b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359e

Analysis

max time kernel
94s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 09:17

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General

Target

b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359eN.exe
Size

67KB
MD5

694d8bfd652759013976537a57f0b520
SHA1

fccff9ab35453ec423dfca7a8eb6a42faa2cf089
SHA256

b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359e
SHA512

fb36df6ef6989e18f5bce835a47f97c4c58153c9055e4e1dfc969f7e5b9704856ca47158e2e29c69b6de2ada26f955c52e7f83a9ac4bdd91e869f7db9b711820
SSDEEP

768:r8eRH+MlFh0pDpuJ84WEi+U6sh7iQroCHmyf+RjFBSuB2XpfsPpzSd3xyV:r9l+W8xFt6sh7iQroCoRB0u0sPpzStxO

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	b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359eN.exe

Executes dropped EXE 1 IoCs

pid	Process
4428	bkgrnd.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3764-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x000c000000023b08-7.dat	upx
behavioral2/memory/3764-13-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/4428-28-0x0000000000400000-0x000000000040F000-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	b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bkgrnd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3764 wrote to memory of 4428	3764	b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359eN.exe	82
PID 3764 wrote to memory of 4428	3764	b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359eN.exe	82
PID 3764 wrote to memory of 4428	3764	b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359eN.exe	82

C:\Users\Admin\AppData\Local\Temp\b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359eN.exe
"C:\Users\Admin\AppData\Local\Temp\b14def9d7279dd3a9008175e0572d5d4ad3885a5f3af73eb546b690cce97359eN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3764
- 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:4428

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
67KB

MD5
335a2f40e1ae476dd48e161f269448f0

SHA1
391dd84e7a1a086a33c2a0032db47804051d37f5

SHA256
ac7f918d67ee5b61a790d5f708821e8f72f411aed9c0eebd25eb98f595861360

SHA512
285597779107898b15a01c5d423aa968b63378a67f7efb6c5c1fe5d7df04dab7a8f0bc7ac6a1348e5ec19268c3120307a3285601b8d0f191aacc83a5fa57f318

Download Submit
memory/3764-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3764-1-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/3764-2-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/3764-13-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4428-28-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download