ccec71a797d0fe7972652af74f52e
MD5 9124facbf7162aea8f0a57d12ff20207
SHA1 23c0bd0200fc2ee02993b16a50fcf7f1ec71819b
SHA512 0b8137e824e75ec7a5f45763124e20a54bc1f08ad6a7fd6c96b904d0cdb289d9a3bd996099fe010d5651ccca5f5e85ea2b08175189f107a216ec1a49259cf845
SSDEEP 6144:yOFgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSo3:zgmYA/nsYf8QdsINkZ6CQetFe
TLSH
T17134F18136A5CD77F0621B7D0D7B163A8136BE691B00B49BD3C4ED5FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

C2

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 3 IoCs

resource	yara_rule
behavioral2/memory/4996-13-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral2/memory/4996-15-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral2/memory/4996-16-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/4996-13-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4996-15-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4996-16-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x0011000000025ee6-2.dat	UPX

Deletes itself 1 IoCs

pid	Process
5600	jhsta.exe

Executes dropped EXE 2 IoCs

pid	Process
5600	jhsta.exe
4996	dts.exe

Loads dropped DLL 1 IoCs

pid	Process
4996	dts.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-1-5-21-1768642833-2142038154-4041560723-1000\Software\Microsoft\Windows\CurrentVersion\Run\it = "c:\\Program Files\\cquyu\\dts.exe \"c:\\Program Files\\cquyu\\dtsmm.dll\",Interface"	dts.exe

Enumerates connected drives 3 TTPs 2 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)	\??\a:	dts.exe
File opened (read-only)	\??\b:	dts.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	dts.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\cquyu	jhsta.exe
File created	\??\c:\Program Files\cquyu\dtsmm.dll	jhsta.exe
File created	\??\c:\Program Files\cquyu\dts.exe	jhsta.exe
File opened for modification	\??\c:\Program Files\cquyu\dts.exe	jhsta.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4004	4996	WerFault.exe	84

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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jhsta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-06-01_9124facbf7162aea8f0a57d12ff20207_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
3644	cmd.exe
4272	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4272	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4996	dts.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3700	2026-06-01_9124facbf7162aea8f0a57d12ff20207_coinminer_elex_wannacry.exe
5600	jhsta.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3700 wrote to memory of 3644	3700	2026-06-01_9124facbf7162aea8f0a57d12ff20207_coinminer_elex_wannacry.exe	80
PID 3644 wrote to memory of 4272	3644	cmd.exe	82
PID 3644 wrote to memory of 5600	3644	cmd.exe	83
PID 5600 wrote to memory of 4996	5600	jhsta.exe	84

C:\Users\Admin\AppData\Local\Temp\2026-06-01_9124facbf7162aea8f0a57d12ff20207_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-01_9124facbf7162aea8f0a57d12ff20207_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3700
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jhsta.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-01_9124facbf7162aea8f0a57d12ff20207_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3644
- - 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:4272
- - C:\Users\Admin\AppData\Local\Temp\jhsta.exe
    C:\Users\Admin\AppData\Local\Temp\\jhsta.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-01_9124facbf7162aea8f0a57d12ff20207_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:5600
  - - \??\c:\Program Files\cquyu\dts.exe
      "c:\Program Files\cquyu\dts.exe" "c:\Program Files\cquyu\dtsmm.dll",Interface C:\Users\Admin\AppData\Local\Temp\jhsta.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
      Suspicious use of AdjustPrivilegeToken
      PID:4996
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 1480
        5⤵
        Program crash
        
        PID:4004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4996 -ip 4996
1⤵
PID:1780

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

dts.exe

Path C:\Program Files\cquyu\dts.exe
Size 40KB
SHA256 8dcaeeebef9b9f3d41d295db145ffb3850f309d089c08125c7fa7034db5fd80e
MD5 22bb5bd901d8b25ac5b41edbb7d5053e
SHA1 8a935dd8d7e104fc553ff7e8b54a404f7b079334
SHA512 cc3fb68fd6791a08e4a7d1a8db8d07cfcc8c9b9dceec10b53f0cb7ee86473303a19be4f23e379f84c59e02d0568e7c066e21cd1300f6032dac4ba52f609f62e7
SSDEEP 768:C67uhQpPPp0nnqFk509FRdVcQX6N58hJYim1jLP3RRe:C67uhQpXp0nnqa5093jKNAmB3RR
TLSH
T10C134C02BE88C071DDA114B41A5DB337939DED604B1586D3593887EBAA2D3E39E343DE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

jhsta.exe

Path C:\Users\Admin\AppData\Local\Temp\jhsta.exe
Size 232KB
SHA256 ce1014aee52143267bafc2e2ab2f85f409872d7579ff64b19008801b33f9363b
MD5 95a1d2e172d223e6e26eb93a3a1ddbfd
SHA1 061d7a883bc96d9454a06b5feeaf46301cf62cdc
SHA512 0119fb5d5c3fd292fc084335aea5aea8cc9540a8dca5a9343fa65793a968d2ea58e19d3d855acc0a05caf926246b73bb2dbac7e2442f081c5b787a83811d5bc3
SSDEEP 6144:yOFgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSo6:zgmYA/nsYf8QdsINkZ6CQetFX
TLSH
T18134E18136A5CD77F0621B7D0D7B163A8136BE691B00B49BD3C4ED4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

dtsmm.dll

Path \??\c:\Program Files\cquyu\dtsmm.dll
Size 168KB
SHA256 94149d0825b126e710768ab8d70058e7492e3c3b174c3ddf154e810e5dcafe80
MD5 27f08eaa0fbae2ca004f776537832d60
SHA1 80386438aa91e5dc654deca95c2a74d354f5768b
SHA512 5a0018cd02aa2c9c885dc03f75c835a68d2b987503a98555859b58c321ac3237172d60885f1fb19409c4c3e3e498b2e0223f27ec2a5730f9527b96fc19f006ac
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZMM:SJ8T1xE3ocg9f2nfLnwYsxf2Zv
TLSH
T1A4F312D3EFA649E0C0361BB07C53C10FB8620C6498715B5643D9FEEA3DA668E493D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4996-11-0x0000000010000000-0x000000001006D000-memory.dmp

Download

memory/4996-13-0x0000000010000000-0x000000001006D000-memory.dmp

Download

memory/4996-15-0x0000000010000000-0x000000001006D000-memory.dmp

Download

memory/4996-16-0x0000000010000000-0x000000001006D000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads