06c2dff99c92ad35dc3b83ac8608002a5b0fe080fcd9d321c223ed1a31267d61

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 08:46

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General

Target

uninstall.exe
Size

74KB
MD5

2a1378d591f9835141df97955e87eece
SHA1

7d310b5aa3a0f505752a70d9e194a9f0fc9627f8
SHA256

be673d61bddf3ea627e583646b8ac9db11baca821a921e35955eaf6f9d1e8e53
SHA512

0f82d8c2c96b5b1ec0f65099bc7f880b30d2adc27955a29bb563ae6e117473a108440da8f43a6351523154d27fc42fc6a8f402bfcebfa94674153bde6dea6ff2
SSDEEP

1536:XmsAYBdTU9fEAIS2PEtuugdLeAyNxSwp8ghaOOqG+HX:WfY/TU9fE9PEtuuceArwp8tpGX

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1728	Un_A.exe

Loads dropped DLL 3 IoCs

pid	Process
2436	uninstall.exe
1728	Un_A.exe
1728	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 behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1728	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 1728	2436	uninstall.exe	30
PID 2436 wrote to memory of 1728	2436	uninstall.exe	30
PID 2436 wrote to memory of 1728	2436	uninstall.exe	30
PID 2436 wrote to memory of 1728	2436	uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2436
- 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
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1728

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\~nsuA.tmp\Un_A.exe

Filesize
74KB

MD5
2a1378d591f9835141df97955e87eece

SHA1
7d310b5aa3a0f505752a70d9e194a9f0fc9627f8

SHA256
be673d61bddf3ea627e583646b8ac9db11baca821a921e35955eaf6f9d1e8e53

SHA512
0f82d8c2c96b5b1ec0f65099bc7f880b30d2adc27955a29bb563ae6e117473a108440da8f43a6351523154d27fc42fc6a8f402bfcebfa94674153bde6dea6ff2

Download Submit
\Users\Admin\AppData\Local\Temp\nsj9E35.tmp\LangDLL.dll

Filesize
5KB

MD5
68b287f4067ba013e34a1339afdb1ea8

SHA1
45ad585b3cc8e5a6af7b68f5d8269c97992130b3

SHA256
18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026

SHA512
06c38bbb07fb55256f3cdc24e77b3c8f3214f25bfd140b521a39d167113bf307a7e8d24e445d510bc5e4e41d33c9173bb14e3f2a38bc29a0e3d08c1f0dca4bdb

Download Submit
\Users\Admin\AppData\Local\Temp\nsj9E35.tmp\System.dll

Filesize
12KB

MD5
cff85c549d536f651d4fb8387f1976f2

SHA1
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

SHA256
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

SHA512
531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

Download Submit