cee28f29f904524b7f645bcec3dfdfe38f8269b001144cd909f5d9232890d33b

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/11/2024, 17:03

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General

Target

Fnloader.exe
Size

24.1MB
MD5

e091e9e5ede4161b45b880ccd6e140b0
SHA1

1a18b960482c2a242df0e891de9e3a125e439122
SHA256

cee28f29f904524b7f645bcec3dfdfe38f8269b001144cd909f5d9232890d33b
SHA512

fa8627055bbeb641f634b56059e7b5173e7c64faaa663e050c20d01d708a64877e71cd0b974282c70cb448e877313b1cf0519cf6128c733129b045f2b961a09b
SSDEEP

786432:4IpXDWoLTNOqMV275eEhoVu/nnO5Ka9NhW:5pXDhLTNJMQ75efVuvn2Ka9N

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2128	Fnloader.exe

Loads dropped DLL 2 IoCs

pid	Process
2016	Fnloader.exe
2128	Fnloader.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

System Location Discovery: System Language Discovery 1 TTPs 2 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	Fnloader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Fnloader.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2128	2016	Fnloader.exe	31
PID 2016 wrote to memory of 2128	2016	Fnloader.exe	31
PID 2016 wrote to memory of 2128	2016	Fnloader.exe	31
PID 2016 wrote to memory of 2128	2016	Fnloader.exe	31
PID 2016 wrote to memory of 2128	2016	Fnloader.exe	31
PID 2016 wrote to memory of 2128	2016	Fnloader.exe	31
PID 2016 wrote to memory of 2128	2016	Fnloader.exe	31

C:\Users\Admin\AppData\Local\Temp\Fnloader.exe
"C:\Users\Admin\AppData\Local\Temp\Fnloader.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\Temp\{9EB7F1A0-9A1E-4FB0-B9CF-655D74F68572}\.cr\Fnloader.exe
  "C:\Windows\Temp\{9EB7F1A0-9A1E-4FB0-B9CF-655D74F68572}\.cr\Fnloader.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\Fnloader.exe" -burn.filehandle.attached=180 -burn.filehandle.self=188
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Temp\{D289379B-6979-42E9-91E2-0F498BBF862D}\.ba\logo.png

Filesize
1KB

MD5
d6bd210f227442b3362493d046cea233

SHA1
ff286ac8370fc655aea0ef35e9cf0bfcb6d698de

SHA256
335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef

SHA512
464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b

Download Submit
\Windows\Temp\{9EB7F1A0-9A1E-4FB0-B9CF-655D74F68572}\.cr\Fnloader.exe

Filesize
634KB

MD5
cb264f7d256b42a54b2129b7a02c1ce3

SHA1
d71459e24185f70b0c8647758663b1116a898412

SHA256
d6aaee30c9b7edeac6939f78f4a55683c6358d9cc03dac487880d01f18700e83

SHA512
4f623f5d21bc216f3dd040e6d0c663a8ea37efe5d0ce5f4aeb1ef5c1f7c873e19d1abc979d3e40d4dc70e2e4f0fc9a1b114b17d9eb852ea9a41d0f84356cd7cb

Download Submit
\Windows\Temp\{D289379B-6979-42E9-91E2-0F498BBF862D}\.ba\wixstdba.dll

Filesize
191KB

MD5
eab9caf4277829abdf6223ec1efa0edd

SHA1
74862ecf349a9bedd32699f2a7a4e00b4727543d

SHA256
a4efbdb2ce55788ffe92a244cb775efd475526ef5b61ad78de2bcdfaddac7041

SHA512
45b15ade68e0a90ea7300aeb6dca9bc9e347a63dba5ce72a635957564d1bdf0b1584a5e34191916498850fc7b3b7ecfbcbfcb246b39dbf59d47f66bc825c6fd2

Download Submit