54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1b

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 02:15

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General

Target

54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe
Size

53KB
MD5

e470d1a000734996239f7694cbc3bde0
SHA1

217e565242433505f48168496c81b2e7036e2a23
SHA256

54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1b
SHA512

9059e82ab517c0dead81858e01f95f9a74c65640832b395abd0a8c5f1cf6f53d9f86e882841fee83fd15bf4dd81a32178fd2cc25f401048cf786eea79b3e8b73
SSDEEP

1536:vNcg8r8Qm3Xu7Kp3StjEMjmLM3ztDJWZsXy4JzxPMk:V3XuJJjmLM3zRJWZsXy4JN

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2448	nuisii.exe

Loads dropped DLL 7 IoCs

pid	Process
3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe
3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe
2804	WerFault.exe
2804	WerFault.exe
2804	WerFault.exe
2804	WerFault.exe
2804	WerFault.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2652	3040	WerFault.exe	30
2804	2448	WerFault.exe	31

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	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nuisii.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe
2448	nuisii.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2448	3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe	31
PID 3040 wrote to memory of 2448	3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe	31
PID 3040 wrote to memory of 2448	3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe	31
PID 3040 wrote to memory of 2448	3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe	31
PID 3040 wrote to memory of 2652	3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe	32
PID 3040 wrote to memory of 2652	3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe	32
PID 3040 wrote to memory of 2652	3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe	32
PID 3040 wrote to memory of 2652	3040	54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe	32
PID 2448 wrote to memory of 2804	2448	nuisii.exe	33
PID 2448 wrote to memory of 2804	2448	nuisii.exe	33
PID 2448 wrote to memory of 2804	2448	nuisii.exe	33
PID 2448 wrote to memory of 2804	2448	nuisii.exe	33

C:\Users\Admin\AppData\Local\Temp\54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe
"C:\Users\Admin\AppData\Local\Temp\54eeb02e4794e7f9d0029f0fcaf95860cefe1598ced01d9d57d039ea55e52b1bN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\nuisii.exe
  "C:\Users\Admin\nuisii.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2448
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2448 -s 280
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3040 -s 528
  2⤵
  - Program crash
  PID:2652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\nuisii.exe

Filesize
53KB

MD5
8a532ea90c2d80ff862b5f4a821281ce

SHA1
1423fd3f42e585a05aac201da9cf668469beec9a

SHA256
56beedde9f150a42a88e38e27276fdae6e770680470fb49e8219e39fae7b5465

SHA512
b00a6a4f26ecc7da43ca7cd3d91dc0d95b858d1535f383b978cca6a16466797e863cddce1861ef2cc2eae12d1591cf31d5204d65b9bbe6ccf65247a405b8dffa

Download Submit
memory/2448-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2448-24-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3040-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3040-8-0x0000000003830000-0x0000000003842000-memory.dmp

Filesize
72KB

Download
memory/3040-25-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

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