1186b5b49e01796f359fc0f584aeef545083cb6bc6d3ebb1a158e1b67fdfa5b8

Analysis

max time kernel
114s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 10:42

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General

Target
40a8278ddc516f38960e65e87c5d58f0N.exe
Size 237KB
Sample240821-mr1vsaxfpr
SHA256 1186b5b49e01796f359fc0f584aeef545083cb6bc6d3ebb1a158e1b67fdfa5b8
MD5 40a8278ddc516f38960e65e87c5d58f0
SHA1 4590ef33d7c8ada7b6d0680c825c9cf61a203f22
SHA512 8d6641611bab5439dc409ba2a8d91fe20ad296298f32cebee29db1bef864a42e33afaa083e08a4b0b4a613f3ebd0bc439e3e0fe138edb1452161fc232097f7d0
SSDEEP 6144:0A2P27yTAnKGw0hjFhSR/W1nyAJ9v0pMtRCpYQ:0ATuTAnKGwUAWVycQqgj
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

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
2216	1180	WerFault.exe	108
4304	1724	WerFault.exe	90

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	40a8278ddc516f38960e65e87c5d58f0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1724	40a8278ddc516f38960e65e87c5d58f0N.exe
1724	40a8278ddc516f38960e65e87c5d58f0N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1180	winver.exe
1724	40a8278ddc516f38960e65e87c5d58f0N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3460	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 1180	1724	40a8278ddc516f38960e65e87c5d58f0N.exe	108
PID 1724 wrote to memory of 1180	1724	40a8278ddc516f38960e65e87c5d58f0N.exe	108
PID 1724 wrote to memory of 1180	1724	40a8278ddc516f38960e65e87c5d58f0N.exe	108
PID 1724 wrote to memory of 1180	1724	40a8278ddc516f38960e65e87c5d58f0N.exe	108
PID 1180 wrote to memory of 3460	1180	winver.exe	56
PID 1724 wrote to memory of 3460	1724	40a8278ddc516f38960e65e87c5d58f0N.exe	56
PID 1724 wrote to memory of 2676	1724	40a8278ddc516f38960e65e87c5d58f0N.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2676

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3460
- C:\Users\Admin\AppData\Local\Temp\40a8278ddc516f38960e65e87c5d58f0N.exe
  "C:\Users\Admin\AppData\Local\Temp\40a8278ddc516f38960e65e87c5d58f0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1724
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1180
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1180 -s 300
      4⤵
      Program crash
      PID:2216
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 872
    3⤵
    - Program crash
    PID:4304

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3364,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
1⤵
PID:5012

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1180 -ip 1180
1⤵
PID:532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1724 -ip 1724
1⤵
PID:4208

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

Replay Monitor

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Downloads

memory/1724-16-0x0000000005820000-0x0000000006220000-memory.dmp

Download

memory/1724-12-0x0000000000400000-0x000000000043F000-memory.dmp

Download

memory/1724-3-0x0000000003D80000-0x0000000003D81000-memory.dmp

Download

memory/1724-4-0x0000000003D80000-0x0000000003D81000-memory.dmp

Download

memory/1724-5-0x0000000003D80000-0x0000000003D81000-memory.dmp

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memory/1724-6-0x0000000003D80000-0x0000000003D81000-memory.dmp

Download

memory/1724-7-0x0000000003D80000-0x0000000003D81000-memory.dmp

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memory/1724-8-0x0000000003D80000-0x0000000003D81000-memory.dmp

Download

memory/1724-2-0x00000000044F0000-0x00000000044F1000-memory.dmp

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memory/1724-22-0x0000000004710000-0x0000000005812000-memory.dmp

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memory/1724-24-0x0000000004710000-0x0000000004D68000-memory.dmp

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memory/1724-20-0x0000000005820000-0x0000000006220000-memory.dmp

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memory/1724-1-0x0000000004710000-0x0000000004D68000-memory.dmp

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memory/2676-19-0x00000000001A0000-0x00000000001A6000-memory.dmp

Download

memory/2676-25-0x00000000001A0000-0x00000000001A6000-memory.dmp

Download

memory/3460-17-0x0000000002070000-0x0000000002076000-memory.dmp

Download

memory/3460-11-0x0000000002060000-0x0000000002066000-memory.dmp

Download

memory/3460-10-0x0000000002060000-0x0000000002066000-memory.dmp

Download