3f3fb954b50468dd4f5e72f367fde92071d80856984c6b7ef0a2d0bd9ae37048

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 21:31

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General

Target

uninstall.exe
Size

285KB
MD5

9277ad516dc2a4dfa243eb874e2812a6
SHA1

3bb68f7f16471fc0eb6b7ad0445d5ed309f82d75
SHA256

67aa3d588c1f21a83c918b46e1a6bf864a4bbbcfa216d16d42bcf2a89585ffd5
SHA512

bf3a7286557878e76e88071d9c208a1e2e1fa330cddba969d6f1d3cd7d003e1858a0f232d3e9bd34fed2ba2f8229a13e8d0938a04a774e92a564823877af3b34
SSDEEP

6144:Ee340gpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x12:hceZHkwuPikQ7lKH5p5H9x12

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2472	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
1628	uninstall.exe
2472	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
behavioral13/files/0x0005000000019d20-2.dat	nsis_installer_1
behavioral13/files/0x0005000000019d20-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 2472	1628	uninstall.exe	31
PID 1628 wrote to memory of 2472	1628	uninstall.exe	31
PID 1628 wrote to memory of 2472	1628	uninstall.exe	31
PID 1628 wrote to memory of 2472	1628	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:1628
- 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:2472

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\nsyFDA1.tmp\aminsis.dll

Filesize
559KB

MD5
51ba1095f0ae45a2d444bea506cb9ad4

SHA1
038a5d53d055a6d440bd2c8864c2f51db206c5e5

SHA256
b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

SHA512
f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361

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

Filesize
285KB

MD5
9277ad516dc2a4dfa243eb874e2812a6

SHA1
3bb68f7f16471fc0eb6b7ad0445d5ed309f82d75

SHA256
67aa3d588c1f21a83c918b46e1a6bf864a4bbbcfa216d16d42bcf2a89585ffd5

SHA512
bf3a7286557878e76e88071d9c208a1e2e1fa330cddba969d6f1d3cd7d003e1858a0f232d3e9bd34fed2ba2f8229a13e8d0938a04a774e92a564823877af3b34

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