0c4a85431263ae8c6e92df33ad45505af6201ee32a23d71b331b72701ff15144

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
01-08-2024 21:11

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General

Target

$SYSDIR/$SYSDIR/$_14_.exe
Size

70KB
MD5

feaa04bba26d82e47b364bf3fa492ba1
SHA1

295ef48964288a63236192c2ea439cfd61c4a7e8
SHA256

095e81583257ab1bba0d2634f7feb31ed004edd9d74908e46d7b5bb1e3e0ceca
SHA512

3c2d4efa692b8bb6fb3edf69ef7543a4f05af29ae91adfcc3858b18b980bc8129de41a56b00a8f16295aa4dc5255864cc81f4e06ce76ad86d8c3a8e001094fe3
SSDEEP

1536:zu4EQalMK/ewGnh0mJ6Mbi6oDCypeKFl0OyY:zNyah0mJ6M2B7nsY

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2780	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2688	$_14_.exe
2780	Au_.exe

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	$_14_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral7/files/0x0006000000016de1-2.dat	nsis_installer_1
behavioral7/files/0x0006000000016de1-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2780	2688	$_14_.exe	30
PID 2688 wrote to memory of 2780	2688	$_14_.exe	30
PID 2688 wrote to memory of 2780	2688	$_14_.exe	30
PID 2688 wrote to memory of 2780	2688	$_14_.exe	30

C:\Users\Admin\AppData\Local\Temp\$SYSDIR\$SYSDIR\$_14_.exe
"C:\Users\Admin\AppData\Local\Temp\$SYSDIR\$SYSDIR\$_14_.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\$SYSDIR\$SYSDIR\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\nsy6B63.tmp\validate.ini

Filesize
457B

MD5
fbb828b95d53ad5fa935f323ff9b87e5

SHA1
80564141599a0d431b338fc653b52c299dc4bc23

SHA256
810ed1ea9c05f7ad11da2cbfb5695dd1e83374a8f9886dc5df19f92af96b2d33

SHA512
2b759d08a79072d92380fa2243cf0dd4b1e4042d3df5fea54e8b4ca828ce205954d5e1f771d7280de45cf741be67100d302b14cfaeb9134f34b7c12f03c5c018

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\Users\Admin\AppData\Local\Temp\nsy6B63.tmp\InstallOptions.dll

Filesize
14KB

MD5
271b5d1043c4402f08ddeae383f6979c

SHA1
2b88c58aa27bfb4979239579cd65d4c6c67a5295

SHA256
90485cb175686c3e97b32ebf99daa939c1a6f46e7031f71b72b81cd114fd5b51

SHA512
f8bd4b316726f05647162bb52a2aeb4a6cf5ee976fdb7817a3d25b868b83fb482c38d078f01d3a629afb0d6fa6ce409b2b3404398563137e22010074f529c11b

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\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
70KB

MD5
feaa04bba26d82e47b364bf3fa492ba1

SHA1
295ef48964288a63236192c2ea439cfd61c4a7e8

SHA256
095e81583257ab1bba0d2634f7feb31ed004edd9d74908e46d7b5bb1e3e0ceca

SHA512
3c2d4efa692b8bb6fb3edf69ef7543a4f05af29ae91adfcc3858b18b980bc8129de41a56b00a8f16295aa4dc5255864cc81f4e06ce76ad86d8c3a8e001094fe3

Download Submit