fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f

Analysis

max time kernel
149s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 13:33

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General

Target

fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe
Size

65KB
MD5

ef4302b71e0ace8f1ac8fc27dc8f0a80
SHA1

f5497cd6c9e7a00535b04f8c004c1627bc66370f
SHA256

fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f
SHA512

ec1a1172d15833d1d36ae4801779917626f2f13c307d8348c841d22b567adbfe16fa634ed3a3c99285a8fee963bbd27e0c4803f52538482aa6c83f26ddfdd94f
SSDEEP

1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGh4X:NAoglOwvl4ulkP6vghzwYu7vih9GueIX

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

microsofthelp.exe

pid	Process
1620	microsofthelp.exe

Executes dropped EXE 1 IoCs

Processes:

microsofthelp.exe

pid	Process
1620	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe

Drops file in Windows directory 2 IoCs

Processes:

fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exemicrosofthelp.exe

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.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

Processes:

fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exemicrosofthelp.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe

description	pid	Process	procid_target
PID 4680 wrote to memory of 1620	4680	fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe	83
PID 4680 wrote to memory of 1620	4680	fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe	83
PID 4680 wrote to memory of 1620	4680	fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe	83

C:\Users\Admin\AppData\Local\Temp\fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe
"C:\Users\Admin\AppData\Local\Temp\fd783c1c7b4df770019b6b324ab7752556495937c51fd9f1bf2f28fee08e066f.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4680
- 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:1620

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
65KB

MD5
f8743dcd57072a7347670f599f400acb

SHA1
82a7c40057885f98212aa73138e76d4d16b85d5b

SHA256
05b6bee41889fc114289a3bfc8b37bf047e8b3e9110272c3b00287bf82f8356e

SHA512
36f3d127eea57eb3ad202e4ab4b8fc18865f2c2cc484380b6ead7e68bcf68e244598f3b7a1c7e1cfefc4062ef75d57adaad2e64705b41a225245e612313a57fd

Download Submit
memory/1620-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4680-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4680-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download