da98c0146232931eacc17bca42a401f463810cce080d5e490ba36099ff3b5ead

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-05-2024 03:48

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General

Target

da98c0146232931eacc17bca42a401f463810cce080d5e490ba36099ff3b5ead.exe
Size

56KB
MD5

204c0ea4a859f114859f243ba6c62057
SHA1

b68ad81deadd5c3dc60d938118c1556c6921d3b0
SHA256

da98c0146232931eacc17bca42a401f463810cce080d5e490ba36099ff3b5ead
SHA512

8c42fbd4c20f25a9d6c7824f1d944275e9a9b9a2b5f29aa832e454c9fedf37615123db0231c539dbaf6ebc3050aad778fd06441d8a72f8a2526c61f48c1554b8
SSDEEP

768:r8eRH+MlFh0pDpuJ84WEi+U6sh7iQroCHmyf+RjFBSuB2XpfsG5t:r9l+W8xFt6sh7iQroCoRB0u0sY

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/3392-0-0x0000000000400000-0x000000000040F000-memory.dmp	UPX
behavioral2/files/0x00070000000232a4-7.dat	UPX
behavioral2/memory/3392-11-0x0000000000400000-0x000000000040F000-memory.dmp	UPX
behavioral2/memory/4376-12-0x0000000000400000-0x000000000040F000-memory.dmp	UPX

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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	da98c0146232931eacc17bca42a401f463810cce080d5e490ba36099ff3b5ead.exe

Executes dropped EXE 1 IoCs

pid	Process
4376	bkgrnd.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3392-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x00070000000232a4-7.dat	upx
behavioral2/memory/3392-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/4376-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3392 wrote to memory of 4376	3392	da98c0146232931eacc17bca42a401f463810cce080d5e490ba36099ff3b5ead.exe	82
PID 3392 wrote to memory of 4376	3392	da98c0146232931eacc17bca42a401f463810cce080d5e490ba36099ff3b5ead.exe	82
PID 3392 wrote to memory of 4376	3392	da98c0146232931eacc17bca42a401f463810cce080d5e490ba36099ff3b5ead.exe	82

C:\Users\Admin\AppData\Local\Temp\da98c0146232931eacc17bca42a401f463810cce080d5e490ba36099ff3b5ead.exe
"C:\Users\Admin\AppData\Local\Temp\da98c0146232931eacc17bca42a401f463810cce080d5e490ba36099ff3b5ead.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe
  "C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe"
  2⤵
  - Executes dropped EXE
  PID:4376

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
56KB

MD5
0adf510c0a3b612cc5cd66bffc623ae3

SHA1
f34821567670fc4d038dad5349e0f15a8652fb26

SHA256
e822cd6ee6670980ec4b8f63c82500dd8e48ef58012dc4042d0510b6248c73cb

SHA512
f46715fcc787730fc79d770c6def01a57b75779852b592dbc5256cdbb1f230f7d8dc1b962ad31d54f3eebf8f9e53e07cf7c389457aa168f74c8242968bda201b

Download Submit
memory/3392-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3392-2-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/3392-1-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/3392-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4376-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download