73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-09-2024 03:07

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General

Target

73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.exe
Size

56KB
MD5

6b4958e7f5243c224f4d0ee94452ed40
SHA1

3c7d735323a38fbbb20fecfd735eb6c2ac098df3
SHA256

73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae
SHA512

b457fe1e3e6e00ed8fe575d1da5c1210d2b11f9e90a1f027934d418880bb2b593935a02594b20233815ea23ffa2bd725655a891ceee71f5f5a51fc0a493e8916
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIq:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVU

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1932	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1932	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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.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	73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 1932	2400	73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.exe	28
PID 2400 wrote to memory of 1932	2400	73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.exe	28
PID 2400 wrote to memory of 1932	2400	73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.exe	28
PID 2400 wrote to memory of 1932	2400	73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.exe	28

C:\Users\Admin\AppData\Local\Temp\73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.exe
"C:\Users\Admin\AppData\Local\Temp\73b2403811328f02e8def4b26503ead688e35e48e2996cb66bfb993d617b01ae.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:1932

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
57KB

MD5
2c513691c9e9337ef580d954c211d163

SHA1
fe984589bdca35db14689ca8f775153b54bdbf99

SHA256
8bcfe837cc2cfad94605c4e596ac763929d8214a1a3c8a7d1c4f36f2884e8763

SHA512
c099f27fcaef4e756d74e7014a4110cf8d99c18ade7269363f47a78e86a0cbf80785df01877cc52c9bc0933818b1aae831e2b30961744ffeccc31b0740a87e13

Download Submit
memory/1932-9-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2400-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2400-3-0x00000000001B0000-0x00000000001B3000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads