c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797d

Analysis

max time kernel
119s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/10/2024, 11:13

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General

Target
c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797dN.exe
Size 65KB
Sample241006-nbw3bsvgnb
SHA256 c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797d
MD5 d3c7831b718d397bd863e4f57da3e250
SHA1 fcb0c40a292f6fc93b4fbd14c52f043066b8b471
SHA512 d47314173ced802e645ebbf360505d69a7d2417c5cec521df8bfe1cbe096837ecc5ebae99f5d2d92155b16de2840b13447094136dd6704d0c5719ca383efe7f4
SSDEEP 1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbRJhhqHihI4:NAoglOwvl4ulkP6vghzwYu7vih9GueIa
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3296	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3296	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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797dN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797dN.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 3296	1716	c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797dN.exe	82
PID 1716 wrote to memory of 3296	1716	c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797dN.exe	82
PID 1716 wrote to memory of 3296	1716	c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797dN.exe	82

C:\Users\Admin\AppData\Local\Temp\c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797dN.exe
"C:\Users\Admin\AppData\Local\Temp\c286c49dce9443a2790b23ff88b065c5a502c73359db8ab82809919da9b1797dN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3296

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

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 65KB
SHA256 ef7cfbec2395a73fed290a74e40f913c78a31c02cb1bd211172fb3cb746cab04
MD5 75e995b59c9be767be5728b8bcb3db34
SHA1 b6799803e84cdf6257fc10e1eb5d316e5653f32f
SHA512 bec99e97fb65125b9d3f6093446a7ade362c6e82ba06ec59297440bb9bb595b43179a7780a5b3fe2a7605afdd2fea50d3fe4a70a56288b5725ece319f1cd6fe5
SSDEEP 1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbRJhhqHihII:NAoglOwvl4ulkP6vghzwYu7vih9GueI6
MD5 SHA1 SHA512 SSDEEP

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memory/1716-0-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/1716-5-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/3296-6-0x0000000000400000-0x000000000040F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads