35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 06:52

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General

Target

35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.exe
Size

80KB
MD5

ff031dccc9627da1e43a714fc7d86cb0
SHA1

d41673a5aa35dbb1e7d9cb7a7912bae930644473
SHA256

35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47
SHA512

a10f91efa25cac0de4bff908fff13b5af09dfe75d839b00c4683483559dca158d38bbf2cf0eda38e744a5e1faddf79d08036c64c0ed671fbdd19555a39536627
SSDEEP

1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvP3OInvnHvvxIfhqhcGoI/s:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAs

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1780	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1780	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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.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	35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 1780	1392	35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.exe	31
PID 1392 wrote to memory of 1780	1392	35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.exe	31
PID 1392 wrote to memory of 1780	1392	35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.exe	31
PID 1392 wrote to memory of 1780	1392	35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.exe	31

C:\Users\Admin\AppData\Local\Temp\35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.exe
"C:\Users\Admin\AppData\Local\Temp\35a2c5330de423d57e937d62f91fcf9bdafa6c4c8b336920543073acb1b41e47N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1392
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:1780

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
80KB

MD5
e66bdff7a6ecb29e6007ba22b780aca7

SHA1
4d3db713f7bdbead96f3f2722a4856d65638fd81

SHA256
46d5cff0ebfa0598bc71366f7946f2e709b84aa881cb941bd208f2803ba58303

SHA512
2286aaf99f4371c9cbfe54471db5f70b85a881e65c9b8fc695e489652036d197ab26b81b9e87a9170c88d9f10cc628c40fe2db713510c9912bb4e32247e2f9c1

Download Submit
memory/1392-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1392-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1780-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1780-10-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads