35eb2d9458b5cf967f2db1cadc8a71675d4205b4ce7b5f28e05d111e865340ad

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
13-05-2024 23:42

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General

Target

uninstall.exe
Size

63KB
MD5

f8d6ebf478d5bfade14535f056b9b66f
SHA1

483a691dcb923101626bafb87b584deb9d74f61c
SHA256

343fb9291ce225ff187b288cd5283038e9b49014abcf92c6ab59ee2b771685b3
SHA512

bf9fd99357cf678af0c75f9c880267e5d6c6424ddef70217c909a70efc14a2a1fbc8b1e2f3da5c5cc7eb96ed9aef7ca9d542bbb74faad06c197c00ffaabcf075
SSDEEP

1536:CU+dcy3fxBk9UmZHs/hcSgdLeAyNGdsjrRDN:CNzPHk9MpcSceAbsHv

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Un_A.exe

pid process

2704 Un_A.exe
Loads dropped DLL 1 IoCs

Processes:

uninstall.exe

pid process

1992 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

2704 Un_A.exe

pid	process
2704	Un_A.exe

pid	process
1992	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
2704	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

uninstall.exe

description	pid	process	target process
PID 1992 wrote to memory of 2704	1992	uninstall.exe	Un_A.exe
PID 1992 wrote to memory of 2704	1992	uninstall.exe	Un_A.exe
PID 1992 wrote to memory of 2704	1992	uninstall.exe	Un_A.exe
PID 1992 wrote to memory of 2704	1992	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:1992

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:2704

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
63KB

MD5
f8d6ebf478d5bfade14535f056b9b66f

SHA1
483a691dcb923101626bafb87b584deb9d74f61c

SHA256
343fb9291ce225ff187b288cd5283038e9b49014abcf92c6ab59ee2b771685b3

SHA512
bf9fd99357cf678af0c75f9c880267e5d6c6424ddef70217c909a70efc14a2a1fbc8b1e2f3da5c5cc7eb96ed9aef7ca9d542bbb74faad06c197c00ffaabcf075

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