878ca7e3fb7a90a937afdbe080c055877b4c6334a9589d27e092fd6737a0716f

Analysis

max time kernel
435s
max time network
452s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
27-12-2024 19:55

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General

Target

uninst.exe
Size

138KB
MD5

69f11311116dea38b390d99ccc295b24
SHA1

eceb02f012a978f518f0928a00017fe263aeec8a
SHA256

6f0baf53513b09eee91da1e92a4ac6637e606a645b52adee5fd0402de9232548
SHA512

73fe603810ccfe1ad2d43ab9917d6adbe8c189d558ed709c7f703c7400848a18b0a989d0a5b18e6b5208ab3d7d5880dd686dea38fc32b8bee0a207436b20ba2e
SSDEEP

3072:dnPdzuK8Jdw4TMJw3uXceAuH7v6OjxaJE1WQav1vb2MyE:dnPdudwDzmuT6OjxaBQav1TsE

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4576	Un.exe

Executes dropped EXE 1 IoCs

pid	Process
4576	Un.exe

Loads dropped DLL 6 IoCs

pid	Process
4576	Un.exe
4576	Un.exe
4576	Un.exe
4576	Un.exe
4576	Un.exe
4576	Un.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	uninst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4576	Un.exe
4576	Un.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 4576	2216	uninst.exe	81
PID 2216 wrote to memory of 4576	2216	uninst.exe	81
PID 2216 wrote to memory of 4576	2216	uninst.exe	81

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\~nsu1.tmp\Un.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu1.tmp\Un.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4576

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\nsi75BE.tmp\FindProcDLL.dll

Filesize
3KB

MD5
b4faf654de4284a89eaf7d073e4e1e63

SHA1
8efcfd1ca648e942cbffd27af429784b7fcf514b

SHA256
c0948b2ec36a69f82c08935fac4b212238b6792694f009b93b4bdb478c4f26e3

SHA512
eef31e332be859cf2a64c928bf3b96442f36fe51f1a372c5628264a0d4b2fc7b3e670323c8fb5ffa72db995b8924da2555198e7de7b4f549d9e0f9e6dbb6b388

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsi75BE.tmp\LangDLL.dll

Filesize
5KB

MD5
50016010fb0d8db2bc4cd258ceb43be5

SHA1
44ba95ee12e69da72478cf358c93533a9c7a01dc

SHA256
32230128c18574c1e860dfe4b17fe0334f685740e27bc182e0d525a8948c9c2e

SHA512
ed4cf49f756fbf673449dca20e63dce6d3a612b61f294efc9c3ccebeffa6a1372667932468816d3a7afdb7e5a652760689d8c6d3f331cedee7247404c879a233

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsi75BE.tmp\System.dll

Filesize
12KB

MD5
4add245d4ba34b04f213409bfe504c07

SHA1
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09

SHA256
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706

SHA512
1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsi75BE.tmp\UAC.dll

Filesize
14KB

MD5
adb29e6b186daa765dc750128649b63d

SHA1
160cbdc4cb0ac2c142d361df138c537aa7e708c9

SHA256
2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

SHA512
b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsi75BE.tmp\nsisFirewallW.dll

Filesize
8KB

MD5
f5bf81a102de52a4add21b8a367e54e0

SHA1
cf1e76ffe4a3ecd4dad453112afd33624f16751c

SHA256
53be5716ad80945cb99681d5dbda60492f5dfb206fbfdb776b769b3eeb18d2c2

SHA512
6e280a75f706474ad31b2ce770fa34f54cb598528fac4477c466200a608b79c0f9b84011545595d9ba94331ad08e2f51bd42de91f92379db27686a28ba351256

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsu1.tmp\Un.exe

Filesize
138KB

MD5
69f11311116dea38b390d99ccc295b24

SHA1
eceb02f012a978f518f0928a00017fe263aeec8a

SHA256
6f0baf53513b09eee91da1e92a4ac6637e606a645b52adee5fd0402de9232548

SHA512
73fe603810ccfe1ad2d43ab9917d6adbe8c189d558ed709c7f703c7400848a18b0a989d0a5b18e6b5208ab3d7d5880dd686dea38fc32b8bee0a207436b20ba2e

Download Submit