79651e8616f701122275edd7444d7f62478bc2a786d204ec2c59e9f01a5d417b

Analysis

max time kernel
149s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-11-2024 17:08

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General

Target

virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.exe
Size

54KB
MD5

ca6b0e41f6273b8c6a022729b7a7efd0
SHA1

5e0d21098a203223ee7572808364085cba6bcd5d
SHA256

993b235bdbbc30ac6f56f1f38c8193d9bf510dbb2f35379dea5f02dae33908ce
SHA512

2b04e49c6ef1fd2e206a660b285abf953c4675aaaccf7a1d972063cb88eb40eff30484efc9d57ca73e91b5ee04c29d9a1c7549bb7d061f7861005c53ff3c2dca
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIN:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVb

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2772	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.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	virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2772	2400	virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.exe	30
PID 2400 wrote to memory of 2772	2400	virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.exe	30
PID 2400 wrote to memory of 2772	2400	virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.exe	30
PID 2400 wrote to memory of 2772	2400	virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.exe	30

C:\Users\Admin\AppData\Local\Temp\virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_ca6b0e41f6273b8c6a022729b7a7efd0.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:2772

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
54KB

MD5
e900b40305e21f8bedf310a0438a416b

SHA1
8babde992e32bc6c40e7f317929ae6e7854b2745

SHA256
a186e14b0fe964400275fcecf80ccca289a885e8ffd8159a684c4872da257b1d

SHA512
1c4823c83a52e398e42fb37fb4f5a4d61c200eeedbf4472357b66271491401c3c0258226f94cb043e18615f1957916aea61bfe2855d8b80f49985f5af1082215

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

Filesize
12KB

Download
memory/2400-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2772-9-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads