b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65

Analysis

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

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17/10/2024, 11:46

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General

Target

b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.exe
Size

68KB
MD5

7e3488fd74276c1f7df3951e9d2cd8b0
SHA1

157bb3f8ea7d21e0736d6f4ec386c59842c5c6a8
SHA256

b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65
SHA512

76157b43154cd28e8403616e3bef8a3c1d3face231ac10bfcfb58d638f831c6288aaea6982a7fef1c716aa24464848cdff19831bcc788183828809838301589d
SSDEEP

1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+uhIehXeh+:NAoglOwvl4ulkP6vghzwYu7vih9GueI6

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2736	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.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	b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2736	2276	b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.exe	30
PID 2276 wrote to memory of 2736	2276	b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.exe	30
PID 2276 wrote to memory of 2736	2276	b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.exe	30
PID 2276 wrote to memory of 2736	2276	b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.exe	30

C:\Users\Admin\AppData\Local\Temp\b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.exe
"C:\Users\Admin\AppData\Local\Temp\b1f817642ccec39022cffd5b237d13e151f934485252e4786f33791d1f0a4a65N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:2736

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
68KB

MD5
3199555d80bd35326d2f98965cb54076

SHA1
d835de48eb7baecafa1fd6b5437639193fcb4468

SHA256
c415d7250d4cb3aad8f1997384e5ad25de51d3a3e2f0b2eec4d696d7fa1847a5

SHA512
e488a3d7b555431207bf4e45b627955e0d9524ceb64ff58f5e05df01f4bd2bf186e2c4c7efac7978ef3c5f578394c50bc28c99c5dc9844ee091a17ed4ad50750

Download Submit
memory/2276-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2276-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2736-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2736-10-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads