2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0c

Analysis

max time kernel
93s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/10/2024, 12:58

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General

Target

2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0cN.exe
Size

52KB
MD5

f90fee470aed4a8241597f95b051e410
SHA1

995005d5c92b46a37694a75b4296d1ff51104a4a
SHA256

2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0c
SHA512

238a98016696557b4af45e91405613b4b3f20d69cc1e0c0ed6f29251e17d695a630a99023f9d3dceb8f1cfc056ae4be62475720fbce1a03e2bccc5ae4fe9c0c2
SSDEEP

768:n8eRH+MlFh0pXrL4i6sh7iQroCHmmbk2VZW:n9l+Gi6sh7iQroCLVZW

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0cN.exe

Executes dropped EXE 1 IoCs

pid	Process
3508	bkgrnd.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2016-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x000c000000023b08-7.dat	upx
behavioral2/memory/2016-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/3508-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/3508-23-0x0000000000400000-0x000000000040F000-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	2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bkgrnd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 3508	2016	2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0cN.exe	85
PID 2016 wrote to memory of 3508	2016	2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0cN.exe	85
PID 2016 wrote to memory of 3508	2016	2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0cN.exe	85

C:\Users\Admin\AppData\Local\Temp\2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0cN.exe
"C:\Users\Admin\AppData\Local\Temp\2c87057498c4ea5979a012bd24c7518252eae82a4347cb64aff2c7448da77b0cN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- 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:3508

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
52KB

MD5
f2d71eeb97e8fd6fb598b217e52187ad

SHA1
338c8cbe301a3411b0150c463ef38fe226dc3449

SHA256
ad37a140d9d3e3e609e492f55fff79f8ee52418aa234fee19e4324d27e12f522

SHA512
122b608e4f5f09cd2bfdca77f3baa8f20e5166b498e929cfb8f482799dd1d63a9d364e2a89f03cca3611ef673a7050cc05d89253a136ecdf763209c7e5a0695d

Download Submit
memory/2016-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2016-1-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/2016-2-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/2016-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3508-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3508-23-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download