27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2024, 18:24

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General

Target

27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537N.exe
Size

40KB
MD5

d0b5663caf2c303d2afa84715fd3b940
SHA1

532a61dfcecd85d88f165088c35ee97e3839a6c5
SHA256

27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537
SHA512

fd7460b8a3964fe102d7760ca478a55758eee132520863d4757c68636578ec79dcf48728ab1655efb5a8cd72fc645a66fa8f4b531edd2bff348f69fce345c6bc
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+EmkcG:e6q10k0EFjed6rqJ+6vghzwYu7vih9GL

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2968	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2968	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"	27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537N.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.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	27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4200 wrote to memory of 2968	4200	27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537N.exe	91
PID 4200 wrote to memory of 2968	4200	27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537N.exe	91
PID 4200 wrote to memory of 2968	4200	27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537N.exe	91

C:\Users\Admin\AppData\Local\Temp\27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537N.exe
"C:\Users\Admin\AppData\Local\Temp\27f8d2e888195c35e80daa4f1d7e0429151c180f7212006bf029ba472389f537N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4200
- 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:2968

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=4120,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=4036 /prefetch:8
1⤵
PID:1020

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
40KB

MD5
6422e1a2d39d91f3cfff81a0a03f012f

SHA1
d44a0ec214c00ee92d3a8a1b55bc69836e36ccb1

SHA256
917e57b925be0029b978bd007f5feaf49986a6ecd31c13f343a0c7e56f45d157

SHA512
b52d687fa62d038602381dae62ecf7ea291f8f302a1effe038244ed6ac8d2ecaeade536a6ea4da8e37093c1f7d81fde9fe28b3863924069fcb500b3f7f0ca379

Download Submit
memory/2968-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2968-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4200-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4200-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads