farfli | bb76181685ba380580d91c326bb896ab7cd2c420db8a387b20a42c0df48aa028

General

Target
2026-07-02_d3efc370577ccbe385e6d4445e68b501_coinminer_elex_wannacry.exe
Size 234KB
Sample260702-2d9yvsfx71
SHA256 bb76181685ba380580d91c326bb896ab7cd2c420db8a387b20a42c0df48aa028
MD5 d3efc370577ccbe385e6d4445e68b501
SHA1 9673a87f89a02fe1d37e046ff70a4eb45b10b2d2
SHA512 953f3c032c282741b3cbc2a1d33973d4ba629240adbcee7a19fc794bdfd4abd8dfe165e61865817daddd925e1ca8df1328c3b3f7cc38ff3347f1f86ab30955b6
SSDEEP 6144:yOFgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSoK:zgmYA/nsYf8QdsINkZ6CQetFn
TLSH
T18A34F18136A6CD77F06217BD0D7B563A8136BE590B00B49BD3C4AD4FF4359E4AE2E209
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 2 IoCs

resource	yara_rule
behavioral1/memory/792-12-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral1/memory/792-15-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral1/memory/792-12-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/792-15-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral1/files/0x000300000002332c-2.dat	UPX

Deletes itself 1 IoCs

pid	Process
5428	zkhvxjn.exe

Executes dropped EXE 2 IoCs

pid	Process
5428	zkhvxjn.exe
792	eid.exe

Loads dropped DLL 1 IoCs

pid	Process
792	eid.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-1-5-21-3053180483-1881419501-3594244048-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\it = "c:\\Program Files\\mnfgshf\\eid.exe \"c:\\Program Files\\mnfgshf\\eideb.dll\",Interface"	eid.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)	\??\l:	eid.exe
File opened (read-only)	\??\o:	eid.exe
File opened (read-only)	\??\x:	eid.exe
File opened (read-only)	\??\h:	eid.exe
File opened (read-only)	\??\j:	eid.exe
File opened (read-only)	\??\r:	eid.exe
File opened (read-only)	\??\t:	eid.exe
File opened (read-only)	\??\y:	eid.exe
File opened (read-only)	\??\z:	eid.exe
File opened (read-only)	\??\b:	eid.exe
File opened (read-only)	\??\n:	eid.exe
File opened (read-only)	\??\q:	eid.exe
File opened (read-only)	\??\u:	eid.exe
File opened (read-only)	\??\a:	eid.exe
File opened (read-only)	\??\e:	eid.exe
File opened (read-only)	\??\g:	eid.exe
File opened (read-only)	\??\m:	eid.exe
File opened (read-only)	\??\p:	eid.exe
File opened (read-only)	\??\s:	eid.exe
File opened (read-only)	\??\v:	eid.exe
File opened (read-only)	\??\w:	eid.exe
File opened (read-only)	\??\i:	eid.exe
File opened (read-only)	\??\k:	eid.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	eid.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\mnfgshf	zkhvxjn.exe
File created	\??\c:\Program Files\mnfgshf\eideb.dll	zkhvxjn.exe
File created	\??\c:\Program Files\mnfgshf\eid.exe	zkhvxjn.exe
File opened for modification	\??\c:\Program Files\mnfgshf\eid.exe	zkhvxjn.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	2026-07-02_d3efc370577ccbe385e6d4445e68b501_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	zkhvxjn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eid.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
2532	cmd.exe
6040	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	eid.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	eid.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
6040	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
792	eid.exe
792	eid.exe
792	eid.exe
792	eid.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	792	eid.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5808	2026-07-02_d3efc370577ccbe385e6d4445e68b501_coinminer_elex_wannacry.exe
5428	zkhvxjn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5808 wrote to memory of 2532	5808	2026-07-02_d3efc370577ccbe385e6d4445e68b501_coinminer_elex_wannacry.exe	85
PID 2532 wrote to memory of 6040	2532	cmd.exe	87
PID 2532 wrote to memory of 5428	2532	cmd.exe	88
PID 5428 wrote to memory of 792	5428	zkhvxjn.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-02_d3efc370577ccbe385e6d4445e68b501_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-02_d3efc370577ccbe385e6d4445e68b501_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5808
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zkhvxjn.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-02_d3efc370577ccbe385e6d4445e68b501_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2532
- - 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:6040
- - C:\Users\Admin\AppData\Local\Temp\zkhvxjn.exe
    C:\Users\Admin\AppData\Local\Temp\\zkhvxjn.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-02_d3efc370577ccbe385e6d4445e68b501_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:5428
  - - \??\c:\Program Files\mnfgshf\eid.exe
      "c:\Program Files\mnfgshf\eid.exe" "c:\Program Files\mnfgshf\eideb.dll",Interface C:\Users\Admin\AppData\Local\Temp\zkhvxjn.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:792

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

2

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

eid.exe

Path C:\Program Files\mnfgshf\eid.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

eideb.dll

Path C:\Program Files\mnfgshf\eideb.dll
Size 168KB
SHA256 02a4fe133cc7f84693e82074dc5afdc9897e93a789e04a3d3afe606cfc957eb3
MD5 acff3031f089cfe4d5751a7f211f53b0
SHA1 1dcd03d3533b58d021577c5c8007f9d2365da167
SHA512 9efd8bff44f46ce1939ac905820349a06d5de97f6f284b3061974529c6d387d2060a4f10ec1e0a2624b67bbebfa8d11be52ac59573fd8283275a5e6545ca3007
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZMs:SJ8T1xE3ocg9f2nfLnwYsxf2ZP
TLSH
T1BAF312D3EFA649E0C0361BB07C53C10FB8620D6498715B5643D9FEEA3DA668E493D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

zkhvxjn.exe

Path C:\Users\Admin\AppData\Local\Temp\zkhvxjn.exe
Size 234KB
SHA256 1e368b559650a229decc1679649e1d750c07b31e61e27b6c1f2b8eda2c62e45d
MD5 b4398b228bc99b7694c5f5b40958e401
SHA1 383db2b7667fb2817ad508c2667477cf4af99bfc
SHA512 8dd566b3f2eaff3876fba9cfde1ad585aa37d9c754ab1b3661f4fdbfb93a60bd85feda0d093fe3bcb52784540b3dc7692d9ef35d662c804ffc2874c22fd11eec
SSDEEP 6144:yOFgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSop:zgmYA/nsYf8QdsINkZ6CQetF6
TLSH
T18934F18136A6CD77F06217BD0D7B563A8136BE590B00B49BD3C4AD4FF4359E4AE2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/792-11-0x0000000010000000-0x000000001006D000-memory.dmp

Download

memory/792-12-0x0000000010000000-0x000000001006D000-memory.dmp

Download

memory/792-15-0x0000000010000000-0x000000001006D000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads