f04afa122d919fe049eb055ab6d29f8a414b4041440af660895916b7e32f20a0

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-01-2025 18:47

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General

Target

virussign.com_eef74eda1855b3cf10300926cc0e0693.exe
Size

73KB
MD5

eef74eda1855b3cf10300926cc0e0693
SHA1

37dd25ea3a30c50e706ab4e9a3596d53f608cc6b
SHA256

dec299a87f673f6048d7e12ae6002802df7e45f3f746654edb64b03a2537549b
SHA512

38f0b5c597e323e9259ee80c4714c99ecd81f5d107205de65f08a74ab105f0b48f22070777fec7b3cfc35a799f70f105beff7414964e28a60fb898e5b98fc0ed
SSDEEP

1536:qAo0+j2d6rnJqlIUlizbR9XwzSPamvDsdHgHSIQEvTbWh7MzdPAxHyHfOdIRIRZl:qAoVl4lX8Pvw2PamvDsdHgHSIQEvTbWX

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3276	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3276	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	virussign.com_eef74eda1855b3cf10300926cc0e0693.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	virussign.com_eef74eda1855b3cf10300926cc0e0693.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	virussign.com_eef74eda1855b3cf10300926cc0e0693.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 3276	436	virussign.com_eef74eda1855b3cf10300926cc0e0693.exe	81
PID 436 wrote to memory of 3276	436	virussign.com_eef74eda1855b3cf10300926cc0e0693.exe	81
PID 436 wrote to memory of 3276	436	virussign.com_eef74eda1855b3cf10300926cc0e0693.exe	81

C:\Users\Admin\AppData\Local\Temp\virussign.com_eef74eda1855b3cf10300926cc0e0693.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_eef74eda1855b3cf10300926cc0e0693.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:436
- 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:3276

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
73KB

MD5
b507c0825ed7ff74a2357aa35fc214e5

SHA1
1af5a23d8805a4d85dd5f9b21f2a9d384227c1e1

SHA256
6671afd7ec21942bd2d1453882325991bbd276ba46dd8e58d91818c54b302592

SHA512
7287ee22501d73ca170f81896bb2d403760e8ab02244ac4c78fde5730e126d9b4975340ac8b29c68eb59be37b17dba90b0cee9434e42f0aa6530830ada85e69d

Download Submit
memory/436-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/436-5-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3276-6-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads