77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6

Analysis

max time kernel
149s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 23:02

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General

Target

77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6.exe
Size

56KB
MD5

9375ba378f59e1d2c5e797ba66542603
SHA1

ef097436aac92e71bcdbcf3ffb51b08c5d2b876d
SHA256

77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6
SHA512

5c8b01169a12bb16e3e1109b4a0c0a747ee9ec344322b1372156b0427e908434f29d795659ac1e72403b5402d819946dc14c5b2b1e8010187161a4eb812b6aa1
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIl:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVr

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3864	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3864	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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6.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	77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 3864	3768	77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6.exe	82
PID 3768 wrote to memory of 3864	3768	77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6.exe	82
PID 3768 wrote to memory of 3864	3768	77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6.exe	82

C:\Users\Admin\AppData\Local\Temp\77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6.exe
"C:\Users\Admin\AppData\Local\Temp\77bac67cec4efacf467528c033f0136aed9439906a95c7978b8af0d874709ea6.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3768
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3864

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
56KB

MD5
e76787ac195fb6a78a578c4bf6b6275c

SHA1
481d27a1f999c2122d43e8d0dcc5e93851a41ec3

SHA256
afdbdfd69c49c9c4eb4b72947e6349e280ec88006d8ec3f60e85781b006c21d1

SHA512
66b711d9d23be1c2caa803ac0662e7178ece9c31b4415849c6341dcafc88de1a2fbf84e8907c6b02951ca841a828058f3f55aa97073118727b2233ad28d6cca3

Download Submit
memory/3768-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3768-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3864-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3864-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads