f0af8b68883684876d397f524563dd915eab084cce1ec6264d9ece98bc585e20

Analysis

max time kernel
114s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/08/2024, 04:27

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General

Target
e19d918f709ffdc68870dd36d055f130N.exe
Size 225KB
Sample240804-e3ahza1bke
SHA256 f0af8b68883684876d397f524563dd915eab084cce1ec6264d9ece98bc585e20
MD5 e19d918f709ffdc68870dd36d055f130
SHA1 15cb733261378c1254b7cf815b1e37f9c731ae9e
SHA512 9c2ee98fc155837fd57d2d63028ce4f4ef4d8aad6a2e73a57ff753e8bdd27dcf850abfeb05090d9e83572d11b3d159b8e167294748093a4bff97759bb4be588d
SSDEEP 6144:gA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:gATuTAnKGwUAW3ycQqgf
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
3012	4624	WerFault.exe	98
3460	4552	WerFault.exe	89

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	e19d918f709ffdc68870dd36d055f130N.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
4552	e19d918f709ffdc68870dd36d055f130N.exe
4552	e19d918f709ffdc68870dd36d055f130N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4624	winver.exe
4552	e19d918f709ffdc68870dd36d055f130N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3576	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 4624	4552	e19d918f709ffdc68870dd36d055f130N.exe	98
PID 4552 wrote to memory of 4624	4552	e19d918f709ffdc68870dd36d055f130N.exe	98
PID 4552 wrote to memory of 4624	4552	e19d918f709ffdc68870dd36d055f130N.exe	98
PID 4552 wrote to memory of 4624	4552	e19d918f709ffdc68870dd36d055f130N.exe	98
PID 4624 wrote to memory of 3576	4624	winver.exe	56
PID 4552 wrote to memory of 3576	4552	e19d918f709ffdc68870dd36d055f130N.exe	56
PID 4552 wrote to memory of 2604	4552	e19d918f709ffdc68870dd36d055f130N.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2604

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3576
- C:\Users\Admin\AppData\Local\Temp\e19d918f709ffdc68870dd36d055f130N.exe
  "C:\Users\Admin\AppData\Local\Temp\e19d918f709ffdc68870dd36d055f130N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4552
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4624
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4624 -s 300
      4⤵
      Program crash
      PID:3012
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4552 -s 952
    3⤵
    - Program crash
    PID:3460

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=4616,i,15336851255456239337,16379811035920490645,262144 --variations-seed-version --mojo-platform-channel-handle=4216 /prefetch:8
1⤵
PID:1116

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4624 -ip 4624
1⤵
PID:2596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4552 -ip 4552
1⤵
PID:748

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

memory/2604-13-0x0000000000820000-0x0000000000826000-memory.dmp

Download

memory/2604-19-0x0000000000820000-0x0000000000826000-memory.dmp

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memory/3576-4-0x0000000000E70000-0x0000000000E76000-memory.dmp

Download

memory/3576-5-0x0000000000E70000-0x0000000000E76000-memory.dmp

Download

memory/3576-11-0x0000000000E80000-0x0000000000E86000-memory.dmp

Download

memory/4552-1-0x0000000004270000-0x00000000048C8000-memory.dmp

Download

memory/4552-2-0x0000000004150000-0x0000000004151000-memory.dmp

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memory/4552-6-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/4552-10-0x0000000005780000-0x0000000006180000-memory.dmp

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memory/4552-15-0x0000000005780000-0x0000000006180000-memory.dmp

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memory/4552-18-0x0000000004270000-0x00000000048C8000-memory.dmp

Download