4d4a9dd8b239d394f1998b481cdf83f869be2af2d8d568fcb47648d0d42bb71c

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 05:03

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General

Target

$SYSDIR/$SYSDIR/$_1_.exe
Size

53KB
MD5

874577528befed676900d88050fcc4ab
SHA1

418618ad890702b307734b25df7f78fa43fb3a60
SHA256

5596504f8ec18128105418f6ec2490a242ed6732eae435b7514d4ad073dbcc42
SHA512

fb0e113abc158d8dfd1aa5af907598694ed92d940ffc257e6484796e8dc6c4c12b14d28193cdceaf173a5360b7a117ee572ad58465e1baf9dd5f66e1d56d8e22
SSDEEP

768:KHJd0TpH2+bQ2dUWVX9Hfv1JMWmtLEJOyuBxG0D3mjfS3XJVJRn35qlXF3pm0Efd:KpgpHzb9dZVX9fHMvG0D3XJt5q9VSf2k

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4756	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
4756	Au_.exe
4756	Au_.exe
4756	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	$_1_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral10/files/0x0007000000023459-3.dat	nsis_installer_1
behavioral10/files/0x0007000000023459-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 4756	220	$_1_.exe	82
PID 220 wrote to memory of 4756	220	$_1_.exe	82
PID 220 wrote to memory of 4756	220	$_1_.exe	82

C:\Users\Admin\AppData\Local\Temp\$SYSDIR\$SYSDIR\$_1_.exe
"C:\Users\Admin\AppData\Local\Temp\$SYSDIR\$SYSDIR\$_1_.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:220
- 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:4756

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\nsk8704.tmp\InstallOptions.dll

Filesize
14KB

MD5
325b008aec81e5aaa57096f05d4212b5

SHA1
27a2d89747a20305b6518438eff5b9f57f7df5c3

SHA256
c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

SHA512
18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsk8704.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsk8704.tmp\validate.ini

Filesize
457B

MD5
5eabb4c73a5f6706bb855156a973f688

SHA1
dbfa4c58822348daf1024d76933949f9f09d272f

SHA256
b05f468fa6ad0b274ac200cac4dbf68cd2f9becd0f899bfc941e546472b4ecd0

SHA512
3abfc83ce70a484b429ff28d1214c992fb0f408c6c13784a7f301566f7dcc271e64ed4c2ba61caea5333a84785a31e90c7a3f6f73db0f753acc236db95fddfdc

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsk8704.tmp\validate.ini

Filesize
530B

MD5
526bf611ca4054d15a2b3da4d7814829

SHA1
c0bcdcecca4b718078008a5f0c93fc42d670a1d6

SHA256
43afa823404ec3f9c9d3ae6c971775ca380d0b45f5d216173ce9008c9319dea2

SHA512
7749db45557a60c6469eabe043a87106b827ac94d651ce7332f70e6c425e6f31f5fa51931bbe82b79ca4e0fa35c29582d90b57ab5fb9153a1c4403ba18e8e49f

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
53KB

MD5
874577528befed676900d88050fcc4ab

SHA1
418618ad890702b307734b25df7f78fa43fb3a60

SHA256
5596504f8ec18128105418f6ec2490a242ed6732eae435b7514d4ad073dbcc42

SHA512
fb0e113abc158d8dfd1aa5af907598694ed92d940ffc257e6484796e8dc6c4c12b14d28193cdceaf173a5360b7a117ee572ad58465e1baf9dd5f66e1d56d8e22

Download Submit