b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
30-11-2024 05:15

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General

Target

b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.exe
Size

47KB
MD5

ab93dc3faa2428647263a2c1a3e84d90
SHA1

6f39a6120adb6d561dcabf10f50e28480296e373
SHA256

b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41
SHA512

91fb1f84a96bcf1d1df6e0ad64c8838940d61e5e70eb4be5a944b11dffac92868018969c4e64b44caa0201a6aad947639238f9ac4cf6a28db54a0812ec9d1978
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhS:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYy

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2764	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2764	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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.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	b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2764	2668	b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.exe	31
PID 2668 wrote to memory of 2764	2668	b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.exe	31
PID 2668 wrote to memory of 2764	2668	b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.exe	31
PID 2668 wrote to memory of 2764	2668	b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.exe	31

C:\Users\Admin\AppData\Local\Temp\b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.exe
"C:\Users\Admin\AppData\Local\Temp\b8edf58a3c05071d0db11d0a00edb3eec2013dd5a1d98bfb2b3c22c82b63af41N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:2764

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
47KB

MD5
31f659d790ecb9c80f3eea95f9672bae

SHA1
0099aa4552431b2655af76bfbb123c33d58dfc1e

SHA256
bd87a3a6f8a808f6603a6ecec014643e0491d45327a0f2715b170b8659d8639a

SHA512
e0aff31eddc57d878dd18f6547e10ac8885d6d276776be7d182690dca7cd2ff6ca4e1e2b351d02400904dca0398dcf23a08646aa32b7a3dd9a0e59d25f0282fe

Download Submit
memory/2668-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2668-3-0x00000000001B0000-0x00000000001B3000-memory.dmp

Filesize
12KB

Download
memory/2668-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2764-9-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2764-11-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads