9e2f1507f2e6810573f563f2b304844b561d6c8f927d5f63d3ca28ed21d758f6

Analysis

max time kernel
119s
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
23/08/2024, 18:50

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General

Target

bb3829b8b325af7e5fd8b8382222f3f0N.exe
Size

37KB
MD5

bb3829b8b325af7e5fd8b8382222f3f0
SHA1

ba54774b9453f29dc0435e62596f454bc1f7dbcf
SHA256

9e2f1507f2e6810573f563f2b304844b561d6c8f927d5f63d3ca28ed21d758f6
SHA512

a36323bdf431300bccb2eaa799b1bc4b9142d5f0f994f1460612c31fd0a88b7f546694343b2c11440f05daba0eae325d18cc9cfad6383051333b7b6c48d001aa
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6v8tvGE9UHrSdghj8bvHRIkhbUIchUh8F:e6q10k0EFjed6rqJ+6v8tvGE9UHrSdgD

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4104	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4104	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	bb3829b8b325af7e5fd8b8382222f3f0N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe
File created	C:\Windows\microsofthelp.exe	bb3829b8b325af7e5fd8b8382222f3f0N.exe

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	bb3829b8b325af7e5fd8b8382222f3f0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 4104	4632	bb3829b8b325af7e5fd8b8382222f3f0N.exe	91
PID 4632 wrote to memory of 4104	4632	bb3829b8b325af7e5fd8b8382222f3f0N.exe	91
PID 4632 wrote to memory of 4104	4632	bb3829b8b325af7e5fd8b8382222f3f0N.exe	91

C:\Users\Admin\AppData\Local\Temp\bb3829b8b325af7e5fd8b8382222f3f0N.exe
"C:\Users\Admin\AppData\Local\Temp\bb3829b8b325af7e5fd8b8382222f3f0N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:4104

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=4156,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4056 /prefetch:8
1⤵
PID:1828

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\microsofthelp.exe

Filesize
37KB

MD5
6f0ae008f41b4c6b879e890523e63cc1

SHA1
9eedca96852019cdb5d3155494dc33de7d0b869d

SHA256
77934297cb4ad26b8488d7fc190207e59f3452ddaff82cf056b983746eab4696

SHA512
2fb5dfc9abe8f92caaad711d059a8012737be420552cae966d1fa44acfafb46bdc5da93a88338c5325e1cf87dd314420d0ad566cb21f1ad9eea0adb0caf3e13f

Download Submit
memory/4104-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4104-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4632-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4632-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads