49c33a9bb9e5ffbe3a86d33ae3fb6c58633b81aad43547591be10126841ef6d0

Analysis

max time kernel
118s
max time network
115s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
20/08/2024, 17:03

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General

Target

a6b7ad43678fd4beb5910c67a637a6b0N.exe
Size

159KB
MD5

a6b7ad43678fd4beb5910c67a637a6b0
SHA1

e28cdb51e85c9edd29cb7c6099ae29bef4991325
SHA256

49c33a9bb9e5ffbe3a86d33ae3fb6c58633b81aad43547591be10126841ef6d0
SHA512

50f03fc12e96be7cca21a1ff9a391fbd9eba3f1af926994b1f72182fb008cd4d3658230c3a710747a2d6dc8da477f6cd705a6bc85fcb399994ec190fd99ebe54
SSDEEP

3072:tx1TajppFJN7hyH8He6am2iQPgpKoVjM3N9XZbcqZcquHRg:r1TaFpR7UIttrQGvC991c+cD

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2232	nusb3mon.exe
1768	nusb3mon.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\nusb3mon = "\"C:\\Users\\Admin\\AppData\\Roaming\\nusb3mon.lnk\""	nusb3mon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\nusb3mon = "\"C:\\Users\\Admin\\AppData\\Roaming\\nusb3mon.lnk\""	userinit.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2160 set thread context of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2232 set thread context of 1768	2232	nusb3mon.exe	30
PID 1768 set thread context of 2252	1768	nusb3mon.exe	31
PID 2252 set thread context of 1720	2252	userinit.exe	32

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\c39b355	a6b7ad43678fd4beb5910c67a637a6b0N.exe
File created	C:\Windows\nusb3mon.exe	a6b7ad43678fd4beb5910c67a637a6b0N.exe
File opened for modification	C:\Windows\nusb3mon.exe	a6b7ad43678fd4beb5910c67a637a6b0N.exe
File opened for modification	C:\Windows\c39b355	explorer.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6b7ad43678fd4beb5910c67a637a6b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6b7ad43678fd4beb5910c67a637a6b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nusb3mon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nusb3mon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	userinit.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1768	nusb3mon.exe
1768	nusb3mon.exe
2252	userinit.exe
2252	userinit.exe
2252	userinit.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2052	a6b7ad43678fd4beb5910c67a637a6b0N.exe
Token: SeDebugPrivilege	2052	a6b7ad43678fd4beb5910c67a637a6b0N.exe
Token: SeSecurityPrivilege	1768	nusb3mon.exe
Token: SeDebugPrivilege	1768	nusb3mon.exe
Token: SeSecurityPrivilege	2252	userinit.exe
Token: SeDebugPrivilege	2252	userinit.exe
Token: SeSecurityPrivilege	1720	explorer.exe
Token: SeDebugPrivilege	1720	explorer.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2160 wrote to memory of 2052	2160	a6b7ad43678fd4beb5910c67a637a6b0N.exe	28
PID 2052 wrote to memory of 2232	2052	a6b7ad43678fd4beb5910c67a637a6b0N.exe	29
PID 2052 wrote to memory of 2232	2052	a6b7ad43678fd4beb5910c67a637a6b0N.exe	29
PID 2052 wrote to memory of 2232	2052	a6b7ad43678fd4beb5910c67a637a6b0N.exe	29
PID 2052 wrote to memory of 2232	2052	a6b7ad43678fd4beb5910c67a637a6b0N.exe	29
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 2232 wrote to memory of 1768	2232	nusb3mon.exe	30
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 1768 wrote to memory of 2252	1768	nusb3mon.exe	31
PID 2252 wrote to memory of 1720	2252	userinit.exe	32
PID 2252 wrote to memory of 1720	2252	userinit.exe	32
PID 2252 wrote to memory of 1720	2252	userinit.exe	32
PID 2252 wrote to memory of 1720	2252	userinit.exe	32
PID 2252 wrote to memory of 1720	2252	userinit.exe	32
PID 2252 wrote to memory of 1720	2252	userinit.exe	32
PID 2252 wrote to memory of 1720	2252	userinit.exe	32
PID 2252 wrote to memory of 1720	2252	userinit.exe	32
PID 2252 wrote to memory of 1720	2252	userinit.exe	32
PID 2252 wrote to memory of 1720	2252	userinit.exe	32

C:\Users\Admin\AppData\Local\Temp\a6b7ad43678fd4beb5910c67a637a6b0N.exe
"C:\Users\Admin\AppData\Local\Temp\a6b7ad43678fd4beb5910c67a637a6b0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Users\Admin\AppData\Local\Temp\a6b7ad43678fd4beb5910c67a637a6b0N.exe
  "C:\Users\Admin\AppData\Local\Temp\a6b7ad43678fd4beb5910c67a637a6b0N.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2052
- - C:\Windows\nusb3mon.exe
    "C:\Windows\nusb3mon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2232
  - - C:\Windows\nusb3mon.exe
      "C:\Windows\nusb3mon.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1768
    - - C:\Windows\syswow64\userinit.exe
        
        "C:\Windows\syswow64\userinit.exe"
        5⤵
        Adds Run key to start application
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:2252
      - C:\Windows\syswow64\explorer.exe
        
        "C:\Windows\syswow64\explorer.exe"
        6⤵
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:1720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

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:\Users\Admin\AppData\Roaming\nusb3mon.lnk

Filesize
741B

MD5
038b2791b4234ffa9493bf0459066013

SHA1
86e088e5bbe75b6f7f54372b8791dd4e6633c64c

SHA256
6e4faa1aba0f9d012d8655f1f5256551b5adeaa03441a233068142720ef480aa

SHA512
3926a420076dfbe37657a9f901bb8c9a1087119f8c492ddf359d9554c24586ebc28776c1a301b4ab8078584a559cb75b8f8879fae032983c8a7ae800b18442cd

Download Submit
C:\Windows\c39b355

Filesize
1KB

MD5
dc0c5e9e5dea1066c1f81d950ea68b66

SHA1
e839da4fd2ca627622711b2041c1a0f6c28288ea

SHA256
8d7d36dafa8aef9b7fbd9bb269356203932b0297c615c5955cdff8bd94e52d56

SHA512
01ddc2043e569aecaf30ee3f63579be3d99e245c34151a3d0bc5f8e5042561b800fe15cf0261e31dd514cb0c91e6f2a5ce3e3d4bd92d6086531bcca5105d6b1a

Download Submit
C:\Windows\nusb3mon.exe

Filesize
159KB

MD5
2256cdb95672025d54fb1479fd719fa5

SHA1
8d44c59546799170876d7acd75fc05791cf39150

SHA256
2f5a13f47ec360a05a4fa7fa94527ece1977b14d8bcd839d3cc46d4233664d10

SHA512
fbd582122a0cd8c62b23164442e1cafd4871cbee8f01017e20347f1113c7087b9fafe087976ab25519354b30a00a776e091d786a84bdac523caf41a8ab63b62a

Download Submit
memory/1768-297-0x0000000000120000-0x0000000000133000-memory.dmp

Filesize
76KB

Download
memory/1768-423-0x0000000000120000-0x0000000000133000-memory.dmp

Filesize
76KB

Download
memory/2052-32-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-41-0x0000000000BA0000-0x0000000000CB0000-memory.dmp

Filesize
1.1MB

Download
memory/2052-59-0x0000000000BA0000-0x0000000000CA0000-memory.dmp

Filesize
1024KB

Download
memory/2052-67-0x0000000000110000-0x0000000000167000-memory.dmp

Filesize
348KB

Download
memory/2052-65-0x0000000000110000-0x0000000000167000-memory.dmp

Filesize
348KB

Download
memory/2052-63-0x0000000000110000-0x0000000000167000-memory.dmp

Filesize
348KB

Download
memory/2052-61-0x0000000000110000-0x0000000000167000-memory.dmp

Filesize
348KB

Download
memory/2052-57-0x0000000000BA0000-0x0000000000CA0000-memory.dmp

Filesize
1024KB

Download
memory/2052-53-0x0000000000BA0000-0x0000000000CA0000-memory.dmp

Filesize
1024KB

Download
memory/2052-55-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/2052-54-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-51-0x0000000000BA0000-0x0000000000CA0000-memory.dmp

Filesize
1024KB

Download
memory/2052-49-0x0000000000BA0000-0x0000000000CA0000-memory.dmp

Filesize
1024KB

Download
memory/2052-47-0x0000000000BA0000-0x0000000000CB0000-memory.dmp

Filesize
1.1MB

Download
memory/2052-43-0x0000000000BA0000-0x0000000000CB0000-memory.dmp

Filesize
1.1MB

Download
memory/2052-28-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-35-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-34-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-33-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-13-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2052-31-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-30-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-36-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-29-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2052-26-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-45-0x0000000000BA0000-0x0000000000CB0000-memory.dmp

Filesize
1.1MB

Download
memory/2052-39-0x0000000000BA0000-0x0000000000CB0000-memory.dmp

Filesize
1.1MB

Download
memory/2052-14-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2052-38-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-37-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-25-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-24-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-22-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-20-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-18-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-16-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-27-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2052-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2052-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2052-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2052-3-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2052-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2052-409-0x0000000000070000-0x0000000000083000-memory.dmp

Filesize
76KB

Download
memory/2160-0-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download