cfb2951a36a089d7c39015dcc738f854e4f979177fb06a4c0dc883638e886f02

Analysis

max time kernel
147s
max time network
154s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
13/09/2024, 08:40

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General

Target

uninstall.exe
Size

74KB
MD5

c165096c689605394eccac4c2140f8c5
SHA1

bef5b485da0682f62d9a6a81981e87f24d66d5ee
SHA256

aa9ec2f3028719e7e352037634117a524f9c7a0689f0815c785b9ce3b4dd960f
SHA512

5327dbf0e8c921b4ac570ff7605229cebc9fc5f4071af594551e0864ade028fc6736fd1525b8c591ec576d8d94fca67210bd4a311a3fc71a4ca6bcd2f5ca37ee
SSDEEP

1536:XmsAYBdTU9fEAIS2PEtuugdLeAyNxS7GlSK8KPKVfJcqm:WfY/TU9fE9PEtuuceALsS3pVfWqm

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1724	Un_A.exe

Loads dropped DLL 2 IoCs

pid	Process
1724	Un_A.exe
1724	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.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 1724	4648	uninstall.exe	81
PID 4648 wrote to memory of 1724	4648	uninstall.exe	81
PID 4648 wrote to memory of 1724	4648	uninstall.exe	81

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4648
- 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\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1724

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\nskAC30.tmp\LangDLL.dll

Filesize
5KB

MD5
68b287f4067ba013e34a1339afdb1ea8

SHA1
45ad585b3cc8e5a6af7b68f5d8269c97992130b3

SHA256
18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026

SHA512
06c38bbb07fb55256f3cdc24e77b3c8f3214f25bfd140b521a39d167113bf307a7e8d24e445d510bc5e4e41d33c9173bb14e3f2a38bc29a0e3d08c1f0dca4bdb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nskAC30.tmp\System.dll

Filesize
12KB

MD5
cff85c549d536f651d4fb8387f1976f2

SHA1
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

SHA256
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

SHA512
531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
74KB

MD5
c165096c689605394eccac4c2140f8c5

SHA1
bef5b485da0682f62d9a6a81981e87f24d66d5ee

SHA256
aa9ec2f3028719e7e352037634117a524f9c7a0689f0815c785b9ce3b4dd960f

SHA512
5327dbf0e8c921b4ac570ff7605229cebc9fc5f4071af594551e0864ade028fc6736fd1525b8c591ec576d8d94fca67210bd4a311a3fc71a4ca6bcd2f5ca37ee

Download Submit