c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3

Analysis

max time kernel
95s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/09/2024, 11:19

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General

Target

c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3N.exe
Size

63KB
MD5

b4479335318fc727b7572dbe9d560c60
SHA1

9137d060833a644d68289e45965ba89d56b5bc0f
SHA256

c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3
SHA512

2448fd9571fa54d31bb31bbf321728e209197548bf23523f705505bf2914009492d212befb2a1ff56cbb467f5e552ad3957fdc603dbaa1ae62afbf40d4d7e2f8
SSDEEP

768:r8eRH+MlFh0pDpuJ84WEi+U6sh7iQroCHmyf+RjFBSuB2XpfsPpzSd3fb:r9l+W8xFt6sh7iQroCoRB0u0sPpzStT

Score

7^/10

discovery upx

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3N.exe

Executes dropped EXE 1 IoCs

pid	Process
3212	bkgrnd.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3712-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x000900000002347c-7.dat	upx
behavioral2/memory/3712-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/3212-19-0x0000000000400000-0x000000000040F000-memory.dmp	upx

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 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	bkgrnd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3712 wrote to memory of 3212	3712	c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3N.exe	82
PID 3712 wrote to memory of 3212	3712	c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3N.exe	82
PID 3712 wrote to memory of 3212	3712	c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3N.exe	82

C:\Users\Admin\AppData\Local\Temp\c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3N.exe
"C:\Users\Admin\AppData\Local\Temp\c08bfc4ed415f9f13dd89999e2317891d4cb47b5c4d229c36e080d2f7c95cbe3N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3712
- C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe
  "C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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:\Users\Admin\AppData\Local\Temp\bkgrnd.exe

Filesize
63KB

MD5
2d9a3b04f0d8b03a5cb6ac1873739a90

SHA1
d896c67c46164ebed23982c5a455d00bf4677efa

SHA256
2f97813a6dfe5a17beade2c516f21a88ef700cc88e711fc60bd96ddcc97f4eb6

SHA512
c7dcddb57ef5f8e2a55e1c670330a05ddb9e6fedca7dc390f8f36ee80b357a6f72340eaa38fae5bd907719a986532cc8effe35fe85fafcc13103e4c198e0e38d

Download Submit
memory/3212-19-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3712-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3712-1-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/3712-2-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/3712-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download