3e0fd65ce536e336e9623c0358d278c404e656d87722a3461947e4d8b47d6089

Analysis

max time kernel
89s
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
05/09/2024, 06:14

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General

Target

f60a531ffcf32b589db487f29415abd0N.exe
Size

61KB
MD5

f60a531ffcf32b589db487f29415abd0
SHA1

85a75d3abd7334d2f920d9056a5e1668f7e2b987
SHA256

3e0fd65ce536e336e9623c0358d278c404e656d87722a3461947e4d8b47d6089
SHA512

f9eaba74e0b0c357501fca0e04fd01242687fe044b44d69c441b68968a81f35d354fa99481095a92bfa8b75541024022659d87d1c1e94c52cfcce52f38e2b6df
SSDEEP

768:r8eRH+MlFh0pDpuJ84WEi+U6sh7iQroCHmyf+RjFBSuB2XpfsPpzSd3m:r9l+W8xFt6sh7iQroCoRB0u0sPpzStm

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	f60a531ffcf32b589db487f29415abd0N.exe

Executes dropped EXE 1 IoCs

pid	Process
4520	bkgrnd.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3608-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x0009000000023442-7.dat	upx
behavioral2/memory/3608-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/4520-17-0x0000000000400000-0x000000000040F000-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	f60a531ffcf32b589db487f29415abd0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bkgrnd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3608 wrote to memory of 4520	3608	f60a531ffcf32b589db487f29415abd0N.exe	85
PID 3608 wrote to memory of 4520	3608	f60a531ffcf32b589db487f29415abd0N.exe	85
PID 3608 wrote to memory of 4520	3608	f60a531ffcf32b589db487f29415abd0N.exe	85

C:\Users\Admin\AppData\Local\Temp\f60a531ffcf32b589db487f29415abd0N.exe
"C:\Users\Admin\AppData\Local\Temp\f60a531ffcf32b589db487f29415abd0N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3608
- 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:4520

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

Replay Monitor

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Downloads

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

Filesize
62KB

MD5
2f5bcafa2c0006d60fbd7af35b78fc37

SHA1
ff8353742372fd64853a45d4b2f651a41ebf657f

SHA256
6ad3061ff04fa2b9b9e77e830f9a978af765cd4975cf90f3a9235c3599682ec7

SHA512
ff0ffcb6c4bd57ba1e48fb7a7849c88908d9447f9282229634ff38aa4d6fca759537bcc6f92aa4402d7ac7240b774965c1f5d48f1df5a287e9d2c6ba6d052869

Download Submit
memory/3608-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3608-1-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/3608-2-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/3608-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4520-17-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download