e9dfbd40f23115cd73a92aa2a01394d4a599aa2b259e3e99c8f2144772032296

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/10/2024, 10:18

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General

Target

uninstall.exe
Size

94KB
MD5

bcf7af2309f13a84657667f03c461638
SHA1

d1e23e7bd69f75edcc630aee5b5fba7a6b32e9a6
SHA256

3cc91fc63e628662f1188accc0a03c0f8f411c134a5d26573ced60c7e753d37b
SHA512

9fae6d459f9ba6fa7f42521c0c22006ca8f7e4f22a5cdf335d8fcb6a44a32c6fdeebbdaa3c6808d9ac6d9fc133005c2786ac271b02948d1d48958fe88c08284a
SSDEEP

1536:ILXB65939tY6HBg4sXJLoYo7YFdPZK8oN:ILk395hYXJ31ZYN

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2528	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
1708	uninstall.exe
2528	Au_.exe
2528	Au_.exe
2528	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
behavioral27/files/0x000500000001960c-2.dat	nsis_installer_1
behavioral27/files/0x000500000001960c-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 2528	1708	uninstall.exe	31
PID 1708 wrote to memory of 2528	1708	uninstall.exe	31
PID 1708 wrote to memory of 2528	1708	uninstall.exe	31
PID 1708 wrote to memory of 2528	1708	uninstall.exe	31
PID 1708 wrote to memory of 2528	1708	uninstall.exe	31
PID 1708 wrote to memory of 2528	1708	uninstall.exe	31
PID 1708 wrote to memory of 2528	1708	uninstall.exe	31

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:1708
- 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:2528

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

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

Filesize
94KB

MD5
bcf7af2309f13a84657667f03c461638

SHA1
d1e23e7bd69f75edcc630aee5b5fba7a6b32e9a6

SHA256
3cc91fc63e628662f1188accc0a03c0f8f411c134a5d26573ced60c7e753d37b

SHA512
9fae6d459f9ba6fa7f42521c0c22006ca8f7e4f22a5cdf335d8fcb6a44a32c6fdeebbdaa3c6808d9ac6d9fc133005c2786ac271b02948d1d48958fe88c08284a

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