farfli | cc28076b99b4ce2ebfd255285c1a3d24661c5af0a938b76183329d5f8a4b14f7

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
27/07/2026, 12:43

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General

Target
2026-07-27_eae2a35ccbda1c27ffc52faca427b9e1_coinminer_elex_wannacry.exe
Size 233KB
Sample260727-pxy99aer21
SHA256 cc28076b99b4ce2ebfd255285c1a3d24661c5af0a938b76183329d5f8a4b14f7
MD5 eae2a35ccbda1c27ffc52faca427b9e1
SHA1 2379c88881c38e210acce8679339ec4bd9478580
SHA512 9ae30700440d45e5e0169f9d9845fd08c3e7a28ae3bbd1390f16a7d5b655d6477e476962392ca53b5c81697aa864c8052a21663e2a4b3e688fc5c34ce84eb26f
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSoc:tgmYA/nsYf8QdsINkZ6CQetF
TLSH
T19534F18136A5CD77F0621B7E4D7B163A8537BE691B00B48BD3C4AD4FB4319E46E2E209
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
behavioral1/memory/5016-15-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral1/memory/5016-18-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral1/memory/5016-15-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/5016-18-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/1368-0-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral1/memory/1368-2-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral1/files/0x000e00000002437b-4.dat	UPX
behavioral1/memory/1140-11-0x0000000000400000-0x0000000000468000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
1140	wjsrc.exe

Executes dropped EXE 2 IoCs

pid	Process
1140	wjsrc.exe
5016	prg.exe

Loads dropped DLL 1 IoCs

pid	Process
5016	prg.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-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\it = "c:\\Program Files\\szqoe\\prg.exe \"c:\\Program Files\\szqoe\\prgfi.dll\",Interface"	prg.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)	\??\p:	prg.exe
File opened (read-only)	\??\j:	prg.exe
File opened (read-only)	\??\o:	prg.exe
File opened (read-only)	\??\q:	prg.exe
File opened (read-only)	\??\r:	prg.exe
File opened (read-only)	\??\z:	prg.exe
File opened (read-only)	\??\a:	prg.exe
File opened (read-only)	\??\g:	prg.exe
File opened (read-only)	\??\k:	prg.exe
File opened (read-only)	\??\t:	prg.exe
File opened (read-only)	\??\h:	prg.exe
File opened (read-only)	\??\i:	prg.exe
File opened (read-only)	\??\s:	prg.exe
File opened (read-only)	\??\u:	prg.exe
File opened (read-only)	\??\v:	prg.exe
File opened (read-only)	\??\w:	prg.exe
File opened (read-only)	\??\x:	prg.exe
File opened (read-only)	\??\y:	prg.exe
File opened (read-only)	\??\b:	prg.exe
File opened (read-only)	\??\e:	prg.exe
File opened (read-only)	\??\l:	prg.exe
File opened (read-only)	\??\m:	prg.exe
File opened (read-only)	\??\n:	prg.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	prg.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\szqoe	wjsrc.exe
File created	\??\c:\Program Files\szqoe\prgfi.dll	wjsrc.exe
File created	\??\c:\Program Files\szqoe\prg.exe	wjsrc.exe
File opened for modification	\??\c:\Program Files\szqoe\prg.exe	wjsrc.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
3820	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	prg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-27_eae2a35ccbda1c27ffc52faca427b9e1_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	wjsrc.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
4304	PING.EXE
3820	cmd.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	prg.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	prg.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4304	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5016	prg.exe
5016	prg.exe
5016	prg.exe
5016	prg.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5016	prg.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1368	2026-07-27_eae2a35ccbda1c27ffc52faca427b9e1_coinminer_elex_wannacry.exe
1140	wjsrc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 3820	1368	2026-07-27_eae2a35ccbda1c27ffc52faca427b9e1_coinminer_elex_wannacry.exe	86
PID 3820 wrote to memory of 4304	3820	cmd.exe	88
PID 3820 wrote to memory of 1140	3820	cmd.exe	89
PID 1140 wrote to memory of 5016	1140	wjsrc.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-07-27_eae2a35ccbda1c27ffc52faca427b9e1_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-27_eae2a35ccbda1c27ffc52faca427b9e1_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\wjsrc.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-27_eae2a35ccbda1c27ffc52faca427b9e1_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:3820
- - 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:4304
- - C:\Users\Admin\AppData\Local\Temp\wjsrc.exe
    C:\Users\Admin\AppData\Local\Temp\\wjsrc.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-27_eae2a35ccbda1c27ffc52faca427b9e1_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:1140
  - - \??\c:\Program Files\szqoe\prg.exe
      "c:\Program Files\szqoe\prg.exe" "c:\Program Files\szqoe\prgfi.dll",Interface C:\Users\Admin\AppData\Local\Temp\wjsrc.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:5016

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

Replay Monitor

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Downloads

prg.exe

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

Submit Download

wjsrc.exe

Path C:\Users\Admin\AppData\Local\Temp\wjsrc.exe
Size 233KB
SHA256 50269bbf17757403c1e5acc86068f60f560c13f4e7514bf726a30cd2eab2bff1
MD5 ab9f6905c1c26d734409a878c3c48172
SHA1 052f3245be9992f22e03d6eca46f2bce165f110d
SHA512 5be591f17f261a0877f5943a77f7de03aa0ab5cbc8edf1428b6da67dfa292bd731b2600fd90f2a2375d4c35317e03e0669c82c0d2e2e4e8adb64835f40413cca
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSocg:tgmYA/nsYf8QdsINkZ6CQetFy
TLSH
T1D134F18136A5CD77F0621B7E4D7B163A8537BE691B00B48BD3C4AD4FB4319E46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

prgfi.dll

Path \??\c:\Program Files\szqoe\prgfi.dll
Size 168KB
SHA256 61e8f51de209eecf3fc4b28f227f20e2309734f68143f943686dbd5c785d63f1
MD5 69f3be841dabb7799b50b8ffb8c7435d
SHA1 d38cb72840ebe4fc7b41bdb7e5c5e8b3e353a42e
SHA512 7efbc9aadb441fffd9a994f5c1fb3f4033e2567fb30d6115824883b2fdebc0e568fd003743b8224673df696b77792fc727d35779748746b12efbe2d7f04d94a6
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZM8:SJ8T1xE3ocg9f2nfLnwYsxf2ZD
TLSH
T135F302D3EFA649E0C4361BB07C53C10FB8620C6498715B5643D9BEEA3DA668E493D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1140-11-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/1368-0-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/1368-2-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/5016-14-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/5016-15-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/5016-18-0x0000000010000000-0x000000001006D000-memory.dmp

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