fce9b30752eedfa982de6dd9ae7cffd4eee6d41a9b33f5bed9753dbdea33c467

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/10/2024, 06:44

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General

Target

uninstall.exe
Size

295KB
MD5

065d63faf4be10b13bd3724c95c732a8
SHA1

cb1d8509dae4f813f2eb8d50d2c770e2c00bba86
SHA256

11ed5d4652f4d3f093454effd7a2d79e09acf2dd471f3928fdefdc1659720d6a
SHA512

830a90b272185d739d7576629a2d24f251a010fac44897d950b6cfeb65e0a0f7c5739b25561aecee62afc5918b5c1713bd1f392d175204dc87a920c27c2d2bda
SSDEEP

6144:Ee34uBjKTK0HVkUEYA2q5NbrWN83gQwwDuzMn6yDkvE39kojTxDtEh:HBjeKuVnvon+N83LwwiAn6KkM33nxDg

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2808	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2712	uninstall.exe
2808	Au_.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
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	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral17/files/0x0005000000018fa2-2.dat	nsis_installer_1
behavioral17/files/0x0005000000018fa2-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2808	2712	uninstall.exe	30
PID 2712 wrote to memory of 2808	2712	uninstall.exe	30
PID 2712 wrote to memory of 2808	2712	uninstall.exe	30
PID 2712 wrote to memory of 2808	2712	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:2712
- 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\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsj55A0.tmp\aminsis.dll

Filesize
567KB

MD5
f346047b13f37f79c462e59a6319faa1

SHA1
ce9e7cb9719000a69b463fe024c81229e322279f

SHA256
e78e0e61707cabec8383f1e74da9db8e0fa123a3a7b36f0080d70fbaed6f7453

SHA512
429209cc489ba9ac2d62055b128efb3cded3e31f966c7cdb1aee592ec7a54ab090526705fa2519498d92eb4bc2efa141cd83adc6c251b793388ad1208b172167

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\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
295KB

MD5
065d63faf4be10b13bd3724c95c732a8

SHA1
cb1d8509dae4f813f2eb8d50d2c770e2c00bba86

SHA256
11ed5d4652f4d3f093454effd7a2d79e09acf2dd471f3928fdefdc1659720d6a

SHA512
830a90b272185d739d7576629a2d24f251a010fac44897d950b6cfeb65e0a0f7c5739b25561aecee62afc5918b5c1713bd1f392d175204dc87a920c27c2d2bda

Download Submit