bda512b2e0b17d5222586854c8d87566feec49798e6a4a7c7664a4ac737c93f8

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
25/08/2024, 01:53

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General

Target

$R0/Uninstall NekozRealistic.exe
Size

147KB
MD5

b28776890bfef8b9f79a518ac5d8a4bb
SHA1

9504a399bc7770283dbcacac5e6566fa02f1d363
SHA256

d70be30e8f0302ab55d45857ade52951916bf3c485c9191a343d32b117bf1e26
SHA512

ef4a5d10baef18f45421458e59702b7d2dc1017f9739291ad91676cfdb20d8e70bc9a85d441a7cedd7b3f6cfce5185f0919efa87f198d21b4f2fcae67f8bc422
SSDEEP

3072:gn77v00hEoDEtaupSeqPKgrE4OidpR0WaH2tvhOEA1RJCir86SrSrv6Ia3E:g740I5SJLE4LdpR0Ws2t0EyL+ya0

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2500	Un_A.exe

Loads dropped DLL 7 IoCs

pid	Process
1008	Uninstall NekozRealistic.exe
2500	Un_A.exe
2500	Un_A.exe
2500	Un_A.exe
2500	Un_A.exe
2500	Un_A.exe
2500	Un_A.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	Uninstall NekozRealistic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2500	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 2500	1008	Uninstall NekozRealistic.exe	31
PID 1008 wrote to memory of 2500	1008	Uninstall NekozRealistic.exe	31
PID 1008 wrote to memory of 2500	1008	Uninstall NekozRealistic.exe	31
PID 1008 wrote to memory of 2500	1008	Uninstall NekozRealistic.exe	31

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall NekozRealistic.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall NekozRealistic.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2500

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

\Users\Admin\AppData\Local\Temp\nstE65A.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

Download Submit
\Users\Admin\AppData\Local\Temp\nstE65A.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

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\Users\Admin\AppData\Local\Temp\nstE65A.tmp\WinShell.dll

Filesize
3KB

MD5
1cc7c37b7e0c8cd8bf04b6cc283e1e56

SHA1
0b9519763be6625bd5abce175dcc59c96d100d4c

SHA256
9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

SHA512
7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

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\Users\Admin\AppData\Local\Temp\nstE65A.tmp\nsExec.dll

Filesize
6KB

MD5
ec0504e6b8a11d5aad43b296beeb84b2

SHA1
91b5ce085130c8c7194d66b2439ec9e1c206497c

SHA256
5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

SHA512
3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

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\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
147KB

MD5
b28776890bfef8b9f79a518ac5d8a4bb

SHA1
9504a399bc7770283dbcacac5e6566fa02f1d363

SHA256
d70be30e8f0302ab55d45857ade52951916bf3c485c9191a343d32b117bf1e26

SHA512
ef4a5d10baef18f45421458e59702b7d2dc1017f9739291ad91676cfdb20d8e70bc9a85d441a7cedd7b3f6cfce5185f0919efa87f198d21b4f2fcae67f8bc422

Download Submit