ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8f

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
05-10-2024 17:22

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General

Target

ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe
Size

75KB
MD5

01f0bafb44350b69e99eb52c238d3e90
SHA1

0433d105c394651abaaba70725c2ccd14771931c
SHA256

ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8f
SHA512

74dacfa6710a4467fe2088311d7f4049e303d53ca23d01879a8a3f99cb1c516c3364c77ea45d54a364c3bc9dcf71149f9edc37ceaac3721ef6fe8ab984b5869b
SSDEEP

1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvP3OInvnHvvxIfhqhcGoI/e:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAe

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2520	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.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	ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2520	2240	ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe	28
PID 2240 wrote to memory of 2520	2240	ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe	28
PID 2240 wrote to memory of 2520	2240	ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe	28
PID 2240 wrote to memory of 2520	2240	ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe	28

C:\Users\Admin\AppData\Local\Temp\ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe
"C:\Users\Admin\AppData\Local\Temp\ef2d6ddd1ffd26883322d509dfa553261940c07ee988b373a3ce60be42891b8fN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:2520

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
76KB

MD5
3f7f64d0c8b524b6836c7562e1b5d112

SHA1
1b5653c0a6401ca794c09300015654fc94bdcf99

SHA256
18d7c929501c6c271fa8948982ebb4a70730fbc7d1d151e6a9a09d1e7c548b7c

SHA512
9a9d895093f2491763283f27e2d86981131903f3c98475ffe0a094cd4e3629d02a6f9fc22362fb4f9e6c5090c074e18d0bc7c281b6b6f13ea3183722d74b0bc9

Download Submit
memory/2240-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2240-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2520-9-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads