cc39e025557e717e98bd6e33c9402c9d51cb824753064a3594751a3131dff95f

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
28/06/2024, 05:43

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General

Target

$PROGRAMFILES/Toggle Downloader/Toggle Downloader Adobe Flash Player (Firefox, Chrome y Opera)/$PROG.exe
Size

863KB
MD5

27ecbaf65445d559b5fe36fc9db2fb4f
SHA1

3a121e2f920406c91d5293e090ba63b49d81cf55
SHA256

eb213336162535fe63cd8870d11cf0341b6c9b365cc2e50e7267596e30c6e8c6
SHA512

1ac383eb6b77f489d329928388974cab5c5376860fcb48e6ed0a09d08e7cc2a2663b961e66165b397763a3127e67716a04bcb8bbd69e0318403b9caa2e098264
SSDEEP

12288:hCzd7N7otPKnsvAH6x0GbQP3XoIq5tLgVHkCAQlvtrN:hCzFvnsm6iGbQ/oIKikelvj

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1508	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2220	$PROG.exe
1508	Au_.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
behavioral21/files/0x0039000000015cc7-2.dat	nsis_installer_1
behavioral21/files/0x0039000000015cc7-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1508	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 1508	2220	$PROG.exe	28
PID 2220 wrote to memory of 1508	2220	$PROG.exe	28
PID 2220 wrote to memory of 1508	2220	$PROG.exe	28
PID 2220 wrote to memory of 1508	2220	$PROG.exe	28

C:\Users\Admin\AppData\Local\Temp\$PROGRAMFILES\Toggle Downloader\Toggle Downloader Adobe Flash Player (Firefox, Chrome y Opera)\$PROG.exe
"C:\Users\Admin\AppData\Local\Temp\$PROGRAMFILES\Toggle Downloader\Toggle Downloader Adobe Flash Player (Firefox, Chrome y Opera)\$PROG.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- 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\$PROGRAMFILES\Toggle Downloader\Toggle Downloader Adobe Flash Player (Firefox, Chrome y Opera)\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1508

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

C:\Users\Admin\AppData\Local\Temp\nso1FE1.tmp\ioSpecial.ini

Filesize
610B

MD5
8b239295fb9677b82de644a49d15c8c7

SHA1
a45269281115095baa74cc5d16abb21ca0e8b2d5

SHA256
9e31a72bea7610ee83ed0b130402f00c33a68ac33296a7eb5b1d85291a2e1875

SHA512
174380afb12d8f9022c578e194b7f9f5c8b849993833e70f1951ec7c1380f6cc819423974aa6c2661f9ef2c4ccf12983f6e402bae84a8392f39a35d1f5ec0577

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C:\Users\Admin\AppData\Local\Temp\nso1FE1.tmp\ioSpecial.ini

Filesize
623B

MD5
0ca5d2908f0efa803b4c7d5d99db3b6b

SHA1
2e19b20634592e780ca5c20393fc6603b0cd5050

SHA256
db983746145bd122d87af9f0ba79a9478ea670c2f757fb12219643a8c535d81d

SHA512
986b419869b063ee03350a8e0decad7222aba117af9ed60edc2d21948d7282d3f9d82e9befea5eed2536b95968412988d90c7a415ba2d1469a6cb254ed020707

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\Users\Admin\AppData\Local\Temp\nso1FE1.tmp\InstallOptions.dll

Filesize
14KB

MD5
325b008aec81e5aaa57096f05d4212b5

SHA1
27a2d89747a20305b6518438eff5b9f57f7df5c3

SHA256
c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

SHA512
18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

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

Filesize
863KB

MD5
27ecbaf65445d559b5fe36fc9db2fb4f

SHA1
3a121e2f920406c91d5293e090ba63b49d81cf55

SHA256
eb213336162535fe63cd8870d11cf0341b6c9b365cc2e50e7267596e30c6e8c6

SHA512
1ac383eb6b77f489d329928388974cab5c5376860fcb48e6ed0a09d08e7cc2a2663b961e66165b397763a3127e67716a04bcb8bbd69e0318403b9caa2e098264

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