7a65ea84978d653141d5fe65a05f59831cd7be417ae8c630a4e584647e92b35c

Analysis

max time kernel
113s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-12-2024 10:46

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General

Target

virussign.com_00a519bb1b7284727a665faeb741c5e3.exe
Size

101KB
MD5

00a519bb1b7284727a665faeb741c5e3
SHA1

4ae2011819af55c9f94a4ffb042ce5d052930f6a
SHA256

9f8837466bc78d70a12537e035547b584efce0075db99ed37b6b213ef4a4b8c1
SHA512

c7feede61cd71af5d8646e9e0c950a48b60895f4aa3befb5b874b8db469e6b018de4826c4fdd1f294d350bba0c05ae82da772e09696a7dd334f8c26c53d70009
SSDEEP

1536:0GYU/W2FHG6jMauSV3ixJHABLrmhH7i9CO+WHg7zRZICrWaGZh7j:0fU/Wr6jMauSuiWNi9CO+WARJrWNZ1

Score

7^/10

defense_evasion discovery persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	virussign.com_00a519bb1b7284727a665faeb741c5e3.exe

Executes dropped EXE 1 IoCs

pid	Process
5088	wuauclt.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	virussign.com_00a519bb1b7284727a665faeb741c5e3.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	virussign.com_00a519bb1b7284727a665faeb741c5e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 5088	3928	virussign.com_00a519bb1b7284727a665faeb741c5e3.exe	87
PID 3928 wrote to memory of 5088	3928	virussign.com_00a519bb1b7284727a665faeb741c5e3.exe	87
PID 3928 wrote to memory of 5088	3928	virussign.com_00a519bb1b7284727a665faeb741c5e3.exe	87
PID 3928 wrote to memory of 1452	3928	virussign.com_00a519bb1b7284727a665faeb741c5e3.exe	93
PID 3928 wrote to memory of 1452	3928	virussign.com_00a519bb1b7284727a665faeb741c5e3.exe	93
PID 3928 wrote to memory of 1452	3928	virussign.com_00a519bb1b7284727a665faeb741c5e3.exe	93

C:\Users\Admin\AppData\Local\Temp\virussign.com_00a519bb1b7284727a665faeb741c5e3.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_00a519bb1b7284727a665faeb741c5e3.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3928
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5088
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\virussign.com_00a519bb1b7284727a665faeb741c5e3.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1452

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

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Update\wuauclt.exe

Filesize
101KB

MD5
d2a35369278b2beeb77390dd4aa124ae

SHA1
b30de262af2e69a75a7aecd4657bc160bb34f1cc

SHA256
3ddbdf8470cf4e74ac63452e16125b68bcd115147f65d50f6ee1da3aadc14281

SHA512
d6cbb14bc1b5ffb63c4622f933368a556d8544e73fea0f21256fd8f50442ef2a2dc79af47f2fcfb209a665c2601db74c31fed52ae10fa959ba145a91c6c10db1

Download Submit
memory/3928-0-0x00000000001D0000-0x00000000001EF000-memory.dmp

Filesize
124KB

Download
memory/3928-6-0x00000000001D0000-0x00000000001EF000-memory.dmp

Filesize
124KB

Download
memory/3928-8-0x00000000001D0000-0x00000000001EF000-memory.dmp

Filesize
124KB

Download
memory/5088-4-0x0000000000070000-0x000000000008F000-memory.dmp

Filesize
124KB

Download
memory/5088-7-0x0000000000070000-0x000000000008F000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads