bfe585fde57162ecc54ee3b34d91952b7ad12cbe85bfc923eeeff434815eb0bc

Analysis

max time kernel
120s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 11:13

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General

Target
Uninstall.exe
Size 59KB
Sample240603-nbrslscd7w
SHA256 57570d68d9ad4a05b31d189749deba5117349dd5f9b0b730346532eb75994148
MD5 4cd58b6fdf7b31a3cbe9c4e405bf1376
SHA1 b34430e909a7798687f29d914c4b23b5c4a24bb8
SHA512 640b5d0eb675b78cff16e1c296a50516aa55bc11a48a053094e18b22a300784772dfe8f1e90daa455815e70123f016d3e8bcdcd4d33ee6f8c33b98c21ec623fd
SSDEEP 1536:kHYMiClDhdyA5x5Z0DvyecncS7eFx3IiFI:QYjClDhQlDvrccfFx3JI
MD5 SHA1 SHA512 SSDEEP

Score

4^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
528	Un_A.exe

Loads dropped DLL 1 IoCs

pid	Process
2140	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

resource	yara_rule
behavioral5/files/0x0009000000014aec-2.dat	nsis_installer_1
behavioral5/files/0x0009000000014aec-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
528	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 528	2140	Uninstall.exe	28
PID 2140 wrote to memory of 528	2140	Uninstall.exe	28
PID 2140 wrote to memory of 528	2140	Uninstall.exe	28
PID 2140 wrote to memory of 528	2140	Uninstall.exe	28

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:2140
- 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:528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Un_A.exe

Path \Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
Size 59KB
SHA256 57570d68d9ad4a05b31d189749deba5117349dd5f9b0b730346532eb75994148
MD5 4cd58b6fdf7b31a3cbe9c4e405bf1376
SHA1 b34430e909a7798687f29d914c4b23b5c4a24bb8
SHA512 640b5d0eb675b78cff16e1c296a50516aa55bc11a48a053094e18b22a300784772dfe8f1e90daa455815e70123f016d3e8bcdcd4d33ee6f8c33b98c21ec623fd
SSDEEP 1536:kHYMiClDhdyA5x5Z0DvyecncS7eFx3IiFI:QYjClDhQlDvrccfFx3JI
MD5 SHA1 SHA512 SSDEEP

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