9ccc6b26315468a08a3822ff6d180d5525bbd3c80b91a0e31502e256876d033f

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28-05-2024 02:02

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General

Target

uninstall.exe
Size

58KB
MD5

a53a912fab731bed752d8421d7de4dd2
SHA1

90289c2fa0c47350cd85ea1cb5d5e13de27f551a
SHA256

960293e0cfc7f99fe7d6f90065e3712c0ebfdfb3a259e9d2758fe305aa57c61a
SHA512

f9e2c3ccf04664bfd90f8d30ab35e8be64b5c6cc0b5d8d795a7d7b514a50277831637a4acbbe03113bb3c17abec9765122e3122e7c12672e278505d2d56feda6
SSDEEP

1536:j1E/rzW2pakRmB7BW3nKsciPgdLeAyN0X7qgFXYtP:j1E/rS2paccKntcqceAD7vFXYtP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Un_A.exe

pid process

2088 Un_A.exe
Loads dropped DLL 1 IoCs

Processes:

uninstall.exe

pid process

944 uninstall.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
NSIS installer 2 IoCs
installer

Processes:

resource yara_rule

\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe nsis_installer_1
\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe nsis_installer_2
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Un_A.exe

pid process

2088 Un_A.exe

pid	process
2088	Un_A.exe

pid	process
944	uninstall.exe

resource	yara_rule
\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe	nsis_installer_1
\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe	nsis_installer_2

pid	process
2088	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

uninstall.exe

description	pid	process	target process
PID 944 wrote to memory of 2088	944	uninstall.exe	Un_A.exe
PID 944 wrote to memory of 2088	944	uninstall.exe	Un_A.exe
PID 944 wrote to memory of 2088	944	uninstall.exe	Un_A.exe
PID 944 wrote to memory of 2088	944	uninstall.exe	Un_A.exe

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:944

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
- Suspicious behavior: GetForegroundWindowSpam
PID:2088

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
Filesize
58KB

MD5
a53a912fab731bed752d8421d7de4dd2

SHA1
90289c2fa0c47350cd85ea1cb5d5e13de27f551a

SHA256
960293e0cfc7f99fe7d6f90065e3712c0ebfdfb3a259e9d2758fe305aa57c61a

SHA512
f9e2c3ccf04664bfd90f8d30ab35e8be64b5c6cc0b5d8d795a7d7b514a50277831637a4acbbe03113bb3c17abec9765122e3122e7c12672e278505d2d56feda6

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