b1ed451db3b86a45bcc48c00fda33d242338c8c65004caa6bf4e807187249e4b

Analysis

max time kernel
94s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2024, 22:05

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General

Target

0ba81c0da14a6a9709d8574acb532110N.exe
Size

59KB
MD5

0ba81c0da14a6a9709d8574acb532110
SHA1

bb69cadfc6ceab7d9813809325bc115f3673ed92
SHA256

b1ed451db3b86a45bcc48c00fda33d242338c8c65004caa6bf4e807187249e4b
SHA512

526666fe72bd15ba8ef23ec739af0776ea665d13e887c9e3c63b2826f0c6cfc07cfaa7ecc8094be9028d5b2ba0e8ef4b60721c9524f080071ea219ee0185fa61
SSDEEP

768:r8eRH+MlFh0pDpuJ84WEi+U6sh7iQroCHmyf+RjFBSuB2Xpfs1v1:r9l+W8xFt6sh7iQroCoRB0u0sN1

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	0ba81c0da14a6a9709d8574acb532110N.exe

Executes dropped EXE 1 IoCs

pid	Process
3468	bkgrnd.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4760-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x00090000000233ff-7.dat	upx
behavioral2/memory/4760-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/3468-18-0x0000000000400000-0x000000000040F000-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	0ba81c0da14a6a9709d8574acb532110N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bkgrnd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4760 wrote to memory of 3468	4760	0ba81c0da14a6a9709d8574acb532110N.exe	79
PID 4760 wrote to memory of 3468	4760	0ba81c0da14a6a9709d8574acb532110N.exe	79
PID 4760 wrote to memory of 3468	4760	0ba81c0da14a6a9709d8574acb532110N.exe	79

C:\Users\Admin\AppData\Local\Temp\0ba81c0da14a6a9709d8574acb532110N.exe
"C:\Users\Admin\AppData\Local\Temp\0ba81c0da14a6a9709d8574acb532110N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4760
- 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:3468

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
59KB

MD5
0d86869768751b06397e38204ba9e8b6

SHA1
4d0862bdeebb1429f5da0438934fe9334fa68e59

SHA256
38f45b293c0e5c2f3bd22046547c06b053938d0e0bf2f8df939c824937937099

SHA512
46144f39536e619073489e8e1f64b7be3a4e59697c1c4042310090b9b701f0d096dc7490218a07cffde94ffeddb3ee600b3eaa85bfd8fad71456220a4dffad45

Download Submit
memory/3468-18-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4760-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4760-1-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/4760-2-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/4760-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download