51c7d89dfa7597487599a10b9681a2a2da04fd4ed9b223ec3e6707bdd7c5b022

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22/08/2024, 01:30

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General

Target

b9042cc3e1aab98f8bf7ee0304907820N.exe
Size

42KB
MD5

b9042cc3e1aab98f8bf7ee0304907820
SHA1

66c18c724688767343e535744459fc786ebe1133
SHA256

51c7d89dfa7597487599a10b9681a2a2da04fd4ed9b223ec3e6707bdd7c5b022
SHA512

da2db5c877c69d1151f8a3775583ff7e9bab43968ca06a4e0a75e857fc07e276beb9ecdc45993bc94babbfeb26a275ca4153e3fef88cd6b9f37e643e0a1f9c5a
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhP:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYv

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2752	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2752	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-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b9042cc3e1aab98f8bf7ee0304907820N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b9042cc3e1aab98f8bf7ee0304907820N.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	b9042cc3e1aab98f8bf7ee0304907820N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2752	2012	b9042cc3e1aab98f8bf7ee0304907820N.exe	30
PID 2012 wrote to memory of 2752	2012	b9042cc3e1aab98f8bf7ee0304907820N.exe	30
PID 2012 wrote to memory of 2752	2012	b9042cc3e1aab98f8bf7ee0304907820N.exe	30
PID 2012 wrote to memory of 2752	2012	b9042cc3e1aab98f8bf7ee0304907820N.exe	30

C:\Users\Admin\AppData\Local\Temp\b9042cc3e1aab98f8bf7ee0304907820N.exe
"C:\Users\Admin\AppData\Local\Temp\b9042cc3e1aab98f8bf7ee0304907820N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:2752

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
42KB

MD5
544b35cc93bed769b22e51f8453b454b

SHA1
47764cb15e922ebbb9126fe7e41cdf70528dd43d

SHA256
e1bfd0146b0daea2d347147333f2e7f292641a7d14fdec3f232696137b6939a5

SHA512
ff1a462c3cefb331fc038177a3d50cb88fe3558383b674784ab8b6b462ec47c3f03b89f564d16542bf3e2f27ad1c4683c12ca08d1c53266b55794b4deb21dc5c

Download Submit
memory/2012-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2012-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2752-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2752-10-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads